topic Re: Telnet Fails in Operating System - Linux

Telnet Fails

Christopher_63 — Wed, 09 Feb 2005 10:08:00 GMT

Dear friends,

I try to telnet mu server Linux redhat As 3 from my Ms WinXp Pc, but i have the following error.
------------------------ -----------------------------------------
# telnet 192.168.1.6
Trying...
telnet: connect: A remote host refused an attempted connect operation.
----------------- ----------------------- -------------------------
Do you have any idea ?

Thank's a lot.

Best regards.

Re: Telnet Fails

NiCK_76 — Wed, 09 Feb 2005 10:24:59 GMT

Hi Christopher ,

Do you ensure telnet service works? I suggest you
1/Check telnet service ,is it enabled?
cat /etc/xinetd.d/telnet ,parameter disable should "= no"
2/Check xinetd service ,is it running?
/etc/init.d/xinetd status
3/Check firewall, is it allow port 21?
You should stop iptables to have a try. Perform command "/etc/init.d/iptables stop".
4/Check singularity from /var/log/messages
5/Check opened port ,perform "netstat -nl |grep 21" ,is it exist?

NiCK

Re: Telnet Fails

Steven E. Protter — Wed, 09 Feb 2005 10:48:41 GMT

telnet is not enabled in a standard linux install. This is because the password authentication travels across the network in clear text.

Yep, anybody on the network can sniff your password.

Consdier using ssh instead of telnet. It is enabled in all current Red Hat Installations.

To enable telnet

cd /etc/xinetd.d

Find the entry that says(is named) telnet

vi it.

change disable=yes to disable=no

save the file

service xinetd restart

SEP

Re: Telnet Fails

Rick Garland — Wed, 09 Feb 2005 13:24:38 GMT

telnet is turned off by default in RH. Use the ssh protocol.

If must use telnet, ensure the package is loaded - do the rpm -qa | grep -i telnet

If loaded you will need to turn on within the xinetd.d and issue the command 'service xinetd restart'

Re: Telnet Fails

Christopher_63 — Fri, 11 Feb 2005 10:03:36 GMT

Dear friends,

When i make "cd /etc/xinetd.d" i found some files, but i don't know wich i must change to start telnet ?
Can you help me ?

Thank's a lot.
Best regards.

Re: Telnet Fails

NiCK_76 — Fri, 11 Feb 2005 10:34:25 GMT

Hi,Christopher

edit file "/etc/xinetd.d/telnet", read my first reply carefully.

NiCK

Re: Telnet Fails

Ross Minkov — Fri, 11 Feb 2005 11:25:55 GMT

Christopher,

I want to second a recommendation made by SEP earlier -- consider using ssh instead of telnet. telnet is not a safe protocol -- password travels in plain text over the network.

Regards,
Ross

Re: Telnet Fails

Christopher_63 — Fri, 11 Feb 2005 11:31:14 GMT

hi,

Please, how can i configure and launch ssh ?

Thank's a lot.
Best regards.

Re: Telnet Fails

Huc_1 — Fri, 11 Feb 2005 12:12:23 GMT

have a llok at the following
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=646778
read the word document attached to the reply of SEP

It all there in better words then I could put it in...

Happy ssh and safe

Jean-Pierre

Re: Telnet Fails

Huc_1 — Fri, 11 Feb 2005 12:32:25 GMT

Sorry wrong cut and past the link with SEP attachement is the following

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=219369

Jean-Pierre

Re: Telnet Fails

Eric van Dijken — Mon, 14 Feb 2005 07:56:16 GMT

Instead of editing /etc/xinetd.d/telnet. You could use the following command:

# chkconfig telnet on

But they are right, ssh is more secure.

Re: Telnet Fails

bong_3 — Wed, 16 Feb 2005 01:12:09 GMT

as root user, you can just run

to enable telnet
#/sbin/chkconfig --level 345 telnet on
for ssh
#/sbin/chkconfig --level 345 sshd on

--###--
Bong

Re: Telnet Fails

Eric van Dijken — Wed, 16 Feb 2005 01:37:16 GMT

That would work for sshd, but not for telnet. As telnet is part of the xinetd configuration. Telnet can only be turned on or off.

The correct plan would be:

#/sbin/chkconfig --level 345 xinetd on
#/sbin/chkconfig telnet on