On Tue, May 18, 2004 22:53:16 PM +0200, shrek-m@xxxxxx (shrek-m@xxxxxx) wrote: > M. Fioretti wrote: > > >still trying to track why ssh doesn't work anymore, see my original > >posting. > > > > 1. > firewall, > ssh is really open ? > Looks like it: nmap -P0 -p 22 that.ip Starting nmap V. 3.00 ( www.insecure.org/nmap/ ) Interesting ports on (its.ip): Port State Service 22/tcp open ssh Nmap run completed -- 1 IP address (1 host up) scanned in 1 second > 2. > tcp_ecn - problem ? > > # sysctl -a | grep ecn > net.ipv4.tcp_ecn = 0 > Same result here > The recommended solutions require to turn off ECN support > > sysctl and /etc/sysctl.conf > (Add net.ipv4.tcp_ecn = 0 to sysctl.conf) This is not present in my /etc/sysctl.conf file. Do I only have to add it to the end? And does it require reboot (I have other stuff running here now)? > 3. > your router does not close the connection after 1 minute of inactivity or > similiar ? > ping your_server while you try to ssh in No difference. Still freezes at the same point, with the ping happily going with times between 260 and 120 milliseconds. Ciao, Marco F. -- Marco Fioretti m.fioretti, at the server inwind.it Red Hat for low memory http://www.rule-project.org/en/ A good man is intelligent, and a bad man is also an idiot. Moral and intellectual characteristics go together - Jorge Luis Borges