Apple has released OS X Server 2.1.1, which has been updated with the capability of managing DHCP from within the Server app as well as adding support for iOS 6 devices to the Profile Manager. The release also enables management of the blacklist settings for the Mail service, prevents spurious “Host name changed” alert messages after restarting, addresses an issue where AirPort base stations couldn’t be managed after updating from previous versions of OS X Server (as well as some other migration issues), and allows for setting a default NetBoot image in the Server app. ($19.99 new, free update, 136 MB, release notes)
Trust Local Addresses in VirusBarrier X6's Antivandal
VirusBarrier X6's Antivandal feature stops all kinds of network attacks, including port scans, ping floods and more. However, you may have some devices on your network that send out pings or other requests that may be interpreted as attacks. To prevent this, add them to the Trusted Addresses list so they won't be blocked. You can even add a range of addresses with wildcards, such as 192.168.1.*.