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Posts tagged ‘CentOS’

Repost: Install svn server on centos 6

SVN – Apache subversion

SVN – Subversion is a versioning and revision control system used by developers to track and keep up earlier versions of their source codes.

In this article we can see how to setup svn server on centos 6.

 

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Repost: CentOS SSH Installation And Configuration

How do I install and configure ssh server and client under CentOS Linux operating systems?

You need to install the following packages (which are installed by default until and unless you removed it or skipped it while installing CentOS)

  • openssh-clients : The OpenSSH client applications
  • openssh-server : The OpenSSH server daemon

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Repost: Setup FTP Server step by step in CentOS / RHEL / Scientific Linux 6.3/6.4/6.5

This tutorial shows you how to install and configure FTP server in CentOS 6.5. Though the steps provided here are tested in CentOS 6.5, it should work on RHEL 6.x(x stands for version) and Scientific Linux 6.x too. In this tutorial my ftp server ip and hostname are 192.168.1.200 and mainserver.ostechnix.com respectively. I have already configured a local repository and i am gonna to install FTP from my local repository. For more information navigate to setup your local repoistory in CentOS 6 / RHEL 6 / Scientific Linux.

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Repost: How to install Puppet server and client on CentOS and RHEL

As a system administrator acquires more and more systems to manage, automation of mundane tasks gets quite important. Many administrators adopted the way of writing custom scripts, that are simulating complex orchestration software. Unfortunately, scripts get obsolete, people who developed them leave, and without an enormous level of maintenance, after some time these scripts will end up unusable. It is certainly more desirable to share a system that everyone can use, and invest in tools that can be used regardless of one’s employer. For that we have several systems available, and in this howto you will learn how to use one of them – Puppet.

What is Puppet?

Puppet is an automation software for IT system administrators and consultants. It allows you to automate repetitive tasks such as the installation of applications and services, patch management, and deployments. Configuration for all resources are stored in so called “manifests”, that can be applied to multiple machines or just a single server. If you would like to know more information, The Puppet Labs site has a more complete description of what Puppet is and how it works.

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Repost: How To Edit the Sudoers File on Ubuntu and CentOS

Privilege separation is one of the fundamental security paradigms implemented in Linux and Unix-like operating systems. Regular users operate with limited privileges in order to reduce the scope of their influence to their own environment, and not the wider operating system.

A special user, called root, has “super-user” privileges. This is an administrative account without the restrictions that are present on normal users. Users can execute commands with “super-user” or “root” privileges in a number of different ways.

In this article, we will discuss how to correctly and securely obtain root privileges, with a special focus on editing the /etc/sudoers file.

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Link

Repost: CentOS Linux Install and Configure NTP to Synchronize The System Clock

Repost: CentOS Linux Install and Configure NTP to Synchronize The System Clock

How do I install and configure NTP under CentOS Linux version 5.x or 6.x server to synchronize the system clock?

You can easily install NTP (Network Time Protocol, a means of transmitting time signals over a computer network) using the yum command under Red Hat or CentOS/Fedora Linux server or workstation based systems. You need to install the following packages:

  1. ntp : ntpd server which continuously adjusts system time and utilities used to query and configure the ntpd daemon.
  2. ntpdate : Utility to set the date and time via NTP.
  3. ntp-doc : NTP documentation

Procedure: Setup NTPD on CentOS Linux

Open the terminal or login over the ssh session. You must login as as the root user. Type the following yum command to install ntp
# yum install ntp ntpdate ntp-doc

Turn on service, enter:
# chkconfig ntpd on

Synchronize the system clock with 0.pool.ntp.org server (use this command only once or as required):
# ntpdate pool.ntp.org

Start the NTP server. The following will continuously adjusts system time from upstream NTP server. No need to run ntpdate:
# /etc/init.d/ntpd start

Configure ntpd (optional)

Edit /etc/ntp.conf, enter:
# vi /etc/ntp.conf
Set public servers from the pool.ntp.org project:

server 0.rhel.pool.ntp.org
server 1.rhel.pool.ntp.org
server 2.rhel.pool.ntp.org
Link

Repost: How to Install Red5 on CentOS

Repost: How to Install Red5 on CentOS

Red5 Media Server 1.0 delivers a powerful video streaming and multi-user solution to the ©Adobe ©Flash Player and other exciting client technologies. Based on Java and some of the most powerful open source frameworks, Red5 stands as a solid solution for business of all sizes including the enterprise.

Red5 includes support for the latest multi-user API’s including NetConnection, NetStream and SharedObject’s while providing a powerful RTMP / Servlet implementation. In addition to support for the RTMP protocol, the application server has an embedded Tomcat Servlet container for JEE Web Applications. Application development draws additional benefits from the Spring Framework and Scope based event driven services.

By using the Open Source Red5 Media Server, you are developing with a truly open and extensible platform that can be used in Video Conferences, Multi-User Gaming and Enterprise Application Software.  – Red5.org

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