Built-in System Account: Local System/Network Service/Local Service

 

LocalSystem account

LocalSystem is a preset local account with all permissions on the local machine. This account is not associated with a common user account, nor has creden。 such as usernames and passwords. This service account can open the HKEY_LOCAL_MACHINE \ Security Key of the Registry. When LocalSystem accesses network resources, it is used as the domain account of the computer.

For example, services running with LocalSystem accounts mainly include windowsupdate client, ClipBook, COM +, DHCP Client, messenger service, task scheduler, Server Service, Workstation Service, and Windows installer.

Network Service account

A network service account is a preset local account with local permissions. It can access network resources in the name of a computer. However, he does not have as many permissions as the local system. services running in this account will submit access creden。 to remote computers according to the actual environment. A network service account can usually access the network service and everyone groups, as well as resources authorized to access authenticated users.

For example, the services run with the network service account include Distributed Transaction Coordinator, DNS Client, Performance Logs and alerts, and RPC Locator.

Local Service account

A local service account is a preset local account with the minimum permissions and has an anonymous identity in the network credential. The local service account can usually access the local service, the Everyone group, and the resources authorized to access authenticated users.

For example, services running with a local service account include Alerter, Remote Registry, smart card, SSDP, and WebClient.

 

 

Simple Description:

Local System: user of the local system. This user is usually selected on a personal computer.

Network Service: a network service user, which is usually used for remote connection.

Local Service: Local Service

Another user that requires the user name and password is a domain user, which is the login method selected for cluster creation.

 

Http://www.cnblogs.com/xianspace/archive/2009/04/05/1429835.html