Telnet problem ...

[Siddhartha Das]

On same network Alphastation 500 and Alphaserver 4100 is connected.Telnet from any node to Alphaserver 4100 is working fine but telnet from Alphastation 500 is very slow and taking long time to connect.

Please reply with solution.

[Han Pilmeyer]

Could be many things. Need a more detailed problem description, e.g. is it slow before you get the "connected" message or slow before the login prompt appears, etc.

But to take a wild guess, I would check whether the reverse DNS lookups work.

Can the AS 500 connect with the normal speed to other systems/ports?

[Ivan Ferreira]

This can be a name resolution problem, verify your named/hosts configuration.

Also, verify that the network adapters are using the correct configuration according to the switch. Avoid the use of auto negotiation.

If you use v5 (sizer -v) you can see the speed and duplex mode using:

hwmgr get attr -cat network

You can reconfigure using lan_config

You can make it permanent addind the commands to the /etc/inet.local file.

[Ralf Puchner]

or simple use the keywords "slow" and "telnet" within the search function, remembering we have had this question several times...

[Siddhartha Das]

Actually if I try to connect Alpha 500 from any node then it takes long time but if the perticular machine IP is added on /etc/hosts file of Alpha 500 then it connect normally.

What could be the reason.

[Han Pilmeyer]

Exactly what I suggested in my first reply. Check your DNS configuration. In particular make sure that reverse DNS lookup (i.e. translating the address to the name) is for working on the system that you telnet into for the system that is doing the telnet. Most likely the AlphaStation 500 isn't registered properly, which is why it works if you enter its address in the /etc/hosts file.