+ List the addresses in 192.168.0.240\/29:
+ .
+ @
+ $ hath listed <<< 192.168.0.240\/29
+ 192.168.0.240
+ 192.168.0.241
+ 192.168.0.242
+ 192.168.0.243
+ 192.168.0.244
+ 192.168.0.245
+ 192.168.0.246
+ 192.168.0.247
+ @
+ .
+ Perform PTR lookups on all of 198.41.0.4\/30:
+ .
+ @
+ $ hath reversed <<< 198.41.0.4\/30
+ 198.41.0.4: a.root-servers.net.
+ 198.41.0.5:
+ 198.41.0.6: rs.internic.net.
+ 198.41.0.7:
+ @
+ .
+ The DNS lookups are usually the bottleneck for this mode, but we can
+ perform them in parallel. Simply pass the number of threads to the
+ GHC runtime on the command line; for example, the following will
+ perform 25 lookups in parallel: