Troubleshooting problems related to specific applications

If you know that your problem lies within a specific application, use this information to troubleshoot the specific application.

If you have determined that your problem lies within a specific application that you are running on TCP/IP, then select the application for detailed troubleshooting information. If you do not find the application in the list, perform a search for the application you need. Then, use the troubleshooting information provided there.

The following information might help you understand troubleshooting problems related to specific applications.
Domain Name System
This topic provides a flow chart for problem analysis and guides you through debugging strategies for Domain Name System (DNS) problems.
File Transfer Protocol
This topic suggests solutions for File Transfer Protocol (FTP) problems and demonstrates the server job log as a troubleshooting tool.
Point-to-Point Protocol
This topic offers solutions to common Point-to-Point Protocol (PPP) connection problems.
Post Office Protocol
This topic helps troubleshoot the Post Office Protocol (POP) server and other e-mail applications.
Remote Execution
This topic provides a flow chart to help you identify the Remote Execution (REXEC) problem and to find potential solutions.
Simple Mail Transfer Protocol
This topic provides several methods for solving problems with Simple Mail Transfer Protocol (SMTP) and other e-mail applications.
Telnet
This topic assists you with general Telnet problems as well as specific problems related to the emulation type and to the SSL server. In addition, find out what information is necessary for reporting the problem.
Virtual private networking
This topic guides you through several troubleshooting strategies for Virtual private networking (VPN) problems related to connection, configuration errors, filter rules, and more.