Add the following to /etc/pf.anchors/myname:
// 以前は port {80 8080} -> 127.0.0.1 port 8080 みたいな書き方が出来たけどEl Capitanから無視される?ようなので注意
rdr pass on lo0 inet proto tcp from any to any port 80 -> 127.0.0.1 port 4000
rdr pass on lo0 inet proto tcp from any to any port 443 -> 127.0.0.1 port 4001Add the following to /etc/pf-myname.conf:
rdr-anchor "forwarding"