M. Fioretti wrote:
still trying to track why ssh doesn't work anymore, see my original posting.
1. firewall, ssh is really open ?
$ nmap -P0 -p 22 server_ip
Starting nmap 3.48 ( http://www.insecure.org/nmap/ ) at 2004-05-18 22:37 CEST
Interesting ports on xp1800 (127.0.0.1):
PORT STATE SERVICE
22/tcp open ssh
Nmap run completed -- 1 IP address (1 host up) scanned in 0.138 seconds
2. tcp_ecn - problem ?
# sysctl -a | grep ecn net.ipv4.tcp_ecn = 0
<snip>
The recommended solutions require to turn off ECN support
sysctl and /etc/sysctl.conf (Add net.ipv4.tcp_ecn = 0 to sysctl.conf) </snip>
3. your router does not close the connection after 1 minute of inactivity or similiar ? ping your_server while you try to ssh in
-- shrek-m
