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The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

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Re: [vox-tech] NFS:mount RPC timed out
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Re: [vox-tech] NFS:mount RPC timed out



I am no NFS guru, but I would check hosts.allow on the client.

xiao.liang@cn.alps.com wrote:

I use kernel 2.4.20,busybox 1.3.1,the NFS server is V4.When I try to mount use

mount -t nfs 10.25.16.130:/opt/Qtopia /opt/Qtopia

Got error ,mount: RPC time out

When I use ethreal on both the server and client side , found that the server have sent SYN,ACK back to client with the TCP connection, but the client just do not respond. I use portmap and also inetd. The tcpdump log is look like this:

10.25.16.160.794 > 10.25.16.130.sunrpc: S, cksum 0x5740 (correct), 31406388

10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x79e6 (correct), 2533961748:2
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x79e6 (correct), 2533961748:2
60) 10.25.16.160.794 > 10.25.16.130.sunrpc: S, cksum 0x5614 (correct), 31406388
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x76ff (correct), 2533961748:2
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x76ff (correct), 2533961748:2
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x76f8 (correct), 2533961748:2
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x76f8 (correct), 2533961748:2


60) 10.25.16.160.794 > 10.25.16.130.sunrpc: S, cksum 0x53bc (correct), 31406388
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x7123 (correct), 2533961748:2
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x7123 (correct), 2533961748:2
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x711c (correct), 2533961748:2
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x711c (correct), 2533961748:2


10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x6563 (correct), 2533961748:2
60) 10.25.16.160.794 > 10.25.16.130.sunrpc: S, cksum 0x4f0c (correct), 31406388
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x6561 (correct), 2533961748:2
10.25.16.130.sunrpc > 10.25.16.160.794: S, cksum 0x6563 (correct), 2533961748:


If it is the portmap and inetd's problem?
Following is some info:

In /etc/service
sunrpc 111/tcp portmap
sunrpc 111/udp portmap

In /etc/inetd.conf
#rstatd/1-3 dgram rpc/udp wait root /usr/sbin/tcpd rpc.rstatd
#rusersd/2-3 dgram rpc/udp wait root /usr/sbin/tcpd rpc.rusersd

Client use a random tcp port number to connect with server:111, then who will look after the SYN,ACK packet sent back by server, the inetd? Should I add a line in inetd.conf like "794 stream tcp nowait root portmap" , but it is a ramdom port number?! Or should there be a tcpd or sth run on my board????

Ask for help!!!!!

ps :

/usr/sbin/inetd
/sbin/portmap


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