server security

["Littlefield, Tyler" <tyler () tysdomain com>]

Hello:
I have a couple questions. First, I'll explain what I did:
I set up iptables and removed all unwanted services. Iptables blocks 
everything, then only opens what it wants. I also use the addrtype 
module to limit broadcast and unspec addresses, etc. I also do some 
malformed packet work where I just drop everything that looks malformed 
(mainly by the flags).
2) I secured ssh: blocked root logins, set it up so only users in the 
sshusers group can connect, and set it only to allow ppk.
3) I installed aid.
4) disabled malformed packets and forwarding/etc in sysctl.
This is a basic web server that runs email, web and a couple other 
things. It's only running on a linode512, so I don't have the ability to 
set up a ton of stuff; I also think that would make things more of a 
mess. What else would be recommended?
Also, I'm looking to add something to the web server; sometimes I notice 
that there are a lot of requests from people scanning for common urls 
like wordpress/phpbb3/etc, what kind of preventative measures exist for 
this?


--
Take care,
Ty
http://tds-solutions.net
The aspen project: a barebones light-weight mud engine:
http://code.google.com/p/aspenmud
He that will not reason is a bigot; he that cannot reason is a fool; he that dares not reason is a slave.


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Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
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