59 lines
2.5 KiB
HTML
59 lines
2.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
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<!--Converted with LaTeX2HTML 96.1-c (Feb 29, 1996) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds -->
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<HTML>
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<HEAD>
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<TITLE>The NFS Daemons</TITLE>
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</HEAD>
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<BODY LANG="EN">
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<A HREF="node144.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="next_motif.gif"></A> <A HREF="node140.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="up_motif.gif"></A> <A HREF="node142.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="previous_motif.gif"></A> <A HREF="node1.html"><IMG WIDTH=65 HEIGHT=24 ALIGN=BOTTOM ALT="contents" SRC="contents_motif.gif"></A> <BR>
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<B> Next:</B> <A HREF="node144.html">The exports File</A>
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<B>Up:</B> <A HREF="node140.html">The Network File System</A>
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<B> Previous:</B> <A HREF="node142.html">Mounting an NFS Volume</A>
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<BR> <P>
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<H1><A NAME="SECTION0013300000">The NFS Daemons</A></H1>
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<A NAME="nfsdaemons"></A>
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If you want to provide NFS service to other hosts, you have to run the
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nfsd and mountd daemons on your machine. As RPC-based
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programs, they are not managed by inetd, but are started up at
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boot time, and register themselves with the portmapper. Therefore, you
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have to make sure to start them only after rpc.portmap is
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running. Usually, you include the following two lines in your
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rc.inet2 script:
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<PRE>
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if [ -x /usr/sbin/rpc.mountd ]; then
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/usr/sbin/rpc.mountd; echo -n " mountd"
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fi
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if [ -x /usr/sbin/rpc.nfsd ]; then
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/usr/sbin/rpc.nfsd; echo -n " nfsd"
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fi
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</PRE>
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The ownership information of files a NFS daemon provides to its
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clients usually contains only numerical user and group id's. If both
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client and server associate the same user and group names with these
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numerical id's, they are said to share the same uid/gid space. For
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example, this is the case when you use NIS to distribute the
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passwd information to all hosts on your LAN.
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<P>
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On some occasions, however, they do not match. Rather updating the
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uid's and gid's of the client to match those of the server, you can
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use the ugidd mapping daemon to work around this. Using the
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map_daemon option explained below, you can tell nfsd
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to map the server's uid/gid space to the client's uid/gid space with
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the aid of the ugidd on the client.
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<P>
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ugidd is an RPC-based server, and is started from
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rc.inet2 just like nfsd and mountd.
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<PRE>
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if [ -x /usr/sbin/rpc.ugidd ]; then
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/usr/sbin/rpc.ugidd; echo -n " ugidd"
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fi
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</PRE>
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<HR>
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<P><ADDRESS>
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<I>Andrew Anderson <BR>
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Thu Mar 7 23:22:06 EST 1996</I>
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</ADDRESS>
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</BODY>
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</HTML>
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