From: Tingez Unknown on
Hi all Debian people,

Firstly i am very new to Debian so please excuse me for my lack of
understanding. I have recently got a Dedicated server box for my gaming Clan
and have had Debian 5 64bit installed on it. Now as we will eventually be
using the server for our web site for forums, Emails, sending and receiving
files and all other aspects web site related, fast redirect downloading
system for game server maps, mods etc., ftp, Big brother bot game server
software and game servers of varying games.

I am looking for any suggestions regarding Anti virus and firewall software
that is suitable with your Debian 5 64bit operating system. Wanting to add
as much security as possible to our server to reduce any problems we may
encounter. I would like any suggestions as to the best software that can be
used either paid for or freeware if you would be so kind.



Kind Regards

Martin
From: Aaron Toponce on
On Tue, Aug 03, 2010 at 10:43:05PM +0100, Tingez Unknown wrote:
> I am looking for any suggestions regarding Anti virus and firewall
> software that is suitable with your Debian 5 64bit operating system.
> Wanting to add as much security as possible to our server to reduce any
> problems we may encounter. I would like any suggestions as to the best
> software that can be used either paid for or freeware if you would be so
> kind.

While antivirus software exists for GNU/Linux systems such as Debian,
it's not really needed as most viruses are targeting Windows machines.
If you are concerned about the potential impact, I would recommend
running SELinux coupled with AIDE over any antivirus software. While
their goals are slightly different, the overall idea is the same- lock
down the server, and prevent any unouthorized changes to the filesystem.

When changes occur, report the change, and give an ability to restore
completely from backup. The best antivirus software will do for you is
report the virus, and attempt to remove the virus. Because you can never
be sure what has been changed, it's always best to do a reinstall after
an infection. You would do the same with SELinux and AIDE.

In terms of firewall, the Linux kernel has a builtin firewall through
the Netfilter module and the 'iptables' userspace command. There are
frontends for iptables, if it is too intimidating for you. There's also
TCP wrappers and xinetd for additional firewalling. You could even using
ACLs to allow and deny access to your services.

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. . O . O O O . O . O O . . O
O O O . O . . O O O O . O O O
From: Nuno Magalhães on
Hi,

As Aaron Toponce said, most viruses target Windows, but if you share a
lot of files it would be nice (for your windows users) to scan them.
Try clamav: http://www.clamav.net/
Debian package clamav i tihnk, and it installs freshclam as well for updates.

As for firewall, i'm happy with shorewall, debian package with the same name.

I don't use a mail server (again an antivirus would be nice for email
attachments - plus spamfilter!), as for FTP i prefer using scp over
ssh, and for webserver i use nginx.

I've heard about tripwire, which might be similar to what Aaron mentioned.

HTH,
Nuno

--
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/\  ascii ribbon campaign - against html e-mail


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From: Wolodja Wentland on
On Tue, Aug 03, 2010 at 22:43 +0100, Tingez Unknown wrote:
> Firstly i am very new to Debian so please excuse me for my lack of
> understanding.

Welcome to Debian :)

> I am looking for any suggestions regarding Anti virus and firewall software
> that is suitable with your Debian 5 64bit operating system. Wanting to add as
> much security as possible to our server to reduce any problems we may
> encounter. I would like any suggestions as to the best software that can be
> used either paid for or freeware if you would be so kind.

It has already been noted in this thread that anti-virus software is not
necessarily needed as most viruses target Windows, but you might want to
take a look at software that scans for rootkits [1].

I would also encourage you to familiarise yourself with Debian by
reading the Debian reference [2] (also available as Debian package
"debian-reference-LANG") and the "Securing Debian Manual" [3].

Have Fun

Wolodja

[1] Examples:

chkrootkit - rootkit detector
rkhunter - rootkit, backdoor, sniffer and exploit scanner

[2] http://www.debian.org/doc/manuals/reference/
[3] http://www.debian.org/doc/manuals/securing-debian-howto/

--
.''`. Wolodja Wentland <wentland(a)cl.uni-heidelberg.de>
: :' :
`. `'` 4096R/CAF14EFC
`- 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC
From: Michal on
On 03/08/10 22:43, Tingez Unknown wrote:
> Hi all Debian people,
>
> Firstly i am very new to Debian so please excuse me for my lack of
> understanding. I have recently got a Dedicated server box for my
> gaming Clan and have had Debian 5 64bit installed on it. Now as we
> will eventually be using the server for our web site for forums,
> Emails, sending and receiving files and all other aspects web site
> related, fast redirect downloading system for game server maps, mods
> etc., ftp, Big brother bot game server software and game servers of
> varying games.
>
> I am looking for any suggestions regarding Anti virus and firewall
> software that is suitable with your Debian 5 64bit operating system.
> Wanting to add as much security as possible to our server to reduce
> any problems we may encounter. I would like any suggestions as to the
> best software that can be used either paid for or freeware if you
> would be so kind.
>
>
>
> Kind Regards
>
> Martin
Will your server be able to take that load? I used to run a game hosting
company and made it a rule that game servers hosted game rooms, the web
server dealt with the websites and the teamspeak/vent servers and our
redirect servers where dotted around America and we used a sort of basic
geo-ip type redirection. We had lots of customers so our needs are
different from yours, but I just want you to make sure your 1 server can
take that load. We, and other friends we had the industry, made it a
rule that web/voice never went on game servers. However your milage will
vary of course.

Firewalling can be easy with iptables and so forth, on windows boxes we
used IPSEC and all that stuff is very similar and easy to use/manage.

AV...well, unless you will have people uploading files as and wish they
please you will probably not need this and I've seen many many friends
run this sort of operation with no problems. It all depends on what, if
any, files will be uploaded and by who