"firewall" tag
Your First Site-to-Site VPN

Guard Your Network with IPCop, Part 5: Your First Site-to-Site VPN

The first article in this series discussed the basic installation and configuration of IPCop 1.4.21. Subsequent articles covered six important add-ons: Advanced Proxy, URL Filter, Update Accelerator, Calamaris, Block Outgoing Traffic and Zerina….

About time we guarded this network!

Guard Your Network with IPCop, Part 4: Configuring OpenVPN with Zerina Add-on

The first article in this series discussed the basic installation and configuration of IPCop 1.4.21. Subsequent articles discussed five important add-ons used to enhance IPCop’s functionality: Advanced Proxy, URL Filter, Update Accelerator, Calamaris…

Blocking outgoing traffic

Guard Your Network with IPCop, Part 3: Block Outgoing Traffic

The first article in the series discussed IPCop 1.4.21, its basic installation and configuration. Though an excellent firewall distro, basic IPCop has limited functionality. To enhance it, various add-ons are available. We covered…

Yet another kind of cyber attack, eh?

Cyber Attacks Explained: DNS Invasions

We often read about defaced websites whose pages get changed to some malicious content. How do hackers do it and how do we protect our infrastructure from them? This article is about how…

Preparing a Debian-based LEMP server

WordPress on Nginx, Part 1: Preparing VPS the Debian Way

In this first part, we deal with the LEMP (Linux, Nginx, MySQL, PHP) stack recipe and set up the basic server after installing the required packages. It started off thus: The theme developer…

IPCop Add-ons

Guard Your Network with IPCop, Part 2: Add-ons

A basic installation of IPCop provides minimum firewall functionality such as a proxy, compatibility with various Internet connections, port forwarding, IPSec VPN, etc. To convert it into a complete Unified Threat Management (UTM)…

Cyber Attack

Cyber Attacks Explained: Network Sniffing

In earlier articles in this series, we have explored denial of service attacks and packet spoofing. This month, let us focus on a wider hacking approach called network sniffing, which is very commonly…

The cop's patrolling

Guard Your Network with IPCop, Part 1: Installation Basics

The classic version of IPCop 1.4.20, which was released on July 24, 2008, was immediately upgraded to the 1.4.21 ISO installer. The much awaited version 2.0 has been out since September 23, 2011….

Marching packets

Cyber Attacks Explained: Packet Spoofing

Last month, we started this series to cover the important cyber attacks that impact critical IT infrastructure in organisations. The first was the denial-of-service attack, which we discussed in detail. This month, we…

Oops, am under attack, again!

Cyber Attacks Explained: DoS and DDoS

With this article, we begin a new series on the major kinds of cyber attacks that weaken the IT security infrastructure within organisations. With the rapid spread of Internet technologies and applications, the…

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