Hi,
We are using Serv-U MFT 15.1.1.108 running on Red Hat 6.6.
We have created a domain and added listener for IPv4 on port 22, but it shows the little warning icon and server log states that port is already in use:
[01] Wed 04Feb15 15:01:55 - SFTP (SSH) SERVER IS NOT LISTENING ON IP 0.0.0.0 (127.0.0.1, 10.50.85.72): Port number 22 is already in use
We tried killing the SSH daemon on the OS but it does not help. netstat shows no port bound on the system.
Then we tried adding same port 22 listener for IPv6 and it successfully binds to port 22 (but same does not work for IPv4).
Also tried setting up trial version on CentOS virtual image and same problem occurs.
It is a licensed version (therefore should not be an issue of limited functionality).