Digging Into Exim Mail Logs With Exigrep

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Perhaps a particular domain on your cPanel server has stopped receiving e-mail. Or, an address on your domain is able to receive e-mail, except from your supplier. Maybe you can receive e-mail just fine, but are receiving error message bounce-backs from Yahoo. How are you going to get the fine-grained information you need to figure out just what is going on?

The answers you seek can be found in exim’s logs.

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Updating an A record in cPanel

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Domain Name System, or DNS, is a complex system to understand, but cPanel has simplified the administration of DNS by adding it to the WHM interface. One of the most common tasks involved with administrating DNS is updating an A record. A records are one of the most common DNS entries, and cPanel makes updating them easy.
This article assumes that you are running BIND on a Linux server, that you already have an understanding of what DNS is, the different types of DNS entries, and how DNS works. Please note: The incorrect editing of your zone file can take your site offline. All editing must be done on the authoritative nameservers for the given domain.

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Understanding Load Balancing for Web Servers

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Load balancing is the distribution of a workload across many nodes. In the web hosting 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.

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WordPress Tutorial 3: Install a Plugin, Theme, or Widget

Reading Time: 3 minutesThis is part 3 in an ongoing series on WordPress. Please see Part 1: WordPress Tutorial 1: Installation Setup and Part 2: WordPress Tutorial 2: Terminology and Part 4: WordPress Tutorial 4: Recommended WordPress Plugins. Please note that this guide is primarily intended for customers utilizing a Linux server running cPanel. If you do not have a Linux server with cPanel please see the documentation at wordpress.org for further assistance.

The three most common changes you will make to your website involve the look (themes), the functionality (plugins), and modular elements (widgets).
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How To: Lowering Your DNS TTLs

Reading Time: 2 minutesWhenever making DNS changes, lowering your TTLs (Time To Live) 24 hours ahead of time will reduce the amount of time that your change takes to propagate.
This article assumes that you are running BIND on a Linux server, that you already have an understanding of what DNS is, the different types of DNS entries, and how DNS works. Please note: The incorrect editing of your zone file can take your site offline. All editing must be done on the authoritative nameservers for the given domain.

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How and Why: Enabling Apache’s Piped Logging

Reading Time: 3 minutesApache by default logs data directly to log files. While this isn’t a bad thing, it is not your only option. Both Apache 1.x and Apache 2.x bring with them the option of enabling something called “Piped Logging”, though cPanel will only allow you to enable it for version 2.x.

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