Hello Stefan, and thank you for the reply. >>Are you using iptables Firewall? >>Does the problem only occur on UDP connections to the problematic IP? Or also >>on TCP >>connections to the same IP?
At the beginning, i thought was an iptables-behind-firewall problem and i made massive dns resolutions locally, from the same lan where the dns server is located. Same results: after 300/400 query per second bind make difficult to respond on the first IP. But resolving on the secondary, alias ip, works perfectly! What a matter!! Thank you Francesco _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users