Enable DNS caching (-dnscache)

Syntax: -dnscache

This option will create a hosts table that will be used during subsequent walks to speed up host name lookups. Every host name encountered will be stored in the table and subsequent lookups for any host seen before will not require querying your nameserver. This is helpful when you walk a lot of different sites and have slow name service. The hosts table will NOT be cleared when the database is wiped with -wipe.