#uptime 8:51am up 20 days, 9:52, 511 users, load average: 8.04, 6.56, 5.67 17 days isn't much yet but this is 5pm after most people have started leaving. this server runs 550-650 users all day with load of 5-30 being average. this is concurrent telnet sessions. some programers some sales some admins ...etc... We are having a big problem with a kludge to work around it. It seems that when people log out telnetd doesn't let go of the connection. Before out kludge we were able to drive the load to over 700!!! great thing was that the box just chuged allong slow but stable. (the sco box it replaced would die if load ever went over 90). I have found some /proc settings that are suppose to help this. mainly: /proc/sys/net/ipv4/tcp_keepalive_time witch defaults to something like 3 hours. I dropped this to 10 minutes and we still are having the same problem with telnetd not releasing the connection. I have added all these to help performace into /etc/rc.d/rc.local #Network preformace echo 30 > /proc/sys/net/ipv4/tcp_fin_timeout echo 600 > /proc/sys/net/ipv4/tcp_keepalive_time echo 0 > /proc/sys/net/ipv4/tcp_window_scaling echo 0 > /proc/sys/net/ipv4/tcp_sack echo 0 > /proc/sys/net/ipv4/tcp_timestamps Finally we made a simple ps | grep script that would find the stale telnetd procs and kill -9 them. This script has to run ever 7 minutes in order to keep the load down. Is there any other settings I can look for that might help with this problem? PS does anyone else use linux with this many telnet sessions in all atl at the same time? -- -- Bill Warner Direct Alliance Corp. Unix/Linux Admin.