On 2020/4/2 6:43 下午, Klaus Darilion wrote:
So what was the bottleneck? I.e. if you use PowerDNS with DB backend you
quite early hit the limit with random subdomains, which are not a
problem if you use NSD for example. To mitigation such traffic patterns
for example we use dnsdist with 2 backends, PowerDNS for nomarl zones
and NSD for zones which are quite often under attack.
Hi
the bottleneck seems be the bandwidth of server (server has only 1Gbps
on its public interface).
b/c at that time the server totally has no response.
Even ssh can't get logined.
Thanks.
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