software catalog

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+---
+title: "socat"
+category: "Networking and remote access"
+tagline: "Connect any two data streams: sockets, ports, files or pipes."
+source: "pacman"
+package: "socat"
+command: "socat"
+website: "http://www.dest-unreach.org/socat/"
+---
+
+## What it is
+
+socat is a relay: it opens two connections and passes data between them in both directions. Either end can be a TCP or UDP port, a Unix socket, a file, a serial device or a program's input and output, which makes it a general tool for forwarding ports, testing network services and debugging sockets.
+
+```
+socat TCP-LISTEN:8080,fork TCP:localhost:3000     # forward port 8080 to 3000
+```
+
+## Why it's here
+
+- **Glue for networking.** Forward a port, expose a Unix socket over TCP, or the reverse.
+- **Debugging.** Talk to a service by hand to see what it sends.
+
+## On CoreDesktop
+
+socat is installed from pacman. CoreDesktop's AI agent sandbox uses it to connect Hermes Agent to its gateway through a local socket. Type `socat` in a terminal to use it yourself. `update` keeps it current with the pacman packages.