[Chester LUG] Security

[Paul Williams]

Cheers for all these tips, guys.

Have installed firestarter.  Will let you know how it goes...

As for anti virus.  I use AVG with XP, and have it disabled unless needed for a scan.  I was hoping for the same for Linux.  Will Clamav do the job, or is there someting better out there?

> From: r.downing at dl.ac.uk
> To: chester at mailman.lug.org.uk
> Subject: Re: [Chester LUG] Security
> Date: Wed, 21 May 2008 20:32:22 +0100
> 
> On Wednesday 21 May 2008 18:56:49 Michael Crilly wrote:
> > Firewall - again, what distro? Ubuntu has iptables ready to go. To
> > make it easier install firestarter.
> Firestarter is good, or indeed Shorewall. Firestarter is probably more simple 
> to use though. Realistically though, if you are not running any services such 
> as web servers or things of that ilk (things that others would connect _to_ ) 
> then a firewall is not useful. 
> Clam AV is good, but does not operate in the same way as Windows antivirus 
> tools. It's meant to be used periodically, scanning a system for infected 
> files. It (afaik, I may be wrong) does not intercept file accesses like 
> Norton AV and friends. Also, I know it's a bit blase of me, but the virus 
> threat for linux machines is still really only theoretical. Proof of concept 
> viruses have been written but the writers have a hard job on their hands 
> coping with the many different systems out there. A windows machine is a 
> windows machine is a windows machine, so if you can infect one you can infect 
> them all (modulo patches etc).
> The worrisome things are the rootkits but once again the typicl attack vectors 
> are going to be active services your machine offers.
> 
> >
> > I haven't installed antivirus my self.
> Me neither. I found a good use for it though was to scan the Windows install 
> also on the computer when that got knocked out by a virus.
> 
> >
> > If you are on ubuntu, then please! Reconfigure the default sudo
> > configuration file. It's poorly designed and a normal user's password
> > is as good as the root password - not good.
> How would you change things? I'm with you in that it's better to become root 
> with the correct password, but for ease of use it's good to only have to 
> remember your login password plus have the benefit of cached credentials 
> meaning frequent use of admin programs does not require repeated 
> authentication.
> 
> 
> -- 
> Roger Downing
> eScience systems administrator
> STFC
> Daresbury Laboratories
> Keckwick Lane
> Warrington
> WA4 4AD
> 
> Tel: 01925 603937
> Mbl: 07880 736154
> 
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