Unix

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

Apache22 Won’t Start in FreeBSD 9

Sometimes you may get issues to start Apache on FreeBSD, in my case FreeBSD 9.1. How to solve this? # /usr/local/etc/rc.d/apache22 start Performing sanity check on apache22...

Install PostgreSQL and phpPgAdmin on Debian 7 ‘Wheezy’

PostgreSQL is a powerful, open-source object-relational database system. It runs on all major operating systems, including Linux, UNIX (AIX, BSD, HP-UX, SGI IRIX, Mac...

How to Install Samba in FreeBSD 9

I will not give a definition of Samba because every Unix/Linux Administrator should know about it. I will skip directly to show you an...

VirtualBox Guest Additions for FreeBSD Guest

I was performing some tests in FreeBSD 9.1. The KDE desktop was too small and I want to show you how I have installed...

Chroot Jail

This article was written with an intention to help Linux users in understanding the Chroot Jail feature and setup one themselves, for experimenting. Imprisoning users...

Reset MariaDB Root Password in CentOS 6.4

I have forgot my MariaDB root password and when trying to reset the root password I was thinking, "Let Unixmen readers know how I...

Install PacketFence Network Access Control on Ubuntu

PacketFence is a network access control (NAC) system featuring a captive-portal for registration and remediation, wired and wireless management, 802.1x support, isolation of devices,...

How to Disable SSH Root Login in GNU/Linux

As we all know, root SSH login is enabled by default in GNU/Linux. We can easily access our remote servers and manage them if...

How to Install WvDial in Arch Linux

Hello all USB modem Arch Linux users. In this article, I am going to show you the way to connect your USB modem in your...

How to Install Latest GIT on RHEL 6/CentOS 6

So you want to setup a GIT Repository for your developers on RHEL 6/CentOS 6, but notice Red Hat Enterprise Linux 6 contains 1.7.1...

Monitor Per Process Network Bandwidth Usage with Nethogs

NetHogs is an open-source, small 'net top' tool. Instead of breaking the traffic down per protocol or per subnet, like most tools do, it...

How to Prevent SSH Brute Force Attacks with Fail2Ban on Debian...

Fail2ban is an open-source intrusion prevention system that can be used to prevent brute force attacks and other suspicious malicious attacks. It scans log...

How to Harden Your Linux Servers Security with Bastille

The Bastille hardening program "locks down" an operating system, pro-actively configuring the system for increased security and decreasing its susceptibility to compromise and downtime....

Install GestioIP IP Address Management Tool on Ubuntu/Debian

GestióIP is an automated, web-based IPv4/IPv6 Address Management (IPAM) software. It features powerful network discovery functions and offers search and filter functions for both...

Automate Tasks with GNOME Schedule

GNOME Schedule is a graphical user interface (GUI) tool that leverages the power of cron. It brings together the power of cron with the...

Play With Directory Stack

Sometimes we work with long paths in directories and it is hard to remember all of them. What about popping them when we need...

Easy Navigation Through Your Folders

Tired of typing long path names? Me too. I have a very good solution that will save you time and energy. Type less, be...

Cross Compilation Across Several Networked Computers on Gentoo

This tutorial covers crossdev and distcc that allow users to cross compile across several networked computers on Gentoo. I used it on an Intel Celeron...