kazulog@sv1:~$ cat /etc/os-release | head -2
PRETTY_NAME="Ubuntu 26.04 LTS"
NAME="Ubuntu"
kazulog@sv1:~$ grep -n 'imudp\|imtcp' /etc/rsyslog.conf
17:module(load="imudp")
18:input(type="imudp" port="514")
21:module(load="imtcp")
22:input(type="imtcp" port="514")
kazulog@sv1:~$ sudo systemctl restart rsyslog
kazulog@sv1:~$ sudo ss -ulnp 'sport = :514'
State               Recv-Q              Send-Q                           Local Address:Port                             Peer Address:Port              Process
UNCONN              0                   0                                      0.0.0.0:514                                   0.0.0.0:*                  users:(("rsyslogd",pid=2939,fd=5))              
UNCONN              0                   0                                         [::]:514                                      [::]:*                  users:(("rsyslogd",pid=2939,fd=6))              
kazulog@sv1:~$ sudo ss -tlnp 'sport = :514'
State               Recv-Q              Send-Q                           Local Address:Port                             Peer Address:Port              Process
LISTEN              0                   25                                     0.0.0.0:514                                   0.0.0.0:*                  users:(("rsyslogd",pid=2939,fd=7))              
LISTEN              0                   25                                        [::]:514                                      [::]:*                  users:(("rsyslogd",pid=2939,fd=8))