"ssh" tag
Nginx also likes to throw a 403 error and close the connetction

Methods To Lock Down WordPress wp-admin, and Accessing it Using SOCKS5 Proxy

It’s as simple as this: have SSH listen on the standard port 22, and when you check your server logs, you see all sorts of random people trying to login to your server….

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…

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)…

Syn Flooding

SYN Flooding using SCAPY and Prevention using iptables

DoS (Denial of Service) attacks against Web services make them unavailable for legitimate users, affecting the website owner’s potential business. These involve intentional consumption of network, CPU and memory resources. In this article,…

Time to rsync

Backups and More with rsync

Learn how to use this powerful utility that almost all experts use in their day-to-day work, to perform tasks like back-ups, and much more. The rsync utility can be used cross-platform—Linux, Mac OS…

Droid time...

What All’s Possible with the Android Dual-SIM Smartphone — MediaTek MT6516

A dual-SIM smartphone manufactured in China runs Android 2.2.1 Froyo. Geeks always find noteworthy products based on Linux! Today, people are rarely surprised to see a dual-SIM phone. Phone manufacturers have been thinking…

Specify complex access controls with ease

Gitolite: Administer a Central Git Repository without Going Insane

Over the past few years, centralised version control systems like SVN have steadily given way to distributed systems like Git or Mercurial — the former undoubtedly the more powerful and popular of the…

Scan time!

Advanced Nmap: FIN Scan & OS Detection

Nmap is a fantastic tool, and I just can’t refrain from praising it, every time I use it. The earlier articles in this series have detailed many important Nmap scan types. Let us…

Android and SSH

Accessing a Home Laptop Remotely from Android

Consider this: You’re on vacation in the Maldives, when your office calls, with an urgent request for some files and information. These happen to be on your laptop, which is at home! If…

Because it's fun to code on GNU/Linux

Write Your Next Program on Linux

Quite a few colleges and schools still teach C/C++/Java programming on Windows — and even worse, on DOS (using Turbo C/C++)! GNU/Linux provides a first class operating system, replete with support for dozens…

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