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<TITLE>Administration Reference</TITLE>
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<META HTTP-EQUIV="updated" CONTENT="Tue, 03 Oct 2000 16:18:29">
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<A NAME="Top_Of_Page"></A>
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<H1>Administration Reference</H1>
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<HR><P ALIGN="center"> <A HREF="../index.htm"><IMG SRC="../books.gif" BORDER="0" ALT="[Return to Library]"></A> <A HREF="auarf002.htm#ToC"><IMG SRC="../toc.gif" BORDER="0" ALT="[Contents]"></A> <A HREF="auarf256.htm"><IMG SRC="../prev.gif" BORDER="0" ALT="[Previous Topic]"></A> <A HREF="#Bot_Of_Page"><IMG SRC="../bot.gif" BORDER="0" ALT="[Bottom of Topic]"></A> <A HREF="auarf258.htm"><IMG SRC="../next.gif" BORDER="0" ALT="[Next Topic]"></A> <A HREF="auarf284.htm#HDRINDEX"><IMG SRC="../index.gif" BORDER="0" ALT="[Index]"></A> <P>
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<P>
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<H2><A NAME="HDRVOS_CHANGEADDR" HREF="auarf002.htm#ToC_271">vos changeaddr</A></H2>
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<A NAME="IDX5612"></A>
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<A NAME="IDX5613"></A>
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<P><STRONG>Purpose</STRONG>
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<P>Changes or removes a file server machine's entry in the VLDB
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<P><STRONG>Synopsis</STRONG>
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<PRE><B>vos changeaddr -oldaddr</B> <<VAR>original IP address</VAR>> [<B>-newaddr</B> <<VAR>new IP address</VAR>>]
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[<B>-remove</B>] [<B>-cell</B> <<VAR>cell name</VAR>>] [<B>-noauth</B>] [<B>-localauth</B>]
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[<B>-verbose</B>] [<B>-help</B>]
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<B>vos ch -o</B> <<VAR>original IP address</VAR>> [<B>-ne</B> <<VAR>new IP address</VAR>>] [<B>-r</B>]
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[<B>-c</B> <<VAR>cell name</VAR>>] [<B>-no</B>] [<B>-l</B>] [<B>-v</B>] [<B>-h</B>]
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</PRE>
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<P><STRONG>Description</STRONG>
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<P>The <B>vos changeaddr</B> command removes a server entry from the
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Volume Location Database (VLDB) when the <B>-remove</B> flag is combined
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with the <B>-oldaddr</B> argument. There must be no VLDB entries
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that list the machine as a site for any version of a volume (if necessary, use
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the <B>vos move</B> or <B>vos remove</B> command to more or remove
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volumes). It is appropriate to remove a VLDB server entry when removing
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the corresponding file server machine from service; this is the only
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recommended use of the command.
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<P>To display all VLDB server entries, use the <B>vos listaddrs</B>
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command.
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<P><STRONG>Cautions</STRONG>
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<P>Combining the command's <B>-oldaddr</B> and <B>-newaddr</B>
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arguments is no longer the appropriate way to change the IP address registered
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for a file server machine. Furthermore, if a machine is multihomed and
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its server entry includes several addresses, then the address specified with
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the <B>-newaddr</B> argument replaces all of the addresses currently
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listed in the server entry that includes the address specified by the
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<B>-oldaddr</B> argument. This effectively makes the machine
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single-homed with respect to AFS operations, which is probably not the desired
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result.
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<P>The recommended method for changing the IP addresses in a server entry is
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instead to restart the <B>fs</B> process group (which includes the File
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Server) after using the utilities provided by the operating system to
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reconfigure the machine's network interfaces. For a description of
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how the File Server constructs and registers a list of its network interfaces
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in the VLDB, see the reference page for the <B>sysid</B> file.
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<P>If, counter to recommended usage, the command is used to change the IP
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address in a server entry, it does not also change the names of machine
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entries in the Protection Database. Operations fail when they refer to
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a protection group that has an obsolete IP address in it. Use the
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<B>pts rename</B> command to change the names of machine entries that
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correspond to the addresses changed with this command. Changing the
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address of a database server machine also requires updating the client and
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server versions of the <B>CellServDB</B> file on every machine.
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<P><STRONG>Options</STRONG>
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<DL>
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<P><DT><B>-oldaddr
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</B><DD>Specifies the IP address currently registered for the file server machine
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in the VLDB server entry. If there are multiple addresses registered
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for a multihomed machine, use any of them to identify the server entry.
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<P><DT><B>-newaddr
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</B><DD>Specifies the new IP address that replaces all currently registered
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addresses.
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<P><DT><B>-remove
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</B><DD>Removes from the VLDB the server entry that includes the address specified
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by the <B>-oldaddr</B> argument.
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<P><DT><B>-cell
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</B><DD>Names the cell in which to run the command. Do not combine this
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argument with the <B>-localauth</B> flag. For more details, see the
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introductory <B>vos</B> reference page.
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<P><DT><B>-noauth
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</B><DD>Assigns the unprivileged identity <B>anonymous</B> to the
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issuer. Do not combine this flag with the <B>-localauth</B>
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flag. For more details, see the introductory <B>vos</B> reference
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page.
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<P><DT><B>-localauth
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</B><DD>Constructs a server ticket using a key from the local
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<B>/usr/afs/etc/KeyFile</B> file. The <B>vos</B> command
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interpreter presents it to the Volume Server and Volume Location Server during
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mutual authentication. Do not combine this flag with the
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<B>-cell</B> argument or <B>-noauth</B> flag. For more details,
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see the introductory <B>vos</B> reference page.
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<P><DT><B>-verbose
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</B><DD>Produces on the standard output stream a detailed trace of the
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command's execution. If this argument is omitted, only warnings
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and error messages appear.
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<P><DT><B>-help
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</B><DD>Prints the online help for this command. All other valid options
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are ignored.
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</DL>
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<P><STRONG>Examples</STRONG>
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<P>The following command removes the VLDB server entry that includes the IP
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address <B>192.12.107.214</B>.
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<PRE> % <B>vos changeaddr -oldaddr 192.12.107.214 -remove</B>
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</PRE>
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<P><STRONG>Privilege Required</STRONG>
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<P>Issuer must be listed in the <B>/usr/afs/etc/UserList</B> file on the
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machine specified with the <B>-oldaddr</B> argument and on each database
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server machine.
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<P><STRONG>Related Information</STRONG>
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<P><A HREF="auarf019.htm#HDRCLI_CSDB">CellServDB (client version)</A>
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<P><A HREF="auarf020.htm#HDRSV_CSDB">CellServDB (server version)</A>
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<P><A HREF="auarf035.htm#HDRUSERLIST">UserList</A>
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<P><A HREF="auarf049.htm#HDRSYSID">sysid</A>
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<P><A HREF="auarf129.htm#HDRFILESERVER">fileserver</A>
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<P><A HREF="auarf224.htm#HDRPTS_RENAME">pts rename</A>
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<P><A HREF="auarf252.htm#HDRVOS_INTRO">vos</A>
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<P><A HREF="auarf263.htm#HDRVOS_LISTADDRS">vos listaddrs</A>
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<P>
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<HR><P ALIGN="center"> <A HREF="../index.htm"><IMG SRC="../books.gif" BORDER="0" ALT="[Return to Library]"></A> <A HREF="auarf002.htm#ToC"><IMG SRC="../toc.gif" BORDER="0" ALT="[Contents]"></A> <A HREF="auarf256.htm"><IMG SRC="../prev.gif" BORDER="0" ALT="[Previous Topic]"></A> <A HREF="#Top_Of_Page"><IMG SRC="../top.gif" BORDER="0" ALT="[Top of Topic]"></A> <A HREF="auarf258.htm"><IMG SRC="../next.gif" BORDER="0" ALT="[Next Topic]"></A> <A HREF="auarf284.htm#HDRINDEX"><IMG SRC="../index.gif" BORDER="0" ALT="[Index]"></A> <P>
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