.TH tcp-environ 5.SH NAMEtcp-environ \- TCP-related environment variables.SH DESCRIPTIONThe following environment variablesdescribe a TCP connection.They are set up by.BR tcp-env ,.BR tcpclient ,and.BR tcpserver .Note that.BR TCPLOCALHOST ,.BR TCPREMOTEHOST ,and.B TCPREMOTEINFOcan contain arbitrary characters..TP 5PROTOThe string.BR TCP ..TP 5TCPLOCALHOSTThe domain name of the local host,with uppercase letters converted to lowercase.If there is no currently available domain namefor the local IP address,.B TCPLOCALHOSTis not set..TP 5TCPLOCALIPThe IP address of the local host, in dotted-decimal form..TP 5TCPLOCALPORTThe local TCP port number, in decimal..TP 5TCPREMOTEHOSTThe domain name of the remote host,with uppercase letters converted to lowercase.If there is no currently available domain namefor the remote IP address,.B TCPREMOTEHOSTis not set..TP 5TCPREMOTEINFOA connection-specific string, perhaps a username,supplied by the remote hostvia 931/1413/IDENT/TAP.If the remote host did not supply connection information,.B TCPREMOTEINFOis not set..TP 5TCPREMOTEIPThe IP address of the remote host..TP 5TCPREMOTEPORTThe remote TCP port number..SH "SEE ALSO"tcpclient(1),tcpserver(1),tcp-env(1),tcp(4)