topic root user can't login via telnet in Operating System - Linux

root user can't login via telnet

Augusto Vinhaes — Wed, 24 Jul 2002 18:25:47 GMT

Hi all !

I'm using Red Hat Linux release 7.1 and I'd like to know what should I do to log in via telnet using the root user. Nowadays I have to log in using a normal user and I have to launch the "su" to become root. Sorry about the simple question.

For hp-ux the /etc/securetty controls this kind of thing.

Regards,
Augusto

Re: root user can't login via telnet

Steven Mertens — Wed, 24 Jul 2002 18:44:54 GMT

hi,

you can find the solution here http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x5849c4c76f92d611abdb0090277a778c,00.html

change /etc/pam.d/login

comment the following line
auth required /lib/security/pam_securetty.so

regards,

Steven

Re: root user can't login via telnet

K.C. Chan — Wed, 24 Jul 2002 20:36:42 GMT

Is telnet necessary, or can you use ssh instead of telnet?

Re: root user can't login via telnet

Trever Furnish — Wed, 24 Jul 2002 22:11:30 GMT

Using telnet to log in and become root means you are sending your root password in the clear over the wire. Consider using SSH instead. There are lots of small free clients for Windows and the SSH server is already installed by default.

Re: root user can't login via telnet

Peter Kloetgen — Thu, 25 Jul 2002 09:32:12 GMT

Hi Augusto,

if you really want to enable root login on Redhat, do the following:

--> rename /etc/securetty to securetty.old

--> vi the following file:

/etc/xinetd.d/telnet

--> change the entry: disable = yes to "no"

--> restart your xinetd

This will do it for you!

Allways stay on the bright side of life!

Peter

Re: root user can't login via telnet

Steven E. Protter — Tue, 20 Aug 2002 17:08:16 GMT

Also note that by default RedHat versions over 7.0 configure to not allow telnet logins at all. You have to make the decision to turn it on.

Re: root user can't login via telnet

Stefan Marquardt_1 — Wed, 21 Aug 2002 05:07:58 GMT

Hi,

renaming securetty helps but results in error messages !
Put rlogin in /etc/securetty and a few Pseudo TTY's which should be allowed for root access.

This is the only correct solution.
Erasing the pam rule helps but isn't nice.