ADSRV(8) ADSRV(8) NAME adsrv - Plan B volume announce server SYNOPSIS adsrv [ -d ] [ -n addr ] [ -c volcfg ] [ dir ] DESCRIPTION Adsrv is a registry service for Plan B volumes. Volumes reg- ister with it to announce availability, names and proper- ties, and bns tries to reach this service to learn of pub- licly available volumes. The program runs at the central file server, so that all other machines can know where to find it. This service uses an ad-hoc protocol to register and to discover volumes. The protocol maintains connections open between file servers and adsrv that are initially used the file servers to write descriptions of their volumes in the format required by bns(4). While the connection is alive, adsrv keeps a copy of the announce at /lib/ndb/vol or at dir when it is specified. When the connection breaks, the announce is forgotten and the corresponding file with the copy is removed. Connections between bns and adsrv are used by the former to ask for the set of known announces, which are sent using the standard description format for the volume spec. See bns(4). Option -c tells adsrv to read volcfg to find announces for static volumes (which are always there). Option -n can be used to give an alternate address to listen for client requests. The default address is tcp!*!11010 and is assumed to be available at the file server. Flag -d enables diagnostic messages for debugging. SOURCE /sys/src/cmd/adsrv.c SEE ALSO bns(4), planbfs(4). BUGS Connections are not authenticated. Anyone can lie.