I.T. Security and Linux Administration:

January, 2013

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January 31, 2013  3:48 PM

How Have Security Practices Changed (2009-now)? Part 4

Eric Hansen Eric Hansen Profile: Eric Hansen

Then: #16: Use A Centralized Authentication Service

Now: Same?

A "centralized authentication service" is only useful if it's not a single point of failure. It's an issue I think most people overlook, too. It's nice having LDAP installed and being able to authenticate against...

January 31, 2013  3:40 PM

How Have Security Practices Changed (2009-now)? Part 3

Eric Hansen Eric Hansen Profile: Eric Hansen

Continuations are fun! Part 2 is here: http://itknowledgeexchange.techtarget.com/security-admin/how-have-security-practices-changed-2009-now-part-2/

Then: #11: Configure Iptables and TCPWrappers

Now: Same

Having a firewall properly configured will help both the network and...


January 31, 2013  3:17 PM

How Have Security Practices Changed (2009-now)? Part 2

Eric Hansen Eric Hansen Profile: Eric Hansen

In continuing with my series (started here)...

Then: #6: User Accounts and Strong Password Policy

Now: Same

Do I agree? Definitely. However, the...


January 31, 2013  3:08 PM

How Have Security Practices Changed (2009-now)? Part 1

Eric Hansen Eric Hansen Profile: Eric Hansen

Back in late 2009, an article was published by CyberCiti detailing 20+ tips on how to secure your Linux machine. How have things changes since and now (especially since we're nearing Linux kernel 4.0)?

Then: #1: Encrypt Data...


January 31, 2013  2:34 PM

Manually installing pip

Eric Hansen Eric Hansen Profile: Eric Hansen

While running python setup.py install is simple and easy, it doesn't always work when you want to install some things (such as pip in my case). Especially when you have multiple versions of Python and you're not using virtualenv. To install pip on Python 2.7, this is what will make your life a...


January 31, 2013  2:25 PM

Unable to upgrade Metasploit in Back Track R3?

Eric Hansen Eric Hansen Profile: Eric Hansen

So, I ran into the issue of msfupdate not updating Metasploit on my BackTrack installation. It worked fine on my laptop, but wouldn't on my home server. I didn't even get the typical SSL library issues that occur on initial install. Heck, even the usual svn update didn't work for me. What I...


January 30, 2013  4:48 PM

PostgreSQL – Updating From 8.x to 9.x

Eric Hansen Eric Hansen Profile: Eric Hansen

I installed Back Track recently, which is based on Ubuntu 10.04 (Lucid Lynx). As such, it's not got the most up to date software, even with it operating on it's own repos. So, when I migrated a site over that was used to PostgreSQL 9.1, to the new server running PostgreSQL 8.4, the database...


January 28, 2013  3:03 PM

Getting Into Linux Security (Part 2)

Eric Hansen Eric Hansen Profile: Eric Hansen

Earlier this month I started a series about breaking into the Linux security field (part 1: http://itknowledgeexchange.techtarget.com/security-admin/getting-into-linux-security-part-1/). I'm going to continue this with more tools of the trade to start learning.

Shorewall

I wrote an


January 28, 2013  12:55 PM

Shorewall Firewall

Eric Hansen Eric Hansen Profile: Eric Hansen

Linux is well known for it's networking capabilities. This includes turning an old dusty machine in your house into a home grown firewall or even PBX (a fun weekend project, by the way). But with just about everything else involving Linux, there's a million ways to solve one problem. Such is...


January 16, 2013  11:14 AM

Getting Into Linux Security (Part 1)

Eric Hansen Eric Hansen Profile: Eric Hansen

There's a big increase lately in terms of Linux security and how to get into the field.  Some can get by only knowing basic command line arguments, others require a CISSP to even be considered.  But, experience in the field itself shows more than anything, even if you're sitting at your desk...


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