NT Model :: essays research papers fc

When Windows NT was developed the designers ensured that security system features were built in unlike when for ensample when MS Dos was developed. By default NT has a minimum-security standard as developers assumed that the average user would not want a super secured operating strategy. As a result, administrators must configure or mollify the security levels to meet the users requirements. There ar three levels 1)Minimum no/few security features are used, however the spreading of viruses should still be taken into consideration2)Standard most machines store some block out of susceptible information, which is where the use of log-ons, passwords etc apply3)High-level - used when highly sensitive data is involved, where there is a risk of theft etcAuthentication an authorised area of security in relation to access controls, both to the system itself and to particular applications. NT allows the creation of accounts, which kindle be assembled into separate sections of e.g. users and administration. Both are set with separate privileges depending on the User ID and the password the user enters. The liberty controls are based on security Ids found in a security access token which determines the users privileges. However in highly secured systems fingerprints stern be used for authentication. Also, the built in Guest account potentiometer restrict entry for casual users. As well as tracking the users access controls, NT also manages the applications access controls by using a subject. These can be divided into both classes, a simple subject and a server subject. With regards to the simple subject, depending on the users access token, it will be allocated a security context. While the server subject is implemented as a protected server which uses the security context of the client when acting on behalf of the client.There are two file systems available for NT, these include the gamy (File Allocation Table) system and the NTFS. However, the FAT sys tem provides very little security as it was developed primarily with make in mind. In personal credit line NTFS was created specifically for Windows NT. It is fast, allows longer file names and is backward compatible with DOS programs. In order to facilitate the integrity of data at the ironware level, NT has a built-in fault tolerance. NTFS creates fault-tolerant track record subsystems in opposite ways. One of which is called disk mirroring, whereby two partitions are required on two different disks, both using a single hard disk controller.