[root@generic-proxy-01 ~]# netstat -plant|grep 1080
tcp        0      0 0.0.0.0:1080                0.0.0.0:*                   LISTEN      18940/ssh           
[root@generic-proxy-01 ~]# lsof -i tcp:1080
COMMAND   PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
ssh     18940 root    4u  IPv4  23169      0t0  TCP *:socks (LISTEN)
[root@generic-proxy-01 ~]# kill 18940
[root@generic-proxy-01 ~]# 
[root@generic-proxy-01 ~]# 
[root@generic-proxy-01 ~]# netstat -plant|grep 1080
[root@generic-proxy-01 ~]# lsof -i tcp:1080
[root@generic-proxy-01 ~]# 
[root@generic-proxy-01 ~]# 
[root@generic-proxy-01 ~]# ssh -NfgD1080 localhost
bind: Address already in use