Posts tagged security
3 posts · all posts
What was uploading my data at night? Hunting Android’s mystery UID -253
An unidentified uid:-253 was uploading megabytes of data from my phone every night. Here's how I traced Android's undocumented negative UID to Google's backup service.Expanding the TOR Transparent Gateway: Multiple LANs, Routing, and a CTF Playground
Previously I built an Alpine-based TOR transparent gateway for a single network that forced all traffic from the network out over TOR. It worked, but it was klunky became:
- It was a weird setup in that it existed in the same network as the actual router. It had a
.2address and the real router just kinda sat there silenty in the same room with the.1address. - Because of the way it was setup, it required asymetric routing if I wanted to access things inside the network from outside.
- It was an all or nothing approach (i.e. all traffic from that network exited via TOR)
- It only allowed one subnet.
- It was a weird setup in that it existed in the same network as the actual router. It had a
Creating a network with a TOR transparent Gateway
I wanted to build myself a network that didn't look like it was my home network. In particular I wanted it to be able to exit somewhere else rather then my home network.