Hello, I created two VMs in the VirtualBox. One of them is Reverse Proxy server and another one is Apache Web Server. The specifications of VM1 (Reverse Proxy) are as follows: NIC 1 is NAT and Its IP address is "10.0.3.15". NIC 2 is Internal Network and its IP address is "192.168.1.3". The specifications of VM2 (Apache Web Server) are as follows: It has one NIC and its IP address is "192.168.1.4". Both VMs can see each other. I installed Apache Web Server on the both machines and opened ports 80 and 443 via Firewalld on them: # firewall-cmd --list-all FedoraServer (active) target: default icmp-block-inversion: no interfaces: enp0s3 sources: services: cockpit dhcpv6-client ssh ports: 80/tcp 443/tcp protocols: masquerade: no forward-ports: source-ports: icmp-blocks: rich rules: My goal is: The Internet --> Reverse Proxy (VM1) --> Apache Web Server (VM2) On the VM1, I did: # curl http://192.168.1.4 <html> <head> <title> This my server. </title> </head> <body> <p> Apache Server. </p> </body> </html> And as you see, it can see VM2 Apache Web Server. On the VM1, I created a Virtual Host configuration file as below: # touch /etc/httpd/conf.d/reverse.conf # nano /etc/httpd/conf.d/reverse.conf And fill it with below lines: <VirtualHost *:80> ProxyPreserveHost On ProxyPass / http://192.168.1.4/ ProxyPassReverse / http://192.168.1.4/ </VirtualHost> Then restarted the Apache Web Server. When I entered VM1 IP address, then I must see the VM2 "index.html" file, but I see below error: Service Unavailable The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later. Why? Thanks. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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