[root@generic-proxy-01 ~]# 
[root@generic-proxy-01 ~]# lsof -i tcp:1080
COMMAND   PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
ssh     18932 root    4u  IPv4  23039      0t0  TCP *:socks (LISTEN)
[root@generic-proxy-01 ~]# kill -9 18932
[root@generic-proxy-01 ~]# lsof -i tcp:1080
[root@generic-proxy-01 ~]# lsof -i tcp:1080
[root@generic-proxy-01 ~]# 
[root@generic-proxy-01 ~]# 
[root@generic-proxy-01 ~]# 
[root@generic-proxy-01 ~]# ssh -NfgD1080 localhost
bind: Address already in use