Essential vs. Wildcard vs. EV SSL Certificates
SSL certificates are an important part of online business. They bind small digital files with a cryptographic key to ensure safety during online transactions. After they have been installed on a...
View ArticleHow to Fix the Bash Shellshock Vulnerability on Linux
In the previous post, we explained how to check your Linux server for the highly publicized Shellshock vulnerability in Bash. Fortunately, most, if not all, major Linux distributions have already...
View ArticleHow to Check Your Server for Bash Shellshock Vulnerability
The hosting world has been hit with yet another highly publicized server vulnerability. This one affects the ubiquitous shell program GNU Bash and is referred to as Shellshock. Most Linux, BSD and Mac...
View ArticleHow to Configure Linux Password Policies
One of your best weapons in the fight for server security is strong password management. Using the password policies you set in Linux, you enforce strong passwords, require password renewals and many...
View ArticleLinux Server Security Guide: Part 5
Malware and Spam Of all the security problems a server might have, malware and spam are particularly despicable. Few things are worse than finding out you have a virus or other malware infecting your...
View ArticleLinux 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...
View ArticleLinux Server Security Guide: Part 2
System Logs Every Linux operating system keeps logs for system processes and applications. You can use those logs to monitor server performance and also sniff out any abnormalities that may be security...
View ArticleLinux Server Security Guide: Part 1
Over the years at Dedicated Server School, we have provided you with numerous security tips, often on an individual and specific level. This five-part series will instead give a general overview of...
View ArticleRun an End-of-Year Security Audit
As the end of the year approaches, now is a good time to make sure your server is living up to your security standards. It might be easy to neglect if you do not have any noticeable security problems,...
View ArticleHow to Require Regular Password Changes
A server is only as strong as its weakest user, and a weak user will have a weak password. One way you can at least make passwords a little more secure is to require users to routinely change them. To...
View ArticleConfigure Linux to Restrict SuperUser to One Group
The last thing you would ever want or need on your dedicated server is for an unauthorized user to gain root access. This applies to both those external users with malicious intent and those who have...
View ArticleSentry Tools: Host-Level Security for Linux/Unix Servers
Linux dedicated server security does not have to be overly complex. With the right tools, you can accomplish your security goals with efficiency. One such project, Sentry Tools, offers host-level...
View ArticleA Basic Guide to SSH Server Connections: Part 2
Connecting to an SSH server is usually pretty straightforward, and your login credentials are encrypted for security. This makes SSH useful for other types of connections beyond basic shell access....
View ArticleHow to Run Commands as Another User
In a previous post, we explained how to use “su” to execute a command as another user, but that is only one of the many ways you can accomplish this on a Linux or Unix server. The following techniques...
View ArticleEncrypt Your Linux Server Filesystem with eCryptfs
Encryption has become a highly requested feature on the web lately with all of the talk of government spying, heartbleed and general security concerns. While most discussion has centered around...
View ArticleHow to Update Your OpenSSL Version to Fix Heartbleed Bug
Heartbleed, the highly publicized OpenSSL bug with the unfortunate name, has a lot of system administrators scurrying to fix the problem. If you have not heard about it by now, it is a security hole...
View ArticleThe Benefits of SSH Tunneling
SSH tunneling is a method of connection that, as the name implies, tunnels your information stream through SSH. The result is an encrypted and secure transaction, even if the standard connection method...
View Article5 More Basic Server Security Tips
In a previous post, we highlighted some crucial security measures you should adopt to keep your dedicated server safe. What follows are five more tips that are of equal or even greater importance. 1....
View Article5 Basic Server Security Tips
As we approach the end of the year, now might be a good time to review your security practices and fix any weaknesses in your system. The following are 5 basic security tips to keep your server secure....
View ArticleInstall and Configure APF Firewall on an Ubuntu Server
In a previous post, we learned how to install a basic LAMP server setup on an Ubuntu Server. Once you have Apache, MySQL, and PHP up and running, you should strongly consider reconfiguring your...
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