NAME
kafs-check-config - AFS configuration check tool
SYNOPSIS
kafs-check-config [-46PDvv] [-c <conffile>]* [-N <restriction>] [<cellname>]*
DESCRIPTION
This program is used to check the configuration for the in-kernel AFS filesystem (kAFS). This configuration is used when systemd mounts the filesystem to load up the cell database and create cell automounts in the /afs directory.
The configuration is also used by the kernel name resolver upcall to provide static configuration for some cells and to specify overrides and limits on DNS lookups.
If a list of "cellname" arguments is given, the listed cells will be dumped, including the sources of the Volume Location records and address records.
OPTIONS
|
-4 |
Only show IPv4 addresses in the dump. | ||
|
-6 |
Only show IPv6 addresses in the dump. | ||
|
-P |
Dump the parse tree of the configuration file(s). | ||
|
-D |
Dump the cell database extracted from the configuration. | ||
|
-v |
Increase the verbosity of the output. This may be specified multiple times. |
-c <conffile>
Specify a configuration file to read instead of the system default. This may be specified multiple times and the configuration files are read and applied in order.
-N <restriction>
Apply a restriction to the
lookup performed for the listed cells (if any are). Valid
restrictions include:
vl-srv
Don’t use SRV records to find Volume Location servers.
vl-afsdb
Don’t use AFSDB records to find Volume Location servers.
vl-all
Don’t use SRV or AFSDB records to find Volume Location servers.
vl-host
Don’t look cell name up as hostname to find a Volume Location server.
vl-dns
Don’t do any lookups to find Volume Location servers. Use only the static configuration.
ARGUMENT
<cellname>
The AFS cell name to display. Multiple cells may be specified. If no cell name is specified the default cell specified in "/proc/net/afs/rootcell" is displayed.
EXIT STATUS
0 - If check
okay and any dumping succeeded
1 - If an error occurs during processing
2 - If a command line error occurs
EXAMPLES
To display the configuration for the default cell:
#
kafs-check-config
=== Found cell some-cell.org ===
- use-dns=no
- show-cell=no
- status: no-lookup, from config
- VLSERVER shelter-4.some-cell.org [good; nss]
- address 10.0.0.48
- VLSERVER shelter-5.some-cell.org [good; nss]
- address 10.0.0.54
To display two specific cells:
#
kafs-check-config ir.stanford.edu grand.central.org
=== Found cell ir.stanford.edu ===
- show-cell=no
- status: good, from SRV
- VLSERVER afsdb3.stanford.edu [good; nss]
- udp
- port 7003, pref 0, weight 0
- address 171.64.7.246
- VLSERVER afsdb2.stanford.edu [good; nss]
- udp
- port 7003, pref 0, weight 0
- address 171.64.7.234
- VLSERVER afsdb1.stanford.edu [good; nss]
- udp
- port 7003, pref 0, weight 0
- address 171.64.7.222
=== Found cell grand.central.org ===
- show-cell=no
- status: good, from SRV
- VLSERVER grand.mit.edu [good; nss]
- udp
- port 7003, pref 0, weight 0
- address 18.9.48.14
- VLSERVER grand-old-opry.central.org [good; nss]
- udp
- port 7003, pref 0, weight 0
- address 128.2.13.219
SEE ALSO
kafs(7), kafs-client.conf(5), kafs-preload(8)
COPYRIGHT
Copyright (C) 2019 Red Hat, Inc. All Rights Reserved.
Written by David Howells (dhowells [AT] redhat.com)
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.