If the DNS cache is disabled, the rest of this section is not displayed in perfdump. In the Admin console, the page displays zeros.
By default, the DNS cache is on. You can enable or disable DNS caching in the Admin console at "Configure DNS Caching".
Note: The Proxy server optionally maintains two types of DNS caches. One is a 'Host DNS' cache which caches the results of hostname to ip address lookups done on remote hosts. The second is a 'Client DNS' cache that caches the results of ip address to hostname lookup done on clients.