check_services - modified to add in check for proxy servers.
check_services - modified to add in check for proxy servers.

proxy.realm dns entry is regenerated to reflect the proxy servers that are online/offline.

the-linux-schools-project/karoshi-server,the-linux-schools-project/karoshi-server,the-linux-schools-project/karoshi-server,the-linux-schools-project/karoshi-server,the-linux-schools-project/karoshi-server,the-linux-schools-project/karoshi-server