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Socket host file

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The socket host file contains the assignment between the socket host names and IP or IPV6 addresses for partner end systems.

The socket host names and IP addresses must be unambiguous, i.e. they may only be specified once each. The unambiguousness must be guaranteed by the network administrator.

Name and content of the socket host file

The name of the socket host file is defined using the SOCKETHOST-TABLE parameter in the DCOPT, DCSTART, or BCMOD command.
(Default name: $TSOS.SYSDAT.BCAM.ETC.HOSTS).

The following syntax rules apply to the file entries:

  • Comment lines:

    First character = * or #

  • Structure of all other lines (read from left to right)

    • IP address in "dotted decimal notation" or IPv6 address

    • at least one blank

    • (primary) socket host name (max. 32 characters)

    • at least one blank

    • a maximum of 5 additional (secondary) socket host names (optional);
      (up to 32 characters each and separated by at least one blank)

    • as of the #, the rest of the line is interpreted as a comment


Example

* Example of SOCKETHOST-ADDRESS-TABLE
127.0.0.1 LOCALHOST localhost LOOPBACK *local
139.34.115.8 DFS114  # C30-1
::139.25.17.9 MIGRPC15
FE80::A00:6FF:FE08:9A62 BCAMVM03 bcamvm03