I have LAN with three ubuntu 12.04 machines. Everyone see only itself and router:
nmap -v -sP 192.168.1.2/24 | grep -v "host down" Nmap scan report for D-link.HomeGateway (192.168.1.1) Host is up (0.0037s latency). Nmap scan report for i159 (192.168.1.2) Host is up (0.00033s latency).
So on... I can't get access to other machines via ssh, IPs of the LAN can't ping each other. What is the cause? How to solve?
EDIT: What I have tried so far:
- nmap checking for IPs visibility.
- Ping IPs from each other, try ssh connection.
- sshd_config checking.
I have asked this question on serverfault, but the question was downvoted as offtopic. So, I'll try my fate here.