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All HowTo's Linux Ubuntu, Mint & Debian Linux

Basic Website Stress-Test with Gatling2

This article demonstrates how to run a basic website stress-test using Gatling2. See the previous article on how to install Galting2. In this example, i’m running Gatling2 from “/root/gatling2/”. Create a file in the “/root/gatling2/user-files/simulation/” directory called “MyTest1.scala” (/root/gatling2/user-files/simulation/MyTest1.scala). Add the following content to it: import io.gatling.core.Predef._ import io.gatling.core.session.Expression import

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All HowTo's Cybersecurity Linux Redhat, Fedora and CentOS Linux Ubuntu, Mint & Debian Linux

Sudo Without a Password & Restricted Commands/Groups – CentOS and Redhat

This article explains how to use SUDO without being prompted for the password. We can restrict which users and/or groups can do this. As root, edit the file “/etc/sudoers”. Add the line: agix ALL=(ALL) NOPASSWD: ALL The above means that the user “agix” can use sudo without being prompted for

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All HowTo's Linux Redhat, Fedora and CentOS Linux Ubuntu, Mint & Debian Linux Web Servers

Configure Varnish Cache for Multiple Domains – CentOS/Redhat 6

This article applies to Varnish 3. This article explains how to configure the Varnish Cache to cache for multiple domains on the same backend server. I’ve used CentOS 6.2 for this example. In this example, Varnish is listening on TCP port 80. The DNS “www” “A” record for the domains

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All HowTo's Linux MySQL & MariaDB Redhat, Fedora and CentOS Linux Ubuntu, Mint & Debian Linux

MySQL Database Replication Example

This article explains how to install MySQL 5.1 on Redhat/CentOS and configure replication to a slave MySQL server. In this article, the master host has the IP address “192.168.122.7” and the slave has IP address “192.168.122.6”. Remember to restart the MySQL server if and when you make changes to the

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