From 204ba349fae6337d54f76b8d6399360440a54dc2 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Thu, 31 Jul 2003 05:19:53 -0700 Subject: [PATCH] [PATCH] update Changes for NFS changes --- Documentation/Changes | 34 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-) diff --git a/Documentation/Changes b/Documentation/Changes index 112c2d885d8..31505a74697 100644 --- a/Documentation/Changes +++ b/Documentation/Changes @@ -61,9 +61,9 @@ o pcmcia-cs 3.1.21 # cardmgr -V 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 @@ Isdn4k-utils Due to changes in the length of the phone number field, isdn4k-utils needs to be recompiled or (preferably) upgraded. +NFS-utils +--------- + +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 @@ Isdn4k-utils ------------ o +NFS-utils +--------- +o + Netfilter --------- o -- 2.11.4.GIT