Security Basics mailing list archives

Re: server security


From: Mike Hale <eyeronic.design () gmail com>
Date: Wed, 20 Jun 2012 11:13:09 -0700

Double check that IPTables loads on start.  I made that mistake once.  ;)

Also, follow the NSA Red Hat guide (if that's what you're using).
It's pretty useful.

www.nsa.gov/ia/_files/factsheets/rhel5-pamphlet-i731.pdf

On Wed, Jun 20, 2012 at 10:27 AM, Littlefield, Tyler
<tyler () tysdomain com> wrote:
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.


------------------------------------------------------------------------
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,
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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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09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

------------------------------------------------------------------------
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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