How does traffic flow to a web server whenever a web page is accessed?

1. User Accessing websitesay: www.gunnalag.com
2. Web Page Reaches Internet
3. On internet, ISP (say: GoDaddy.com) hosting thatdomain (say: gunnalag.com) forwards it to registeredname servers for that domain (say: ns.gunnalag.com)on public IP Address
4. Request comes to the Firewall (Say Cisco ASA or CheckPoint’s)hosted in DMZ. Firewall performs NAT (Public to Private) and RoutingBlocks any unintended or dis-allowed traffic
5. Load Balancer (say F5 or Foundry), which acts as switch/router,redirects traffic to available free systems based on Public and Private IPsbinded for load balancing.Blocks any unintended and disallowed traffic on ports
6. DNS server (say ns.gunnalag.com) resolves the requesteddomain/host names to private names and IP addressesThis usually be a unix based BIND running systemHere it gets IP of www host in gunnalag.com DNS domain
7. Web server named www It can be IIS, Apache Tomcat, Websphere

PDF File:

Online version: http://www.diagram.ly/?share=#mN0Sdi0rUBiQQax8wJAZ0Adwm0yabDbiM1CVCIv5QPqOxIJGFD