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Removing Signatures From Various Packages
This tutorial shows you how to remove the Debian signature/version info from packages such as Apache, Postfix or SSH. There are various reasons to remove the signature (and therefore hide that you are using Debian/a specific version). The most important one is about security. When a hacker knows the distro you are using, he can search for well-known security issues and start an attack against them. If he doesn't know the distro in use, chances to not find any security holes are much larger.
How To Add WiKID Two-Factor Authentication To OpenVPN Community On Ubuntu 13.04
These instructions describe setting up two-factor authentication with WiKID Strong Authentication, which is a commercial/open source two-factor authentication system and OpenVPN, an SSL-encrypted VPN, on an Ubuntu 13.04 Linux server using the Radius Pluggable Authentication Module. First, we will configure PAM to use Radius, then we will configure OpenVPN to use PAM and one-time passwords, then we will create a network client on the WiKID server for OpenVPN. We won't go into specifics about installing these services, rather we will focus on configuring them to all work together.
Secure ISPConfig 3 And Services With GoDaddy Signed Certificate On CentOS
Let's set up a signed certificate from GoDaddy for the ISPConfig control panel, Pure-FTPD, Postfix, Dovecot, phpMyAdmin, and Squirrelmail. Don't forget to replace pluto.example.com with your own FQDN throughout this entire section!
Securing SSH On Ubuntu Precise With WiKID Two-Factor Authentication
SSH offers a highly secure channel for remote administration of servers. However, if you face an audit for regulatory or business requirements, such as Visa/Mastercard PCI, you need to be aware of some potential authentication related short-comings that may cause headaches in an audit. In this document we are going to demonstrate how to combine two-factor authentication from WiKID on Ubuntu. This document will also serve as the basis for additional tutorials because many services on Linux use PAM for authentication.
How To Configure Apache To Use Radius For WiKID Two-Factor Authentication On Ubuntu
This document describes how to add WiKID two-factor authentication to Apache 2.x using mod_auth_radius on Ubuntu 12.04 Precise. It is recommended that you consider using mutual https authentication for web applications that are worthy of two-factor authentication. Strong mutual authentication means that the targeted website is authenticated to the user in some cryptographically secure manner, thwarting most man-in-the-middle attacks. The use of cryptography is key. While some sites use an image in an attempt to validate a server, it should be noted that any man-in-the-middle could simply replay such an image.
Setting Up ProFTPd + TLS On Ubuntu 12.10
FTP is a very insecure protocol because all passwords and all data are transferred in clear text. By using TLS, the whole communication can be encrypted, thus making FTP much more secure. This article explains how to set up ProFTPd with TLS on an Ubuntu 12.10 server.
Encrypt Your Data With EncFS (OpenSUSE 12.3)
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 OpenSUSE 12.3 to encrypt your data.
How To Run LinOTP On OpenSuSE 12.3 With PostgreSQL
This tutorial describes the installation of LinOTP on OpenSUSE 12.3 using PostgreSQL as a token database. LinOTP is a two factor authentication solution with One Time Passwords. In the following Howto we are showing how to enable SSH authentication with LinOTP.
How To Do Mass Enrolling Of Yubikey With LinOTP
When it comes to two factor authentication Yubikeys are very in vogue. They are small, they have a very small footprint on your keychain and are easy to handle as they need no driver and authentication is as easy as touching a button. This howto shows, how you can use the open source LinOTP to enroll many Yubikeys to the LinOTP server.
How To Integrate ClamAV Into PureFTPd For Virus Scanning On Fedora 18
This tutorial explains how you can integrate ClamAV into PureFTPd for virus scanning on a Fedora 18 system. In the end, whenever a file gets uploaded through PureFTPd, ClamAV will check the file and delete it if it is malware.
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