noauth(5) [centos man page]
NOAUTH(5) AFS File Reference NOAUTH(5) NAME
NoAuth - Disables authorization checking DESCRIPTION
The NoAuth file, if present in a server machine's /var/lib/openafs/local directory, indicates to the AFS server processes running on the machine that it is not necessary to perform authorization checking. They perform any action for any user who logs into the machine's local file system or issues a remote command that affects the machine's AFS server functioning, such as commands from the AFS command suites. Because failure to check authorization exposes the machine's AFS server functionality to attack, there are normally only two circumstances in which the file is present: o During installation of the machine, as instructed in the OpenAFS Quick Start Guide. o During correction of a server encryption key emergency, as discussed in the OpenAFS Administration Guide. In all other circumstances, the absence of the file means that the AFS server processes perform authorization checking, verifying that the issuer of a command has the required privilege. Create the file in one of the following ways: o By issuing the bosserver initialization command with the -noauth flag, if the Basic OverSeer (BOS) Server is not already running. o By issuing the bos setauth command with off as the value for the -authrequired argument, if the BOS Server is already running. To remove the file, issue the bos setauth command with "on" as the value for the -authrequired argument. The file's contents, if any, are ignored; an empty (zero-length) file is effective. SEE ALSO
bos_setauth(8), bosserver(8) COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved. This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell. OpenAFS 2012-03-26 NOAUTH(5)
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BOS_SETAUTH(8) AFS Command Reference BOS_SETAUTH(8) NAME bos_setauth - Sets authorization checking requirements for all server processes SYNOPSIS bos setauth -server <machine name> -authrequired (on | off) [-cell <cell name>] [-noauth] [-localauth] [-help] bos seta -s <machine name> -a (on | off) [-c <cell name>] [-n] [-l] [-h] DESCRIPTION The bos setauth command enables or disables authorization checking on the server machine named by the -server argument. When authorization checking is enabled (the normal case), the AFS server processes running on the machine verify that the issuer of a command meets its privilege requirements. When authorization checking is disabled, server processes perform any action for anyone, including the unprivileged user "anonymous"; this security exposure precludes disabling of authorization checking except during installation or emergencies. To indicate to the server processes that authorization checking is disabled, the BOS Server creates the zero-length file /var/lib/openafs/local/NoAuth on its local disk. All AFS server processes constantly monitor for the NoAuth file's presence and do not check for authorization when it is present. The BOS Server removes the file when this command is used to re-enable authorization checking. CAUTIONS Do not create the NoAuth file directly, except when directed by instructions for dealing with emergencies (doing so requires being logged in as the local superuser "root"). Use this command instead. OPTIONS -server <machine name> Indicates the server machine on which to enable or disable authorization checking. Identify the machine by IP address or its host name (either fully-qualified or abbreviated unambiguously). For details, see bos(8). -authrequired (on | off) Enables authorization checking if the value is "on", or disables it if the value is "off". -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 bos(8). -noauth Assigns the unprivileged identity "anonymous" to the issuer. Do not combine this flag with the -localauth flag. For more details, see bos(8). -localauth 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). -help Prints the online help for this command. All other valid options are ignored. EXAMPLES The following example disables authorization checking on the machine "fs7.abc.com": % bos setauth -server fs7.abc.com -authrequired off PRIVILEGE REQUIRED 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 flag is included. SEE ALSO KeyFile(5), NoAuth(5), UserList(5), bos(8), bos_restart(8) COPYRIGHT IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved. This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell. OpenAFS 2012-03-26 BOS_SETAUTH(8)