ProFTPD issue - fail at LIST

i use plesk 17.0.17 #Update 4 and centOS 7.2.1511.

I cannot connect via ftp

the secure log says:

proftpd: pam_listfile(proftpd:auth): Couldn't open /etc/ftpusers
proftpd[3623]: 0.0.0.0 (xx.xx.xx) - USER xyz: Login successful.
proftpd: pam_unix(proftpd:session): session opened for user xyz by (uid=0)
proftpd: pam_env(proftpd:setcred): Unable to open config file: /etc/security/pam_env.conf: No such file or directory
proftpd: pam_systemd(proftpd:session): Failed to connect to system bus: No such file or directory

Filezilla says:

Status: Resolving address of www.xyz
Status: Connecting to xx.xx.xx
Status: Connection established, waiting for welcome message...
Status: Initializing TLS...
Status: Verifying certificate...
Status: TLS connection established.
Status: Logged in
Status: Retrieving directory listing...
Command:    PWD
Response:   257 "/" is the current directory
Command:    TYPE I
Response:   200 Type set to I
Command:    PASV
Response:   227 Entering Passive Mode (xx,xx,xx).
Command:    MLSD
Error:  Connection timed out after 20 seconds of inactivity
Error:  Failed to retrieve directory listing

I changed the /etc/pam.d/proftpd like in https://kb.plesk.com/en/125519 without success.

"plesk repair ftp" didn't work. What other things should I be looking for.

FTP (port 21) worked fine before. The only change that i did was to the sshd and nothing else.
Users unable to access FTP, keeps failing at "LIST"

Thanks

UPDATE 1: It is very strange but all of a sudden, for no reason, system is working... no idea why. Thanks for you replies!

user3402600

Posted 2017-01-10T19:07:33.947

Reputation: 159

Failure to retrieve a directory listing won't be caused by PAM issues. As @Martin mentioned, it's more likely due to NAT/firewalls. For ProFTPD, the NAT howto might be useful for showing what other configuration you may need.

– Castaglia – 2017-01-11T04:36:57.850

ProFTPD issue - fail at LIST

Answers