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In this quick tutorial I would like to share with the community a method to get two public IP addresses on a single Amazon EC2 instance for FREE (i.e. without paying extra for that second IP). Some of you may already know this trick. This is useful if you run multiple SSL sites on an instance...

Quoting Dynamoo's Blog: The nameservers for the following dynamic DNS domains belonging to no-ip.com may have been seized by Microsoft as the namesevers are pointing to NS7.MICROSOFTINTERNETSAFETY.NET and NS8.MICROSOFTINTERNETSAFETY.NET This seems to have had the effect of taking down any...

As a dedicated server or Virtual Private Server (VPS) owner, one of the important tasks is to defend against online attacks. In this tutorial I will discuss how to use IPset with dynamic blocklists to better secure your server. IP sets are a framework inside the Linux kernel, administered by the...

I have just updated my tutorial on how to install Ghost blog 0.4.2 on Ubuntu 14.04 (Trusty) or 12.04 (Precise), with Nginx as a reverse proxy and the ModSecurity web application firewall. The following extra topics are also covered (via links to original posts where appropriate): Example...

A quick tutorial on how to enable extra IPTables functionality such as geoip, port scan detection, port knocking and "tarpit" using the "xtables-addons" package. Full list of available modules can be found here. Note 1: Does NOT work on OpenVZ VPS (unless the host node provides the modules).  ...

Hello all, I have taken the time to compile a list that summarizes recent malware caught in my Kippo SSH Honeypot. The honeypot was deployed on servers at multiple locations. Attackers downloaded these files after breaking into the honeypot, and tried to run them immediately. Therefore, they...

Hello guys, here is my tutorial for setting up "SSHFS" to create shared folder(s) among your VPS. We will be using "autossh" which has the nice "automatic reconnect" capability whenever the link goes down. Also implemented are settings such as "chroot" and "key use restrictions" which will...

Hello all, I have created two Github Gists for detailed step-by-step instructions on installing the latest Ghost Blog with Nginx and ModSecurity or Naxsi. Blogging is a good way to utilize any idle VPS you have! The instructions have been successfully tested on Ubuntu 12.04 LTS Server (freshly...

Hello guys, I have created a fully automated ("one-click") IPsec/L2TP VPN install script for Ubuntu 12.04. My script was inspired by and is based on the work of Thomas Sarlandie (original post), that I took time to improve by replacing Openswan with Libreswan, which is more actively developed...