【Apache】Proxy & Use Expressions To Restricted Access

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Goal

  1. 80 port proxy to 8080 port. If work, will show ‘proxy’
  2. http://localhost:8080 can’t access, must return 404.
    • Use <If "%{SERVER_PORT} != '80'"> Redirect 404 / </If>

Repo & Env Set

source code : https://github.com/jhaoheng/apacheProxy&UseExpressions

  1. docker-compose up -d && docker exec -it ubuntu /bin/bash
  2. apt-get update
  3. apt-get install -y libapache2-mod-proxy-html libxml2-dev apache2 build-essential
  4. Proxy Modules
    • a2enmod proxy proxy_http proxy_ajp rewrite proxy_balancer proxy_connect proxy_html xml2enc

Steps

ref ./default.conf & ports.conf

step1 : enable port 8080

  1. update ports.conf in the ‘/etc/apache2/ports’
  2. Listen 8080

step2 : set VirtualHost

  • echo "proxy" > /var/www/proxy/index.html
  • set VirtualHost ```

<VirtualHost *:8080> ServerName localhost DocumentRoot /var/www/proxy/ </VirtualHost>

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## step3 : set proxy

Proxy

ProxyRequests Off ProxyPass / http://localhost:8080 ProxyPassReverse / http://localhost:8080 ProxyPreserveHost On

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## step4 : restricted direct connect localhost:8080

> Write below into `<VirtualHost *:8080> ... </VirtualHost>`

AllowCONNECT 80 <If “%{SERVER_PORT} != ‘80’”> Redirect 404 / </If> ```

  • Expressions in Apache HTTP Server
    • https://httpd.apache.org/docs/current/expr.html

step5 : restart & check it

  • apache2ctl restart
  • http://localhost:80, will show ‘proxy’
  • http://localhost:8080, be restricted to access