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Old 05-06-2005, 02:25 AM   #1
LQ Newbie
Registered: Apr 2005
Location: Yerevan
Distribution: Fedora
Posts: 7

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logging from network to linux machine takes longer time

i have the following problem :
today morning i've noticed that smtn wrong with my linux server (RH8)

when i begin to check mail(pop3)... it takes almost 10 sec to connect to server (int's connected to LAN) and almost the same amount time to login into the server....

then i tryed to login from ssh ... the same problem there... also longer time to login .... and then i've checked and restarted almost everything but... without result....

and one more thing... when i type netstat command ...
it shows 2 line :
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State

after it halts also for about for 10 secs.... and after displays the normal netstat info

i don't know what to check... or what to do
Old 05-06-2005, 03:14 AM   #2
Registered: Jan 2005
Location: Budapest/Hungary
Distribution: knoppix-hdd/debian
Posts: 56

Rep: Reputation: 15
probably your name resolving is set incorrectly, so your linux box cannot resolve and check IP addres - domain name pairs.
try using netstat with the -n option, it disables the ip->domain name nslookup query.
also, check if your DNS settings are correct (/etc/resolv.conf, or via dhcp you receive correct values).

try, then give us feedback.
Old 05-06-2005, 03:51 AM   #3
LQ Newbie
Registered: Apr 2005
Location: Yerevan
Distribution: Fedora
Posts: 7

Original Poster
Rep: Reputation: 0
netstat -n work perfect!

but i do not know how to check DNS configuration....

the file resolv.conf contains following lines:

domain XXXXX.XXX

that's all......

but i must mention that it all begun on this morning and i have tripwire installed so i've looked no changes were made... so yesterday everything was fine....

what i can do next?


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