File: inetutils.info,  Node: Inetd Environment,  Next: Error Messages,  Prev: TCPMUX,  Up: inetd invocation

19.5 Inetd Environment
======================

If a connection is made with a streaming protocol ('stream') and if
'--environment' option has been given, 'inetd' will set the following
environment variables before starting the program:

'PROTO'
     Always 'TCP'.

'TCPLOCALIP'
     Local IP address of the interface which accepted the connection.

'TCPLOCALPORT'
     Port number on which the TCP connection was established.

'TCPREMOTEIP'
     IP address of the remote client.

'TCPREMOTEPORT'
     Port number on the client side of the TCP connection.

   Additionally, if given the '--remote' option, 'inetd' sets the
following environment variables:

'TCPLOCALHOST'
     DNS name of 'TCPLOCALIP'.

'TCPREMOTEHOST'
     DNS name of 'TCPREMOTEIP'.