Re: How to add date/hour in Kamailio logs?

Hello,

the log prefix will be not used for some error messages, as you correctly noticed.

One easy workaround is to just use a logging daemon like rsyslog and add the timestamp there before you route it to later processing steps.

Cheers,

Henning

--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>


From: Benedito Marques via sr-users <[email protected]>
Sent: Montag, 15. Dezember 2025 22:23
To: Kamailio (SER) - Users Mailing List <[email protected]>
Cc: Benedito Marques <[email protected]>
Subject: [SR-Users] How to add date/hour in Kamailio logs?

It's possible to add date/hour or add more information in Kamailio logs?

I'm using kamailio inside containers. Even have an option in container manager (--timestamps in kubectl/docker for example), it's not possible to get some kamailio date/hour logs when using external logs tools like ELK.

I add this option to get date/hour in xlog:


log_prefix="[$Tf] - "


but some logs (like bellow) generated automatically by Kamailio have no this information:


Listening on
             tcp: 172.20.0.4:5091<http://172.20.0.4:5091> name tcp_socket advertise 200.200.200.200:5091<http://200.200.200.200:5091>
             tls: 172.20.0.4:5063<http://172.20.0.4:5063> name tls_socket advertise 200.200.200.200:5063<http://200.200.200.200:5063>
Aliases:
             tls: 2eab5fb54462:5063
             tcp: 2eab5fb54462:5091
 0(25) WARNING: tls [tls_init.c:807]: tls_h_mod_init_f(): openssl bug #1491 (crash/mem leaks on low memory) workaround enabled (on low memory tls operations will fail preemptively) with free memory thresholds 204800 and 102400 bytes
16(41) ERROR: tls [tls_server.c:1329]: tls_h_read_f(): protocol level error
16(41) ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS accept:error:1408F09C:SSL routines:ssl3_get_record:http request
16(41) ERROR: tls [tls_server.c:1333]: tls_h_read_f(): source IP: 165.232.66.142
16(41) ERROR: tls [tls_server.c:1336]: tls_h_read_f(): destination IP: 172.20.0.4
16(41) ERROR: <core> [core/tcp_read.c:1479]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7fc51458ef30 r: 0x7fc51458f058 (-1)


--

Att,
Benedito Marques

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