Nodeでproxy

install.sh

npm install http-proxy

proxytable.js

var httpProxy = require('http-proxy');
httpProxy.createServer({
  router: {
    'www.example.com': 'localhost:8000',
    'foo.example.com': 'localhost:8001',
    'bar.example.com': 'localhost:8002',
    'example.com': 'localhost:8000'
  }
}).listen(80);

startproxy.sh

sudo -s
node proxytable.js