Linux Server Security Guide: Part 3

Network Security
When it comes to network security, your firewall is one of your most important tools. It is generally a good idea to have multiple lines of defense, such as a router-level firewall and also a server-level firewall that is software-based. Usually, you can block most ports with your firewall, and only allow […]

Back to the Basics #6: Network Security

In order for a network to be secure, you need to have some type of firewall in place. Firewalls typically protect your server from a wide variety of network attacks, all of which focus on weaknesses or holes in your network. For example, an cyber-criminal may scan your server for an open, unused port and […]

Back to the Basics #2: Networking

In the second post of our “Back to Basics” series, we will take a look at server networking. Generally speaking, as a system administrator, you will not have to worry about the actual networking infrastructure. If you have an in-house server, your company will likely hire someone to establish connectivity, and if you are renting […]

The Layers of Server Security

Security is critical for any server that will connect to the Internet.  Once your server is out there, you will get attackers trying to compromise its integrity.  The question is not whether or not you will be attack but whether or not you were prepared to defend against it.
The best way to prevent attacks from […]