all files under `/var/run/` (a symbolic link to `/run`) must be created from scratch on server reboot. Could you make a test:
1. systemctl disable kamailio 2. reboot 3. ls -ld /var/run/kamailio 4. ls -l /var/run/kamailio 5. systemctl enable --now kamailio 6. ls -ld /var/run/kamailio 7. ls -l /var/run/kamailioAnd paste here output of these commands.
This is without the problematic cfg parameter:
root@kam01:/home/henning# systemctl disable kamailio Synchronizing state of kamailio.service with SysV service script with /lib/systemd/systemd-sysv-install. Executing: /lib/systemd/systemd-sysv-install disable kamailio Removed /etc/systemd/system/multi-user.target.wants/kamailio.service. reboot
root@kam01:/home/henning# ls -ld /var/run/kamailio ls: cannot access '/var/run/kamailio': No such file or directory
root@kam01:/home/henning# ls -l /var/run/kamailio ls: cannot access '/var/run/kamailio': No such file or directory
root@kam01:/home/henning# systemctl enable --now kamailio Synchronizing state of kamailio.service with SysV service script with /lib/systemd/systemd-sysv-install. Executing: /lib/systemd/systemd-sysv-install enable kamailio Created symlink /etc/systemd/system/multi-user.target.wants/kamailio.service → /lib/systemd/system/kamailio.service.
root@kam01:/home/henning# ls -ld /var/run/kamailio drwxr-x--- 2 kamailio kamailio 120 Jul 5 10:46 /var/run/kamailio
root@kam01:/home/henning# ls -l /var/run/kamailio total 4 srw------- 1 kamailio kamailio 0 Jul 5 10:46 kamailio_ctl -rw-r--r-- 1 kamailio kamailio 5 Jul 5 10:46 kamailio.pid prw-rw---- 1 kamailio kamailio 0 Jul 5 10:46 kamailio_rpc.fifo srw-rw---- 1 kamailio kamailio 0 Jul 5 10:46 kamailio_rpc.sock