Show FTP Users currently logged in

You can add the following directives in your vsftpd.conf

setproctitle_enable=YES
session_support=YES

Then reload the service:

# service vsftpd reload

and now you can see connected users and their IP addresses with process listing:

# ps aux | grep vsftpd | grep -v grep

Thanks but that shows other usres as well, such as root and nobody who are NOT connected with FTP.  I only want the usernames and IP addresses of all FTP users currently logged in to FTP.

who | grep -i ftp

Thanks.

haswandi, your idea returns an empty result even when FTP users are logged in.

pawwa,  this just returns 0:00
ps aux | grep vsftpd | grep -v grep | fmt -u | cut -d " " -f 12 | sed -e "s/\(.*\)\/\(.*\):/\1 \2/" | grep "^[[:digit:]]"

Hmmm, strange, I've tested yesterday those combined commands on my server, and it has successfully shown the users and their IPs, but you are right the commands are wrong,  (because of the fmt -u).

Anyway, I modified the commands, so it should be like this:

# ps aux | grep vsftpd | grep -v grep | tr -s " " | cut -d " " -f 12 | sed -e "s/\(.*\)\/\(.*\):/\1 \2/" | grep "^[[:digit:]]" | grep "[[:alnum:]]$"

I run this as root at it gives me IP USER formatted output.

BTW, haswandi's solution (who | grep -i ftp) is nicer, but I don't know why it won't give you any output (I guess you have setproctitle_enable=YES in your vsftpd.conf?).