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How To Integrate ClamAV Into PureFTPd For Virus Scanning On Ubuntu 12.10
This tutorial explains how you can integrate ClamAV into PureFTPd for virus scanning on an Ubuntu 12.10 system. In the end, whenever a file gets uploaded through PureFTPd, ClamAV will check the file and delete it if it is malware.
Encrypt Your Data With EncFS (Ubuntu 12.10)
EncFS provides an encrypted filesystem in user-space. It runs without any special permissions and uses the FUSE library and Linux kernel module to provide the filesystem interface. It is a pass-through filesystem, not an encrypted block device, which means it is created on top of an existing filesystem. This tutorial shows how you can use EncFS on Ubuntu 12.10 to encrypt your data.
Set Up DKIM (DomainKeys Identified Mail) Working With Postfix On CentOS Using OpenDKIM
This tutorial shows how to get DKIM working on a CentOS box running Postfix using OpenDKIM, I'll also cover some simple trouble shooting tips and advice for future upgrade on your OpenDKIM installation.
Blocking Facebook Web Trackers At The Firewall For Extra Privacy
If you've spent any time examining the network traffic to and from your web browser, you will notice the prolific number of trackers embedded in the pages. There are some add-ons to the web browsers that aid in privacy, but it is simple enough to block the rogue sites at the firewall.
Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 12.10)
This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier, so that Courier can authenticate against the same MySQL database Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. Passwords are stored in encrypted form in the database. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords.
How To Secure Apache2 With LinOTP
This Howto describes the way to set up two factor authentication with one time passwords for Apache2. We assume, that you have already set up your LinOTP server. You can download Debian and Ubuntu packages or you can install the system using the Python Package Index. It provides a good quick start to get the service up and running for demo purposes (check for the latest version).
How To Set Up OpenVPN To Authenticate With LinOTP
This howto will show you the way to set up OpenVPN to authenticate users against the LinOTP authentication backend. Thus you can bring up your VPN using two factor authentication with different kind of OTP tokens. The interesting part is, that we will also use client certificates, so that the VPN only gets established if the machine has the right client certificate and the user has the right OTP token.
How To Set Up An IPS (Intrusion Prevention System) On Fedora 17
Vuurmuur is a linux firewall manager. It takes a human readable rule syntax and turns it into the proper iptables commands. It supports logviewing, traffic shaping, connection killing and a lot of other features. Suricata is a relatively new network IDS/IPS. It's multithreaded for performance, supports IDS and IPS modes, can extract files from HTTP streams and has a lot of other features. Fedora 17 includes both Vuurmuur and Suricata in its repository. In this howto I'll describe how to get a functional IPS using only Fedora packages.
Chrooting Apache2 With mod_chroot On OpenSUSE 12.2
This guide explains how to set up mod_chroot with Apache2 on an OpenSUSE 12.2 system. With mod_chroot, you can run Apache2 in a secure chroot environment and make your server less vulnerable to break-in attempts that try to exploit vulnerabilities in Apache2 or your installed web applications.
Adding Two-Factor Authentication To OpenVPN AS With The WiKID Strong Authentication Server
Pairing WiKID with two-factor authentication and OpenVPN AS is a great cost-effective solution to secure your network for minimal expense. I downloaded the RPM Version of OpenVPN Access Server and dropped the RPM onto a Centos VM. I had previously configured a WiKID two-factor authentication server using our Enterprise ISO. The OpenVPN server configures itself on install and directs you to change the password for the openvpn user and directs you to the Openvpn AS web interface.