[clamav-users] ping database.clamav.net

[Maarten Broekman]

Régis,
  This is a feature of DNS where a name can resolve to multiple IPs for load balancing and resiliency. Depending on what serves ‘database.clamav.net’ it may just be a round-robin response or it may resolve to an IP based on which one is responding faster to requests or simply which one has the lowest ping at that time.

Maarten

Sent from a tiny keyboard

> On Mar 29, 2018, at 02:16, Régis Houssin <regis.houssin at gmail.com> wrote:
> 
> Hello
> 
> if i ping "database.clamav.net" i have a different response !!
> you have a problem with your DNS ?
> 
> 8:06 root at dolifarm1 ~# ping database.clamav.net
> PING db.fr.clamav.net (51.15.177.217) 56(84) bytes of data.
> 64 bytes from clamav.mindstudios.com (51.15.177.217): icmp_seq=1 ttl=57
> time=6.78 ms
> 64 bytes from clamav.mindstudios.com (51.15.177.217): icmp_seq=2 ttl=57
> time=6.79 ms
> 64 bytes from clamav.mindstudios.com (51.15.177.217): icmp_seq=3 ttl=57
> time=6.74 ms
> 64 bytes from clamav.mindstudios.com (51.15.177.217): icmp_seq=4 ttl=57
> time=6.82 ms
> 64 bytes from clamav.mindstudios.com (51.15.177.217): icmp_seq=5 ttl=57
> time=6.82 ms
> 64 bytes from clamav.mindstudios.com (51.15.177.217): icmp_seq=6 ttl=57
> time=6.78 ms
> ^C
> --- db.fr.clamav.net ping statistics ---
> 6 packets transmitted, 6 received, 0% packet loss, time 5006ms
> rtt min/avg/max/mdev = 6.743/6.793/6.824/0.086 ms
> 
> 
> 8:07 root at dolifarm1 ~# ping database.clamav.net
> PING db.fr.clamav.net (178.33.105.132) 56(84) bytes of data.
> 64 bytes from dev.lepartidegauche.fr (178.33.105.132): icmp_seq=1 ttl=60
> time=3.36 ms
> 64 bytes from dev.lepartidegauche.fr (178.33.105.132): icmp_seq=2 ttl=60
> time=3.48 ms
> 64 bytes from dev.lepartidegauche.fr (178.33.105.132): icmp_seq=3 ttl=60
> time=3.39 ms
> 64 bytes from dev.lepartidegauche.fr (178.33.105.132): icmp_seq=4 ttl=60
> time=3.32 ms
> 64 bytes from dev.lepartidegauche.fr (178.33.105.132): icmp_seq=5 ttl=60
> time=3.29 ms
> 64 bytes from dev.lepartidegauche.fr (178.33.105.132): icmp_seq=6 ttl=60
> time=3.46 ms
> ^C
> --- db.fr.clamav.net ping statistics ---
> 6 packets transmitted, 6 received, 0% packet loss, time 5006ms
> rtt min/avg/max/mdev = 3.295/3.387/3.482/0.101 ms
> 
> 
> 
> Cordialement,
> -- 
> Régis Houssin
> 
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