Plan TCP/IP security

TCP/IP (Transmission Control Protocol/Internet Protocol) is a common way that computers of all types communicate with each other.

TCP/IP applications are well-known and widely used throughout the Internet. This topic provides tips for the following:

Preventing TCP/IP applications from running on your system.
Protecting system resources when you allow TCP/IP applications to run on your system.

SecureWay describes security considerations when you connect your iSeries™ server either to the Internet (a very large TCP/IP network) or to an intranet. Keep in mind that iSeries servers support many possible TCP/IP applications. When you decide to allow one TCP/IP application on your system, you may also be enabling other TCP/IP applications. As security administrator, you need to be aware of the range of TCP/IP applications and the security implications of these applications.

TCP/IP security components
You can take advantage of several TCP/IP security components that enhance your network security and add flexibility.
Secure your TCP/IP environment
This topic provides general suggestions for steps that you can take to reduce the security exposures in the TCP/IP environment on your system.
Use the Secure Shell to secure your applications
You can set up the Secure Shell (SSH) to ensure the security of applications that run on the TCP/IP network.

Parent topic: Plan your security strategy