Digging Into Exim Mail Logs With Exigrep

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

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

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.

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WordPress Tutorial 4: Recommended WordPress Plugins

This is part 4 in an ongoing series on WordPress. Please see Part 1: WordPress Tutorial 1: Installation Setup and Part 2: WordPress Tutorial 2: Terminology and Part 3: WordPress Tutorial 3: How to Install a New Plugin, Theme, or Widget.

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Now that you have WordPress installed, understand the interface, and know how to install new parts, let’s take a look at our recommended plugins.
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CSF: Config Server Firewall Installation

An alternative firewall to APF is the Config Server Firewall, or CSF.

CSF is generally considered a more advanced firewall as there are more configuration options compared to other firewalls, while still being simple enough to install and configure that even novice administrators can use it. This article will give you a simple overview about how to install and configure CSF and its security plugin LFD (Login Failure Daemon).

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