Debian

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Server monitoring with Nagios on Ubuntu 14.04 Trusty Tahr and Debian Wheezy

Server monitoring with Nagios on Ubuntu 14.04 Trusty Tahr and Debian Wheezy

This document describes how to install and configure Nagios in Ubuntu 14.04 Server.  Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.

Asterisk Installation on Debian 7 (Wheezy)

Asterisk Installation on Debian 7 (Wheezy)

This paper provide installation instructions for Debian linux 7 & Asterisk on a new platform.

Monitor Ubuntu 14.04 and Debian Wheezy Servers with Linux-Dash

Monitor Ubuntu 14.04 and Debian Wheezy Servers with Linux-Dash

This document describes how to install and configure Linux-dash in Ubuntu 14.04 and Debian Wheezy for monitoring server performances easily. Linux-dash is a low-overhead monitoring web dashboard for a GNU/Linux machine. Simply drop-in the app and go! Linux-dash is a memory efficient, low resource, easy to install, server statistics monitoring script written in PHP. The web statistics page allows you to drag and drop the various widgets and rearrange the display as you desire. The script displays live statistics of your server, including RAM, CPU, Disk Space, Network Information, Installed Software’s, Running Processes and much more. The main advantage of Linux-dash is that it works on real-time basis.

How to use ISPConfig and Seafile without manual file modifications

Seafile is an open-source cloud based file storage system similar to Dropbox & Box. The difference is that Seafile can be deployed on a client's own system. This provides a greater safety and security factor as the passwords are only interchanged between the client who setup the system, and his / her own users rather than a corporate cloud hosting company.

How to secure your ISPConfig 3 server against the poodle SSL attack

How to secure your ISPConfig 3 server against the poodle SSL attack

In the following guide I will describe the steps to secure your server against the recent poodle SSL attack. I will use a ISPConfig 3 perfect server on Debian 7 for my examples, but the same steps will work on any other Linux Distribution as well. A default ISPConfig hosting server runs the following services: Webserver (Nginx or apache), Mailserver (Postfix and Dovecot / Courier), FTP-Server (pure-ftpd) that offer SSL / TLS connections and are potential targets for a poodle attack.

How To Run Your Own Git Server With GitlabHQ On Debian 7 (Wheezy)

How To Run Your Own Git Server With GitlabHQ On Debian 7 (Wheezy)

This document describes how to install and configure Git and GitHub. These are great tools to manage and administer a whole host of Git repositories and the associated permissions. So, these remain true blessings for users writing open source software, however, when writing a closed source software may not be comfortable in trusting the code to a third party server. To gain the much-needed flexibility and control on stuff like Github/BitBucket without hosting the git repositories on servers that lie external to the control of users, GitLab remains a Godsend!

Debian Wheezy: Split and resize Xen disk image

Background

One of my Xen virtual servers needed to have its 400G disk split and resized over the weekend, and I wanted to keep downtime to a minimal. The disk had 240G used, 235G of which was a /backup directory, and the remaining 5G dedicated to a regular Debian Linux installation. I wanted to split the disk into a two disks - a 20GB disk containing the Linux system, and a 300G disk to mount as /backup. Then I could apply my DRBD setup to replicate that 300G backup partition to a separate 2nd backup machine.

Installing and using Tundeep for network tunnelling and testing on Debian

Installing and using Tundeep for network tunnelling and testing on Debian

Tundeep is a network tunnelling daemon written in C that runs in userspace using libpcap. Tundeep is used as a security testing tool allowing a tester to tunnel through the target network at layer 2. A TAP interface will be brought up on the tester's machine for each level of the network allowing direct interaction with hosts on the network segment through a compromised client device.

How to install OpenLDAP Server on Debian or Ubuntu

How to install OpenLDAP Server on Debian or Ubuntu

This document describes how to install and configure OpenLDAP in Debian/Ubuntu Server. I will use OpenLDAP to configure a corporate organizational structure through OpenLDAP.

Fast way to update Bash on Debian based distributions to secure it against Shell Shock.

Fast way to update Bash on Debian based distributions to secure it against Shell Shock. 

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