How to set host name?

[MisterBE2]

Basic Infos

Is there any command which sets ESP hostname?
I mean name which is displayed on router.

Right now it is something like this:

Router panel screen

I would like to change it.

[liquidfalcon]

Yes, if you use the search facility of GitHub to search this repository for hostname, you will find the code and examples on how to set it.

[MisterBE2]

I found this:

wifi_station_set_hostname( "Test" );

But it does not work :/
Can't compile.

[MisterBE2]

After more digging i found it:

WiFi.hostname("Name");

[anitech-embedded-systems]

It worked for me 👍

[rhdw]

Can you inform me where is the right Position of WiFi.hostname("Name"); in sourcecode ?
I use the following libraries and code, but it does not work

#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
...
    WiFi.mode(WIFI_STA);
    WiFi.begin(ssid, passwort);
    if (WiFi.status() == WL_CONNECTED) {
      WiFi.hostname("WebPool");
      ...

[mcmillion]

You need to call WiFi.hostname() before WiFi.begin()

[devyte]

Since we're on this topic, what is the correct way to change the hostname later on? Would the wifi need to be restarted or something?

…

On Jul 22, 2017 9:28 AM, "Matthew McMillion" ***@***.***> wrote: You need to call WiFi.hostname() before WiFi.begin() — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#2826 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AQC6BlUWKPViYWHGw1wCvU9P-cgBb7o2ks5sQfkMgaJpZM4LZ5Iu> .

[kdbqlb]

Doesn t work

[petely]

Thank you.
This works:

Serial.begin(115200);
  delay(10);
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.hostname("relay");
  WiFi.begin(ssid, password);
 
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected");
 
  // Start the server
  server.begin();
  Serial.println("Server started");
 

Serial monitor log:

Connecting to astro-net
..
WiFi connected
Server started
Use this URL to connect: http://192.168.1.54/

**from Linux box on the same subnet:**
corv-root: ping 192.168.1.54
PING 192.168.1.54 (192.168.1.54) 56(84) bytes of data.
64 bytes from 192.168.1.54: icmp_seq=1 ttl=128 time=6.47 ms
64 bytes from 192.168.1.54: icmp_seq=2 ttl=128 time=1.98 ms
64 bytes from 192.168.1.54: icmp_seq=3 ttl=128 time=1.92 ms

**and then ...**
corv-root: ping relay
PING relay (192.168.1.54) 56(84) bytes of data.
64 bytes from relay (192.168.1.54): icmp_seq=1 ttl=128 time=2.66 ms
64 bytes from relay (192.168.1.54): icmp_seq=2 ttl=128 time=2.53 ms
64 bytes from relay (192.168.1.54): icmp_seq=3 ttl=128 time=1.89 ms

[kdbqlb]

And how do you See the Hostname ??? Thanks Klaus-Dieter 🚴🏊🏼⛵️⛷🎾😊

…

Am 12.08.2017 um 19:47 schrieb petely ***@***.***>: Thank you. This works: ` Serial.begin(115200); delay(10); Serial.print("Connecting to "); Serial.println(ssid); WiFi.hostname("relay"); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected"); // Start the server server.begin(); Serial.println("Server started"); ` Serial monitor log: Connecting to astro-net .. WiFi connected Server started Use this URL to connect: http://192.168.1.54/ from Linux box on the same subnet: corv-root: ping 192.168.1.54 PING 192.168.1.54 (192.168.1.54) 56(84) bytes of data. 64 bytes from 192.168.1.54: icmp_seq=1 ttl=128 time=6.47 ms 64 bytes from 192.168.1.54: icmp_seq=2 ttl=128 time=1.98 ms 64 bytes from 192.168.1.54: icmp_seq=3 ttl=128 time=1.92 ms and then ... corv-root: ping relay PING relay (192.168.1.54) 56(84) bytes of data. 64 bytes from relay (192.168.1.54): icmp_seq=1 ttl=128 time=2.66 ms 64 bytes from relay (192.168.1.54): icmp_seq=2 ttl=128 time=2.53 ms 64 bytes from relay (192.168.1.54): icmp_seq=3 ttl=128 time=1.89 ms — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.

[BRMateus2]

You can see in the router or by nslookup . There seems to be no way of pushing in the hostname to the code, other than settings yourself an array of char and WiFi.hostname(array)

By the way, this might help lots of people who needs more detailed WiFi report after connect:

#include <ESP8266WiFi.h>

//Ethernet or WiFi connection settings
const char* WiFi_hostname = "ESP8266-0";
const char* WiFi_SSID = "FORAPSDB-MATEUSMT-DDWRT";
const char* WiFi_password = "";

void setup(){
	const int serial_baud_bit_rate = 2000000; Serial.begin(serial_baud_bit_rate); //Serial Baud Bit Rate
	setup_connect_to_WiFi(); //Call for the WiFi Connection
}

void setup_connect_to_WiFi(){
	unsigned int WiFi_connect_delay_try = 500; //Delay of the retry to connect to WiFi
	WiFi.hostname(WiFi_hostname);
	WiFi.mode(WIFI_STA); //Indicate to act as wifi_client only, defaults to act as both a wifi_client and an access-point.
	WiFi.begin(WiFi_SSID, WiFi_password); //Try to connect now
	Serial.print("Connecting to \"" + String(WiFi_SSID) + "\" with " + String(WiFi_connect_delay_try) + "ms interval with mode WIFI_STA"); Serial.printf("%s", WiFi.mode(WIFI_STA) ? "" : ", mode failed!!");
	while(WiFi.status() != WL_CONNECTED){
		/*Note: if connection is established, and then lost for some reason, ESP will automatically reconnect. This will be done automatically by Wi-Fi library, without any user intervention.*/
		delay(WiFi_connect_delay_try);
		Serial.print(".");
	}
	Serial.print("\nConnected to " + String(WiFi_SSID) + " with IP Address: "); Serial.print(WiFi.localIP()); Serial.print("\n");
}

[devyte]

WiFi.hostname() is currently working in latest git. Closing as resolved.

[lbottero]

/* in some cases, (I had this problem) need to put after WiFi.begin, this MDNS.begin("hostname"), dontt forget to include this #include <ESP8266mDNS.h>
This works:
*/
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
...
WiFi.mode(WIFI_STA);
WiFi.hostname("WebPool");
WiFi.begin(ssid, passwort);
MDNS.begin("WebPool");
if (WiFi.status() == WL_CONNECTED) {

  ...

[brianjmurrell]

  WiFi.hostname("foobar");
  WiFi.begin(ssid, password);

does not seem to be setting the name here. It still uses it's ESP_XXXXXX when requesting a DHCP lease and also uses esp8266-XXXXXX.local in the mDNS name.

I'm not sure I'm using version 2.4.0 of esp8266/Arduino (yet) but not sure how to find that out. I'd also be happy to upgrade to 2.4.0 if I am not, but not sure how to do that either.