telnet problem

[Sunny123_1]

Hi all i am trying telnet to my server but it gets error network time out.But when i telnet this server from second server its all right then .I hav checked all the necessary things. Please help me out.

[Ivan Krastev]

Check firewall resctrictions. Also check /var/adm/inetd.sec file on the server for additional restrictions.

regards,
ivan

[Sunny123_1]

I have check it all but no problem at all .There is no file like /var/adm/inet.sec

[Ganesan R]

Hi,

From where you are not able to telnet? from your PC or from another unix server?

Are you able to ping to the server?

[Sunny123_1]

from server i am able to ping asa well as telnet.But from my PC i.e putty session i am not able to ping and telnet.Please check syslog as attachment.

[Sajjad Sahir]

Dear Sunny

It means the tcp/ip connection to the telnet client has terminated abnormally.
The reason can be there has been a communication failure between the telnetd process and the telnet client process (the peer) running at the other side of the
tcp connection

thanks and regards

Sajjad Sahir

[Ganesan R]

Hi,

>>But from my PC i.e putty session i am not able to ping and telnet<<

You should be able to ping from your PC unless otherwise ICMP is disabled on routers if any.

IS your PC and the server is on the same network?

If it is in different network, have you configured gateway to reach the server?

Do you have given access to that server in firewall if any?

[Sunny123_1]

i have telnet that server many time now suddenly problem occurs

[subodhbagade]

Hi ,

please telnet to require server from another server.

check whether secsh (sshd) and inetd services are running or not, this could be one reason.

Regards,
Subodh

[Mel Burslan]

Sunny,

it is not unusual (although not the right way) that network admins to put a firewall between a desktop network, like the one your PC is connected to and a server network (like the one your servers are connected to, without properly notifying the users.

My advice to you is to talk to the network administrators and ask them if they changed the firewall rules or create a new one by giving them the IP address of your PC and IP address of your server. Most likely cause is the firewalls, which most of the time are outside system administrators' control.

Try it...

[Ganesan R]

Hi,

>>i have telnet that server many time now suddenly problem occurs<<

How do we know what changes have been recently. You need to provide more details. There are tools available like "tracert"(on windows) traceroute(on unix) to trace the network packets so that we can identify upto where we are able to reach.

you could also try to access the server via ssh, rlogin, ftp so that you can easily identify where the issue lyes. If you are not able to access the server via none of the protocal and all the protocals are enabled on the server then it should be a network issue.

[Sunny123_1]

thank u all It is network problem from our side.Thanks a lot

[Sunny123_1]

Thanks a lot

[Ganesan R]

Hi,

Please take a moment to assign points to those who have taken the time to assist you, here's how:

http://forums1.itrc.hp.com/service/forums/bizsupport/helptips.do?#33

Thanks,