bos_addhost - Adds a database server machine to the CellServDB file
bos addhost -server
< host name
] [ -localauth
bos addh -s
< host name
The bos addhost
command adds an entry for each database server machine
specified with the -host
argument to the
file on the machine named by the
After executing this command (and waiting for the Update Server to propagate the
changes, if it is used), restart the database server processes on all database
server machines to force election of a quorum that includes the new set of
machines listed in the /etc/openafs/server/CellServDB
OpenAFS Quick Start Guide
explains in more detail how to add and remove
database server machines.
It is best to maintain a one-to-one mapping between hostnames and IP addresses
on a multihomed database server machine (this is actually the conventional
configuration for any AFS machine). The BOS Server uses the
routine to obtain the IP address associated with the
hostname specified by the -host
argument. If there is more than one
address, the BOS Server records in the CellServDB
entry the one that
appears first in the list of addresses returned by the routine. The routine
possibly returns addresses in a different order on different machines, which
can create inconsistency.
- -server <machine name>
- Identifies the server machine on which to change the
/etc/openafs/server/CellServDB file. Identify the machine by IP
address or its host name (either fully-qualified or abbreviated
unambiguously). For details, see bos(8).
In cells that use the Update Server to distribute the contents of the
/etc/openafs/server directory, it is conventional to specify only
the system control machine as a value for the -server argument.
Otherwise, repeat the command for each file server machine. For further
discussion, see bos(8).
- -host <host name>+
- Specifies the fully-qualified host name (such as
"db1.abc.com") of each database server machine to register in
the CellServDB file.
- -cell <cell name>
- Names the cell in which to run the command. Do not combine
this argument with the -localauth flag. For more details, see
- Register the host given by -host as a non-voting
clone site, which prevents the host from becoming a sync-site. This is an
advanced feature and should be used with caution.
- Assigns the unprivileged identity "anonymous" to
the issuer. Do not combine this flag with the -localauth flag. For
more details, see bos(8).
- Constructs a server ticket using a key from the local
/etc/openafs/server/KeyFile file. The bos command
interpreter presents the ticket to the BOS Server during mutual
authentication. Do not combine this flag with the -cell or
-noauth options. For more details, see bos(8).
- Prints the online help for this command. All other valid
options are ignored.
The following command adds the database server machines "db2.abc.com"
and "db3.abc.com" to the /etc/openafs/server/CellServDB
on the machine "fs1.abc.com" (the system control machine).
% bos addhost -server fs1.abc.com -host db2.abc.com db3.abc.com
The issuer must be listed in the /etc/openafs/server/UserList
file on the
machine named by the -server
argument, or must be logged onto a server
machine as the local superuser "root" if the -localauth
The OpenAFS Quick Start Guide
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