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In computer science, a lock or mutex (from mutual exclusion) is a synchronization primitive that prevents state from being modified or accessed by multiple threads of execution at once. Locks enforce mutual exclusion concurrency control policies, and with a variety of possible methods there exist multiple unique implementations for different ...
Businesses, organizations and other entities use a wide spectrum of logical access controls to protect hardware from unauthorized remote access. These can include sophisticated password programs, advanced biometric security features, or any other setups that effectively identify and screen users at any administrative level.
In some out-of-band systems, agents are distributed on end-stations and report information to a central console, which in turn can control switches to enforce policy. In contrast the inline solutions can be single-box solutions which act as internal firewalls for access-layer networks and enforce the policy. Out-of-band solutions have the ...
You can use either of the following ways to disable Norton™ Internet Security 2009. Using the Windows taskbar; Using the Programs menu; Using the Windows taskbar 1. On the Windows taskbar, next to the clock, right-click the Norton icon, and then click Disable Smart Firewall.
Common physical security access control with a finger print A sailor checks an identification card (ID) before allowing a vehicle to enter a military installation.. In physical security and information security, access control (AC) is the selective restriction of access to a place or other resource, while access management describes the process.
In computer security, general access control includes identification, authorization, authentication, access approval, and audit.A more narrow definition of access control would cover only access approval, whereby the system makes a decision to grant or reject an access request from an already authenticated subject, based on what the subject is authorized to access.
In the 1980s and early 1990s, IBM Personal Computers and some PC compatibles included a tubular pin tumbler lock on the computer's casing, performing a security function that varied by manufacturer. In some instances, the lock would prevent the case from being opened to inhibit the theft or modification of internal components.
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