AIX 4 and telnet


 
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Operating Systems AIX AIX 4 and telnet
# 1  
Old 07-09-2009
AIX 4 and telnet

I have a very old IBM server running AIX 4 and it runs our old inventory management software. The system was working fine until we had a recent power outage. When the machine came back on, everything seems to work fine, except telnet. The machine pings fine, but telnet says connection is denied. We normally run a connection script through a program called Procomm Plus. I am not familiar with Unix very much, but I am willing to learn or try anything to fix the problem. The machine does have a console I can work from. The machine does have a static IP address BTW.

Steven
# 2  
Old 07-09-2009
please post the actual error message.
# 3  
Old 07-09-2009
The message from telnet says "cannot open connection to host on port 23: connection failed".

Procomm Plus says "winsock error: connection failed"

Steven
# 4  
Old 07-09-2009
This is just a guess, but it sounds like there is no telnet daemon running to answer your connection request. Try using smitty menu interface to find where you enable or disable telnet. I don't know the exact path through the menus to get there unfortunately. Maybe google "smitty enable telnet" or something similar and hopefully you can find step by step instructions.

I know lots of OSes will have telnet disabled by default since it is such a big security risk, and you have to enable it if you want telnet to work. I'm not sure if that is the case for AIX 4, but could be.
# 5  
Old 07-13-2009
According to /etc/inetd.conf, telnet is enabled on port 23.
According to /etc/services, telnet is enabled on port 23.
According to lssrc -t telnet, telnet is active.
I tried changing tcp6 to just tcp in inetd.conf with no difference.
I have also tried "refresh -s inetd" with no improvement.


I still cannot connect to telnet. Same error message as listed above.

Help!
Help!
Help!

Steven
# 6  
Old 07-14-2009
Did you ensure network connectivity was restored after the power outage? Did you try to ping from one server to the other?
# 7  
Old 07-14-2009
Maybe inetd isn't running. What does 'lssrc -g tcpip' show you?
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