Security

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Blocking IP Addresses Of Any Country With iptables

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.

How To Configure Apache To Use Radius For Two-Factor Authentication On Ubuntu

How To Configure Apache To Use Radius For 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 8.1. A previous article described how to add two factor authentication to apache on Fedora. Interestingly, a patch has been created to update mod_auth_radius to work with Apache 2.2+, however, it has only been updated for Debian and Ubuntu. For Fedora and other RedHat flavors of Linux, it is recommended that you use mod_auth_xradius.

Samba + Clamd + Samba-Vscan On CentOS 5.2

Samba + Clamd + Samba-Vscan On CentOS 5.2

This is a howto on getting samba + clamav + samba-vscan to work on a CentOS 5.2 system.

Setting Up ProFTPd + TLS On Ubuntu 8.10 (Intrepid Ibex)

Setting Up ProFTPd + TLS On Ubuntu 8.10 (Intrepid Ibex)

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 8.10 server.

Installing ISP-fw (Firewall) On Linux

Installing ISP-fw (Firewall) On Linux

ISP-fW is a firewall script that provides port forwarding, packet filtering, stateful packet inspection, port redirection, masquerading, SNAT/ DNAT, TOS, and never the last it generates htb rules for bandwidth management. With ISP-fw, you can turn a PC into a gateway with shaping capabilities.

Preventing MySQL Injection Attacks With GreenSQL On Debian Etch

Preventing MySQL Injection Attacks With GreenSQL On Debian Etch

GreenSQL (or greensql-fw) is a firewall for MySQL databases that filters SQL injection attacks. It works as a reverse proxy, i.e., it takes the SQL queries, checks them, passes them on to the MySQL database and delivers back the result from the MySQL database. It comes with a web interface (called greensql-console) so that you can manage GreenSQL through a web browser. This guide shows how you can install GreenSQL and its web interface on a Debian Etch server.

Ultimate Security Proxy With Tor

Ultimate Security Proxy With Tor

Nowadays, within the growing web 2.0 environment you may want to have some anonymity, and use other IP addresses than your own IP. Or, for some special purposes - a few IPs or more, frequently changed. So no one will be able to track you. A solution exists, and it is called Tor Project, or simply tor. There are a lot of articles and howtos giving you the idea of how it works, I'm not going to describe here onion routing and its principles, I'll rather tell you how practically pull out the maximum out of it.

Firewall Management With Gufw On Ubuntu 8.04

Firewall Management With Gufw On Ubuntu 8.04

Gufw is a graphical frontend for managing an iptables firewall on an Ubuntu 8.04 desktop. It is based on ufw and enables you to allow or block pre-configured, common p2p, or individual ports. This guide shows how you can install and use Gufw on Ubuntu 8.04.

Secure SSH Using WiKID Two-Factor Authentication And TACACS+

Secure SSH Using WiKID Two-Factor Authentication And TACACS+

These instructions are designed to help you configure and test using the WiKID TACACS+ protocol module via Linux PAM on Red Hat. This document has been updated to cover pam .99 and higher. We assume that you have already installed the open-source WiKID Strong Authentication Server Community Edition.

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