How to Setup Remote MySQL Access

Under normal circumstances, your MySQL server may only allow applications to connect to it locally, meaning both are running on the same server. If, however, you run MySQL on a separate machine, you will need to configure it to permit remote connections.
(Note: Replace terms in italics with the correct information from your own server)
Step […]

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 […]

How to Disable a Firewall on RHEL/CentOS

It is generally not a good idea to disable the firewall on your dedicated server, but there are instances when it might be necessary. For example, if you need to run some network tests or perform some type of maintenance, you may need to have your firewall disabled. Most Linux distributions come with the standard […]

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 […]

Dedicated Server Terminology: Part 3

This is a continuation of Dedicated Server Terminology parts 1 and 2.
11. Cache – Caching gives your server a distinct advantage by keeping the most frequently-used data in memory or easily accessible on the disk. ┬áJust as an operating system might cache important application data, you can configure your web server to cache […]

Protect Your Server with APF Firewall

Protect Your Server with APF Firewall
There are many firewall solutions out there, and I do not pretend to be an expert on security. Nevertheless, I can testify from experience that some solutions are easier, more secure, and more affordable than others. APF (Advanced Policy Firewall) from R-fx Networks is one solution that […]

How to Close and Open Ports with iptables

Linux dedicated servers typically rely a software firewall system called iptables. With it you can control which ports allow inbound and/or outbound access. It is very important to have iptables configured properly, both for your server’s functionality and for its security.
There are many tools, both command-line based and web-based that allow you to […]