On Sun, 15 Mar 1998, Saleh A. Al-Abbad wrote:
>
> Hello to all ...
>
> I wonder if this true, I tried to telnet form window95 to my linux
> box using ROOT but failed to login. Same thing happened when I tried
> ftp command. But I was able to telnet and ftp using other IDs. Is
> there anything special with ROOT ?.
Sure is. It is normal practice on Unix and Unix-like operating systems
to not allow normal remote access by root. This is for safety and
security purposes. While it is possible to change the configuration
and allow telnet and ftp by root, if you need to ask the question you
probably don't want to do it. You are much better off to not use root
except when absolutely necessary. If you telnet to your machine and
need to do something that requires root priveleges, use su. Typing
su<cr> will prompt you for the root password. If you give su the single
argument - it will give you the same environment as if you had logged
in as root. To run a single command, use su -c "command" and su will
prompt you for the root password and run that single command (use
su - -c "command" if you want the command run with the full root
environment.) See the man page for su for more details.
-ray
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