cyflhn

whois API is not free. Is there any free API that can help us to identify the cloud hosting?

We need to send notifications to many apps. If we have 10 apps, we need to create 10 apns clients. As the number of apps increase, the number of concurrent...

@jchambers any solution on this issue?

hi, @jianggaocheng I have upgraded io.netty:netty-resolver-dns to 4.1.53.Final, but the problem still exists.

@jianggaocheng I am sure there is no other netty dependencies in our module. You can look into the source code of `getResolver ` method in `AddressResolverGroup.` If all apns clients...

@jchambers the number of opening udp ports is limited on a server, we need udp ports to resolve other domains. On the other hand, it is not necessary to open...