Language Selection

English French German Italian Portuguese Spanish

Quick Guide to Securing a Lamp Server

Filed under
Howtos

In the last few years on the Internet the price of dedicated servers have went down and more people are beginning to use them for their sites, game servers, or small hosting companies. With this comes as I was talking about in my last article inexperienced admins. Lots of people I spoke too are too intimated by the linux shell and try to administer their server completely from the control panel.
This short guide will show you a few copy and paste walkthroughs you can use to help secure your server, these should work with any control panel, the mod security update script however is only for apache2. Using these tools and using basic security procedures will help you keep your server secure and free of hackers, spammers, and other annoyances.

Using linux as a personal desktop helps a lot as well as it gets you used to using the command line. The other extremely valuable tool is google. I would probably be nowhere without google. You can look stuff up as you go and find about any answer to any question you may have, Plus there is lots of walkthroughs just like this one I am just putting all the basic ones together.

OK this is not a complete guide but those who are less experienced should be able to follow these walkthroughs and make their server more secure then it was before.
First thing, install apf, bfd, and dos deflate. Complete walkthrough HERE
Note: Dos deflate will not work with debian unless you disable ipv6.

Next install modsecurity using the simple guide from eth0.us, guide can be found HERE

After you install mod security make a directory in /etc called modsecurity. Use my update script found HERE (apache2 only)
This will get all the latest rules from gotroot.com when you have them at the bottom of the mod security configuration in httpd.conf put
Include /etc/modsecurity/apache2/rulename.conf
I suggest using them all besides rules.conf as it gives lots of false positives.

Now if you have shell users or are running redhat, fedora, or debian you most likely need to update your kernel. Now this isn't as hard as you would think, with this copy and paste guide I made that is all you have to do is copy and paste, same as these other tutorials.
The guide can be found HERE. I will be making one for debian soon but you just use any basic debian kernel how to and patch the kernel the same way as you do in this one.

Once you have modsecurity installed keep an eye on the audit log to make sure it is not giving any false positives or blocking legitimate web apps. With the ruleset and rules you have included it should not unless someone is using some oddball web app.
None of these will make your server totally secure, it takes basic security practices such as using strong passwords, not using the same password for everything, and keeping up with all the latest exploitrs and hacking methods.

If you ever get hacked don't go ranting about how you are gonna prosecute so and so, go find out how they done it, how they got in, and what you can do to prevent it again. You will most likely never track down the hackers and the FBI most likely will not care so secure your system and make sure it does not happen again. As I have explained before defacers can actually be helpful to admins. That's about it, good luck and stay on your toes.

More in Tux Machines

Getting OpenStack Ready for the Enterprise

OpenStack is gaining popularity as the cloud platform of choice for IT organizations. This was reflected in a 2013 IDG survey that found as much as 64 percent of IT managers including OpenStack in their technology roadmap. In the current fast-paced IT market, the massive scalability and flexible, modular architecture of OpenStack can help give organizations the agility they need. Read more

Open source projects that warrant data center managers' attention

When you're making the case to a data center manager about tech that is worthy of her consideration, make sure these three open source options are on your list. Read more

Open source and Made in Italy: Arduino are circuit boards with a sense of style

One of the more surprising applications has been the natural marriage between the Arduino board and Lego. Once seen only as a child's building block toy, Lego is finding startling utility as an instant mechanical prototype maker for Arduino ideas. Read more

11 Useful Utilities To Supercharge Your Ubuntu Experience

Whether you’re a relative novice or a seasoned pro, we all want to get the most from our operating system. Ubuntu, like most modern OSes, has more to offer than what is presented at first blush. From tweaking and refining the look, behaviour and performance of the Unity desktop to performing system maintenance, there are a huge array of useful utilities and apps that can help tune Ubuntu to meet your needs in no time. Read more