How to enable 'rsh' for user=root ?

[Anne Wilson]

On Saturday 19 May 2007, Banibrata Dutta wrote:
> Hi,
>
> I've tried several recommendations to enable 'rsh' for the user
> 'root'. I know about the pitfalls and dangers or doing same, but I
> must have this because of particular need for the software suites I am
> running.
> I am able to run 'rsh' just fine for all other users. It's just for
> 'root' that I am facing problems.
>
> I've attempted by adding 'rsh', 'rlogin', 'rexec' in /etc/securetty
> file, i.e. first three lines. Didn't help.
> I've attempted by adding the 'server_options = o' & 'server_options =
> -o' in the /etc/xinitd.d/rsh file. Didn't help.
>
> On running the following,
>  # rsh <myhostname> pwd
>
> I get:
>  Trying krb4 rsh...
>  krb_sendauth failed: You have no tickets cached
>  trying normal rsh (/usr/bin/rsh)
>  Permission denied.
>
> Also, if someone is aware of how to disable the feature of rsh to
> attempt connection using Kerberos ?
>
I'm not a coder, so perhaps I'm misunderstanding you, but isn't the usual 
recommendation for security that you should ssh log in as user, then su to 
root?

Anne
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