X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fexportfs%2Fexports.man;h=230258ee8754f86137404930bcc18e536a26a076;hp=2b316f546bd95187622a4697d750f3410850adf4;hb=ad7dd95f8e6b93b2db436e3131ca42e4a623d306;hpb=442c362b033ff30be49e162db8a57d8e375a6f1f diff --git a/utils/exportfs/exports.man b/utils/exportfs/exports.man index 2b316f5..230258e 100644 --- a/utils/exportfs/exports.man +++ b/utils/exportfs/exports.man @@ -29,6 +29,9 @@ double quotes. You can also specify spaces or other unusual character in the export name using a backslash followed by the character code as three octal digits. .PP +To apply changes to this file, run exportfs \-ra or /etc/init.d/nfs-kernel-server +reload (the latter being a distribution-specific extension). +.PP .SS Machine Name Formats NFS clients may be specified in a number of ways: .IP "single host @@ -109,8 +112,15 @@ Using this option usually improves performance, but at the cost that an unclean server restart (i.e. a crash) can cause data to be lost or corrupted. +.TP +.IR sync +Reply to requests only after the changes have been committed to stable +storage (see +.IR async +above). + In releases of nfs-utils upto and including 1.0.0, this option was the -default. In this and future releases, +default. In all subsequence releases, .I sync is the default, and .I async @@ -168,6 +178,14 @@ copes with the situation effectively. The option can be explicitly disabled with .IR hide . .TP +.IR crossmnt +This option is similar to +.I nohide +but it makes it possible for clients to move from the filesystem marked +with crossmnt to exported filesystems mounted on it. Thus when a child +filesystem "B" is mounted on a parent "A", setting crossmnt on "A" has +the same effect as setting "nohide" on B. +.TP .IR no_subtree_check This option disables subtree checking, which has mild security implications, but can improve reliability in some circumstances. @@ -202,6 +220,16 @@ The default of having subtree checks enabled, can be explicitly requested with .IR subtree_check . +From release 1.1.0 of nfs-utils onwards, the default will be +.I no_subtree_check +as subtree_checking tends to cause more problems than it is worth. +If you genuinely require subtree checking, you should explicitly put +that option in the +.B exports +file. If you put neither option, +.I exportfs +will warn you that the change is pending. + .TP .IR insecure_locks .TP @@ -323,7 +351,7 @@ By default, '''in the password file at startup time. If it isn't found, a uid and gid .I exportfs chooses a uid and gid -of -2 (i.e. 65534) for squashed access. These values can also be overridden by +of 65534 for squashed access. These values can also be overridden by the .IR anonuid " and " anongid options. @@ -377,8 +405,11 @@ Here's the complete list of mapping options: .TP .IR root_squash Map requests from uid/gid 0 to the anonymous uid/gid. Note that this does -not apply to any other uids that might be equally sensitive, such as user -.IR bin . +not apply to any other uids or gids that might be equally sensitive, such as +user +.IR bin +or group +.IR staff . .TP .IR no_root_squash Turn off root squashing. This option is mainly useful for diskless clients.