Content

| 7.4 |  | Troubleshooting TCP/IP Application Layer Problems |
| 7.4.2 |  | Troubleshooting HTTP problems |

Problems with HTTP connectivity can be hard to narrow down. Although Web browsers are not the greatest utilities for detailed troubleshooting of the HTTP protocol, they are nonetheless useful for determining whether clients on an Internet may connect to a specific Web server. Even if a Web server responds correctly to HTTP commands using the Telnet utility, this fact does not guarantee that it will accomplish its goal of serving Web pages to the Internet public. For this, the only choice is to connect to the Web server by using a popular Web browser.

When managing Web servers, it is a good idea to keep a variety of different Web browsers on hand. All Web servers and Web pages should be tested with both Netscape Navigator and Microsoft Internet Explorer.

Be sure to try accessing the Web server from various hosts to eliminate individual computer browser problems.

The following commands make router configuration changes that troubleshooters can use to correct problems with Web protocols at the application layer.