Apple has updated the combo updater for Mac OS X Server 10.6.3. Although Apple provided no details on what was changed, the only users who need to consider installing it are those who updated from Mac OS X Server 10.6.0 using the 1.0 version of the Mac OS X Server 10.6.3 Combo Update, build 10D573 (in other words, someone reinstalling Snow Leopard Server from scratch and then updating to 10.6.3 in one step). The combo updater is available via the Apple Support Downloads page, and will be presented by Software Update to those reinstalling Snow Leopard Server from scratch. (Free, 897.32 MB)
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.*.