Disable telnet command from Linux client end !
 

Dear Friends ,

From Linux client end I can easily telnet to a remote Linux server easily , Like :


[root@apps1 ~]# telnet 192.168.1.14
Trying 192.168.1.14...
Connected to 192.168.1.14 (192.168.1.14).
Escape character is '^]'.

catalog.aibl.com (Linux release 2.6.18-8.el5 #1 SMP Tue Jun 5 23:25:19 EDT 2007) (1)

login:


But I want to disable the "telnet" command from the client end , so that I cannot telnet to a remote linux server from the Linux client end .

Waiting for kind reply ... ..

Just remove the telnet client SW

Thx for kind reply ..

Would u plz tell me how to remove the telnet client software ...., I remove the telnet package from the client end , but still it works ..

See the below output plz :

>[root@apps2 ~]# rpm -q telnet
telnet-0.17-31.EL4.5
[root@apps2 ~]# rpm -e --nodeps telnet
[root@apps2 ~]# rpm -q telnet
package telnet is not installed
[root@apps2 ~]# telnet 192.168.1.14
Trying 192.168.1.14...
Connected to 192.168.1.14 (192.168.1.14).
Escape character is '^]'.

test.com (Linux release 2.6.18-8.el5 #1 SMP Tue Jun 5 23:25:19 EDT 2007) (1)

login:

Hello,

Well you could try a command like:
to check if another package provides telnet binary.
Also be aware that some tools like netcat easily allows you to connect to a telnet server.

Kind regards,

Oliv'

Why do you want to do that :confused:

Wouldn't it be the better approach to remove telnet from the server, since it is deprecated and insecure?

That would be my preference; I was giving the OP the benefit of the doubt there... should have asked anyway .

A related article of why (& how) not to use rsh/telnet etc http://www.informit.com/articles/art...p=169465&rll=1

It's why I asked. Still waiting for the reply ;)