Would really like to be able to use syslog, but without a plugin for use with Liquid Files I cannot receive syslog data
We (LF support) don't have practical experience with the Alienvault platform, but the LF appliance is using the standard Syslog format. According to this list of plugins in the Alienvault should already be a generic Syslog plugin, which should be available to select under the new plugin configuration ("Plugins > Edit Plugin"). When this Syslog plugin is configured the Alienvault should listen now on the udp/514 port and you should be able easily forward logs there from the LF server. On the LF server you need then only configure the Alienvault's IP/hostname and the syslog port under the "Admin > System > Network > Syslog" tab.