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15 <H1>Administration Reference</H1>
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18 <H2><A NAME="HDRBK_LISTHOSTS" HREF="auarf002.htm#ToC_95">backup listhosts</A></H2>
19 <P><STRONG>Purpose</STRONG>
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29 <P>Lists Tape Coordinator machines registered in the Backup Database
30 <P><STRONG>Synopsis</STRONG>
31 <PRE><B>backup listhosts</B> [<B>-localauth</B>] [<B>-cell</B> <<VAR>cell name</VAR>>] [<B>-help</B>]
33 <B>backup listh</B> [<B>-l</B>] [<B>-c</B> <<VAR>cell name</VAR>>] [<B>-h</B>]
35 <P><STRONG>Description</STRONG>
36 <P>The <B>backup listhosts</B> command displays the Backup Database record
37 of the port offset numbers defined for Tape Coordinator machines. A
38 Tape Coordinator must have an entry in the list to be available for backup
40 <P>The existence of an entry does not necessarily indicate that the Tape
41 Coordinator process (<B>butc</B>) is currently running at that port
42 offset. To check, issue the <B>backup status</B> command.
43 <P><STRONG>Options</STRONG>
46 </B><DD>Constructs a server ticket using a key from the local
47 <B>/usr/afs/etc/KeyFile</B> file. The <B>backup</B> command
48 interpreter presents it to the Backup Server, Volume Server and VL Server
49 during mutual authentication. Do not combine this flag with the
50 <B>-cell</B> argument. For more details, see the introductory
51 <B>backup</B> reference page.
53 </B><DD>Names the cell in which to run the command. Do not combine this
54 argument with the <B>-localauth</B> flag. For more details, see the
55 introductory <B>backup</B> reference page.
57 </B><DD>Prints the online help for this command. All other valid options
60 <P><STRONG>Output</STRONG>
61 <P>After a <TT>Tape</TT> <TT>hosts:</TT> header, the output reports
62 two things about each Tape Coordinator currently defined in the Backup
65 <P><LI>The hostname of the machine housing the Tape Coordinator. The
66 format of this name depends on the hostname format used when the <B>backup
67 addhost</B> command was issued.
68 <P><LI>The Tape Coordinator's port offset number.
70 <P>The Tape Coordinators appear in the order in which they were added to the
72 <P><STRONG>Examples</STRONG>
73 <P>The following example shows the result of the command in the ABC
75 <PRE> % <B>backup listhosts</B>
77 Host backup1.abc.com, port offset 0
78 Host backup1.abc.com, port offset 1
79 Host backup3.abc.com, port offset 4
80 Host backup2.abc.com, port offset 3
83 <P><STRONG>Privilege Required</STRONG>
84 <P>The issuer must be listed in the <B>/usr/afs/etc/UserList</B> file on
85 every machine where the Backup Server is running, or must be logged onto a
86 server machine as the local superuser <B>root</B> if the
87 <B>-localauth</B> flag is included.
88 <P><STRONG>Related Information</STRONG>
89 <P><A HREF="auarf060.htm#HDRBK_INTRO">backup</A>
90 <P><A HREF="auarf062.htm#HDRBK_ADDHOST">backup addhost</A>
91 <P><A HREF="auarf069.htm#HDRBK_DELHOST">backup delhost</A>
92 <P><A HREF="auarf089.htm#HDRBK_STATUS">backup status</A>
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