[CentOS] sshd: listen on ip1:port1 and ip2:port2

On 24.01.2012, at 13:23, Alexander Farber wrote:

> I'd like SSHd to keep listening at the_old_ip:22 but also at the_new_ip:443.

# man sshd_config:

     ListenAddress
             Specifies the local addresses sshd should listen on.  The following forms may be used:

                   ListenAddress host|IPv4_addr|IPv6_addr
                   ListenAddress host|IPv4_addr:port
                   ListenAddress [host|IPv6_addr]:port

             If port is not specified, sshd will listen on the address and all prior Port options specified.  The
             default is to listen on all local addresses.  Multiple ListenAddress options are permitted.  Addition-
             ally, any Port options must precede this option for non port qualified addresses.

# grep ListenAddress /etc/sshd/sshd_config:

ListenAddress 127.0.0.1:443
ListenAddress 192.168.42.182:22

# netstat -antup | grep sshd

tcp    0  0 192.168.42.182:22   0.0.0.0:*   LISTEN  31585/sshd          
tcp    0  0 127.0.0.1:443       0.0.0.0:*   LISTEN  31585/sshd          

Best regards, 

  Peter.