REHASH <option>

<option> can be one of the following:
  CONF - Re-read the server configuration file(s)
  DNS  - Re-read the /etc/resolv.conf file
  MOTD - Re-read MOTD file(s)

To REHASH on remote servers:
  REHASH <server> <option>

- Requires Oper Priv: rehash
- Requires Oper Priv: rehash:remote for REHASH on remote servers
