lkml.org 
[lkml]   [2000]   [Jul]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectNFS problem (2.4.0-test5-pre4)
From
>>>>> " " == Tigran Aivazian <tigran@veritas.com> writes:

> Hi guys, I just spotted an interesting problem.

> a) I run NFSv3 mountd (i.e. I don't specify --no-nfs-version 3)

> b) v3 support compiled in the kernel (both client and server)

> c) pass "tcp" option to select TCP protocol instead of UDP.

> mount -t nfs -o tcp localhost:/test /mnt

> this hangs. Also, if I try to pass -o nfsvers=3 on a v2-only
> kernel it hangs too (inside mount(2) system call)

> Also, I thought that in v3 it should select tcp protocol by
> default but it selects udp.

Hi,

The tcp server code is still being developed: I code which works well,
but it's very vulnerable to DOS attacks.

For the moment therefore, knfsd is UDP-only, and the linux client code
defaults to UDP...

Cheers,
Trond

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:57    [W:1.944 / U:0.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site