root(super user) is unable to login by using Telnet
 

Hi every one,
when i am trying to login as a root from telnet or
rlogin .I got the following message.


Trail 1:-

login: root
Password: root12
Login incorrect
But root12 is right password.

Trail 2:-

login: su
Password:root12
Login incorrect

where root12 is right password.


please help me in this regard,


Regards
Ali

telnet and rlogin are not secure. They are disabled for default, specially for root.
I don't remember how to circumvent this but the right way is to use ssh which is pretty the same using telnet.

You can, of course, telnet as a regular user to the remote system and them, becomes root by "/bin/su -".

regards,

You can edit /etc/securetty to uncomment the remote tty(s) to be able to telnet as root, but as marozsas said it's not secure. You can use ssh instead.

Thanking you for giving valuable suggetion.

But
/etc/securetty doesnot conatain any comment lines sir.


In my system /etc/securetty conatains the following:-

console
vc/1
vc/2
vc/3
vc/4
vc/5
vc/6
vc/7
vc/8
vc/9
vc/10
vc/11
tty1
tty2
tty3
tty4
tty5
tty6
tty7
tty8
tty9
tty10
tty11

If you use linux, you can view the configuration, you can edit /etc/xinet.d/telnet,
search like .....=root. change root with +USERID.
I hope can solve your problem

If you insist to use telnet as root then add the following lines to /etc/securetty since they don't exist:Of course there is no need to open all these terminal, one or two should be enough.
But I tell you once more to use ssh which is more secure than telnet because everything you send using ssh is encrypted while using telnet is un-encrypted

I tried Bathory solution .
But it fails.


Please help me in this regard,

Try to be more specific. What is the message you get when trying to telnet as root?
If you can telnet as normal user, then do it and run to see how your distro names the pseudo-ttys. Perhaps it uses names like /dev/ttyp0 etc and not /dev/pts/0 etc, so you have to put that names in /etc/securetty.

Thanking you Bathory sir,
But The following types of files are there in /dev.

tty0..........tty63 and


ttyS0 ..........ttyS11

related to terminals.
Still I am getting error while login as root account.
But for normal user there is no problem.

Regards
Ali

So login as normal user and run: to see in what terminal you get connected. Then use that name (without the /dev/) in /etc/securetty

Thanking you Bathory,
Finally I got it by your help.

Regards,
Ali