DNS servers can cache negative results as well as positive - albeit normally for a shorter time. It seems that 62.179.1.63 or 62 are caching or a pointing to another DNS server that's caching the fact that app.dziennik.edu.pl was unresolvable.
On Sep 30, 4:41 pm, Janusz Skonieczny <janusz.skoniec...@gmail.com> wrote: > But how It could have cached a bad lookup? The CNAME was set to > ghs.google.com from day one. > > Here an example network settings: > > Ethernet adapter Local Area Connection: > > Connection-specific DNS Suffix . : chello.pl > Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller > Physical Address. . . . . . . . . : [...] > DHCP Enabled. . . . . . . . . . . : Yes > Autoconfiguration Enabled . . . . : Yes > Link-local IPv6 Address . . . . . : [...] > IPv4 Address. . . . . . . . . . . : [...] > Subnet Mask . . . . . . . . . . . : 255.255.254.0 > Lease Obtained. . . . . . . . . . : 24 wrze˜nia 2011 09:33:25 > Lease Expires . . . . . . . . . . : 30 wrze˜nia 2011 06:09:11 > Default Gateway . . . . . . . . . : 87.207.162.1 > DHCP Server . . . . . . . . . . . : 10.131.40.1 > DHCPv6 IAID . . . . . . . . . . . : 249613134 > DHCPv6 Client DUID. . . . . . . . : > 00-01-00-01-13-77-89-56-E0-CB-4E-81-94-81 > DNS Servers . . . . . . . . . . . : 62.179.1.63 > 62.179.1.62 -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
