On my system, sysctl(8) shows that vfs.nfs.iodmin is 4. And this
is out of the box on a fresh install of 6.1 in which I told
sysinstall that I wanted no NFS. Sounds like a bug. Now that you've
explained where the knobs are, I see that I can work around it 
via lines in /boot/loader.conf, which can set sysctl variables
at the time when the kernel is loaded. But the bug should be 
addressed in 6.2. If you're not running NFS, you don't need NFS-
related processes laying around.

--Brett Glass

At 02:42 PM 10/31/2006, Dan Nelson wrote:
 

>In the last episode (Oct 31), Brett Glass said:
>> I have no interest in running NFS (AKA "no file security") on my 
>> FreeBSD boxes, but have  noticed that FreeBSD 6.x seems to start a 
>> daemon called "nfsiod" by default even when it is not configured as 
>> an NFS server or client. What's the best way to instruct the system 
>> not to start these processes, which take up resources and may be a 
>> security risk? Why isn't this done at sysinstall time?
>
>nfsiods are kernel threads that allow for parallel client requests from
>a machine.  You must still have some sort of NFS client functionality
>in the kernel for them to exist, but you can tell them to quit by
>setting the vfs.nfs.iodmax sysctl to 0.  They should exit imediately. 
>In fact, since iodmin defaults to zero, there shouldn't be any running
>unless you are actively using nfs.
>
>-- 
>        Dan Nelson
>        [EMAIL PROTECTED]

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