Telnet problems

OK I have the two linux computers networked to some
extent.

When I telnet from one computer to the other I get
the log in screen but I cant login. Telnet insists my
password is no good. What is going on here?

On Wed, 05 Nov 2003 21:23:05 GMT, tom <(E-Mail Removed)> wrote:
>OK I have the two linux computers networked to some
>extent.
>
>When I telnet from one computer to the other I get
>the log in screen but I cant login. Telnet insists my
>password is no good. What is going on here?

I don't think that you mentioned what distro you are running, but
possibly, xinetd is configured to only allow telnet connections from
localhost. This can result in password error messages, even if the
password is correct. Look in the directory: /etc/xinetd.d and you will
see a file called "telnetd" (or something similar). The format is pretty
obvious. You will have to reload xinetd after making the changes.

In article <ZSdqb.13187$(E-Mail Removed) m>, tom wrote:

> When I telnet from one computer to the other I get
> the log in screen but I cant login. Telnet insists my
> password is no good. What is going on here?

Are you trying to log in as root? Most distros won't allow root to log in
via telnet. Somewhere there's a list of "secure" ttys that determine from
where root can log in, and usually only local VCs are listed. If that's the
issue, then just log in as a normal user, then "su".

--
Grant Edwards grante Yow! Where's th' DAFFY
at DUCK EXHIBIT??
visi.com

On Wed, 05 Nov 2003 21:23:05 GMT, tom wrote:
> OK I have the two linux computers networked to some
> extent.
>
> When I telnet from one computer to the other I get
> the log in screen but I cant login. Telnet insists my
> password is no good. What is going on here?


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"Joe Dunning" <(E-Mail Removed)> wrote in message
news4eqb.113912$Fm2.101229@attbi_s04

> I don't think that you mentioned what distro you are running, but
> possibly, xinetd is configured to only allow telnet connections from
> localhost. This can result in password error messages, even if the
> password is correct.

If they are getting a login and password prompt, they are already connected.


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Are you connect by 'root'?
See /etc/pam

tom wrote:

> OK I have the two linux computers networked to some
> extent.
>
> When I telnet from one computer to the other I get
> the log in screen but I cant login. Telnet insists my
> password is no good. What is going on here?

--
Dmitry Frantskevich
F.D.V.

On Wed, 05 Nov 2003 21:23:05 GMT, tom
<(E-Mail Removed)> wrote:
> OK I have the two linux computers networked to some
> extent.
>
> When I telnet from one computer to the other I get
> the log in screen but I cant login. Telnet insists my
> password is no good. What is going on here?
>
If you are trying to login as root, perhaps that is not allowed by
/etc/securetty.


--
You can go anywhere you want if you look serious and carry a clipboard.

"Grant Edwards" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> In article <ZSdqb.13187$(E-Mail Removed) m>, tom
wrote:
>
> > When I telnet from one computer to the other I get
> > the log in screen but I cant login. Telnet insists my
> > password is no good. What is going on here?
>
> Are you trying to log in as root? Most distros won't allow root to log in
> via telnet. Somewhere there's a list of "secure" ttys that determine from
> where root can log in, and usually only local VCs are listed. If that's
the
> issue, then just log in as a normal user, then "su".
>
> --
> Grant Edwards grante Yow! Where's th' DAFFY
> at DUCK EXHIBIT??
> visi.com

Thanks that was the problem. But what is the purpose
behind not allowing one to login as root via telnet?

In article <jFxqb.13618$(E-Mail Removed) m>, tom wrote:

>> > When I telnet from one computer to the other I get
>> > the log in screen but I cant login. Telnet insists my
>> > password is no good. What is going on here?
>>
>> Are you trying to log in as root? Most distros won't allow root to log in
>> via telnet. Somewhere there's a list of "secure" ttys that determine from
>> where root can log in, and usually only local VCs are listed. If that's
>> the issue, then just log in as a normal user, then "su".

> Thanks that was the problem. But what is the purpose
> behind not allowing one to login as root via telnet?

Security. If root is only allowed to log in locally, then somebody has to
gain physical access to do nasty things. Unless the also have a normal
username and password -- in which case it's sort of moot (though it might be
easier to trace them later if you require a normal login and an su).

These days, if you're concerned about security, you should probably be using
ssh anyways.

--
Grant Edwards grante Yow! Where's th' DAFFY
at DUCK EXHIBIT??
visi.com