I believe the network guru for Sourcefire/ClamAV® is still Ryan Steinmetz 
<[email protected]>.

On Oct 11, 2013, at 12:33 PM, Michael Mather <[email protected]> 
wrote:
> I want freshclam to get its updates through a firewall, and I want just
> a few specific IP addresses open for this purpose.
> 
> Being in Canada, I propose to code the following lines in
> freshclam.conf:
> 
>       DatabaseMirror  24.215.0.24
>       DatabaseMirror  208.70.244.158
> 
> and open those addresses on the firewall.
> 
> Q1: Is that good, or should I have more addresses?

Looks like you are missing at least a couple:

$ host db.ca.clamav.net
db.ca.clamav.net has address 208.70.244.158
db.ca.clamav.net has address 24.215.0.24
db.ca.clamav.net has address 128.177.8.248
db.ca.clamav.net has address 200.236.31.1

Not sure how it works in Canada, but in the US the list is in constant rotation 
with six out of seventeen IP's being used at any one time, some being off-shore 
since there isn't enough capacity from US mirrors.

> Q2: How can I anticipate either of those addresses no longer being a
> mirror, so that I can make changes?

I think you'd need an in with the mirror administrator.  I've never seen any 
traffic on what goes on behind the scenes with the 119 sites in 44 regions 
other than <http://www.clamav.net/mirrors.html> and even that isn't always 
completely up-to-date.

> Q3: What to do about the line:
>       DNSDatabaseInfo  current.cvd.clamav.net

Open port 53/tcp.


-Al-
-- 
Al Varnell
Mountain View, CA



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