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Using Built-in Policy Installer in Firewall Builder
This article demonstrates how Firewall Builder can help you automate the process of deployment and activation of the generated firewall configuration. After firewall configuration has been generated by one of the policy compilers and saved in a file on disk in the format required by the target firewall, it needs to be transferred to the firewall machine and activated. This function is performed by the component we call "Policy Installer" which is part of the Firewall Builder GUI.
Chrooted SSH/SFTP Tutorial (Debian Lenny)
Since version 4.8, OpenSSH supports chrooting, so no patches are needed anymore. This tutorial describes how to give users chrooted SSH access. With this setup, you can give your users shell access without having to fear that they can see your whole system. Your users will be jailed in a specific directory which they will not be able to break out of. I will also show how to use chrooted SFTP.
Using Built-In Revision Control In Firewall Builder
Firewall Builder GUI has built-in revision control system that can be used to keep track of changes in the objects and policy rules. If data file has been added to the revision control system, every time it is saved, the system asks the user to enter a comment that describes changes done in the file in this session and stores it along with the data. The program also assigns new revision number to the data file using standard software versioning system whith major and minor version numbers separated by a dot. When you open this data file next time, the program presents a list of revisions alongside with dates and comments, letting you choose which revision you want to use. You can open the latest revision and continue working with the file from the point where you left off last time, or open one of the older revisions to inspect how the configuration looked like in the past and possibly create a branch in the revision control system. Here we take a closer look at the built-in revision control system.
Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Debian Lenny)
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. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords.
Groupware Server With Group-Office, Postfix, Dovecot And SpamAssassin On Debian Lenny (5.0)
In this howto I will explain how you can set up a groupware server using the Debian Linux operating system, Group-Office for managing the mailboxes and groupware functions like e-mail, shared calendars, file sharing etc., Postfix with virtual accounts in MySQL, Dovecot IMAP, SpamAssassin spam filter, and a vacation perl script that will handle out-of-office replies.
Getting Started With Firewall Builder
This guide presents an introduction to Firewall Builder. Firewall Builder (also known as fwbuilder) is a GUI firewall configuration and management tool that supports iptables (netfilter), ipfilter, pf, ipfw, Cisco PIX (FWSM, ASA) and Cisco routers extended access lists. Both professional network administrators and hobbyists managing firewalls with policies more complex that is allowed by simple web based UI can simplify management tasks with the application. The program runs on Linux, FreeBSD, OpenBSD, Windows and Mac OS X and can manage both local and remote firewalls.
How To Add Two-Factor Authentication To phpBB
This document describes how to add WiKID two-factor authentication to phpBB through Apache using mod_auth_xradius. Given the recent attack against phpBB and the exposure of it's users' passwords, we thought two-factor authentication might be timely.
Blocking IP Addresses Of Any Country With iptables
This article explains how you can block IP addresses of any country with the help of iptables.
Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Fedora 10)
This document describes how to install a mail server based on Postfix 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 (quota is not built into Postfix by default, I'll show how to patch your Postfix appropriately). Passwords are stored in encrypted form in the database (most documents I found were dealing with plain text passwords which is a security risk). 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.