On Thu, Jun 03, 2004 at 02:24:06PM +0100, Gervase wrote:
> On Wed, 2004-06-02 at 15:49, Ron Snyder wrote:
> 
> > if you do a 'dig database.clamav.net' or a 'host database.clamav.net', do
> > you get useful answers? 
> 
> No.  Both merely say:
> "truncated, retrying in TCP mode,
> timed out -no servers could be reached".
> 
> I am baffled, especially by the fact that the problem first occurred 
> for no apparent reason while happily using Clamav 0.70.  

Don't give up!  Have you tried something along the lines of:

   host google.co.uk
   
You should see something like:

   google.co.uk            A       216.239.59.104
   google.co.uk            A       216.239.39.104
   google.co.uk            A       216.239.57.104
   
If you don't, then I guess you have a problem interacting with your 
name server.  If it does work, then you could try:

   traceroute google.co.uk
   
We go through a proxy here which is firewalled, so my traceroute is as 
follows - but it shows the route up to and including the firewall so
you know its getting at least that far.

   traceroute: Warning: google.co.uk has multiple addresses; using 216.239.39.104
   traceroute to google.co.uk (216.239.39.104), 30 hops max, 38 byte packets
    1  labgw-o (10.100.200.1)  0.540 ms  0.221 ms  0.110 ms
    2  httpproxy-l (10.100.130.2)  0.321 ms  0.246 ms  0.200 ms
    3  httpproxy-l (10.100.130.2)  0.348 ms  0.403 ms  0.316 ms


A similar exercise with database.clamav.net resulted in:

   traceroute: Warning: database.clamav.net has multiple addresses; using 
212.31.160.239
   traceroute to db.europe.clamav.net (212.31.160.239), 30 hops max, 38 byte packets
    1  labgw-o (10.100.200.1)  1.023 ms  0.513 ms  0.394 ms
    2  httpproxy-l (10.100.130.2)  0.361 ms  0.440 ms  0.383 ms
    3  httpproxy-l (10.100.130.2)  0.509 ms  0.465 ms  0.394 ms


What happens is you try:

   host db.europe.clamav.net
   
I get:

   db.europe.clamav.net    A       193.19.98.136
   db.europe.clamav.net    A       193.52.101.131
   db.europe.clamav.net    A       193.138.115.108
   db.europe.clamav.net    A       193.225.86.3
   db.europe.clamav.net    A       195.13.43.28
   db.europe.clamav.net    A       195.70.36.141
   db.europe.clamav.net    A       195.92.99.99
   db.europe.clamav.net    A       212.14.28.36
   db.europe.clamav.net    A       212.31.160.239
   db.europe.clamav.net    A       212.162.12.159
   db.europe.clamav.net    A       213.184.16.3
   db.europe.clamav.net    A       213.203.254.4
   db.europe.clamav.net    A       62.210.153.201
   db.europe.clamav.net    A       80.69.67.3
   db.europe.clamav.net    A       147.229.3.16
   db.europe.clamav.net    A       152.66.249.132
   db.europe.clamav.net    A       193.1.219.100


What happens if you try:

   host 193.19.98.136
   
I get:

   Name: morden.dbplc.com
   Address: 193.19.98.136
   
I think it would be worth persevering and if you have to specify a few
specific IP addresses for freshclam until you get your problem
resolved then it's not so terrible.  If host works with google.co.uk
and it doesn't work with database.clamav.net then somewhere surely
there must be a firewall blocking TCP DNS requests?

Jo.

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