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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.

Improve Spam abuse protection in dovecot by restricting access to mail accounts by IP address (e. g. with ISPConfig 3)

Improve Spam abuse protection in dovecot by restricting access to mail accounts by IP address (e. g. with ISPConfig 3)

This howto will show you how to add ip restrictions to single mail accounts when using dovecot with MySQL.

This is especially useful if you need to access a mail account from only one single ip or a few ips or if you want to block specific ip addresses from accessing the mail account (e. g. due to spam abuse).

Data recovery from accidentally deleted files or crashed drives in Redhat, CentOS and Fedora Linux

Data recovery from accidentally deleted files or crashed drives in Redhat, CentOS and Fedora Linux

This tutorial will help you to recover data from accidentally deleted data from Linux-file systems. This is a very drastic mistake by any user/admin which costs for huge penalties. This script will be a boon for newbies/expert for data management. I will be using TestDisk for data-recovery. Here I have simplified the task with the help of a script.

Script for converting Outlook pst to Thunderbird/Evolution compatible format on Linux

Script for converting Outlook pst to Thunderbird/Evolution compatible format on Linux

This tutorial will show how to convert Outlook PST into Thunderbird/Evolution compatible SBD format. For this  I have created a script for the conversion format.This will work in Debian/Ubuntu/CentOS too!

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