Server not responding

[hinay]

Hi team,
When I add Let's Encrypt to my ProFTPD Server, it can't start anymore. Whenever I try to start, it has this error

Job for proftpd.service failed because a configured resource limit was exceeded. See "systemctl status proftpd.service" and "journalctl -xe" for details.

unable to load 'mod_tls.c'; check to see if '/usr/libexec/proftpd/mod_tls.la' exists

address/port (192.168.0.55:21) already in use by "ProFTPD server"

Please tell me how to fix this

Regards,
H. Smith

[tony_down_under]

1. how did you add lets encrypt? How are you trying to start the server?

2. whats the output as per the help "job for proftpd.service failed because a configured resource limit was exceeded. See "systemctl status proftpd.service" and "journalctl -xe" for details." did you see "systemctl status proftpd.service" ?

3. does /usr/libexec/proftpd/mod_tls.la exist?

4. when you have problems starting, can you run :

Code: Select all

ss -an | grep -E 'ESTAB|LIST'

Does it show you that the ip and port is in use?