1. Running port 8080 but accessing through port 80

    I run CherryPy on port 8080 with no root privilege. On the server, I also need to support access to port 80.

    Thus, I create a file named under /etc/network/if-up.d.

    # cat > /etc/network/if-up.d/system-iptables
#!/bin/sh
if [ $METHOD = "loopback" ]; then
  iptables -t nat -A PREROUTING …
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