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Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 11.04)

Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 11.04)

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 (Courier-POP3, Courier-IMAP), 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.

Adding Two-Factor Authentication To JOSSO

Adding Two-Factor Authentication To JOSSO

WiKID Systems recently partnered with Atricore, the makers of JOSSO an enterprise-class SSO application. Both two-factor authentication and single sign-on have historically been expensive and complex affairs. Atricore and WiKID have both been addressing these issues by releasing easy-to-use, open-source software. These efforts merged when Atricore added native support for the WiKID Strong Authentication to their product JOSSO. In this tutorial you will see how easy it is to add two-factor authentication to JOSSO, creating a secure, easy-to-use solution for organizations needing SSO. JOSSO supports a wide variety of services including Tomcat, jBoss, Apache, IIS, Liferay, Weblogic, and Alfresco as well as cloud services such as Google Apps, Salesforce and SugarCRM. WiKID for its part supports Radius, LDAP and TACACS+ in addition to having an API. WiKID Software tokens run on Linux, Mac, Windows, iPhone, Android, J2ME and others.

Securing SSH On Ubuntu With WiKID Two-Factor Authentication

Securing SSH On Ubuntu 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. First, we will configure a domain on the WiKID server, then add the  targeted server as network clients to the WiKID server, and finally configure the Ubuntu box via pam-radius.

How To Use FreeRADIUS With LinOTP 2 To Do Two Factor Authentication With One Time Passwords

How To Use FreeRADIUS With LinOTP 2 To Do Two Factor Authentication With One Time Passwords

This howto will guide you to set up RADIUS authentication with the LinOTP 2 Community Edition. LinOTP is a one time password backend that enables you to do two factor authentication with a broad variety of different hardware devices, software tokens and SMS. While the Enterprise Edition comes with a C module for the FreeRADIUS Server, the Community Edition, that is licensed under the AGPLv3 does not. Nevertheless, LinOTP provides very simple WEB APIs that makes it easy to talk to LinOTP in many different ways.

Importing iptables Configurations Into Firewall Builder

Importing iptables Configurations Into Firewall Builder

Firewall Builder is a firewall configuration and management GUI that supports configuring a wide range of firewalls from a single application. Supported firewalls include Linux iptables, BSD pf, Cisco ASA/PIX, Cisco router access lists and many more. Import of existing iptables configurations was greatly improved in the recently released Firewall Builder V4.2. Features like object de-duplication and expanded rules recognition make it even easier to get started using Firewall Builder to manage your iptables configurations.

Setting Up A Spam-Proof Home Email Server (The Somewhat Alternate Way) (Debian Squeeze)

Setting Up A Spam-Proof Home Email Server (The Somewhat Alternate Way) (Debian Squeeze)

Email spam is a huge problem. I have found for myself quite a simple solution, however it'll take some time to "migrate" completely over to it. The solution is to create a unique email address everytime I have to give an email address to someone else or to some website to sign up. If I want an account at twitter, I'd use "www.twitter.com@MYDOMAIN.COM". For webbased services, I use the full domain name incl. subdomain (www) on the left of the @ (some poorly designed websites do not recognizes the www. as valid email address, for those I just leave it away).

How To Integrate ClamAV Into PureFTPd For Virus Scanning On Fedora 14

How To Integrate ClamAV Into PureFTPd For Virus Scanning On Fedora 14

This tutorial explains how you can integrate ClamAV into PureFTPd for virus scanning on a Fedora 14 system. In the end, whenever a file gets uploaded through PureFTPd, ClamAV will check the file and delete it if it is malware.

How To Configure PureFTPd To Accept TLS Sessions On Fedora 14

How To Configure PureFTPd To Accept TLS Sessions On Fedora 14

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 configure PureFTPd to accept TLS sessions on a Fedora 14 server.

How To Secure Your Ubuntu 10.10 Desktop With LinOTP 2

How To Secure Your Ubuntu 10.10 Desktop With LinOTP 2

This howto will guide you to set up a LinOTP standalone one time password authentication backend on your Linux machine. This enables you to add two factor authentication with one time passwords to your desktop login. LinOTP is a modular OTP (one time password) solution, that supports many different OTP tokens. LinOTP is written in python, based on pylons and apache. It comes as open source licensed under the AGPLv3. Additional functionalities, maintenance and support can be licensed in an Enterprise Edition. This howto should run on Ubuntu 10.10 and Debian Squeeze.

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