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
Read moreCategory: Ubuntu, Mint & Debian Linux
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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
Read moreConfigure 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
Read moreSpecifying an SSH private key to use on the command line
You can specify which private key to use when issuing the Linux “ssh” command. This allows you to use one of many different private keys depending on which server(s) you’re connecting to. ssh -l agix example1.agix.local -i id_rsa.exmaple1 -v The above assumes that you have a private key in the
Read moreStreaming Internet Music for Asterisk 10 “Music On Hold”
This article explains how to add Music On Hold (or MOH) for Asterisk 10. The music will be streaming from the Internet – in this case, the “ABC News Radio” channel/station. Note that the download of Internet radio data starts when someone goes on hold. And stops when they go
Read moreMySQL 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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