Przeglądając logi firewalla natknąłem się na dużo połączeń z serwerem www.dlainwestora.um.zabrze.pl
Sprawdziłem pingiem:
D:\test>ping www.dlainwestora.um.zabrze.pl
Pinging www.dlainwestora.um.zabrze.pl [8.8.8.8] with 32 bytes of data:
Reply from 8.8.8.8: bytes=32 time=40ms TTL=46
Reply from 8.8.8.8: bytes=32 time=40ms TTL=46
Reply from 8.8.8.8: bytes=32 time=40ms TTL=46
Reply from 8.8.8.8: bytes=32 time=43ms TTL=46
Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 40ms, Maximum = 43ms, Average = 40ms
D:\test>ping google-public-dns-a.google.com
Pinging google-public-dns-a.google.com [8.8.8.8] with 32 bytes of data:
Reply from 8.8.8.8: bytes=32 time=41ms TTL=46
Reply from 8.8.8.8: bytes=32 time=44ms TTL=46
Reply from 8.8.8.8: bytes=32 time=42ms TTL=46
Reply from 8.8.8.8: bytes=32 time=48ms TTL=46
Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 41ms, Maximum = 48ms, Average = 43ms
Co Zabrze ma do publicznych serwerów DNS Google? Dlaczego mają ten sam IP?