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AzureSQLConnectivityChecker.ps1
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AzureSQLConnectivityChecker.ps1
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## Copyright (c) Microsoft Corporation.
#Licensed under the MIT license.
#Azure SQL Connectivity Checker
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
#WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
using namespace System
using namespace System.Net
using namespace System.net.Sockets
using namespace System.Collections.Generic
using namespace System.Diagnostics
# Parameter region for when script is run directly
# Supports Single, Elastic Pools and Managed Instance (please provide FQDN, MI public endpoint is supported)
# Supports Azure Synapse / Azure SQL Data Warehouse (*.sql.azuresynapse.net / *.database.windows.net)
# Supports Public Cloud (*.database.windows.net), Azure China (*.database.chinacloudapi.cn), Azure Germany (*.database.cloudapi.de) and Azure Government (*.database.usgovcloudapi.net)
$Server = '.database.windows.net' # or any other supported FQDN
$Database = '' # Set the name of the database you wish to test, 'master' will be used by default if nothing is set
$User = '' # Set the login username you wish to use, 'AzSQLConnCheckerUser' will be used by default if nothing is set
$Password = '' # Set the login password you wish to use, 'AzSQLConnCheckerPassword' will be used by default if nothing is set
# In case you want to hide the password (like during a remote session), uncomment the 2 lines below (by removing leading #) and password will be asked during execution
# $Credentials = Get-Credential -Message "Credentials to test connections to the database (optional)" -User $User
# $Password = $Credentials.GetNetworkCredential().password
# Optional parameters (default values will be used if omitted)
$SendAnonymousUsageData = $true # Set as $true (default) or $false
$RunAdvancedConnectivityPolicyTests = $true # Set as $true (default) or $false#Set as $true (default) or $false, this will download library needed for running advanced connectivity policy tests
$ConnectionAttempts = 1
$DelayBetweenConnections = 1
$CollectNetworkTrace = $true # Set as $true (default) or $false
#EncryptionProtocol = '' # Supported values: 'Tls 1.0', 'Tls 1.1', 'Tls 1.2'; Without this parameter operating system will choose the best protocol to use
# Parameter region when Invoke-Command -ScriptBlock is used
$parameters = $args[0]
if ($null -ne $parameters) {
$Server = $parameters['Server']
$Database = $parameters['Database']
$User = $parameters['User']
$Password = $parameters['Password']
if ($null -ne $parameters['SendAnonymousUsageData']) {
$SendAnonymousUsageData = $parameters['SendAnonymousUsageData']
}
if ($null -ne $parameters['RunAdvancedConnectivityPolicyTests']) {
$RunAdvancedConnectivityPolicyTests = $parameters['RunAdvancedConnectivityPolicyTests']
}
if ($null -ne $parameters['CollectNetworkTrace']) {
$CollectNetworkTrace = $parameters['CollectNetworkTrace']
}
$EncryptionProtocol = $parameters['EncryptionProtocol']
if ($null -ne $parameters['Local']) {
$Local = $parameters['Local']
}
if ($null -ne $parameters['LocalPath']) {
$LocalPath = $parameters['LocalPath']
}
if ($null -ne $parameters['RepositoryBranch']) {
$RepositoryBranch = $parameters['RepositoryBranch']
}
if ($null -ne $parameters['ConnectionAttempts']) {
$ConnectionAttempts = $parameters['ConnectionAttempts']
}
if ($null -ne $parameters['DelayBetweenConnections']) {
$DelayBetweenConnections = $parameters['DelayBetweenConnections']
}
}
if ($null -eq $User -or '' -eq $User) {
$User = 'AzSQLConnCheckerUser'
}
if ($null -eq $Password -or '' -eq $Password) {
$Password = 'AzSQLConnCheckerPassword'
}
if ($null -eq $Database -or '' -eq $Database) {
$Database = 'master'
}
if ($null -eq $Local) {
$Local = $false
}
if ($null -eq $RepositoryBranch) {
$RepositoryBranch = 'master'
}
$CustomerRunningInElevatedMode = $false
if ($PSVersionTable.Platform -eq 'Unix') {
if ((id -u) -eq 0) {
$CustomerRunningInElevatedMode = $true
}
}
else {
$currentPrincipal = New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())
if ($currentPrincipal.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
$CustomerRunningInElevatedMode = $true
}
}
$SQLDBGateways = @(
New-Object PSObject -Property @{Region = "Australia Central"; Gateways = ("20.36.105.0", "20.36.104.6", "20.36.104.7"); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'australiacentral1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Australia Central2"; Gateways = ("20.36.113.0", "20.36.112.6"); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'australiacentral2-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Australia East"; Gateways = ("13.75.149.87", "40.79.161.1", "13.70.112.9"); TRs = ('tr2', 'tr3', 'tr4'); Cluster = 'australiaeast1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Australia South East"; Gateways = ("13.73.109.251", "13.77.48.10", "191.239.192.109", "13.77.49.32"); TRs = ('tr2', 'tr3', 'tr4'); Cluster = 'australiasoutheast1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Brazil South"; Gateways = ("191.233.200.14", "191.234.144.16", "191.234.152.3"); TRs = ('tr11', 'tr12', 'tr15'); Cluster = 'brazilsouth1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Canada Central"; Gateways = ("40.85.224.249", "52.246.152.0", "20.38.144.1"); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'canadacentral1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Canada East"; Gateways = ("40.86.226.166", "52.242.30.154", "40.69.105.9", "40.69.105.10"); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'canadaeast1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Central US"; Gateways = ("13.67.215.62", "52.182.137.15", "104.208.21.1", "13.89.169.20"); TRs = ('tr4', 'tr8', 'tr9'); Cluster = 'centralus1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "China East"; Gateways = ("139.219.130.35"); TRs = ('tr2', 'tr3'); Cluster = 'chinaeast1-a.worker.database.chinacloudapi.cn'; }
New-Object PSObject -Property @{Region = "China East 2"; Gateways = ("40.73.82.1"); TRs = ('tr1', 'tr5', 'tr11'); Cluster = 'chinaeast2-a.worker.database.chinacloudapi.cn'; }
New-Object PSObject -Property @{Region = "China North"; Gateways = ("139.219.15.17"); TRs = ('tr2', 'tr3'); Cluster = 'chinanorth1-a.worker.database.chinacloudapi.cn'; }
New-Object PSObject -Property @{Region = "China North 2"; Gateways = ("40.73.50.0"); TRs = ('tr1', 'tr67', 'tr119'); Cluster = 'chinanorth2-a.worker.database.chinacloudapi.cn'; }
New-Object PSObject -Property @{Region = "East Asia"; Gateways = ("52.175.33.150", "13.75.32.4", "13.75.32.14"); TRs = ('tr4', 'tr8', 'tr9'); Cluster = 'eastasia1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "East US"; Gateways = ("40.121.158.30", "40.79.153.12", "40.78.225.32"); TRs = ('tr7', 'tr8', 'tr9'); Cluster = 'eastus1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "East US 2"; Gateways = ("191.239.224.107", "40.79.84.180", "52.177.185.181", "52.167.104.0", "104.208.150.3"); TRs = ('tr10', 'tr8', 'tr9'); Cluster = 'eastus2-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "France Central"; Gateways = ("40.79.137.0", "40.79.129.1", "40.79.137.8", "40.79.145.12"); TRs = ('tr1', 'tr7', 'tr8'); Cluster = 'francecentral1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "France South"; Gateways = ("40.79.177.0", "40.79.177.10", "40.79.177.12"); TRs = ('tr29', 'tr13', 'tr24'); Cluster = 'francesouth1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Germany Central"; Gateways = ("51.4.144.100"); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'germanycentral1-a.worker.database.cloudapi.de'; }
New-Object PSObject -Property @{Region = "Germany North East"; Gateways = ("51.5.144.179"); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'germanynortheast1-a.worker.database.cloudapi.de'; }
New-Object PSObject -Property @{Region = "Germany North"; Gateways = ("51.116.56.0"); TRs = ('tr1', 'tr3', 'tr4'); Cluster = 'germanynorth1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Germany West Central"; Gateways = ("51.116.152.0", "51.116.240.0", "51.116.248.0"); TRs = ('tr1', 'tr3', 'tr4'); Cluster = 'germanywestcentral1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "India Central"; Gateways = ("104.211.96.159", "104.211.86.30", "104.211.86.31"); TRs = ('tr1', 'tr3', 'tr16'); Cluster = 'indiacentral1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "India South"; Gateways = ("104.211.224.146"); TRs = ('tr1', 'tr2', 'tr5'); Cluster = 'indiasouth1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "India West"; Gateways = ("104.211.160.80", "104.211.144.4"); TRs = ('tr41', 'tr42', 'tr54'); Cluster = 'indiawest1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Japan East"; Gateways = ("13.78.61.196", "40.79.184.8", "40.79.192.5", "13.78.106.224", "13.78.104.32"); TRs = ('tr4', 'tr5', 'tr9'); Cluster = 'japaneast1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Japan West"; Gateways = ("104.214.148.156", "40.74.97.10", "40.74.100.192"); TRs = ('tr11', 'tr12', 'tr13'); Cluster = 'japanwest1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Korea Central"; Gateways = ("52.231.32.42", "52.231.17.22", "52.231.17.23", "20.44.24.32", "20.194.64.33"); TRs = ('tr1', 'tr10', 'tr118'); Cluster = 'koreacentral1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Korea South"; Gateways = ("52.231.200.86", "52.231.151.96"); TRs = ('tr1', 'tr3', 'tr75'); Cluster = 'koreasouth1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "North Central US"; Gateways = ("23.98.55.75", "23.96.178.199", "52.162.104.33", "52.162.105.9"); TRs = ('tr7', 'tr8', 'tr9'); Cluster = 'northcentralus1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "North Europe"; Gateways = ("40.113.93.91", "52.138.224.1", "13.74.104.113"); TRs = ('tr7', 'tr8', 'tr9'); Cluster = 'northeurope1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Norway East"; Gateways = ("51.120.96.0", "51.120.96.33"); TRs = ('tr1', 'tr45', 'tr14'); Cluster = 'norwayeast1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Norway West"; Gateways = ("51.120.216.0"); TRs = ('tr1', 'tr17', 'tr14'); Cluster = 'norwaywest1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "South Africa North"; Gateways = ("102.133.152.0", "102.133.120.2", "102.133.152.32"); TRs = ('tr1', 'tr2', 'tr4'); Cluster = 'southafricanorth1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "South Africa West"; Gateways = ("102.133.24.0"); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'southafricawest1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "South Central US"; Gateways = ("13.66.62.124", "104.214.16.32", "20.45.121.1", "20.49.88.1"); TRs = ('tr10', 'tr8', 'tr9'); Cluster = 'southcentralus1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "South East Asia"; Gateways = ("104.43.15.0", "40.78.232.3", "13.67.16.193"); TRs = ('tr7', 'tr8', 'tr4'); Cluster = 'southeastasia1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Switzerland North"; Gateways = ("51.107.56.0", "51.107.57.0"); TRs = ('tr1', 'tr2', 'tr54'); Cluster = 'switzerlandnorth1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "Switzerland West"; Gateways = ("51.107.152.0", "51.107.153.0"); TRs = ('tr1', 'tr2', 'tr52'); Cluster = 'switzerlandwest1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "UAE Central"; Gateways = ("20.37.72.64"); TRs = ('tr1', 'tr4'); Cluster = 'uaecentral1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "UAE North"; Gateways = ("65.52.248.0"); TRs = ('tr1', 'tr4', 'tr9'); Cluster = 'uaenorth1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "UK South"; Gateways = ("51.140.184.11", "51.105.64.0", '51.140.144.36', '51.105.72.32'); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'uksouth1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "UK West"; Gateways = ("51.141.8.11", "51.140.208.96", "51.140.208.97"); TRs = ('tr1', 'tr2', 'tr4'); Cluster = 'ukwest1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "West Central US"; Gateways = ("13.78.145.25", "13.78.248.43", '13.71.193.32', '13.71.193.33'); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'westcentralus1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "West Europe"; Gateways = ("40.68.37.158", "104.40.168.105", "52.236.184.163"); TRs = ('tr7', 'tr8', 'tr9'); Cluster = 'westeurope1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "West US"; Gateways = ("104.42.238.205", "13.86.216.196"); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'westus1-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "West US 2"; Gateways = ("13.66.226.202", "40.78.240.8", "40.78.248.10"); TRs = ('tr1', 'tr2', 'tr3'); Cluster = 'westus2-a.worker.database.windows.net'; }
New-Object PSObject -Property @{Region = "US DoD East"; Gateways = ("52.181.160.27"); TRs = ('tr3', 'tr4', 'tr5'); Cluster = 'usdodeast1-a.worker.database.usgovcloudapi.net'; }
New-Object PSObject -Property @{Region = "US DoD Central"; Gateways = ("52.182.88.34"); TRs = ('tr1', 'tr4', 'tr7'); Cluster = 'usdodcentral1-a.worker.database.usgovcloudapi.net'; }
New-Object PSObject -Property @{Region = "US Gov Iowa"; Gateways = ("13.72.189.52"); TRs = ('tr1'); Cluster = 'usgovcentral1-a.worker.database.usgovcloudapi.net'; }
New-Object PSObject -Property @{Region = "US Gov Texas"; Gateways = ("52.238.116.32"); TRs = ('tr1', 'tr2', 'tr29'); Cluster = 'usgovsouthcentral1-a.worker.database.usgovcloudapi.net'; }
New-Object PSObject -Property @{Region = "US Gov Arizona"; Gateways = ("52.244.48.33"); TRs = ('tr1', 'tr4', 'tr13'); Cluster = 'usgovsouthwest1-a.worker.database.usgovcloudapi.net'; }
New-Object PSObject -Property @{Region = "US Gov Virginia"; Gateways = ("13.72.48.140"); TRs = ('tr1', 'tr3', 'tr5'); Cluster = 'usgoveast1-a.worker.database.usgovcloudapi.net'; }
)
$TRPorts = @('11000', '11001', '11003', '11005', '11006')
$summaryLog = New-Object -TypeName "System.Text.StringBuilder"
$summaryRecommendedAction = New-Object -TypeName "System.Text.StringBuilder"
$AnonymousRunId = ([guid]::NewGuid()).Guid
# Error Messages
$DNSResolutionFailed = ' Please make sure the server name FQDN is correct and that your machine can resolve it.
Failure to resolve domain name for your logical server is almost always the result of specifying an invalid/misspelled server name,
or a client-side networking issue that you will need to pursue with your local network administrator.'
$DNSResolutionGotMultipleAddresses = ' While testing DNS resolution from multiples sources (hosts file/cache/your DNS server/external DNS service) we got multiple addresses.
To connect to SQL Database or Azure Synapse, you need to allow network traffic to and from all Gateways for the region.
The Gateway used is not static, configuring a single specific address (like in hosts file) may lead to total lack of connectivity or intermittent connectivity issues (now or in the future).
Having DNS resolution switching between a couple of Gateway addresses is expected.
If you are using Private Link, a mismatch between your DNS server and OpenDNS is expected.
Please review the DNS results.'
$DNSResolutionGotMultipleAddressesMI = ' While testing DNS resolution from multiples sources (hosts file/cache/your DNS server/external DNS service) we got multiple addresses.
SQL Managed Instance IP address may change, see more at https://docs.microsoft.com/en-us/azure/azure-sql/managed-instance/frequently-asked-questions-faq#connectivity
Configuring a specific IP address (like in hosts file) may lead to total lack of connectivity or intermittent connectivity issues (now or in the future).
Please review the DNS results.'
$DNSResolutionFailedSQLMIPublicEndpoint = ' Please make sure the server name FQDN is correct and that your machine can resolve it.
You seem to be trying to connect using Public Endpoint, this error can be caused if the Public Endpoint is Disabled.
See how to enable public endpoint for your managed instance at https://aka.ms/mimanage-publicendpoint
If public endpoint is enabled, failure to resolve domain name for your logical server is almost always the result of specifying an invalid/misspelled server name,
or a client-side networking issue that you will need to pursue with your local network administrator.'
$SQLDB_InvalidGatewayIPAddress = ' In case you are not using Private Endpoint, please make sure the server name FQDN is correct and that your machine can resolve it to a valid gateway IP address (DNS configuration).
In case you are not using Private Link, failure to resolve domain name for your logical server is almost always the result of specifying an invalid/misspelled server name,
or a client-side networking issue that you will need to pursue with your local network administrator.
See the valid gateway addresses at https://docs.microsoft.com/azure/azure-sql/database/connectivity-architecture#gateway-ip-addresses
See more about Private Endpoint at https://docs.microsoft.com/en-us/azure/azure-sql/database/private-endpoint-overview'
$SQLDB_GatewayTestFailed = ' Failure to reach the Gateway is usually a client-side networking issue (like DNS issue or a port being blocked) that you will need to pursue with your local network administrator.
See more about connectivity architecture at https://docs.microsoft.com/azure/azure-sql/database/connectivity-architecture'
$SQLDB_Redirect = " Servers in SQL Database and Azure Synapse support Redirect, Proxy or Default for the server's connection policy setting:
Default: This is the connection policy in effect on all servers after creation unless you explicitly alter the connection policy to either Proxy or Redirect.
The default policy is Redirect for all client connections originating inside of Azure (for example, from an Azure Virtual Machine)
and Proxy for all client connections originating outside (for example, connections from your local workstation).
Redirect (recommended): Clients establish connections directly to the node hosting the database, leading to reduced latency and improved throughput.
For connections to use this mode, clients need to:
- Allow outbound communication from the client to all Azure SQL IP addresses in the region on ports in the range of 11000-11999.
- Allow outbound communication from the client to Azure SQL Database gateway IP addresses on port 1433.
Proxy: In this mode, all connections are proxied via the Azure SQL Database gateways, leading to increased latency and reduced throughput.
For connections to use this mode, clients need to allow outbound communication from the client to Azure SQL Database gateway IP addresses on port 1433.
If you are using Proxy, the Redirect Policy related tests would not be a problem.
If you are using Redirect, failure to reach ports in the range of 11000-11999 is usually a client-side networking issue (like DNS issue or a port being blocked) that you will need to pursue with your local network administrator.
Please check more about connection policies at https://docs.microsoft.com/en-us/azure/azure-sql/database/connectivity-architecture#connection-policy"
$SQLMI_GatewayTestFailed = ' You can connect to SQL Managed Instance via private endpoint if you are connecting from one of the following:
- machine inside the same virtual network
- machine in a peered virtual network
- machine that is network connected by VPN or Azure ExpressRoute
Failure to reach the Gateway is usually a client-side networking issue (like DNS issue or a port being blocked) that you will need to pursue with your local network administrator.
See how to connect your application to Azure SQL Managed Instance at https://docs.microsoft.com/en-us/azure/azure-sql/managed-instance/connect-application-instance'
$SQLMI_PublicEndPoint_GatewayTestFailed = ' This usually indicates a client-side networking issue (like DNS issue or a port being blocked) that you will need to pursue with your local network administrator.
See more about connectivity using Public Endpoint at https://docs.microsoft.com/en-us/azure/azure-sql/managed-instance/public-endpoint-configure'
$AAD_login_windows_net = ' If you are using AAD Password or AAD Integrated Authentication please make sure you fix the connectivity from this machine to login.windows.net:443
This usually indicates a client-side networking issue (like DNS issue or a port being blocked) that you will need to pursue with your local network administrator.'
$AAD_login_microsoftonline_com = ' If you are using AAD Universal with MFA authentication please make sure you fix the connectivity from this machine to login.microsoftonline.com:443
This usually indicates a client-side networking issue (like DNS issue or a port being blocked) that you will need to pursue with your local network administrator.'
$AAD_secure_aadcdn_microsoftonline_p_com = ' If you are using AAD Universal with MFA authentication please make sure you fix the connectivity from this machine to secure.aadcdn.microsoftonline-p.com:443
This usually indicates a client-side networking issue (like DNS issue or a port being blocked) that you will need to pursue with your local network administrator.'
$error18456RecommendedSolution = ' This error indicates that the login request was rejected, the most common reasons are:
- Incorrect or empty password: Please ensure that you have provided the correct password.
- Database does not exist: Please ensure that the connection string has the correct database name.
- Insufficient permissions: The user does not have CONNECT permissions to the database. Please ensure that the user is granted the necessary permissions to login.
- Connections rejected due to DoSGuard protection: DoSGuard actively tracks failed logins from IP addresses. If there are multiple failed logins from a specific IP address within a period of time, the IP address is blocked from accessing any resources in the service for a pre-defined time period even if the password and other permissions are correct.'
$ServerNameNotSpecified = ' The parameter $Server was not specified, please set the parameters on the script, you need to set server name. Database name, user and password are optional but desirable.
You can see more details about how to use this tool at https://github.com/Azure/SQL-Connectivity-Checker'
$followUpMessage = ' If this is a database engine error code you may see more about it at https://docs.microsoft.com/sql/relational-databases/errors-events/database-engine-events-and-errors'
$SQLMI_PrivateEndpoint_Error40532 = ' Error 40532 is usually related to one of the following scenarios:
- The username (login) contains the "@" symbol (e.g., a login of the form "user@mydomain.com").
If the {servername} value shown in the error is "mydomain.com" then you are encountering this scenario.
See how to handle this at https://techcommunity.microsoft.com/t5/azure-database-support-blog/providing-the-server-name-explicitly-in-user-names-for-azure-sql/ba-p/368942
- Using the IP that is resolved from your full server FQDN rather than the FQDN of your server itself. You need to use the FQDN.'
$SQLDB_Error40532 = ' Error 40532 is usually related to one of the following scenarios:
- The username (login) contains the "@" symbol (e.g., a login of the form "user@mydomain.com").
If the {servername} value shown in the error is "mydomain.com" then you are encountering this scenario.
See how to handle this at https://techcommunity.microsoft.com/t5/azure-database-support-blog/providing-the-server-name-explicitly-in-user-names-for-azure-sql/ba-p/368942
- The subnet where you are trying to connect from has Microsoft.Sql service endpoint enabled
Turning on virtual network service endpoints to Microsoft.Sql in the subnet enables the endpoints for Azure SQL Database, Azure Synapse Analytics, Azure Database for PostgreSQL server, Azure Database for MySQL server and Azure Database for MariaDB. Attempts to connect from subnet might fail if virtual network rules are not set.
This issue is usually originated by one of the following:
- Aiming to connect to SQL Database using service endpoints, Microsoft.Sql was enabled in the subnet but the virtual network rule for the originating subnet in the Firewalls and virtual networks settings on the server was not added.
- Aiming to connect to other database service (like Azure Database for MySQL as an example), Azure SQL Database was also impacted.
To fix this issue create a virtual network rule in your server in SQL Database, for the originating subnet in the Firewalls and virtual networks.
See how to at https://docs.microsoft.com/azure/azure-sql/database/vnet-service-endpoint-rule-overview#use-the-portal-to-create-a-virtual-network-rule
You can also consider removing the service endpoint from the subnet, but you will need to take into consideration the impact in all the services mentioned above.'
$CannotDownloadAdvancedScript = ' Advanced connectivity policy tests script could not be downloaded!
Confirm this machine can access https://github.com/Azure/SQL-Connectivity-Checker/
or use a machine with Internet access to see how to run this from machines without Internet. See how at https://github.com/Azure/SQL-Connectivity-Checker/'
# PowerShell Container Image Support Start
if (!$(Get-Command 'Test-NetConnection' -errorAction SilentlyContinue)) {
function Test-NetConnection {
param(
[Parameter(Position = 0, Mandatory = $true)] $HostName,
[Parameter(Mandatory = $true)] $Port
);
process {
$client = [TcpClient]::new()
try {
$client.Connect($HostName, $Port)
$result = @{TcpTestSucceeded = $true; InterfaceAlias = 'Unsupported' }
}
catch {
$result = @{TcpTestSucceeded = $false; InterfaceAlias = 'Unsupported' }
}
$client.Dispose()
return $result
}
}
}
if (!$(Get-Command 'Resolve-DnsName' -errorAction SilentlyContinue)) {
function Resolve-DnsName {
param(
[Parameter(Position = 0)] $Name,
[Parameter()] $Server,
[switch] $CacheOnly,
[switch] $DnsOnly,
[switch] $NoHostsFile
);
process {
try {
Write-Host " Trying to resolve DNS for" $Name
return @{ IPAddress = [System.Net.DNS]::GetHostAddresses($Name).IPAddressToString };
}
catch {
TrackWarningAnonymously ('Error at Resolve-DnsName override: ' + $_.Exception.Message)
}
}
}
}
if (!$(Get-Command 'Get-NetRoute' -errorAction SilentlyContinue)) {
function Get-NetRoute {
param(
[Parameter(Position = 0, Mandatory = $true)] $InterfaceAlias
);
process {
Write-Host 'Unsupported'
}
}
}
if (!$(Get-Command 'netsh' -errorAction SilentlyContinue) -and $CollectNetworkTrace) {
Write-Host "WARNING: Current environment doesn't support network trace capture. This option is now disabled!"
$CollectNetworkTrace = $false
}
# PowerShell Container Image Support End
function PrintDNSResults($dnsResult, [string] $dnsSource, $errorVariable, $Server) {
Try {
$dnsResultIpAddress = $null
if ($errorVariable -and $errorVariable[0].Exception.Message -notmatch 'DNS record does not exist' -and $errorVariable[0].Exception.Message -notmatch 'DNS name does not exist') {
$msg = ' Error getting DNS record in ' + $dnsSource + ' (' + $errorVariable[0].Exception.Message.Replace(" : " + $Server, "") + ')'
Write-Host $msg
[void]$summaryLog.AppendLine($msg)
TrackWarningAnonymously $msg
}
else {
if ($dnsResult -and $dnsResult.IPAddress -and !([string]::IsNullOrEmpty($dnsResult.IPAddress))) {
$dnsResultIpAddress = $dnsResult.IPAddress
$msg = ' Found DNS record in ' + $dnsSource + ' (IP Address:' + $dnsResult.IPAddress + ')'
Write-Host $msg
[void]$summaryLog.AppendLine($msg)
}
else {
Write-Host ' Could not find DNS record in' $dnsSource
}
}
return $dnsResultIpAddress
}
Catch {
$msg = "Error at PrintDNSResults for " + $dnsSource + '(' + $_.Exception.Message + ')'
#Write-Host $msg -Foreground Red
#Write-Host $_.Exception.Message -ForegroundColor Red
TrackWarningAnonymously $msg
}
}
function ValidateDNS([String] $Server) {
Try {
Write-Host 'Validating DNS record for' $Server -ForegroundColor Green
$DNSlist = New-Object Collections.Generic.List[string]
if ($PSVersionTable.PSVersion.Major -le 5 -or $IsWindows) {
Try {
$DNSfromHostsError = $null
$DNSfromHosts = Resolve-DnsName -Name $Server -CacheOnly -ErrorAction SilentlyContinue -ErrorVariable DNSfromHostsError
$address = PrintDNSResults $DNSfromHosts 'hosts file' $DNSfromHostsError $Server
if ($address -and -1 -eq $DNSlist.IndexOf($address)) {
$DNSlist.Add($address);
}
}
Catch {
Write-Host "Error at ValidateDNS from hosts file" -Foreground Red
Write-Host $_.Exception.Message -ForegroundColor Red
TrackWarningAnonymously 'Error at ValidateDNS from hosts file'
}
Try {
$DNSfromCacheError = $null
$DNSfromCache = Resolve-DnsName -Name $Server -NoHostsFile -CacheOnly -ErrorAction SilentlyContinue -ErrorVariable DNSfromCacheError
$address = PrintDNSResults $DNSfromCache 'cache' $DNSfromCacheError $Server
if ($address -and -1 -eq $DNSlist.IndexOf($address)) {
$DNSlist.Add($address);
}
}
Catch {
Write-Host "Error at ValidateDNS from cache" -Foreground Red
Write-Host $_.Exception.Message -ForegroundColor Red
TrackWarningAnonymously 'Error at ValidateDNS from cache'
}
Try {
$DNSfromCustomerServerError = $null
$DNSfromCustomerServer = Resolve-DnsName -Name $Server -DnsOnly -ErrorAction SilentlyContinue -ErrorVariable DNSfromCustomerServerError
$address = PrintDNSResults $DNSfromCustomerServer 'DNS server' $DNSfromCustomerServerError $Server
if ($address -and -1 -eq $DNSlist.IndexOf($address)) {
$DNSlist.Add($address);
}
}
Catch {
Write-Host "Error at ValidateDNS from DNS server" -Foreground Red
Write-Host $_.Exception.Message -ForegroundColor Red
TrackWarningAnonymously 'Error at ValidateDNS from DNS server'
}
Try {
$DNSfromOpenDNSError = $null
$DNSfromOpenDNS = Resolve-DnsName -Name $Server -DnsOnly -Server 208.67.222.222 -ErrorAction SilentlyContinue -ErrorVariable DNSfromOpenDNSError
$address = PrintDNSResults $DNSfromOpenDNS 'Open DNS' $DNSfromOpenDNSError $Server
if ($address -and -1 -eq $DNSlist.IndexOf($address)) {
$DNSlist.Add($address);
}
}
Catch {
Write-Host "Error at ValidateDNS from Open DNS" -Foreground Red
Write-Host $_.Exception.Message -ForegroundColor Red
TrackWarningAnonymously 'Error at ValidateDNS from Open DNS'
}
if ($DNSlist.Count -gt 1) {
$msg = (' WARNING: Distinct DNS records were found! (' + [string]::Join(", ", $DNSlist) + ')');
Write-Host $msg -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine($msg)
TrackWarningAnonymously $msg
if (IsManagedInstance $Server) {
$msg = $DNSResolutionGotMultipleAddressesMI
Write-Host $msg -Foreground Red
[void]$summaryRecommendedAction.AppendLine($msg)
}
else {
$msg = $DNSResolutionGotMultipleAddresses
Write-Host $msg -Foreground Red
[void]$summaryRecommendedAction.AppendLine($msg)
}
}
}
else {
Write-Host ' DNS resolution:' ([System.Net.DNS]::GetHostAddresses($Server).IPAddressToString)
}
}
Catch {
Write-Host "Error at ValidateDNS" -Foreground Red
Write-Host $_.Exception.Message -ForegroundColor Red
}
}
function IsManagedInstance([String] $Server) {
return [bool]((($Server.ToCharArray() | Where-Object { $_ -eq '.' } | Measure-Object).Count) -ge 4)
}
function IsSqlOnDemand([String] $Server) {
return [bool]($Server -match '-ondemand.')
}
function IsManagedInstancePublicEndpoint([String] $Server) {
return [bool]((IsManagedInstance $Server) -and ($Server -match '.public.'))
}
function HasPrivateLink([String] $Server) {
[bool]((((Resolve-DnsName $Server) | Where-Object { $_.Name -Match ".privatelink." } | Measure-Object).Count) -gt 0)
}
function SanitizeString([String] $param) {
return ($param.Replace('\', '_').Replace('/', '_').Replace("[", "").Replace("]", "").Replace('.', '_').Replace(':', '_').Replace(',', '_'))
}
function FilterTranscript() {
Try {
if ($canWriteFiles) {
$lineNumber = (Select-String -Path $file -Pattern '..TranscriptStart..').LineNumber
if ($lineNumber) {
(Get-Content $file | Select-Object -Skip $lineNumber) | Set-Content $file
}
}
}
Catch {
Write-Host $_.Exception.Message -ForegroundColor Red
}
}
function TestConnectionToDatabase($Server, $gatewayPort, $Database, $User, $Password) {
Write-Host
[void]$summaryLog.AppendLine()
Write-Host ([string]::Format("Testing connecting to {0} database (please wait):", $Database)) -ForegroundColor Green
Try {
$masterDbConnection = [System.Data.SqlClient.SQLConnection]::new()
$masterDbConnection.ConnectionString = [string]::Format("Server=tcp:{0},{1};Initial Catalog={2};Persist Security Info=False;User ID='{3}';Password='{4}';MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;Application Name=Azure-SQL-Connectivity-Checker;",
$Server, $gatewayPort, $Database, $User, $Password)
$masterDbConnection.Open()
Write-Host ([string]::Format(" The connection attempt succeeded", $Database))
[void]$summaryLog.AppendLine([string]::Format(" The connection attempt to {0} database succeeded", $Database))
return $true
}
catch [System.Data.SqlClient.SqlException] {
$ex = $_.Exception
Switch ($_.Exception.Number) {
121 {
$msg = ' Connection to database ' + $Database + ' failed due to "The semaphore timeout period has expired" error.'
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine(' "The semaphore timeout period has expired" is a network error, not a SQL timeout.')
[void]$summaryRecommendedAction.AppendLine(' This appears as a SQL error because Windows passes this to the SQL process, so it is often mistaken to be a SQL error, when it is a client operating system level error.')
[void]$summaryRecommendedAction.AppendLine(' This error can occur for a very wide variety of reasons, but are typically due to a network or driver-related issue.')
[void]$summaryRecommendedAction.AppendLine(' We suggest you:')
[void]$summaryRecommendedAction.AppendLine(' - Verify if you are using an updated version of the client driver or tool.')
[void]$summaryRecommendedAction.AppendLine(' - Verify if you can connect using a different client driver or tool.')
if (IsManagedInstance $Server ) {
[void]$summaryRecommendedAction.AppendLine( ' See required versions of drivers and tools at https://docs.microsoft.com/en-us/azure/azure-sql/managed-instance/connect-application-instance#required-versions-of-drivers-and-tools')
}
[void]$summaryRecommendedAction.AppendLine(' - Check with your local network administrator for client-side networking issues.')
TrackWarningAnonymously ('TestConnectionToDatabase|Error121 State' + $ex.State)
}
916 {
$msg = ' Connection to database ' + $Database + ' failed, the login does not have sufficient permissions to connect to the named database.'
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine(' See more details and how to fix this error at https://docs.microsoft.com/sql/relational-databases/errors-events/mssqlserver-916-database-engine-error')
TrackWarningAnonymously ('TestConnectionToDatabase|Error916 State' + $ex.State)
}
10060 {
$msg = ' Connection to database ' + $Database + ' failed (error ' + $ex.Number + ', state ' + $ex.State + '): ' + $ex.Message
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine(' This usually indicates a client-side networking issue (like DNS issue or a port being blocked) that you will need to pursue with your local network administrator.')
TrackWarningAnonymously ('TestConnectionToDatabase|Error10060 State' + $ex.State)
}
18456 {
if ($User -eq 'AzSQLConnCheckerUser') {
if ($Database -eq 'master') {
$msg = [string]::Format(" Dummy login attempt reached '{0}' database, login failed as expected.", $Database)
Write-Host ($msg)
[void]$summaryLog.AppendLine($msg)
}
else {
$msg = [string]::Format(" Dummy login attempt on '{0}' database resulted in login failure.", $Database)
Write-Host ($msg)
[void]$summaryLog.AppendLine($msg)
$msg = ' This was either expected due to dummy credentials being used, or database does not exist, which also results in login failed.'
Write-Host ($msg)
[void]$summaryLog.AppendLine($msg)
}
}
else {
[void]$summaryRecommendedAction.AppendLine()
$msg = [string]::Format(" Login against database {0} failed for user '{1}'", $Database, $User)
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine($msg)
$msg = $error18456RecommendedSolution
Write-Host ($msg) -ForegroundColor Red
[void]$summaryRecommendedAction.AppendLine($msg)
TrackWarningAnonymously 'FailedLogin18456UserCreds'
}
}
40532 {
if (IsManagedInstance $Server ) {
if ($gatewayPort -eq 3342) {
$msg = ' You seem to be trying to connect to MI using Public Endpoint but Public Endpoint may be disabled'
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine($msg)
$msg = ' Learn how to configure public endpoint at https://docs.microsoft.com/en-us/azure/sql-database/sql-database-managed-instance-public-endpoint-configure'
Write-Host ($msg) -ForegroundColor Red
[void]$summaryRecommendedAction.AppendLine($msg)
TrackWarningAnonymously ('SQLMI|PublicEndpoint|Error40532 State' + $ex.State)
}
else {
$msg = ' Connection to database ' + $Database + ' failed (error ' + $ex.Number + ', state ' + $ex.State + '): ' + $ex.Message
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine($SQLMI_PrivateEndpoint_Error40532)
TrackWarningAnonymously ('SQLMI|PrivateEndpoint|Error40532 State' + $ex.State)
}
}
else {
$msg = ' Connection to database ' + $Database + ' failed (error ' + $ex.Number + ', state ' + $ex.State + '): ' + $ex.Message
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine($SQLDB_Error40532)
TrackWarningAnonymously ('SQLDB|Error40532 State' + $ex.State)
}
}
40615 {
$msg = ' Connection to database ' + $Database + ' failed (error ' + $ex.Number + ', state ' + $ex.State + '): ' + $ex.Message
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine(' The client is trying to connect from an IP address that is not authorized to connect to the server. The server firewall has no IP address rule that allows a client to communicate from the given IP address to the database.')
[void]$summaryRecommendedAction.AppendLine(' Add the IP address as an IP rule, see how at https://docs.microsoft.com/en-us/azure/azure-sql/database/firewall-configure')
TrackWarningAnonymously ('TestConnectionToDatabase|Error40615 State' + $ex.State)
}
47073 {
$msg = ' Connection to database ' + $Database + ' was denied since Deny Public Network Access is set to Yes.
When Deny Public Network Access setting is set to Yes, only connections via private endpoints are allowed.
When this setting is set to No (default), clients can connect using either public endpoints (IP-based firewall rules, VNET-based firewall rules) or private endpoints (using Private Link).
See more at https://docs.microsoft.com/azure/azure-sql/database/connectivity-settings#deny-public-network-access'
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
TrackWarningAnonymously ('TestConnectionToDatabase|47073 State' + $ex.State)
}
40914 {
$msg = ' Connection to database ' + $Database + ' failed, client is not allowed to access the server.'
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine(' The client is in a subnet that has virtual network server endpoints. But the server has no virtual network rule that grants to the subnet the right to communicate with the database.')
[void]$summaryRecommendedAction.AppendLine(' On the Firewall pane of the Azure portal, use the virtual network rules control to add a virtual network rule for the subnet.')
[void]$summaryRecommendedAction.AppendLine(' See how at https://docs.microsoft.com/en-us/azure/azure-sql/database/vnet-service-endpoint-rule-overview#use-the-portal-to-create-a-virtual-network-rule')
TrackWarningAnonymously ('TestConnectionToDatabase|Error40914 State' + $ex.State)
}
default {
$msg = ' Connection to database ' + $Database + ' failed (error ' + $ex.Number + ', state ' + $ex.State + '): ' + $ex.Message
Write-Host ($msg) -ForegroundColor Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine($followUpMessage)
TrackWarningAnonymously ('TestConnectionToDatabase|Error:' + $ex.Number + 'State:' + $ex.State)
}
}
return $false
}
Catch {
Write-Host $_.Exception.Message -ForegroundColor Yellow
TrackWarningAnonymously 'TestConnectionToDatabase|Exception'
return $false
}
}
function PrintLocalNetworkConfiguration() {
if (![System.Net.NetworkInformation.NetworkInterface]::GetIsNetworkAvailable()) {
Write-Host "There's no network connection available!" -ForegroundColor Red
throw
}
$computerProperties = [System.Net.NetworkInformation.IPGlobalProperties]::GetIPGlobalProperties()
$networkInterfaces = [System.Net.NetworkInformation.NetworkInterface]::GetAllNetworkInterfaces()
Write-Host 'Interface information for '$computerProperties.HostName'.'$networkInterfaces.DomainName -ForegroundColor Green
foreach ($networkInterface in $networkInterfaces) {
if ($networkInterface.NetworkInterfaceType -eq 'Loopback') {
continue
}
$properties = $networkInterface.GetIPProperties()
Write-Host ' Interface name: ' $networkInterface.Name
Write-Host ' Interface description: ' $networkInterface.Description
Write-Host ' Interface type: ' $networkInterface.NetworkInterfaceType
Write-Host ' Operational status: ' $networkInterface.OperationalStatus
Write-Host ' Unicast address list:'
Write-Host $(' ' + [String]::Join([Environment]::NewLine + ' ', [System.Linq.Enumerable]::Select($properties.UnicastAddresses, [Func[System.Net.NetworkInformation.UnicastIPAddressInformation, IPAddress]] { $args[0].Address })))
Write-Host ' DNS server address list:'
Write-Host $(' ' + [String]::Join([Environment]::NewLine + ' ', $properties.DnsAddresses))
Write-Host
}
}
function RunSqlMIPublicEndpointConnectivityTests($resolvedAddress) {
Try {
$msg = 'Detected as Managed Instance using Public Endpoint'
Write-Host $msg -ForegroundColor Yellow
[void]$summaryLog.AppendLine($msg)
Write-Host 'Public Endpoint connectivity test:' -ForegroundColor Green
$testResult = Test-NetConnection $resolvedAddress -Port 3342 -WarningAction SilentlyContinue
if ($testResult.TcpTestSucceeded) {
Write-Host ' -> TCP test succeed' -ForegroundColor Green
PrintAverageConnectionTime $resolvedAddress 3342
$msg = ' Gateway connectivity to ' + $resolvedAddress + ':3342 succeed'
[void]$summaryLog.AppendLine($msg)
TrackWarningAnonymously 'SQLMI|PublicEndpoint|GatewayTestSucceeded'
RunConnectionToDatabaseTestsAndAdvancedTests $Server '3342' $Database $User $Password
}
else {
Write-Host ' -> TCP test FAILED' -ForegroundColor Red
$msg = ' Gateway connectivity to ' + $resolvedAddress + ':3342 FAILED'
Write-Host $msg -Foreground Red
[void]$summaryLog.AppendLine($msg)
$msg = ' Please make sure you fix the connectivity from this machine to ' + $resolvedAddress + ':3342 (SQL MI Public Endpoint)'
Write-Host $msg -Foreground Red
[void]$summaryRecommendedAction.AppendLine($msg)
$msg = $SQLMI_PublicEndPoint_GatewayTestFailed
Write-Host $msg -Foreground Red
[void]$summaryRecommendedAction.AppendLine($msg)
TrackWarningAnonymously 'SQLMI|PublicEndpoint|GatewayTestFailed'
}
}
Catch {
Write-Host "Error at RunSqlMIPublicEndpointConnectivityTests" -Foreground Red
Write-Host $_.Exception.Message -ForegroundColor Red
TrackWarningAnonymously 'RunSqlMIPublicEndpointConnectivityTests|Exception'
}
}
function RunSqlMIVNetConnectivityTests($resolvedAddress) {
Try {
Write-Host 'Detected as Managed Instance' -ForegroundColor Yellow
Write-Host
Write-Host 'Gateway connectivity tests (please wait):' -ForegroundColor Green
$testResult = Test-NetConnection $resolvedAddress -Port 1433 -WarningAction SilentlyContinue
if ($testResult.TcpTestSucceeded) {
Write-Host ' -> TCP test succeed' -ForegroundColor Green
PrintAverageConnectionTime $resolvedAddress 1433
TrackWarningAnonymously 'SQLMI|PrivateEndpoint|GatewayTestSucceeded'
RunConnectionToDatabaseTestsAndAdvancedTests $Server '1433' $Database $User $Password
return $true
}
else {
Write-Host ' -> TCP test FAILED' -ForegroundColor Red
Write-Host
Write-Host ' Trying to get IP routes for interface:' $testResult.InterfaceAlias
Get-NetRoute -InterfaceAlias $testResult.InterfaceAlias -ErrorAction SilentlyContinue -ErrorVariable ProcessError
If ($ProcessError) {
Write-Host ' Could not to get IP routes for this interface'
}
Write-Host
$msg = ' Gateway connectivity to ' + $resolvedAddress + ':1433 FAILED'
Write-Host $msg -Foreground Red
[void]$summaryLog.AppendLine()
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
$msg = ' Please fix the connectivity from this machine to ' + $resolvedAddress + ':1433'
Write-Host $msg -Foreground Red
[void]$summaryRecommendedAction.AppendLine($msg)
$msg = $SQLMI_GatewayTestFailed
Write-Host $msg -Foreground Red
[void]$summaryRecommendedAction.AppendLine($msg)
TrackWarningAnonymously 'SQLMI|PrivateEndpoint|GatewayTestFailed'
return $false
}
}
Catch {
Write-Host "Error at RunSqlMIVNetConnectivityTests" -Foreground Red
Write-Host $_.Exception.Message -ForegroundColor Red
TrackWarningAnonymously 'RunSqlMIVNetConnectivityTests|Exception'
return $false
}
}
function PrintAverageConnectionTime($addressList, $port) {
Write-Host ' Printing average connection times for 5 connection attempts:'
$stopwatch = [StopWatch]::new()
foreach ($ipAddress in $addressList) {
[double]$sum = 0
[int]$numFailed = 0
[int]$numSuccessful = 0
for ($i = 0; $i -lt 5; $i++) {
$client = [TcpClient]::new()
try {
$stopwatch.Restart()
$client.Connect($ipAddress, $port)
$stopwatch.Stop()
$sum += $stopwatch.ElapsedMilliseconds
$numSuccessful++
}
catch {
$numFailed++
}
$client.Dispose()
}
$avg = 0
if ($numSuccessful -ne 0) {
$avg = $sum / $numSuccessful
}
$ilb = ''
if ((IsManagedInstance $Server) -and !(IsManagedInstancePublicEndpoint $Server) -and ($ipAddress -eq $resolvedAddress)) {
$ilb = ' [ilb]'
}
Write-Host ' IP Address:'$ipAddress' Port:'$port
Write-Host ' Successful connections:'$numSuccessful
Write-Host ' Failed connections:'$numFailed
Write-Host ' Average response time:'$avg' ms '$ilb
}
}
function RunSqlDBConnectivityTests($resolvedAddress) {
if (IsSqlOnDemand $Server) {
Write-Host 'Detected as SQL on-demand endpoint' -ForegroundColor Yellow
TrackWarningAnonymously 'SQL on-demand'
}
else {
Write-Host 'Detected as SQL Database/Azure Synapse' -ForegroundColor Yellow
TrackWarningAnonymously 'SQL DB/DW'
}
$hasPrivateLink = HasPrivateLink $Server
$gateway = $SQLDBGateways | Where-Object { $_.Gateways -eq $resolvedAddress }
if (!$gateway) {
if ($hasPrivateLink) {
Write-Host ' This connection may be using Private Link, skipping Gateway connectivity tests' -ForegroundColor Yellow
TrackWarningAnonymously 'SQLDB|PrivateEndpoint'
}
else {
$msg = ' WARNING: ' + $resolvedAddress + ' is not a valid gateway address'
Write-Host $msg -Foreground Red
[void]$summaryLog.AppendLine()
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
$msg = $SQLDB_InvalidGatewayIPAddress
Write-Host $msg -Foreground Red
[void]$summaryRecommendedAction.AppendLine($msg)
TrackWarningAnonymously 'SQLDB|InvalidGatewayIPAddressWarning'
}
RunConnectionToDatabaseTestsAndAdvancedTests $Server '1433' $Database $User $Password
}
else {
Write-Host ' The server' $Server 'is running on ' -ForegroundColor White -NoNewline
Write-Host $gateway.Region -ForegroundColor Yellow
Write-Host
[void]$summaryLog.AppendLine()
Write-Host 'Gateway connectivity tests (please wait):' -ForegroundColor Green
$hasGatewayTestSuccess = $false
foreach ($gatewayAddress in $gateway.Gateways) {
Write-Host
Write-Host ' Testing (gateway) connectivity to' $gatewayAddress':1433' -ForegroundColor White -NoNewline
$testResult = Test-NetConnection $gatewayAddress -Port 1433 -WarningAction SilentlyContinue
if ($testResult.TcpTestSucceeded) {
$hasGatewayTestSuccess = $true
Write-Host ' -> TCP test succeed' -ForegroundColor Green
TrackWarningAnonymously ('SQLDB|GatewayTestSucceeded|' + $gatewayAddress)
PrintAverageConnectionTime $gatewayAddress 1433
$msg = ' Gateway connectivity to ' + $gatewayAddress + ':1433 succeed'
[void]$summaryLog.AppendLine($msg)
}
else {
Write-Host ' -> TCP test FAILED' -ForegroundColor Red
Write-Host
Write-Host ' IP routes for interface:' $testResult.InterfaceAlias
Get-NetRoute -InterfaceAlias $testResult.InterfaceAlias -ErrorAction SilentlyContinue -ErrorVariable ProcessError
If ($ProcessError) {
Write-Host ' Could not to get IP routes for this interface'
}
Write-Host
if ($PSVersionTable.PSVersion.Major -le 5 -or $IsWindows) {
tracert -h 10 $Server
}
$msg = ' Gateway connectivity to ' + $gatewayAddress + ':1433 FAILED'
Write-Host $msg -Foreground Red
[void]$summaryLog.AppendLine($msg)
[void]$summaryRecommendedAction.AppendLine()
[void]$summaryRecommendedAction.AppendLine($msg)
$msg = ' Please make sure you fix the connectivity from this machine to ' + $gatewayAddress + ':1433 to avoid issues!'
Write-Host $msg -Foreground Red
[void]$summaryRecommendedAction.AppendLine($msg)
$msg = $SQLDB_GatewayTestFailed
Write-Host $msg -Foreground Red
[void]$summaryRecommendedAction.AppendLine($msg)
TrackWarningAnonymously ('SQLDB|GatewayTestFailed|' + $gatewayAddress)
}
}
if ($gateway.TRs -and $gateway.Cluster -and $gateway.Cluster.Length -gt 0 ) {
Write-Host
Write-Host 'Redirect Policy related tests:' -ForegroundColor Green
$redirectSucceeded = 0
$redirectTests = 0
foreach ($tr in $gateway.TRs | Where-Object { $_ -ne '' }) {
$addr = [string]::Format("{0}.{1}", $tr, $gateway.Cluster)
$trDNS = Resolve-DnsName -Name $addr -ErrorAction SilentlyContinue
if ($null -eq $trDNS -or $null -eq $trDNS.IPAddress) {
Write-Host (' ' + $addr + ' DNS name could not be resolved, skipping tests on ' + $tr) -ForegroundColor Yellow
TrackWarningAnonymously ('TR|DNS|' + $addr)
continue
}
foreach ($port in $TRPorts) {
Write-Host ' Tested (redirect) connectivity to' $addr':'$port -ForegroundColor White -NoNewline
$tcpClient = New-Object System.Net.Sockets.TcpClient
$portOpen = $tcpClient.ConnectAsync($addr, $port).Wait(6000)
if ($portOpen) {
$redirectTests += 1
$redirectSucceeded += 1
Write-Host ' -> TCP test succeeded' -ForegroundColor Green
}
else {
$redirectTests += 1
Write-Host ' -> TCP test FAILED' -ForegroundColor Red
}
}
}
if ($redirectTests -gt 0) {
$redirectTestsResultMessage = [System.Text.StringBuilder]::new()
[void]$redirectTestsResultMessage.AppendLine()
$redirectTestsResultMessage.ToString()
[void]$redirectTestsResultMessage.AppendLine(' Tested (redirect) connectivity ' + $redirectTests + ' times and ' + $redirectSucceeded + ' of them succeeded')
[void]$redirectTestsResultMessage.AppendLine(' Please note this was just some tests to check connectivity using the 11000-11999 port range, not your database')
if (IsSqlOnDemand $Server) {
[void]$redirectTestsResultMessage.Append(' Some tests may even fail and not be a problem since ports tested here are static and SQL on-demand is a dynamic serverless environment.')
}
else {
[void]$redirectTestsResultMessage.Append(' Some tests may even fail and not be a problem since ports tested here are static and SQL DB is a dynamic environment.')
}
$msg = $redirectTestsResultMessage.ToString()
Write-Host $msg -Foreground Yellow
[void]$summaryLog.AppendLine($msg)
TrackWarningAnonymously ('SQLDB|Redirect|' + $gateway.Region + '|' + $redirectSucceeded + '/' + $redirectTests)
if ($redirectSucceeded / $redirectTests -ge 0.5 ) {
$msg = ' Based on the result it is likely the Redirect Policy will work from this machine'
Write-Host $msg -Foreground Green
[void]$summaryLog.AppendLine($msg)
}
else {
if ($redirectSucceeded / $redirectTests -eq 0.0 ) {
$msg = ' Based on the result the Redirect Policy will NOT work from this machine'
Write-Host $msg -Foreground Red
[void]$summaryLog.AppendLine($msg)
TrackWarningAnonymously 'SQLDB|Redirect|AllTestsFailed'
}
else {
$msg = ' Based on the result the Redirect Policy MAY NOT work from this machine, this can be expected for connections from outside Azure'
Write-Host $msg -Foreground Red
[void]$summaryLog.AppendLine($msg)
TrackWarningAnonymously ('SQLDB|Redirect|MoreThanHalfFailed|' + $redirectSucceeded + '/' + $redirectTests)
}
[void]$summaryRecommendedAction.AppendLine($msg)
$msg = $SQLDB_Redirect
Write-Host $msg -Foreground Red
[void]$summaryRecommendedAction.AppendLine($msg)
}
}
}
if ($hasGatewayTestSuccess -eq $true) {
RunConnectionToDatabaseTestsAndAdvancedTests $Server '1433' $Database $User $Password
}
}
}
function RunConnectivityPolicyTests($port) {
try {
Write-Host