Linux Playgrounds

Remote sandboxes for learning and experimentation — fresh Linux VMs, Docker hosts, or Kubernetes clusters in seconds.

Playground on  Networking, Linux

TCP Proxies: Client, Proxy, and Server

Three Ubuntu VMs for direct TCP connections, byte relaying, and modifying proxies.

Playground on  Linux, Programming

Linux Kernel Hacking

Minimal environment for compiling and testing the Linux kernel with GCC, Clang/LLVM, Clangd, and QEMU.

Playground on  Linux, Programming
Playground on  Linux, Networking, Observability

Ubuntu eBPF

Experimental playground with out of the box eBPF support through BTF