Unix

all about unix systems (Hpux/IRIX/Solaris/BSD

OpenFire Jitsi as Skype(desktop sharing) and Temviewer(remote control)

Openfire - Jabber/XMPP is a server written in JAVA. This is free software and is also official support. Management has a WEB panel and...

FreeBSD 9.2 x64 OpenVPN AD authentication with crypt

In this article we will integrate OpenVPN to Domain Controller. But channel between client and server will be crypt with certificate. The network configuration will...

FreeBSD nGinx FFmpeg camera recording and live streaming

NGINX FFMPEG Camera recording and live streaming We will install and configure FFMpeg on FreeBSD 10.1 x64 server and will learn how to convert video/audio...

What Is Fork Bomb And How Can You Prevent This Danger?

If you are not thrilled with the real bomb, you can try typing this  :(){ :|:& };:  on your Linux terminal to crash your computer. you...

FreeBSD Snort IPS

The topology will be as follows: Apache, MySQL and PHP already installed and configured. In /usr/local/etc/php.ini file configure the  following lines: error_reporting = E_ALL & ~E_NOTICE date.timezone =...

FreeBSD 10.1 x64 WiFi Captive Portal

Our goal is to build a FreeBSD server Captive Portal as it is in hotels and airports. Guest joins to wifi without entering a...

How Can We Use Operators In Linux and Unix CLI?

A token that performs a control function. It is a newline or one of the following: Ampersand ( & )  When a line ends with ampersand...

FreeRADIUS Active Directory Integration with NTLM-MSCHAP

We must install and configure Active Directory and DNS server in Windows 2008 or Wındows 2012 server. In my environment I used windows 2008...

10 Useful Utilities For Linux Users

Introduction In this tutorial, I have collected 10 useful utility tools for Linux users which will include various network monitoring, system auditing or some another...

Ken Thompson UNIX systems father

Kenneth Thompson, or as they call him "Ken", the creator of UNIX and co-inventor of the "C" language. He was born in February 1943,...

Using Tcpdump To Capture And Analyze Network Traffic

Introduction Tcpdump is one of the finest tools available for network analysis. It is a must have tool for all of the Network Administrators and...

Install The Ajenti Control Panel And Ajenti V On Ubuntu

In this tutorial, we will demonstrate how to install Ajenti on Ubuntu, a free open source web control panel, which is easy to install...

Recompile A FreeBSD Kernel With A Custom Configuration

Introduction FreeBSD is a free Unix-like operating system descended from Research Unix via the Berkeley Software Distribution (BSD). Although for legal reasons FreeBSD cannot use...

Getting One Time Password for FreeBSD using OPIE

Introduction Secure Shell, or SSH, is a cryptographic (encrypted) network protocol for initiating text-based shell sessions on remote machines in a secure way. This allows a user...

How To Reset Or Recover Root Password On FreeBSD 10

Let me show you How to Reset or Recover Root Password on FreeBSD 10. My system: root@Freebsd-unixmen:~ # uname -a FreeBSD Freebsd-unixmen 10.1-RELEASE-p6 FreeBSD 10.1-RELEASE-p6 #0: Tue...

Install Tomcat 8 In FreeBSD 10/10.1

About Apache Tomcat From Wikipedia, Apache Tomcat is an open source web server and servlet container developed by the Apache Software Foundation (ASF). Tomcat implements the Java Servlet and the JavaServer Pages (JSP) specifications from Sun Microsystems, and provides...

The Most Important BSD Distributions

About BSD Berkeley Software Distribution, abbreviated as BSD, is a UNIX operating system derivative, developed and distributed at the university of California, Berkeley, from 1977...

Red Hat Certified Engineer RHCE Exam

This exam and the exam objectives provided here are based on the Red
 Hat Enterprise Linux 7 version of the exam. The performance-based RHCSA exam...