On Tue, 2 Mar 1999, Samarth Kumar wrote:
> Hello Everybody,
>
> I am running Slackware, while trying to run netscape from X, I
got a
> warning message that the program is a suid-root program. What exactly
> is
> the meaning of suid??? I know that it has to do something with rights
> of
> users, but I am not sure.
>
If a command has suid permission, it runs as if it had been run by the
owner of the file (generally but not necessaruly root). In the case of
root, that means it can read or write any file or area of memory, and
directly access any hardware device. It is useful for trusted commands
with a specific and limited purpose, but the more general the comand the
more dangerous it is. Give it to an editor, and any user can change any
file. Just like windows, and we don't want that, do we?
> Is there
any command that will tell me what is the version of the > kernel I
> am using,
By default, the slackware tty login greeting is
Welcome to Linux <kernel version>
It gets this with uname -r, and so can you. (man uname).
and also how do I change the message that appears on the
> screen
> if somebody tries to telnet in to the system?
If you mean the login greeting, put what you want in /etc/issue.net.
Slackware builds /etc/issue fresh each boot in /etc/rc.d/rc.S, you might
grep inn /etc/rc.d to see if there are any references to issue.net.
(man telnetd, man issue.net).
Lawson
>< Microsoft free environment
This mail client runs on Wine. Your mileage may vary.
>
> Any help will be greatly appreciated.
>
> Thanks in advance,
>
> Samarth Kumar
>
>
>
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