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zone file Servers do a fantastic job of writing down in log files what is happening right that moment. While going back and reading logs later to determine what happened in the past is helpful, it is also useful to watch logs in real time. Linux provides a command line tool that lets us do just that: tail.
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One component of Liquid Web’s Server Secure service is an Apache module called Mod Security (often shortened to just “modsec”). Modsec monitors all incoming HTTP requests for malicious behavior, and does not complete requests that meet certain criteria. These criteria are spelled out in what are called “rules” or “rulesets”.
In an ideal world, only malicious requests would be caught in modsec’s trap. Unfortunately, there are some instances where legitimate requests are stopped as well. How do we determine that this is what happening, and what can we do about it?
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PHP is an important part of your cPanel server. One aspect of PHP’s configuration that can be overlooked is the PHP handler. The PHP handler is the specific implementation of PHP on your server that interfaces with Apache. On a cPanel server, there are four main PHP Handlers:
Each has a distinct way of processing PHP code. One or the other may be the best fit for your server.
As odd as it may sound, the manner in which you link on a web page can unnecessarily increase load on your server. If you are experiencing server load, reviewing your sites for these linking practices could help.
The Apache web server is the most popular web server in the world. This is in part due to its modular design. With Apache 2.0 came the Multi Process Modules, or MPMs. The MPMs change the basic functionality of the web server. They do this by modifying how Apache listens to the network, accepts and handles requests. A lot of this functionality is rather technical and outside of the purview of this article. This article will briefly explain what the various MPMs are and how they work. For more information on the various MPMs, please visit the Apache Documentation.
The Apache web server is one of the most popular and powerful web servers in the world, due to its ease of administration and flexibility. This flexibility comes Apache’s modular design. The modules allow for Apache to provide URL rewriting to SSL encryption natively. This allows Administrators to modify Apache to meet their needs; adding modules that are needed and removing ones that are not.
Load balancing is the distribution of a workload across many nodes. In the webhosting industry, it is typically used for balancing http traffic over multiple servers acting together as a web front-end. For the sake of this article, we will focus on the balancing of HTTP and HTTPS traffic through a Zeus Load Balancer.
‘Premature end of script headers’ can be an extremely vague error that leads to some headaches. Here are some suggestions that might help you fix the problem.
If Apache fails, and will not successfully start again, check the error log. If you see an error similar to the following, it could indicate that your server has run out of semaphores.
Many customers tell us how overwhelming setting up their first web site feels. Between DNS, e-mail, document roots, software versions, and all the other details involved in setting up a web site there is a lot to keep track of.
This guide will help you understand the core items you need to know about your domain and server, what they do, and why they are so important.
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