Security

 
		Unix		NT

User log-on required		Y		Y

File-level access permissions		Y		Y(1)

File-access control lists		Few		Y(2)

Security auditing		Most		Y

Role-based access		Few		Y

• NT has good security whereas Unix provides varying levels of security depending on implementation and also on other software added on to it
• Large software base for security products for Unix - such as TCP wrapper, Cops etc
• (1) Windows NT and Unix both offer read, write, and execute permissions on each file. NT adds "take ownership" and "change permission" to these.
• (2) Windows NT access-control lists apply not only to files but to all objects managed by the OS.