Have you ever wanted to check up on the details of your server’s bandwidth usage? Liquid Web’s manage interface provides graphs that give you such information. Here’s how to read them.
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We recently illustrated how some of our customers were using Liquid Web’s extensive resources to leverage big data with Hadoop. While many users could benefit from the data management capabilities Hadoop delivers, finding the right software to launch it and installing Hadoop stacks may give some pause. Using Cloudera, this can be accomplished in just a few simple steps we’ll outline below. [note: There are a number of software options available to run Hadoop, however we have chosen to highlight Cloudera as it offers a great deal of simplicity, ease, and automation for those new to running Hadoop.]
Install Cloudera Manager. Liquid Web cannot install Cloudera on your servers for you due to Cloudera’s Terms of Service. However, this simple installation gives you access to automatic installation of Hadoop stacks, other related software stacks, and nodes (also known as Hadoop clusters) for free.
Choose from Cloudera’s free edition or its fully supported enterprise version if you plan on running a cluster larger than 50 nodes or if you would like additional support from Cloudera. All of the projects you launch will remain open source and can be built from source. As the free edition offers more than enough functionality and ease of use for the average user, we will proceed from here as if you have chosen this option.
Select ‘Use Parcels’, other options for parcels, and ‘Matched release for this Cloudera Manager server’
Provide SSH login credentials by selecting root and allowing all hosts to accept the same password (this can be changed in the future as needed). Once this is confirmed, Cloudera will begin installing your host(s) as well as your clusters. This may take a moment depending on the amount of data you’re importing. Once it has completed, check the list of hosts it generates and make sure everything has completed with no errors. You may run this installation again or go back and check for mistakes if it did not complete properly.
Step 6:Cloudera Manager will now allow you to select which services to install. Based on your needs, you can choose anything from “Core Hadoop” services (if you are concerned with space) to “All Services” (to ensure the functionality of any future endeavor) to your own custom options.
Once you choose the services you want to install on your cluster, the automatic installation of your Hadoop stack will complete. From here you will be taken to your main Cloudera Manager menu where you can begin using Hadoop.
Liquid Web’s Heroic Support is always available to assist customers with this or any other issue. If you need our assistance please contact us:
Toll Free 1.800.580.4985
So you have come to the realization that you need an SSL Certificate. But there are several different types. Which one do you really need?
If you are used to administering Apache on a cPanel server, administering the faster Litespeed webserver is not that much different. Litespeed transparently takes over for Apache; any configuration changes that you would normally make in an Apache configuration file or .htaccess files is still made in those files. In fact, once Litespeed is installed you can administer your cPanel server like you normally would. The few changes you would want to make to Litespeed directly can be done through your server’s Web Host Manager (WHM).
WordPress is a popular publishing platform which is known for its robust features, numerous templates, and large support community. Unfortunately, due to such popularity, WordPress is also constantly subject to attempts at exploiting vulnerabilities. Ensuring WordPress and any associated plugins are installed with the most current versions is an important means of securing your site. However, ModSecurity provides a significant amount of further security by providing an application firewall.
ModSecurity (also known as “modsec”) has proven itself useful in a variety of situations, and again this is true in assisting with WordPress brute force attempts resulting in a Denial of Service (DoS) attack. While a number of WordPress plugins exist to prevent such attacks, custom modsec rules can prevent such attacks for all WordPress installations on a server. Modsec immediately filters incoming HTTP requests, which assists against taxing server resources.
These rules will block access for the offending IP address for 5 minutes upon 10 failed login attempts over a 3 minute duration. These rules have been automatically updated in the custom rules for Liquid Web’s ServerSecure service. For customers without ServerSecure, these rules can be added to their custom modsec rules. To accomplish this, edit your custom modsec user rules and append the file with the rules provided below. For CPanel servers, this file is likely located at /usr/local/apache/conf/
Courtesy of Frameloss.org
Although the term DNS zone delegation may seem new to you, you have been using zone delegation without even realizing it. When you tell your domain’s registrar what nameservers you are using for a particular domain, you are delegating the zone for that domain.
Single zone delegation will work for most people. In fact, most use a single zone file to reference multiple hosts, or multiple subdomains residing on a single host. However, there are cases where where it may be beneficial to perform additional delegation.
In the past, load balanced setups have required dedicated networking equipment, which takes time and expertise to set up correctly. Liquid Web’s Storm Load Balancer makes setup and configuration of a load balancer as easy as filling out a web form.
The Auto Responder functionality allows for cPanel to send a pre-made response to e-mails that are received by a given e-mail account. This is extremely useful for when someone is away from their e-mail for an extended period of time and they want to convey that to other users.
Your domain is the most irreplaceable part of your web presence. Recognizing this, the Internet Corporation for Assigned Names and Numbers (ICANN) has requirements in place that help keep domain transfers secure. Of course, following these requirements means that transferring domains takes a few more steps than you might otherwise think. Here are the steps for transferring domains to and from Liquid Web:
If you process credit cards on a website, your site needs to be in compliance with the Payment Card Industry Data Security Standard. (This is abbreviated as PCI DSS, and even more often referred to simply as PCI.) PCI compliance certifies that your organization takes all necessary steps to protect sensitive customer data and provides a set of standards for your infrastructure and server setup. While Liquid Web does not offer full PCI compliance certification, we do offer a separate service that scans your server to see that PCI DSS requirements are met, a great tool during the compliance process.