I'm able to ping my Ubuntu box via command: (where c2h2ttt is listed in /etc/hosts)
c2h2@c2h2crawler:~/ttt$ ping6 -I eth1 c2h2ttt
PING c2h2ttt(c2h2ttt) from fe80::21b:21ff:fe22:e865 eth1: 56 data bytes
64 bytes from c2h2ttt: icmp_seq=1 ttl=64 time=10.3 ms
64 bytes from c2h2ttt: icmp_seq=2 ttl=64 time=2.06 ms
64 bytes from c2h2ttt: icmp_seq=3 ttl=64 time=1.33 ms
And when I try ssh -6 c2h2ttt
it shows:
c2h2@c2h2crawler:~/ttt$ ssh -6 c2h2ttt
ssh: connect to host c2h2ttt port 22: Invalid argument
What's the correct command?
On the server side /etc/ssh/sshd_config has:
ListenAddress ::
ListenAddress 0.0.0.0
I was able to ssh to c2h2ttt via ipv4 on port 22. and netstat -lnt | grep :22
is
root@c2h2think:~# netstat -lnt | grep :22
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp6 0 0 :::22 :::* LISTEN
ufw is used and its allowing any inbound traffic on port 22
root@c2h2think:~# ufw status
Status: active
To Action From
-- ------ ----
22 ALLOW Anywhere
And the iptables configuration:
root@c2h2think:~# ip6tables -L -v -n
Chain INPUT (policy DROP 55 packets, 10758 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all lo * ::/0 ::/0
Chain FORWARD (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all * lo ::/0 ::/0
netstat -lnt | grep :22
(open listening numeric tcp sockets | containing :22) says.