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mfsexports.cfg(5) This is part of MooseFS mfsexports.cfg(5) NAME mfsexports.cfg - MooseFS access control for mfsmounts DESCRIPTION The file mfsexports.cfg contains MooseFS access list for mfsmount clients. SYNTAX Syntax is: ADDRESS DIRECTORY [OPTIONS] Lines starting with # character are ignored as comments. ADDRESS can be specified in several forms: * all addresses n.n.n.n single IP address n.n.n.n/b IP class specified by network address and number of significant bits n.n.n.n/m.m.m.m IP class specified by network address and mask f.f.f.f-t.t.t.t IP range specified by from-to addresses (inclusive) DIRECTORY can be / or path relative to MooseFS root; special value . means MFSMETA companion filesystem. OPTIONS list: ro, readonly export tree in read-only mode; this is default rw, readwrite export tree in read-write mode alldirs allows to mount any subdirectory of specified directory (simi- larly to NFS) dynamicip allows reconnecting of already authenticated client from any IP address (the default is to check IP address on reconnect) ignoregid disable testing of group access at mfsmaster level (it's still done at mfsmount level) - in this case "group" and "other" per- missions are logically added; needed for supplementary groups to work (mfsmaster receives only user primary group information) admin administrative privileges - currently: allow changing of quota values and storage classes management maproot=USER[:GROUP] maps root (uid=0) accesses to given user and group (similarly to maproot option in NFS mounts); USER and GROUP can be given ei- ther as name or number; if no group is specified, USER's primary group is used. Names are resolved on mfsmaster side (see note below). mapall=USER[:GROUP] like above but maps all non privileged users (uid!=0) accesses to given user and group (see notes below). password=PASS, md5pass=MD5 requires password authentication in order to access specified resource minversion=VER rejects access from clients older than specified mingoal=N, maxgoal=N specify range in which goal can be set by users mintrashtime=TDUR, maxtrashtime=TDUR specify range in which trashtime can be set by users disable=OPERATION[:OPERATION[:...]] do not allow the client to perform certain operations Default options are: ro, maproot=999:999, mingoal=1, maxgoal=9, mintrashtime=0, maxtrashtime=4294967295. NOTES USER and GROUP names (if not specified by explicit uid/gid number) are resolved on mfsmaster host. TDUR can be specified as number without time unit (number of seconds) or combination of numbers with time units. Time units are: W,D,H,M,S. Order is important - less significant time units can't be defined be- fore more significant time units. Time units are case insensitive. Option mapall works in MooseFS in different way than in NFS, because MooseFS is using FUSE's "default_permissions" option. When mapall op- tion is used, users see all objects with uid equal to mapped uid as their own and all other as root's objects. Similarly objects with gid equal to mapped gid are seen as objects with current user's primary group and all other objects as objects with group 0 (usually wheel). With mapall option set attribute cache in kernel is always turned off. Option disable can take many parameters (operations to disable) in two ways: as a list separated by colons (:) or by repeating the option many times. List of operations that can be disabled: chown - don't allow the client to perform the chown operation chmod - don't allow the client to perform the chmod operation symlink - don't allow the client to create symbolic links mkfifo - don't allow the client to create FIFOs mkdev - don't allow the client to create devices mksock - don't allow the client to create sockets mkdir - don't allow the client to create directories unlink - don't allow the client to remove non directory objects (will also deny move/rename operation if target inode already exists!) rmdir - don't allow the client to remove directories (will also deny move/rename operation if target inode already exists!) rename - don't allow the client to change inodes (files, directories) names move - don't allow the client to move inodes (files, directories) to another path link - don't allow the client to create hard links create - don't allow the client to create new files readdir - don't allow the client to list directories ('ls' command will not work) read - don't allow the client to read from files write - don't allow the client to write to files truncate - don't allow the client to shorten the length of a file with truncate command setlength - don't allow the client to increase the length of a file with truncate command appendchunks - don't allow the client to add chunks from one file to another (mfsappendchunks) snapshot - don't allow the client to create snapshots settrash - don't allow the client to change trash retention time setsclass - don't allow the client to set storage classes seteattr - don't allow the client to set mfs extra attributes setxattr - don't allow the client to set XATTRs setfacl - don't allow the client to set ACLs EXAMPLES * / ro 192.168.1.0/24 / rw 192.168.1.0/24 / rw,alldirs,maproot=0,password=passcode 10.0.0.0-10.0.0.5 /test rw,maproot=nobody,password=test 10.1.0.0/255.255.0.0 /public rw,mapall=1000:1000 10.2.0.0/16 / rw,alldirs,maproot=0,mintrashtime=2h30m,maxtrashtime=2w 192.168.1.0/24 / rw,disable=unlink:rmdir:truncate 192.168.1.0/24 / rw,disable=unlink,disable=rmdir,disable=truncate REPORTING BUGS Report bugs to <bugs@moosefs.com>. COPYRIGHT Copyright (C) 2023 Jakub Kruszona-Zawadzki, Saglabs SA This file is part of MooseFS. MooseFS is free software; you can redistribute it and/or modify it un- der the terms of the GNU General Public License as published by the Free Software Foundation, version 2 (only). MooseFS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with MooseFS; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1301, USA or visit http://www.gnu.org/licenses/gpl-2.0.html SEE ALSO mfsmaster(8), mfsmaster.cfg(5) MooseFS 3.0.117-1 February 2023 mfsexports.cfg(5)
NAME | DESCRIPTION | SYNTAX | NOTES | EXAMPLES | REPORTING BUGS | COPYRIGHT | SEE ALSO
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