Hi all
I've very strange problem with my NFS server.
This server running 6-Stable Last update (after crash :-( ) 23 september.
I've very strange problem, after some days I got this kind of message on
syslog
nfs kernel: Connection attempt to TCP MY_NFS_IP_ADDR:111 from
MY_NFS_CLIENT_IP_ADDR:43385 flags:0x02
I've in my /etc/sysctl.conf something like
net.inet.tcp.log_in_vain=1
net.inet.udp.log_in_vain=1
The problem is this message appear event my rpcbind working (well appear in
ps auxwww) and when sockstat -l tell me
root rpcbind 932 6 udp6 *:111 *:*
root rpcbind 932 7 udp6 *:1023 *:*
root rpcbind 932 8 tcp6 *:111 *:*
root rpcbind 932 9 udp4 *:111 *:*
root rpcbind 932 10 udp4 *:734 *:*
root rpcbind 932 11 tcp4 *:111 *:*
Of course when this situation appear all my NFS client have big problem
with any rpc calling (rpc.lock, remount nfs, etc...)
How can the kernel tell this kind of message (what's I understand is the
are a not welcome incomming connection) when the sockstat (and lsof) tell
me the rpcbind listen is this port ?
I've have restart rpcbind/nfsd/etc...nothing change.
The server have all NIC in polling mode because without this flag the NIC
disapear (em0 watchdog etc...)
Today the only solution I've found is ... reboot the server :-(
Any one have a explaination ? and solution....
Regards.
--
Albert SHIH
Universite de Paris 7 (Denis DIDEROT)
U.F.R. de Mathematiques.
7 i?me ?tage, plateau D, bureau 10
Heure local/Local time:
Thu Oct 12 22:52:54 CEST 2006