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@gmurdocca
gmurdocca / socat_caesar_dpi.md
Last active January 22, 2024 05:08
Circumventing Deep Packet Inspection with Socat and rot13

Circumventing Deep Packet Inspection with Socat and rot13

I have a Linux virtual machine inside a customer's private network. For security, this VM is reachable only via VPN + Citrix + Windows + a Windows SSH client (eg PuTTY). I am tasked to ensure this Citrix design is secure, and users can not access their Linux VM's or other resources on the internal private network in any way outside of using Citrix.

The VM can access the internet. This task should be easy. The VM's internet gateway allows it to connect anywhere on the internet to TCP ports 80, 443, and 8090 only. Connecting to an internet bastion box on one of these ports works and I can send and receive clear text data using netcat. I plan to use good old SSH, listening on tcp/8090 on the bastion, with a reverse port forward configured to expose sshd on the VM to the public, to show their Citrix gateway can be circumvented.

Rejected by Deep Packet Inspection

I hit an immediate snag. The moment I try to establish an SSH or SSL connection over o

@DeanPDX
DeanPDX / Windows 10 - Using Git Bash With TMUX.md
Last active April 7, 2024 07:55

Windows 10 - Using Git Bash With TMUX

Why Not Use WSL?

I tried the WSL and it isn't quite seamless enough for me. I ran in to problems when editing in VSCode and having watchers on my files (ng serve, dotnet watch run, etc.). In addition, I kept running in to problems that only manifest themselves when running in WSL. For example, this issue with doing production builds and the terser plugin has made many a developer rage-quit on using WSL. Just figuring out that it was an issue with the WSL took a lot of time.

That terser plugin issue was never resolved and I ended up having to keep a git bash window open in addition to my WSL console window so I could do production builds. To make matters worse, my npm packages were platform-dependent so I couldn't use the same project folder. So, my procedure was: commit whatever changes to test branch, push to repo, git pull on my "windows" project folder, and do a production build there

@CoryBloyd
CoryBloyd / SDLblit.cpp
Last active March 27, 2024 22:34
Minimal code to set up a window in SDL and blit from CPU RAM to the window
// This work (SDLblit.cpp, by Cory Bloyd) is free of known copyright restrictions.
// https://creativecommons.org/publicdomain/zero/1.0/
#include <SDL.h>
inline uint32_t argb(uint8_t a, uint8_t r, uint8_t g, uint8_t b) { return (a<<24) | (r << 16) | (g << 8) | (b << 0); }
int main(int argc, char *argv[]) {
SDL_Init(SDL_INIT_VIDEO);
SDL_Rect screenRect = { 0,0,1024,1024 };
@Shy07
Shy07 / switch-eshop.md
Last active April 21, 2024 07:19
Nintendo Switch eShop API