Operating System Microsoft Windows Apple Mac OS X Linux
Version Supported XP SP3 or later, Vista, 7, 8, 10, Server 2003, 2008 and 2012 10.7 or later Tested on Debian, Unbuntu, Fedora, Red Hat and CentOS
Disk Space for Cloud Client 5MB + 40MB Disk Cache + 300MB for signatures

5MB + 40MB Disk Cache + 300MB for signatures

5MB + 40MB Disk Cache + 300 MB for signatures

Additional Disk Space for A/V Signatures 300MB 300MB 300MB

Memory for Could Client

4-12MB Depending on Settings

8-14MB Depending on Settings

8-14MB Depending on Settings 

Additional Memory When Web Filtering is Enabled

Additional rolling 256k per web connection, clears once web connection is complete

Additional rolling 256k per web connection, clears once web connection is complete

Additional rolling 256k per web connection, clears once web connection is complete

Additional Memory When Real Time A/V is Enabled

100-300MB 100-300MB 100-300MB

Additional Memory When an A/V Scan is Active

100-300MB

100-300MB 100-300MB
Additional Memory When A/V Signatures are Updating 100-300MB 100-300MB 100-300MB
Network Ports Required  80 and 8082 80 and 8082 80 and 8082