NFS and UDP port 1434

NFS and UDP port 1434

[Morong, Gerry]

[-- Attachment #1: Type: text/plain, Size: 511 bytes --]

Have a hundred plus Red Hat 7.3 NFS clients connecting to several
NetApps and Red Hat 7.3 fileservers.  They are configured to run NFS V3
over UDP.  When the SQL slammer bug hit our routers were reconfigured to
block UPD port 1434.  This caused sporadic NFS lockups for mounts
outside the local subnet subject to the port blocking.  Once the port
blocking was cleared from the routers, NFS connections freed up and
started working again. What part of NFS should be using UDP port 1434?  

Gerry 




[-- Attachment #2: Type: text/html, Size: 3033 bytes --]

Re: NFS and UDP port 1434

[Trond Myklebust]

>>>>> " " =3D=3D Gerry Morong <Morong> writes:

     > Have a hundred plus Red Hat 7.3 NFS clients connecting to
     > several NetApps and Red Hat 7.3 fileservers.=A0 They are
     > configured to run NFS V3 over UDP.=A0 When the SQL slammer bug
     > hit our routers were reconfigured to block UPD port 1434.=A0 This
     > caused sporadic NFS lockups for mounts outside the local subnet
     > subject to the port blocking.=A0 Once the port blocking was
     > cleared from the routers, NFS connections freed up and started
     > working again. What part of NFS should be using UDP port 1434?=A0

'/usr/sbin/rpcinfo -p' will tell you.

It is probably either rpc.statd or rpc.lockd

Cheers,
  Trond





-------------------------------------------------------
This SF.NET email is sponsored by:
SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See!
http://www.vasoftware.com
_______________________________________________
NFS maillist  -  NFS@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nfs