When I wrote about Inter Process Communication, shared memory and signals I promised I’ll suggest an easier way of sending messages between process in a way that one of them gets notified. Shared memory and signals is great, but it wasn’t the right choice for my example. Today I’ll explain so-called Unix sockets and as […]
Tag: linux
Metasploitable Walkthrough – Part 3 – Java RMI and Post Exploitation Digging.
Another one of the Metasploitable series. This time I’ll try to exploit vulnerable RMI server. However, as I’ve taken a look at the exploit code, I’ve decided that I’m a bit lazy and I want to play around with Metasploit and since I had a few tricks to overcome I feel it might be worth […]
IPC examples – signals and shared memory
There are numerous ways programs can talk to each other. Modern operating systems provide decent isolation for security reasons, but programs must talk to each other this way or another. Today, after 2 articles on AWS, I’ll return to more generic IT topics. I’m going to describe 2 IPC (which stands for Inter Process Communication) […]
Hardware upgrades!
I’ve finally managed to upgrade my setup. I was hoping that I would be able to write a regular article, but due to the fact that I needed to return the monitor and waited for a week for another one, I still haven’t started writing it. Nonetheless I’d like to share with you what I’ve […]
Make use of htop
Or how to look cooler with htop Htop is a popular command-line tools for monitoring processes. It has some features that seem to be rarely used but could help you with process management or at least make your terminal look cooler. Help If you’ve ever wondered what do those weird colors on CPU and memory […]
A Very Different Hello World
How to write a shellcode in assembly to display “Hello, world?” After last week when I barely had time to scratch my head and I had to transfer my fiancee’s website to a different hosting (and finally learn something about how does the dns system work) I am back to coding for myself. I decided […]
Pentester Academy GDB challenge (kinda)
A few weeks ago I bough access to Pentester Academy labs to boost my skills, since I do not have solid background in countless fields, my job is mainly writing web applications with a little bit of devops tasks (read: I sometimes modify Dockerfiles) and I rarely have an opportunity to observe how “smart people” […]
How do libraries work? Part 3.
In previous two parts we’ve dealt with creating dynamic libraries on MacOS. Today we’re moving on to different system – Linux. I was planning to go with Windows, but running a web browser while using Virtualbox on my poor laptop is a nightmare and I think I will need to run my old laptop for […]