Today, I got a problem with one of my website. Suddenly, I could access my website using Nginx but all themes were gone. I, then, switched back to Apache. It became worse. I can’t access my website at all. The error when access my website using Apache is below : Forbidden You don’t have permission [...]

In my day-job all our Linux boxes (bar 3) are Xen VMs. I wanted a way to take a backup of these with out the risk of the files changing underneath. For performance reasons I am running all of them on Logical Volumes. Within these VMs the DomU OS is once again using LVM for [...]

inetd is referred to as the Internet Super-Server because it manages connections for several services. When a connection is received by inetd, it determines which program the connection is destined for, spawns the particular process and delegates the socket to it. First login as a root user. FreeBSD version 5.0/6.0 or later Newer version of [...]

Our goal is to start the pppd daemon in a virtual machine. Then it is possible, for example, to connect to your DSL provider in a VM. Caveat This feature is experimental. It currently requires a version of vzctl patched with this patch. It is also necessary to run one of these 2 kernels : 2.6.27 [...]

How to turn of safe_mode in Plesk? There are 2 ways to turn off safe_mode for a domain in Plesk. 1) From the Plesk control panel.  Login to Plesk >> click “Domains” >> click “domainname.tld”  >> click “WebSite Settings” >> make sure PHP support is checked, but “safe_mode” is  unchecked >> click Save. 2) The [...]

grep xxx@xxx.com /var/log/exim_mainlog | grep “<=” | awk {’print $3′} | wc -l

How to view core.xx files in Linux? The core.xxx files are created on Linux servers and holds the current state of a process working memory when a process is crashed. To view the core.xx files in Linux, execute the command: root@host [~]# strings core.xxx It will list different state of a process on each line.

The error message “Unable to load dynamic library ‘/usr/lib64/php/modules/ffmpeg.so” is received when you add the ffmpeg.so extension to the PHP configuration file i.e. php.ini file and tries to run PHP. You can easily reproduce the error message by executing “php -v”: PHP Warning: PHP Startup: Unable to load dynamic library ‘/usr/lib64/php/modules/ffmpeg.so’ – /usr/lib64/php/modules/ffmpeg.so: undefined symbol: [...]

This is a short but potentially extremely handy guide to ghosting one Linux box to another (or simply making a full backup of a desktop/server). Credit goes to ‘topdog’ for this. You might have a small office where you customise one desktop just how you like it and need to roll this out to N [...]

I’m making a post about this because I ran into this today and I couldn’t remember how to rename a file starting with — (two or double hyphens) in Linux (e.g. –index.html). The customer has obviously used a Windows FTP client to rename index.html to –index.html so it is out of their way, and now [...]