* [PATCH] manpage: add section on character class matches to exports(5)
@ 2011-06-22 13:34 Jeff Layton
2011-06-22 22:38 ` Steve Dickson
0 siblings, 1 reply; 2+ messages in thread
From: Jeff Layton @ 2011-06-22 13:34 UTC (permalink / raw)
To: linux-nfs; +Cc: neilb
Signed-off-by: Jeff Layton <jlayton@redhat.com>
---
utils/exportfs/exports.man | 13 ++++++++-----
1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/utils/exportfs/exports.man b/utils/exportfs/exports.man
index d9486e8..b202583 100644
--- a/utils/exportfs/exports.man
+++ b/utils/exportfs/exports.man
@@ -47,7 +47,9 @@ NFS clients may be specified in a number of ways:
.IP "single host
You may specify a host either by an
abbreviated name recognized be the resolver, the fully qualified domain
-name, an IPv4 address, or an IPv6 address.
+name, an IPv4 address, or an IPv6 address. IPv6 addresses must not be
+inside square brackets in /etc/exports lest they be confused with
+character-class wildcard matches.
.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
@@ -57,11 +59,10 @@ 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. IPv6 addresses must use a contiguous mask length. Wildcard characters
-generally do not work on IP addresses, though they
+of host. IPv6 addresses must use a contiguous mask length and must not be inside square brackets to avoid confusion with character-class wildcards. 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.
+Machine names may contain the wildcard characters \fI*\fR and \fI?\fR, or may contain character class lists within [square brackets].
This can be used to make the \fIexports\fR file more compact; for instance,
\fI*.cs.foo.edu\fR matches all hosts in the domain
\fIcs.foo.edu\fR. As these characters also match the dots in a domain
@@ -488,6 +489,7 @@ The format for extra export tables is the same as
/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)
+/build buildhost[0-9].local.domain(rw)
'''/pub/private (noaccess)
.fi
.PP
@@ -504,7 +506,8 @@ 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. The seventh line exports
-a directory to both an IPv6 and an IPv4 subnet.
+a directory to both an IPv6 and an IPv4 subnet. The eighth line demonstrates
+a character class wildcard match.
''' The last line denies all NFS clients
'''access to the private directory.
'''.SH CAVEATS
--
1.7.5.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] manpage: add section on character class matches to exports(5)
2011-06-22 13:34 [PATCH] manpage: add section on character class matches to exports(5) Jeff Layton
@ 2011-06-22 22:38 ` Steve Dickson
0 siblings, 0 replies; 2+ messages in thread
From: Steve Dickson @ 2011-06-22 22:38 UTC (permalink / raw)
To: Jeff Layton; +Cc: linux-nfs, neilb
On 06/22/2011 09:34 AM, Jeff Layton wrote:
> Signed-off-by: Jeff Layton <jlayton@redhat.com>
> ---
> utils/exportfs/exports.man | 13 ++++++++-----
> 1 files changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/utils/exportfs/exports.man b/utils/exportfs/exports.man
> index d9486e8..b202583 100644
> --- a/utils/exportfs/exports.man
> +++ b/utils/exportfs/exports.man
> @@ -47,7 +47,9 @@ NFS clients may be specified in a number of ways:
> .IP "single host
> You may specify a host either by an
> abbreviated name recognized be the resolver, the fully qualified domain
> -name, an IPv4 address, or an IPv6 address.
> +name, an IPv4 address, or an IPv6 address. IPv6 addresses must not be
> +inside square brackets in /etc/exports lest they be confused with
> +character-class wildcard matches.
> .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
> @@ -57,11 +59,10 @@ 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. IPv6 addresses must use a contiguous mask length. Wildcard characters
> -generally do not work on IP addresses, though they
> +of host. IPv6 addresses must use a contiguous mask length and must not be inside square brackets to avoid confusion with character-class wildcards. 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.
> +Machine names may contain the wildcard characters \fI*\fR and \fI?\fR, or may contain character class lists within [square brackets].
> This can be used to make the \fIexports\fR file more compact; for instance,
> \fI*.cs.foo.edu\fR matches all hosts in the domain
> \fIcs.foo.edu\fR. As these characters also match the dots in a domain
> @@ -488,6 +489,7 @@ The format for extra export tables is the same as
> /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)
> +/build buildhost[0-9].local.domain(rw)
> '''/pub/private (noaccess)
> .fi
> .PP
> @@ -504,7 +506,8 @@ 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. The seventh line exports
> -a directory to both an IPv6 and an IPv4 subnet.
> +a directory to both an IPv6 and an IPv4 subnet. The eighth line demonstrates
> +a character class wildcard match.
> ''' The last line denies all NFS clients
> '''access to the private directory.
> '''.SH CAVEATS
Committed...
steved.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2011-06-22 22:38 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-06-22 13:34 [PATCH] manpage: add section on character class matches to exports(5) Jeff Layton
2011-06-22 22:38 ` Steve Dickson
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.