full-disclosure - Security Updates Without Rebooting

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Message-ID: <200511080148.jA81mTAK014529@turing-police.cc.vt.edu>
Date: Tue Nov  8 01:48:40 2005
From: Valdis.Kletnieks at vt.edu (Valdis.Kletnieks@...edu)
Subject: Security Updates Without Rebooting 

On Tue, 08 Nov 2005 09:03:32 +1000, Stuart Low said:

> Well, if you have a customised kernel you'll probably find that your
> need to reboot with a new kernel becomes fairly low (Kernel level
> exploits are fairly rare, especially remote ones).
> 
> If you've upgraded services probably the easiest way to ensure they're
> loaded with the latest version would be to drop the system to single
> user mode then bring it back up to multiuser mode (ala, init 2, init 3).

Or, if you're able to identify "I only applied an Apache patch", you may very
well be able to only restart that one service.  For RedHat/Fedora systems,
you'd do this with 'service httpd restart' (or replace httpd with the name
of the /etc/init.d script that starts/stops the service in question). For
other systems, you should be able to find a similar "stop then restart" for
the specific daemon in question.
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