multiple instances of DNSDist always logs the process name as DNSDist

[ClaudioRifo]

• Program: dnsdist
• Issue type: Bug report

Short description

when running multiple instances of DNSDist it always logs the process name as DNSDist (it does not use the dnsdist@foo or dnsdist-foo like PowerDNS does)

Environment

• Operating system: ubuntu 18.04
• Software version: DNSDist 1.6.0-alpha1
• Software source: PowerDNS repository

Steps to reproduce

1. create multiple instances like stated on the documentation:
   https://dnsdist.org/advanced/multiple-instance.html
2. check syslog for services start/stop, you will see only dnsdist as process name

Expected behaviour

I would expect the same behavior as PowerDNS. See process names x instance (like pdns_server-instance1).

Actual behaviour

you will see only dnsdist as process name

[klaus-nicat]

I patched /lib/systemd/system/dnsdist@.service with:

 RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
 LimitNOFILE=16384
 TasksMax=8192
+SyslogIdentifier=dnsdist_%i

 [Install]
 WantedBy=multi-user.target

[klaus-nicat]

Maybe it would be better to use dash instead of underscore. Dash is also used for PowerDNS.

[Habbie]

I patched /lib/systemd/system/dnsdist@.service with:

Looks like we already have that for auth, but not for rec. I'll tag both rec and dnsdist on this ticket so we can check.

[Habbie]

Note: do not patch files in /lib. Put overrides in /etc instead, so your modifications do not break on upgrades.

[ClaudioRifo]

Ok, complete instructions on workaround (while this gets released): Execute x each service: systemctl edit ***@***.******@***.***> systemctl edit ***@***.******@***.***> systemctl edit ***@***.******@***.***> this will open a text editor where you need to include: [Service] SyslogIdentifier=dnsdist_%i And it will create one override file x service like: ***@***.***/override.conf ***@***.***/override.conf ***@***.***/override.conf Restart each service and now each service should have its own identifier. BONUS: If you also need to separate the logs into different files create a file for rsyslog /etc/rsyslog.d/dnsdist.conf With content: :programname , isequal, "dnsdist_ serv1" /var/log/dnsdist_ serv1.log :programname , isequal, "dnsdist_ serv2" /var/log/dnsdist_ serv2.log :programname , isequal, "dnsdist_ serv3" /var/log/dnsdist_ serv3.log :programname , isequal, "dnsdist" /var/log/dnsdist.log & stop And restart rsyslog. (line 4 in the file is in case you use dnsdist default service and also +3 additional services) From: Peter van Dijk ***@***.***> Sent: Friday, September 10, 2021 5:05 AM To: PowerDNS/pdns ***@***.***> Cc: Claudio P. Rifo Wahl ***@***.***>; Author ***@***.***> Subject: Re: [PowerDNS/pdns] multiple instances of DNSDist always logs the process name as DNSDist (#10651) Note: do not patch files in /lib. Put overrides in /etc instead, so your modifications do not break on upgrades. - You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub<https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FPowerDNS%2Fpdns%2Fissues%2F10651%23issuecomment-916714049&data=04%7C01%7C%7C73f2a834dcb9484c391108d97431a9c8%7C7e8a397d24b846e9b69e718a1d527f50%7C0%7C0%7C637668578972494735%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=dJn%2B1jwBbPC8cLlaLnzn3lj4eX0d8zeUr21fyvh5bkY%3D&reserved=0>, or unsubscribe<https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAFUQY45EEF5WMMYC2GIVUYDUBG3ZVANCNFSM5CKZWXRA&data=04%7C01%7C%7C73f2a834dcb9484c391108d97431a9c8%7C7e8a397d24b846e9b69e718a1d527f50%7C0%7C0%7C637668578972494735%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=1mFkEcuHoJTHcjTDyjRwaATjoUshQyZkWGiWSJEXtLI%3D&reserved=0>. Triage notifications on the go with GitHub Mobile for iOS<https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fapps.apple.com%2Fapp%2Fapple-store%2Fid1477376905%3Fct%3Dnotification-email%26mt%3D8%26pt%3D524675&data=04%7C01%7C%7C73f2a834dcb9484c391108d97431a9c8%7C7e8a397d24b846e9b69e718a1d527f50%7C0%7C0%7C637668578972504723%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=CohJbO6AXmc1vj6ITWl0qUDc9xHzGM6G3UtiyHbmkh0%3D&reserved=0> or Android<https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fplay.google.com%2Fstore%2Fapps%2Fdetails%3Fid%3Dcom.github.android%26referrer%3Dutm_campaign%253Dnotification-email%2526utm_medium%253Demail%2526utm_source%253Dgithub&data=04%7C01%7C%7C73f2a834dcb9484c391108d97431a9c8%7C7e8a397d24b846e9b69e718a1d527f50%7C0%7C0%7C637668578972514726%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=P82mQe0OeUM5FTUII%2Fh%2BB%2BKqMPJ1EtyhLklXQLk6pV0%3D&reserved=0>.