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nfs ports firewall


Hi,

is there a possibility to use fixed ports for the rpc.mountd etc like
described in 

http://www.lowth.com/LinWiz/nfs_help.html

for linux?

I can mount my laptop (XP) cygwin disk without problems on my PC rh 7.3 as 
long as the firewall on the PC (ipchains) is off.

>From PC:

/usr/sbin/rpcinfo -p laptop

 program vers proto   port
    100000    2   tcp    111  portmapper
    100000    2   udp    111  portmapper
    100003    2   udp   2049  nfs
    100003    2   tcp   2049  nfs
    100005    1   udp    834  mountd
    100005    2   udp    834  mountd
    100005    1   tcp    837  mountd
    100005    2   tcp    837  mountd

Accepting ports 111 2049 834 and 837 in the ipchains rules is not
sufficient.

Thanks for any hint,

Gerhard Mallot 


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