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RE: Permit root login for telnet..



I guess I'd reference dsniff right about now.  Physical access makes it
easier, but it is not required.

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http://www.monkey.org/~dugsong/dsniff/faq.html#What%20is%20dsniff
1.1. What is dsniff?

dsniff is a collection of tools for network auditing and penetration
testing. dsniff, filesnarf, mailsnarf, msgsnarf, urlsnarf, and webspy
passively monitor a network for interesting data (passwords, e-mail, files,
etc.). arpspoof, dnsspoof, and macof facilitate the interception of network
traffic normally unavailable to an attacker (e.g, due to layer-2 switching).
sshmitm and webmitm implement active monkey-in-the-middle attacks against
redirected SSH and HTTPS sessions by exploiting weak bindings in ad-hoc PKI.

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Besides, why use telnet when you can use the other features of ssh,
scp,sftp, x11fowarding, etc? after a while, ssh just seems to be more useful
than telnet for interactive access to a system anyhow.

Actually, I doubt many recommend the ability to ssh directly either. I know
I do not recommend setting systems up this way.  Always come in as a
non-privileged user and then "su".

wilson

-----Original Message-----
From: redhat-list-bounces redhat com [mailto:redhat-list-bounces redhat com]
On Behalf Of Shekhar Dhotre
Sent: Friday, August 25, 2006 10:12 AM
To: Bliss, Aaron; General Red Hat Linux discussion list
Subject: RE: Permit root login for telnet..

OK , no one has access to network room here than Coms guys . Even I
cannot go in as I am in Unix/Storages group. Our comm. guys are not
interested in checking our passwords.

Also they have access to most of the prod switches, so they are trusted
by the business. Again not a risk .

-----Original Message-----
From: Bliss, Aaron [mailto:ABliss preferredcare org] 
Sent: Friday, August 25, 2006 9:44 AM
To: Shekhar Dhotre; General Red Hat Linux discussion list
Subject: RE: Permit root login for telnet..

Sure, just turn on ethereal, plug into the span port on the switch.
Very straight forward; there are even software based packet sniffers
than can sniff past switches.

Aaron 

-----Original Message-----
From: Shekhar Dhotre [mailto:sdhotre Cedardoc com] 
Sent: Friday, August 25, 2006 9:25 AM
To: Bliss, Aaron; General Red Hat Linux discussion list
Subject: RE: Permit root login for telnet..

Again that's all good . But, can you tell me how to see password of
other sysadmin if he is accessing system via telnet?

-----Original Message-----
From: Bliss, Aaron [mailto:ABliss preferredcare org] 
Sent: Friday, August 25, 2006 9:22 AM
To: Bliss, Aaron; Shekhar Dhotre; General Red Hat Linux discussion list
Subject: RE: Permit root login for telnet..

Telnet is also vulnerable to man in the middle attacks and ssh offers
post authentication; telnet does not.

Aaron 

-----Original Message-----
From: redhat-list-bounces redhat com
[mailto:redhat-list-bounces redhat com] On Behalf Of Bliss, Aaron
Sent: Friday, August 25, 2006 9:13 AM
To: Shekhar Dhotre; General Red Hat Linux discussion list
Subject: RE: Permit root login for telnet..

Telent is a clear text protocol; ssh isn't. 

-----Original Message-----
From: redhat-list-bounces redhat com
[mailto:redhat-list-bounces redhat com] On Behalf Of Shekhar Dhotre
Sent: Friday, August 25, 2006 9:11 AM
To: General Red Hat Linux discussion list
Subject: RE: Permit root login for telnet..

I have used telnet before ssh came in to the market . Do you know how to
hack telnet ? or break a root password without having physical access to
the system ? most likely the answer will be - NO .. so what's the big
deal in ssh vs. telnet ?

-----Original Message-----
From: redhat-list-bounces redhat com
[mailto:redhat-list-bounces redhat com] On Behalf Of Greg Golin
Sent: Friday, August 25, 2006 2:12 AM
To: General Red Hat Linux discussion list
Subject: Re: Permit root login for telnet..

Dear Arun,

You do NOT want to enable root login via telnet - trust me on this
one. Please tell the list what you are trying to accomplish - 99.9%
chance is that whatever you are trying to do can, and should be done
via ssh.

Kind Regards,
Gregory Golin
Systems Admin

On 8/24/06, Arun Williams <perks_williams yahoo co in> wrote:
> How can i enable root login for telnet....
>
>   I tried editing /etc/pam.d/login .... but no use
>
>
> ____________________________
> Regards
> A.Williams
> IN THIS WORLD FULL OF DREAMS AND IMAGINATION, LOOK FOR
POSSIBILITIES...
>
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>
>
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