Tag Archives: Linux

Linux

Install APC on CentOS 5

APC (Alternative PHP Cache) is a free and open cache for PHP. It’s a free framework for caching and optimizing PHP intermediate code. In other words, it could improve your php website performance Here are some instructions on how install APC on CentOS 5:

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Linux

When starting VirtualBox i got the error: VirtualBox: supR3HardenedMainGetTrustedMain: dlopen(“/usr/lib/virtualbox/VirtualBox.so”,) failed: VBoxVMM.so: cannot open shared object file: No such file or directory It took me some time to find a solution, it’s a dirty trick, but it actually works; on 32 bit systems: find /usr/lib/virtualbox/ -name \*.so -exec ln -s -t /lib ‘{}’ ‘;’ on […]

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Linux

I don’t know why but suddenly the cursor keys don’t work anymore. The keypad moves my mouse pointer. I tried numlock The solution:

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Linux

Removing annoying ^M characters that show up in files after edited on a Windows box. :%s/[ctrlkey+v and ctrl-key+M]//g And in VI the command shows like: :%s/^V^M//g

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Wordpress

To enable and use persistent connections with WordPress, simply login to your web host with SSH (or insecure Telnet), and change to the webroot home directory where WordPress blog is installed. Then change directory into wp-includes directory.

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Linux

Whenever a client connects to a server via network, a connection is established and opened on the system. On a busy high load server, the number of connections connected to the server can be run into large amount till hundreds if not thousands. Find out and get a list of connections on the server by […]

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Linux

Linux top; VIRT RES SHR

VIRT stands for the virtual size of a process, which is the sum of memory it is actually using, memory it has mapped into itself (for instance the video card’s RAM for the X server), files on disk that have been mapped into it (most notably shared libraries), and memory shared with other processes. VIRT […]

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