Book C-239Chapter 4 UtilitiesRemote Annex Administrator’s Guide for UNIXBook CerpcdThe erpcd, or expedited remote procedure call daemon, responds to allAnnex boot, dump, and ACP security requests. This daemon containstwo programs:• bfs – the block file server used to access host files and dumpAnnex images.• acp – the Access Control Protocol program for host-basedsecurity requests.Table C-78 lists the arguments for erpcd. The syntax is:/etc/erpcd [ [–D[level]] [–c [maxnumber] [–d [udpport][–f [directory]\[–p][–s [directory] [–u [filename] [–b [max_con] [–x[max_total]\[–g [period]]When operational code is being downloaded to Annexes, a minimum ofone host, accessible to an Annex, must be running erpcd with the bfsprogram enabled. A UDP port (121) for erpcd must be defined in theservices database and the eservices file must be configured properly.For expert C coders only: the host erpcd daemon can implementmacros, extended commands, command logging, and arbitrarysecurity restrictions through a set of interface routines to the AnnexCLI. These are documented in the acp_policy.doc file; theacp_policy.c file contains examples (for more details onimplementing code changes, see Modifying the Supplied SecurityApplication on page A-546 and Modifying the Code on page A-556).