Etherarp

The command known as ss which stands for socket statistics. It is used for listing listening and established connections and to find out which processes and users are associated with them. Finding all outbound connections to a particular port ss -t -o 'dport = :ssh' --resolve | awk '{print $4,$5,%6}' desktop:42444 websrv1:ssh timer:(keepalive,61min,0) desktop:58600 websrv1:ssh timer:(keepalive,36min,0) desktop:56194 virt1:ssh timer:(keepalive,117min,0) Finding all inbound connections to a particular listening port. Remembering that the local side is always on the left, we can see that .6…