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+# socat
+
+> Multipurpose relay (SOcket CAT).
+
+- Listen to a port, wait for an incoming connection and transfer data to STDIO:
+
+`socat - TCP-LISTEN:8080,fork`
+
+- Create a connection to a host and port, transfer data in STDIO to connected host:
+
+`socat - TCP4:www.domain.com:80`
+
+- Forward incoming data of a local port to another host and port:
+
+`socat TCP-LISTEN:80,fork TCP4:www.domain.com:80`