Henning Makholm, on 2004-01-22, 02:33, you wrote: > > In this particular case, where all FAM is doing is looking up a port > > number, portmapper is way overkill. > > Perhaps I'm really ignorant, but is "looking up a port number" not the > *only* thing the portmap service can be used for? Not exactly. Given a specific RPC program number (see /etc/rpc, you will find a service called sgi_fam with program number 391002), portmap is used for two things. First of all, a starting RPC service, like FAM is one, registers with portmap to announce its availability and to get a TCP or UDP port allocated. Client programs can then query portmap for available services and retrieve the allocated ports to connect to that service. So it's kind of a service registry that abolishes the need for well-known ports for each kind of service. This is how RPC works and so do CORBA and RMI. Joerg -- Joerg "joergland" Wendland GPG: 51CF8417 FP: 79C0 7671 AFC7 315E 657A F318 57A3 7FBD 51CF 8417
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