CentOS



Installing OpenVPN:

# yum install openvpn

Create OpenVPN configuration files:



You have to understand that correctly set time on the server, it is a very important factor, as if time is not configured correctly, while on the sites will not be displayed correctly, will also not work cron mail.

And other system tasks that must be done at night when the server load and traffic sites are minimal run not night and day or night, in the peak attendance.



XSLT --a language for transforming XML documents into other XML documents. The XSLT document is an XML document and belongs to a family of functional languages, having different purpose compared to procedural and object-oriented languages like PHP.

Installing LibXSLT CentOS server with Directadmin very easy. Consider the process PHP5installations.

CentOS: configuration run CGI scripts in apache 2.0



Small subtlety configure Bind 9



Any executable program is called process. Everything starts when you turn on your computer, is a process. Each process runs on behalf of any user. Processes that are started at boot are usually run as root user, or on behalf of the user nobody. Processes are running, you are typically performed on your behalf. Processes started by other users under their name.

You can manage the processes that you started. In addition to this, root can control all processes in the system, even those run by other users. Processes to manage and monitor them through special programmes, as well as using some shell commands.



Very often you need to understand how and where is the traffic. A variety of logs sometimes do not give the full picture. For example, a php script may generate more traffic, which will not be reflected in the Web server logs.

To resolve this problem, there is IFTOPpackage.



Sometimes in the analysis of the load on the server you want to know what exactly the sites/pages load server.

This is very well suited to the Apache server-status. In this article and discussed on how to use it and activate it.



Mod_perl --this is an Apache module that implements the Perl interpreter + set of Perl modulesproviding the following

: 1 interesting opportunities. Caching otkompilirovanyh cgi scripts (Apache::Registry. 00 pm)

2. Perl interface to Apache C API

Most developers use mod_perl to increase the productivity of their scripts--Apache does not start a new process for each request to the script, because it now has its own Perl interpreter, and compile the script .pl on each request, as Apache::Registry. 00 pm keeps your otkompilirovanye scripts in the cache. Perl interface to Apache C API is used by developers not so often.



How to add additional IP OS CentOS? Yes very easy.

How to add is described in this article.