vsftpd: 500 OOPS: could not bind listening IPv4 socket

I will use vsftpd as a ftp server. I did all changes on /etc/vsftpd.conf.

These changes are (according to digitalocean):

anonymous_enable=NO
write_enable=YES
local_enable=YES
chroot_local_user=YES

More here:

I'v also created a ssl certificate file. (not necessary but recommended)

Still getting :

500 OOPS: could not bind listening IPv4 socket

Note:

pam_service_name=vsftpd

Netstat:

netstat -pan|grep :21;
tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 30694/vsftpd

2 Answers

Much probably you have /etc/xinetd.d/ftp enabled AND pointing to /usr/sbin/vsftpd and in /etc/vsftpd.conf you have listen=YES.

Simply change it to listen=NO. The listen=YES is for standalone, if you want vsftpd to be always active then you'll have to disabled it in the xinetd config.

you might need a LISTEN line: LISTEN=YES

UPDATE: From your netstat result, it seems that the vsftpd is actually running and it is associated with 0.0.0.0:21. So port (21) on all interfaces. This might be a warning that one of the interfaces is not accepting the bind request. Can you test the ftp server? Do you get a directory listing?

UPDATE 2: Is SELinux activated? Can you please try to login as passive and as active and check if one works?... These things have a history with ftp. Another thing to look out for is whether the home directory of the user account used for login is actually owned by the user. vsftpd is very sensitive when it comes to permissions.