rlogin, telnet connections timeout

UNIX Solaris
1

Hi,
I have a Sun Ultra 5 desktop with Solaris 8. When I telnet/rlogin into any other host, the connection closes after few hours of inactivity.
I also have another Windows box which I use rarely. But when I telnet/rlogin into the same hosts using putty, the connection stays for days without any activity.

I think there is some setting in my Solarix desktop which is dropping connections. Can someone help me?

Thanks in adv.
--gsb

2

Any comments?This is very important for me :(--gsb

3

Check your Solaris server in the /etc/default/login file.
Check the entry on TMOUT. Or simply comment out the entry for it not to take effect

4

Thanks for your reply.
The only things in the server's default login file which are uncommented:
PASSREQ=YES
ALTSHELL=YES
SYSLOG=YES

Also, as I mentioned in my first port, when I telnet using putty from any Windows machine or even from any other unix box, the connection stays open for days. Its when I telnet/rlogin from my solaris desktop that the connections timeout. So I think it has to do something with my desktop, rather than the servers.
And yes, this happens for all the servers. I mean that if I have 4 telnet connections opened with 4 different servers, they all timeout after few hours.
I am not able to keep my windows open over the night because of this.

Thanks in adv
--gsb

5

i'm not sure if its on the app level or something deeper. however, you can always change some tcp/ip values:

ndd -set /dev/tcp tcp_ip_abort_cinternval <milliseconds>
ndd -set /dev/tcp tcp_time_wait_interval <milliseconds>

the first is the time out and defaults to 3 minutes and the 2nd is the port reuse wait time.

not sure if any of this will help.

6

So... did the ndd settings worked fine? :wink: