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-rw-r--r--utils/exportfs/exports.man11
1 files changed, 7 insertions, 4 deletions
diff --git a/utils/exportfs/exports.man b/utils/exportfs/exports.man
index 241b3af..8e6f880 100644
--- a/utils/exportfs/exports.man
+++ b/utils/exportfs/exports.man
@@ -47,7 +47,7 @@ NFS clients may be specified in a number of ways:
.IP "single host
This is the most common format. You may specify a host either by an
abbreviated name recognized be the resolver, the fully qualified domain
-name, or an IP address.
+name, an IPv4 address, or an IPv6 address.
.IP "IP networks
You can also export directories to all hosts on an IP (sub-) network
simultaneously. This is done by specifying an IP address and netmask pair
@@ -56,8 +56,9 @@ as
where the netmask can be specified in dotted-decimal format, or as a
contiguous mask length.
For example, either `/255.255.252.0' or `/22' appended
-to the network base IPv4 address results in identical subnetworks with 10 bits of
-host. Wildcard characters generally do not work on IP addresses, though they
+to the network base IPv4 address results in identical subnetworks with 10 bits
+of host. IPv6 addresses must use a contiguous mask length. Wildcard characters
+generally do not work on IP addresses, though they
may work by accident when reverse DNS lookups fail.
.IP "wildcards
Machine names may contain the wildcard characters \fI*\fR and \fI?\fR.
@@ -486,6 +487,7 @@ The format for extra export tables is the same as
/home/joe pc001(rw,all_squash,anonuid=150,anongid=100)
/pub *(ro,insecure,all_squash)
/srv/www \-sync,rw server @trusted @external(ro)
+/foo 2001:db8:9:e54::/64(rw) 192.0.2.0/24(rw)
'''/pub/private (noaccess)
.fi
.PP
@@ -501,7 +503,8 @@ option in this entry also allows clients with NFS implementations that
don't use a reserved port for NFS.
The sixth line exports a directory read-write to the machine 'server'
as well as the `@trusted' netgroup, and read-only to netgroup `@external',
-all three mounts with the `sync' option enabled.
+all three mounts with the `sync' option enabled. The seventh line exports
+a directory to both an IPv6 and an IPv4 subnet.
''' The last line denies all NFS clients
'''access to the private directory.
'''.SH CAVEATS