Re: [cobalt-security] how many shells do I need in /etc/shells?

[Ted Behling <TBehling@xxxxxxxxxxxxx>]

At 11:32 AM 8/16/01 -0400, Kevin D wrote:
>Maybe this is too obvious, but /bin/sh is a primary shell for many of the
>shell scripts on the system, and should absolutely not be removed.

I agree that it should not be removed.  In fact, it's just a symlink for bash.

If I understand things correctly, the /etc/shells file defines valid login
shells.  Use of a shebang line (#!/path) in a script does not depend on
/etc/shells.  Keep in mind Perl isn't in your list of allowed shells.

>You're really not going to gain much by removing unnecessary shells. Any
>hacker is probably going to use /bin/sh anyway, because they know how
>necessary it is to your system. What you should try to do is remove
>unnecessary shell accounts.

Good points; I agree.

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