Messages in this thread | | | Date | Tue, 24 Apr 2001 22:26:05 -0700 | From | Ben Ford <> | Subject | Re: [OFFTOPIC] Re: [PATCH] Single user linux |
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Tomas Telensky wrote:
<snip>
>But, what I should say to the network security, is that AFAIK in the most >of linux distributions the standard daemons (httpd, sendmail) are run as >root! Having multi-user system or not! Why? For only listening to a port ><1024? Is there any elegant solution? >
Yes, most daemons have the ability to switch user ID once they have bound tho the port. Additionally, support is starting to show up for capabilities. I know that ProFTPD has support. Now, assuming it is running on a newer kernel, it never needs to be root, because it has been granted the capability to open a low port. Even if it is cracked, it cannot do other things like . . . insert a kernel module, . . . overwrite /etc/passwd . . . . . etc
-b
-- Three things are certain: Death, taxes, and lost data Guess which has occurred. - - - - - - - - - - - - - - - - - - - - Patched Micro$oft servers are secure today . . . but tomorrow is another story!
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