Re: mountd through a firewall?

[Robert Rati <Robert.Rati@motorola.com>]

Ion Badulescu wrote:
> On Wed, 19 Feb 2003 16:56:46 -0600, Robert Rati <Robert.Rati@motorola.com> wrote:
> 
>>When I start rpc.mountd, I notice that it always registers 4 ports with 
>>portmapper.  2 TCP and 2 UDP, which corespond to two separate instances 
>>of mountd.  When I run exportfs, I see that no file systems are being 
>>exported.  If I export a file system, the only difference is exportfs 
>>shows a file system being exported.  This will obviously cause a problem 
>>if I try to specify a port for rpc.mountd to run on as both instances of 
>>mountd try to use the same port and the tcp bind for the second instance 
>>fails.  Why does rpc.mountd start two instances of mountd?
> 
> 
> It doesn't, so you must be doing something very wrong on your system -- 
> are you starting a second mountd or something?

Thanks for the reply.

Actually, I mispoke in my first statement, sorry.  mountd isn't creating 
two instances on the system, but it's opening 4 ports from the same 
instance.  I thought that maybe mountd was opening a pair of ports for 
each exported filesystem, but my /etc/exports is bare, exportfs shows no 
exported file systems, so why is mountd using 4 ports?  Even if I share 
a directory, mountd is still using 4 ports.

Is there a way to control the port range mountd will use?  If not, do 
you know the range mountd will use?

Rob



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