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How to log on to Windows without hitting the logon screen ... Read More

If you desperately need an SSL certificate signed by a publicly trusted CA, and you want it for free, Let’s Encrypt is certainly an option. They are valid for 3 months, and even though linux boxes are equipped to request ... Read More

I'm sure you have faced a situation at some point when you needed to RDP in to a client machine but without any luck. That is because the computer must have not had the RDP connections enabled. Even though the ... Read More

To make use of a trunk interface connected to our linux box with a single interface we can configure subinterfaces accessing specific VLAN segments, here we will use Debian and RHEL, assigning two subinterfaces, to each, on will use DHCP ... Read More

I’ve come across a company this week, while sorting the SSL certificate on their RRAS server I noticed that all of their nodes had 192.169.0.0/24 IP addresses assigned in their network. When I asked them about why they were using ... Read More

Recently I came across a situation where a small office needed a direct IPSec tunnel between two offices temporarily, but they only had a router from their ISP which was not configurable, or at least not by them and they ... Read More

Time to time we can face the problem that our storage is running out of space on our Linux box. Now what options do we have? We can attach a new storage to the system and mount it in the ... Read More

Text Mode Many times it is preferable to run the CentOS linux installer in text mode, avoiding the GUI. For instance when using an older machine with less resources or when deploying a VM when console access might be limited, ... Read More

Another interesting topic. First of all, what is an egghunter? You will encounter a scenario sooner or later when you can use a buffer overflow condition to execute your code on a target, but the memory space for that is ... Read More

Hopefully you have read my post about bind shells that covered a lot of basics which is really important to understand how these codes work. However, compared to bind shells reverse shells tend to be much more popular, because of ... Read More

After the long intro, let’s just jump into it! First of all, this set of articles that are dealing with shellcodes written for linux machines running on 32bit CPU architecture (we’ll talk about the differences between 32bit and 64bit architectures ... Read More

These days it’s a common scenario to see a company acquiring another, and having both organizations hosting their email service in the cloud using Office 365. Unfortunately Microsoft doesn’t provide us with easy to use tools - and ways - ... Read More