We have two types of DNS cache. One is client cache,used by local machine to resolve internet address. Second is server cache, used by DNS server to cache internet addresses which are not locally stored, but was recently requested by users.
To see what is in cache:
Client cache: On DOS prompt or PowerSchell type ipconfig /displaydns
DNS server cache: On PowerSchell prompt of server type Show-DnsServerCache
To delete cache:
Client cache: On DOS prompt or PowerSchell type ipconfig /flushdns
DNS server cache: On PowerSchell prompt of server type Clear-DnsServerCache
