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Incoming telnet not working

 
Michele (Mike) Alberton
Regular Advisor

Incoming telnet not working

Hi,

I've seen many threads on telnet not working but I couldn't work this out.

We have an rx4640 (B.11.23 U ia64) but we cannot connect there.

I'm using the MP to get on board, and from within the console I can telnet to the external network.

From outside I can't telnet/rlogin/ftp to my system.

When I try to do that I have on the remote machine:

omp-1 lucent> telnet 10.0.78.2
Trying 10.0.78.2...
Connected to 10.0.78.2.
Escape character is '^]'.

and nothing else, while on the machine showing the issue I can see the connection to port 23 established. The telnetd by the way is not up and running.

dltesm01# netstat -an|grep "\.23"
tcp 0 0 10.0.78.2.23 172.16.7.234.33173 ESTABLISHED
tcp 0 0 *.23 *.* LISTEN
dltesm01#
dltesm01# netstat -an|grep telnet
dltesm01#

Is there anything that I could check ? I already rebooted the system, /etc/rc.log does not show any error.

Thanks !

Mike
3 REPLIES 3
Paul Sperry
Honored Contributor

Re: Incoming telnet not working

Did you check your /var/adm/inetd.sec file?

I should have a line like:

telnet allow some.i.p.address some.other.I.P .....etc
Michele (Mike) Alberton
Regular Advisor

Re: Incoming telnet not working

Hi Paul,

we don't have the sec file, this system is within an isolated network so that we don't have any fancy security configuration.

dltesm01# ls -l /var/adm/inetd.sec
/var/adm/inetd.sec not found

It was working till yesterday, and even if we know that the network is having some issues in the neighborhood, which is being investigated, still the connection to port 23 puzzles me, since the TCP reaches the host but the telnetd is not spawn locally.

Any ideas ?

Thanks,

Mike
Michele (Mike) Alberton
Regular Advisor

Re: Incoming telnet not working

Hi,

it looks a network problem is involving us.

They fixed and now eveything looks better.

Thanks !

Mike