YPSET(8) COMMAND REFERENCE YPSET(8) NAME ypset - point ypbind at a particular server SYNOPSIS /usr/etc/yp/ypset [ -V1|-V2 ] [ -h host ] [ -d domain ] server DESCRIPTION The program ypset tells ypbind to get YP (Yellow Pages) services for the specified domain from the ypserv process running on server. If server is down, or isn't running ypserv, this is not discovered until a YP client process tries to get a binding for the domain. At this point, the binding set by ypset will be tested by ypbind; if the binding is invalid, ypbind will attempt to rebind for the same domain. Useful for binding a client node which is not on a broadcast net, or is on a broadcast net which isn't running a YP server host, ypset is also useful for debugging YP client applications, for instance, where a YP map only exists at a single YP server host. In cases where several hosts on the local net are supplying YP services, it is possible for ypbind to rebind to another host even while you attempt to find out if the ypset operation succeeded. That is, you can type ypset host1 and then type ypwhich; ypset replies: host2, which can be confusing. This is a function of the YP subsystem's attempt to load balance among the available YP servers, and occurs when host1 does not respond to ypbind because it is not running ypserv (or is overloaded), and host2, running ypserv, gets the binding. The argument server indicates the YP server to bind to, and can be specified as a name or an IP (Internet Protocol) address. If specified as a name, ypset attempts to use YP services to resolve the name to an IP address; this will work only if the node has a current valid binding for the domain in question. In most cases, server should be specified as an IP address. Refer to ypfiles(5) and ypserv(8) for an overview of the Yellow Pages. OPTIONS -V1 Bind server for the (old) version 1 YP protocol. Printed 4/6/89 1
YPSET(8) COMMAND REFERENCE YPSET(8) -V2 Bind server for the (current) version 2 YP protocol. If no version is supplied, ypset first attempts to set the domain for the (current) version 2 protocol. If this attempt fails, ypset then attempts to set the domain for the (old) version 1 protocol. -h host Set ypbind's binding on host, instead of locally; host can be specified as a name or as an IP address. -d domain Specify domain , instead of the default domain. CAVEATS The ypbind server must already be running before running ypset. SEE ALSO ypwhich(1), ypfiles(5), ypserv(8). Printed 4/6/89 2
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