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telnet failure

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Operating Systems AIX telnet failure
# 1  
Old 07-24-2007
telnet failure
My hardware is a JS21 IBM server with AIX 5.3L. I can console into the blade but at times I am able to telnet to a LDAP server on port 389, but then there are times I can not telnet to the port. I can't ping the server when I experience this issues. My application I support goes down in flames and the users complain. I am able at the same time to telnet to the server from a different blade. Could anyone please let me know where to look for errors or troubleshooting steps -Thx Smilie
# 2  
Old 07-24-2007
Have you tried looking at the system log or the log for the network device/switch it is attatched to(in this case the blade center as well)? It sounds like your blade is dropping off the network.

Cheers,

Keith
# 3  
Old 07-24-2007
Also confirm you are using the default ethernet packet type for IPv4 (not using SNAP).
# 4  
Old 08-14-2007
When it does fail, check to see if the port is listening:

netstat -an | grep 389 | grep LISTEN

You should see an entry that says LISTEN. If you don't, check that the process is up and running.
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