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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 Quickly Get A List Of All Applications Installed On Your UNIX/Linux Machines

How to quickly get list of all applications installed on your UNIX/Linux machines

In this tutorial I'll try to present how to quickly get the list of all applications installed on UNIX/Linux hosts. The procedure applies to the most popular UNIX/Linux distributions but is also applicable to windows hosts and some other hardware (e.g. firmware version on routers etc.). The procedure could help you track your software inventory and get notifications whenever users install/uninstall applications on their machines.

Hybrid RAID 1 (Mirror) of RAM drive & SATA HDD Using LVM with LUKS [and systemd unit file] on Fedora Linux

Hybrid RAID 1 (Mirror) of RAM drive & SATA HDD Using LVM with LUKS [and systemd unit file] on Fedora Linux

The IT industry has a continual balance between security and usability. Within this balance, performance usually affects usability. In the realm of protecting "Data at Rest" (i.e. encryption) one may find three factors affecting performance, and therefore usabilty: The harddrive, CPU and RAM. Of these, the harddrive will always prove to be a bottleneck (yes, even with an SDD).

Free Software has a rather elegant solution for protecting Data at Rest, called Linux Unified Key Setup (LUKS). In the spirit of "Freedom 0: The freedom to run the program for any purpose." please enjoy my contribution to our collective knowledgebase of a solution to the fascinating problem of "how can we speed up encyption"?

Thunderbird Email Encryption with GnuPG2

Thunderbird Email Encryption with GnuPG2

This tutorial describes the configuration of Thunderbird and GnuPG2 to send and receive encrypted email.

Howto add two factor authentication to OTRS with privacyIDEA

Howto add two factor authentication to OTRS with privacyIDEA

In this howto we will show, how easy it is to add two factor authentication with OTP token to OTRS. This is done for the support agents to protect support cases and customer data against attackers and misuse. Nevertheless this can be done for the customers in the very same way.

Installing Guest Additions And Mounting Shared Folders In Virtualbox Virtual Machines In PHPVirtualbox

Installing Guest Additions And Mounting Shared Folders In Virtualbox Virtual Machines In PHPVirtualbox   

In this tutorial I will introduce some tips & tricks while using the phpvirtualbox. These tricks make phpvirtualbox functionality better & much more fruitful.
I do not issue any guarantee that this will work for you!

Implementing SSL Perfect Forward Secrecy in NGINX Web-Server

Implementing SSL Perfect Forward Secrecy in NGINX Web-Server

This HOW-TO describes the process of implementing Perfect Forward Secrecy with the NGINX web-server on Debian and Ubuntu systems. The process can readily be adapted to other GNU/Linux systems.

Virtual Hosting With PureFTPd And MySQL (Incl. Quota And Bandwidth Management) On Fedora 20

Virtual Hosting With PureFTPd And MySQL (Incl. Quota And Bandwidth Management) On Fedora 20

This document describes how to install a PureFTPd server that uses virtual users from a MySQL database instead of real system users. This is much more performant and allows to have thousands of ftp users on a single machine. In addition to that I will show the use of quota and upload/download bandwidth limits with this setup. Passwords will be stored encrypted as MD5 strings in the database.

Installing Apache2 With PHP5 And MySQL Support On Fedora 20 (LAMP)

Installing Apache2 With PHP5 And MySQL Support On Fedora 20 (LAMP)

LAMP is short for Linux, Apache, MySQL, PHP. This tutorial shows how you can install an Apache2 webserver on a Fedora 20 server with PHP5 support (mod_php) and MySQL support.

How to find out if your server is affected from Openssl Heartbleed vulnerability (CVE-2014-0160) and how to fix that

How to find out if your server is affected from Openssl Heartbleed vulnerability (CVE-2014-0160) and how to fix that

A severe vulnerability in OpenSSL has been found, the vulnerability is named Heartbleed and affects the heartbeat implementation in Openssl version 1.0.1 up to version 1.0.1f. This velnerability can be used to get the private key of a SSL connection, so it is important to update the server immediately. The bug is fixed in OpenSSL 1.0.1g. All Major Linux Distributions have release updates to the vulnerability.

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