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+Long: connect-to
+Arg: <HOST1:PORT1:HOST2:PORT2>
+Help: Connect to host
+Added: 7.49.0
+See-also: resolve header
+---
+
+For a request to the given HOST:PORT pair, connect to
+CONNECT-TO-HOST:CONNECT-TO-PORT instead. This option is suitable to direct
+requests at a specific server, e.g. at a specific cluster node in a cluster of
+servers. This option is only used to establish the network connection. It
+does NOT affect the hostname/port that is used for TLS/SSL (e.g. SNI,
+certificate verification) or for the application protocols. "host" and "port"
+may be the empty string, meaning "any host/port". "connect-to-host" and
+"connect-to-port" may also be the empty string, meaning "use the request's
+original host/port".
+
+This option can be used many times to add many connect rules.