VM installed in VMWARE-Player eg Linux or windows installed on a win 7 host...
If install in such OS,... a server software, this can operate as is was non-VM, without problems on local host or on the Internet...?
If I understand correctly what you're asking, the answer is yes.
Exist anything that cannot run/done: between: (1) run Server normal(all functionality) in OS
-VS-
(2) run Server in VM-OS ?
Generally speaking the running of an OS in a Virtual Machine compared to running on a Physical Machine is no different, sans the hardware differences of course.
If you're having an issue then post a question reguarding the issue!