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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Reading Bandwidth Graphs In Manage
How to Install Hadoop with Cloudera
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.]
Step 1:
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.
Step 2:
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.
Step 3:
You will now need to specify the hosts for your installation:
Step 4:
Select ‘Use Parcels’, other options for parcels, and ‘Matched release for this Cloudera Manager server’
Step 5:
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
International 517.322.0434
support@liquidweb.com
https://manage.liquidweb.com/
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WordPress ModSecurity Rules
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.
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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/
SecAction phase:1,nolog,pass,initcol:ip=%{REMOTE_ADDR},initcol:user=%{REMOTE_ADDR},id:5000134
<Locationmatch "/wp-login.php">
# Setup brute force detection.
# React if block flag has been set.
SecRule user:bf_block "@gt 0" "deny,status:401,log,id:5000135,msg:'ip address blocked for 5 minutes, more than 10 login attempts in 3 minutes.'"
# Setup Tracking. On a successful login, a 302 redirect is performed, a 200 indicates login failed.
SecRule RESPONSE_STATUS "^302" "phase:5,t:none,nolog,pass,setvar:ip.bf_counter=0,id:5000136"
SecRule RESPONSE_STATUS "^200" "phase:5,chain,t:none,nolog,pass,setvar:ip.bf_counter=+1,deprecatevar:ip.bf_counter=1/180,id:5000137"
SecRule ip:bf_counter "@gt 10" "t:none,setvar:user.bf_block=1,expirevar:user.bf_block=300,setvar:ip.bf_counter=0"
</locationmatch>
<Locationmatch "/wp-login.php">
# Setup brute force detection.
# React if block flag has been set.
SecRule user:bf_block "@gt 0" "deny,status:401,log,id:5000135,msg:'ip address blocked for 5 minutes, more than 10 login attempts in 3 minutes.'"
# Setup Tracking. On a successful login, a 302 redirect is performed, a 200 indicates login failed.
SecRule RESPONSE_STATUS "^302" "phase:5,t:none,nolog,pass,setvar:ip.bf_counter=0,id:5000136"
SecRule RESPONSE_STATUS "^200" "phase:5,chain,t:none,nolog,pass,setvar:ip.bf_counter=+1,deprecatevar:ip.bf_counter=1/180,id:5000137"
SecRule ip:bf_counter "@gt 10" "t:none,setvar:user.bf_block=1,expirevar:user.bf_block=300,setvar:ip.bf_counter=0"
</locationmatch>
Courtesy of Frameloss.org
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