System
16/06/2016
Pipes and redirection
Many system administrators seem to have problems with the concepts of pipes and redirection in a shell. A coworker recently ...
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Nmon – A nifty little tool to monitor system resources on Linux
Source: binarytides.com Nmon Nmon (Nigel's performance Monitor for Linux) is another very useful command line utility that can display information ...
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Glances gives a quick overview of system usage on Linux
Monitor your Linux systemAs a Linux sysadmin it feels great power when monitoring system resources like cpu, memory on the ...
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How do I change, sort, add, remove graphs with Munin?
Graphs on MuninEnable and disable plugins on each nodeGraphs are added and removed via symlinks in the /etc/munin/plugins/ directory of ...
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An lsof Primer
Source: Daniel Miessler Key Options Getting Information About the Network User Information Commands and Processes Files and Directories Advanced lsof ...
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Installing A High Availability Web Server Cluster On Ubuntu 12.10 Using HAProxy, HeartBeat And Lampp
What is the main objective of this entire topology?Redundancy and Load Sharing! Imagine a scenario where your single web server ...
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Installing a high availability web server cluster on Ubuntu 12.04 LTS using HAProxy, HeartBeat and Nginx
How to set-up a high-availability clusterHere are a few notes about how to set-up a high-availability web server farm using Ubuntu ...
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Automating the Deployment of a Scalable WordPress Site
IntroductionIn this guide we will create and deploy a scalable WordPress instance consisting of a MySQL database server, a GlusterFS ...
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Les systèmes de détection d’intrusions
I. IntroductionLes systèmes d'information sont aujourd'hui de plus en plus ouverts sur Internet. Cette ouverture, a priori bénéfique, pose néanmoins ...
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Using iptables and watch command
Using iptables to list filtering rules is OK. Running this command in a shell loop can help but it needs ...
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Ubuntu Linux /etc/network/interfaces networking example
Source: nixCraftQ. Can you explain how to setup network parameters such as IP address, subnet, dhcp etc using /etc/network/interfaces file?A ...
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How To Use ProxySQL as a Load Balancer for MySQL on Ubuntu 16.04
Introduction ProxySQL is an open-source MySQL proxy server, meaning it serves as an intermediary between a MySQL server and the ...
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How To Create a High Availability Setup with Heartbeat and Floating IPs on Ubuntu 14.04
Source: Digital Ocean - Mitchell Anicas Introduction Heartbeat is an open source program that provides cluster infrastructure capabilities—cluster membership and ...
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Administration réseau sous Linux: SSH
Source: Wikilivres SSH signifie Secure SHell. C'est un protocole qui permet de faire des connexions sécurisées (i.e. cryptées) entre un ...
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Use a classic menu in Unity
Source: WebUpd8 If you find Dash to be confusing and want to use a classic menu in Unity, you have ...
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Allow A Normal User To Run Commands As root Under Linux / UNIX Operating Systems
Source: nixCRAFT You need to use the sudo command which is use to execute a command as another user. It ...
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