Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

The 

resetcounters

 command resets cumulative email monitoring counters. The reset affects global 

counters as well as per host counters. The reset does not affect the counters on messages in the delivery 
queue related to retry schedules.

You can also reset the counters in the GUI. See 

A request to the DNS cache where the record was found but the domain was 
unknown.

A request to the DNS cache where the record was found

in the cache, considered for use, and discarded because it was too old.

Many entries can exist in the cache even though their time to live (TTL) has 
been exceeded. As long as these entries are not used, they will not be included 
in the expires counter. When the cache is flushed, both valid and invalid (too 
old) entries are deleted. A flush operation does not change the expires counter.

mail3.example.com> dnsstatus

Status as of: Sat Aug 23 21:57:28 2003

Counters:                    Reset          Uptime        Lifetime

  DNS Requests         211,735,710       8,269,306     252,177,342

  Network Requests     182,026,818       6,858,332     206,963,542

  Cache Hits           474,675,247      17,934,227     541,605,545

  Cache Misses         624,023,089      24,072,819     704,767,877

  Cache Exceptions      35,246,211       1,568,005      51,445,744

  Cache Expired            418,369           7,800         429,015

mail3.example.com>