archive mirror
 help / color / mirror / Atom feed
* PATCH: update Changes for NFS changes
@ 2003-07-27 20:28 Alan Cox
  0 siblings, 0 replies; only message in thread
From: Alan Cox @ 2003-07-27 20:28 UTC (permalink / raw)
  To: linux-kernel, torvalds

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.6.0-test2/Documentation/Changes linux-2.6.0-test2-ac1/Documentation/Changes
--- linux-2.6.0-test2/Documentation/Changes	2003-07-10 21:14:21.000000000 +0100
+++ linux-2.6.0-test2-ac1/Documentation/Changes	2003-07-16 18:40:03.000000000 +0100
@@ -61,9 +61,9 @@
 o  quota-tools            3.09                    # quota -V
 o  PPP                    2.4.0                   # pppd --version
 o  isdn4k-utils           3.1pre1                 # isdnctrl 2>&1|grep version
+o  nfs-utils              1.0.4                   # showmount --version
 o  procps                 2.0.9                   # ps --version
 o  oprofile               0.5.3                   # oprofiled --version
-o  nfs-utils              1.0.3                   # showmount --version
 Kernel compilation
@@ -280,6 +280,34 @@
 Due to changes in the length of the phone number field, isdn4k-utils
 needs to be recompiled or (preferably) upgraded.
+In 2.4 and earlier kernels, the nfs server needed to know about any
+client that expected to be able to access files via NFS.  This
+information would be given to the kernel by "mountd" when the client
+mounted the filesystem, or by "exportfs" at system startup.  exportfs
+would take information about active clients from /var/lib/nfs/rmtab.
+This approach is quite fragile as it depends on rmtab being correct
+which is not always easy, particularly when trying to implement
+fail-over.  Even when the system is working well, rmtab suffers from
+getting lots of old entries that never get removed.
+With 2.6 we have the option of having the kernel tell mountd when it
+gets a request from an unknown host, and mountd can give appropriate
+export information to the kernel.  This removes the dependency on
+rmtab and means that the kernel only needs to know about currently
+active clients.
+To enable this new functionality, you need to:
+  mount -t nfsd nfsd /proc/fs/nfs
+before running exportfs or mountd.  It is recommended that all NFS
+services be protected from the internet-at-large by a firewall where
+that is possible.
 Getting updated software
@@ -368,6 +396,10 @@
 o  <>
+o  <>
 o  <>

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2003-07-28  1:17 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-07-27 20:28 PATCH: update Changes for NFS changes Alan Cox

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).