In today’s digital world, we all use Wikis frequently – probably even more so than we realize. A wiki is a collaborative application, typically online, where information is sourced, modified and expanded by its audience. Anyone is able to contribute his or her knowledge to a topic. Because there is, at… Read More
Git is a wildly popular free distributed revision control system that enables developers to manage larger projects with greater efficiency – specifically projects that require multiple developers. Git was originally developed to run in the Linux Kernel development environment in 2005 with an emphasis on supporting non-linear workflows with… Read More
Domain Name Servers, commonly called “DNS” for short, keep IP addresses organized and documented. IP addresses, comprised solely of numeral characters, are incredibly difficult for human users to remember, but they’re also necessary for the internet to locate and transfer data. To enable these users to locate data on… Read More
All proficient Linux users rely heavily on log files. These files are used to access information not only about the user’s operating system itself, but also the services and applications that run off of it. Log files may also be used for information about system security,… Read More
Early in 2015, the Qualys security research team discovered an extremely critical vulnerability in the Linux GNU C Library (glibc for short). The vulnerability, dubbed “GHOST,” would allow hackers to take control of a system remotely without requiring them to provide any security credentials. By accessing the glibc, a hacker… Read More
OSSEC is a popular host-based intrusion detection system (HIDS). One of the factors driving OSSEC’s popularity is that it is an open-source project, meaning that it’s available at no cost. Able to run on Windows, Linux, MacOS, Solaris, HP-UX and AIX, OSSEC is a HIDS that nearly everyone can take… Read More
We’ve all been there – that moment when your server’s traffic figures begin to spike. The steady rise in volume for what can feel like days with no sign of slowing down. Phone calls start coming in – customers having problems with your website. The server’s load time steadily inches… Read More
Content Delivery Networks, more commonly known as CDNs, are systems of servers located in different places that work together to create a single strong network. These servers provide end users with premium server performance. CDNs are great solutions for any website that transfers large quantities of data but they are an especially great way for webmasters to distribute social websites, downloadable objects, streaming media, and applications.
If you use CentOS VPS, displaying the correct time zone can be an issue. If you type “date” into the SSH terminal, the date and time displayed are likely incorrect. Remember, CentOS uses the file /etc./localtime to decide the appropriate time zone to display without ever asking… Read More
When using an Apache web server, a user must understand what modules he or she is running. These modules account for the vast majority of an Apache server’s functionality, so even the smallest issues or module failures can create a serious detriment to the server’s ability to perform.
Understanding Static and Shared Modules
Static modules are already built into the Apache executable… Read More