17. Security cameras

All of the cameras are divided up into genres that best describe their specifications and fixtures. Black and White security surveillance cameras are widely used in the security surveillance field.

Infrared Security Cameras are designed for optimum security and especially increased protection at night. With Infrared Security Cameras, we can see in total darkness, and they are great cameras for extremely low or non-lighted areas. The Day Night Infrared Security surveillance equipment section contains a variety of high tech CCTV(closed circuit TV) security surveillance cameras including Bullet and IR instrumentation.

Dome Security Cameras are ideal for use in building entrances, stores, and shopping malls. A Dome Camera offers high security and an increased surveillance capacity because of its non-invasive qualities. The Dome Security surveillance Cameras are a great way to achieve all your security surveillance needs in an effective way. The different kinds available are vandal proof exview high resolution, Sanyo day and night, Sony ruggedized day and night, Surveilux fixed lens, Vitek day/night vandal resistant dome, Vitek varifocal dome, indoor mini dome, dual voltage color surveillance cameras, auto iris camera lens, and alpha series indoor domes. Most CCTV security surveillance cameras are high resolution and of the best quality.

Bullet Security Cameras are a special type of a small and sleek camera that is ideal for both indoor and outdoor installation. Sealed in cylinders and totally protected, they are impermeable to water and are totally weatherproof. Mountable on the ceiling or on the wall, they provide sharp, detailed video images while maintaining low profile visibility and an unobtrusive presence.

Pan/Tilt/Zoom (PTZ) and Controllable Cameras are of the highest quality security surveillance cameras in the security surveillance field. PTZ and Controllable Cameras are designed to be controlled by remote or through a DVR. They have the ability to move up and down as well as right and left. You can pan, tilt, and zoom in or out. You have all the control you want over these cameras, and they provide excellent surveillance and security. Bosch AutoDome indoor CCTV security systems have optical zoom range varying from 26x to 18x and 12x digital zoom.

18. Security and performance management

Security management tools allow the network manager to restrict access to various resources, from the applications and files to the entire network itself; these generally offer password-protection schemes that give users different levels of access to different resources. For instance, a user in marketing could be allowed to view, or read a data file in accounting but not be permitted to change or write to it.

Security management is also important in managing the network itself – for instance, only certain individuals (such as network administrators) should be permitted to change configuration settings on a server or other key network devices.

Performance management tools produce real-time and historical statistical information about the network’s operation: how many packets are being transmitted at any given moment, the number of users logged into a specific server, and utilization of internetwork lines. As already noted, this type of information can help network administrators pinpoint areas or network segments that pose potential problems.

Most network operating systems (NOSs) provide some level of network management capabilities; in particular, almost all the leading NOSs offer password-protection schemes that limit users’ access to network resources. Novell, for instance, implements its NetWare management schemes through user profiles, which define not only the user’s access rights, but the users’ classifications (supervisor, workgroup manager, console operator, or user), which also determine the resources they can access.

In this scheme, a supervisor has access rights that allow reconfiguring and upgrading the entire system. The workgroup manager, available with NetWare 3.X, controls only the resources of a single user or user group. This concept allows a supervisor to distribute some of the responsibility for maintaining the network to others around a large network.