To write a message to users that have login, you can using the command write. But before that, you need to check who is login, and which terminal he is login to, use command who...
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Step By Step Ubuntu 10.04 (Lucid Lynx) LAMP Server Setup
In around 15 minutes, the time it takes to install Ubuntu Server Edition, you can have a LAMP (Linux, Apache,MySQL and PHP) server up and ready to go. This feature, exclusive to Ubuntu Server Edition, is available at the time of installation.The LAMP option means you don’t have to install and integrate each of the four separate LAMP components.
Tune2fs Command May Increase Linux Free Disk Space
Not all of the Linux distributions allow users to tweak file system parameters during Linux installation, such as file system Reserved Block Count. Debian Linux installer allows user to change file system Reserved Block Count at Linux installation stage.
Other Linux distributions, particularly Redhat Linux, only allow user to tune file system parameters at post-installation stage, via Linux file system utility tune2fs...
How to install Ubuntu Tweak 0.5.6 beta in ubuntu 10.04/9.10
Ubuntu Tweak is an application to config Ubuntu easier for everyone.It provides many useful desktop and system
options that the default desktop environment doesn’t provide.With its help, you will enjoy with the experience of
Ubuntu!
Troubleshooting NFS
This is intended as a step-by-step guide to what to do when things go wrong using NFS. Usually trouble first rears its head on the client end, so this diagnostic will begin there...
Watching nginx upstreams with collectd
Already happy with nginx in front of Apache for a number of sites, I decided it was time to start testing nginx/fastcgi on my personal server (the serial crash test dummy of my web operations). The only problem: I have yet to find a sensible method of grabbing useful runtime information from the PHP fastcgi process itself, and if you can’t sensibly watch it, you can’t sensibly deploy it.
Administering MySQL
In this lesson of the MySQL tutorial, you will learn...
1. To start up and shut down the MySQL Server
2. To view Information about the Server and Databases
3. To view and kill Threads
4. To clear System Caches
5. Various mysqladmin Options
php 5.2 to 5.3 migration
The new release of PHP 5.3 brought many important additions and changes to PHP. Although longly awaited, some of the changes are not backwards compatible. Thus, code that worked fine with 5.2 may produce warnings or fail in 5.3.
Quick research shows that most prominent applications had to be patched or changed, even though minimally, to work cleanly with 5.3. To help people to convert their web applications to 5.3, I present here a migration script that would allow you to inspect your applications for potential migration problems.
Creating a VPN in Minutes Using Remobo
Remobo is a free software which can be used to replace the paid versions of existing difficult to use VPN setups
as it can create a VPN instantly and securely. It lets you login easily and add users to your buddy list, and create a secure network for you.
Varnish HTTP accelerator
A basic Varnish installation consist of Varnishing sitting in from of your web server (referred to as back-end), clients will interact solely with Varnish and never know there is a back-end web server (nor should they have access to the back end directly). When a request comes in to Varnish for a page that is being cached over a standard HTTP connection Varnish will either service this directly to the client (without sending a request to the back-end) from Varnish’s cache if exist or if not in cache will send a request to your web back-end over its TCP socket via an HTTP request...