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Using Google Authenticator with SSH to Secure Your Servers

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This tutorial is about integrating the Google authentication mechanism in our servers to harden security. It guides readers on how to integrate Google authentication...

SSHFS: A Simple System for Working with Remote Directories

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In Linux, SSHFS or the SSH File System is used to mount and interact with directories and files that are located on a remote...

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

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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...

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

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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....

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

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A basic installation of IPCop provides minimum firewall functionality such as a proxy, compatibility with various Internet connections, port forwarding, IPSec VPN, etc. To...

SYN Flooding using SCAPY and Prevention using iptables

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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...

Backups and More with rsync

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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...

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

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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...

Gitolite: Administer a Central Git Repository without Going Insane

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Over the past few years, centralised version control systems like SVN have steadily given way to distributed systems like Git or Mercurial -- the...

Advanced Nmap: FIN Scan & OS Detection

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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...