Large corporations as well as small businesses have begun to turn to automated patch management software for security and updates. The average user has become used to the security updates and fixes and businesses have much more to secure against. The frequent patches and additions to the Windows operating system has accustomed the consumer to the need for fixes on a regular basis.
A computer user in a home environment will often allow Windows to automatically search for, and apply patches or security packs on an automatic basis. In the corporate or business environment, the same is true, however there are additional programs running that must also be fixed in order to ensure a system is up to date and secure. Taking the time to research and assess each program on each machine could be a task that consumed labor and expense for businesses prior to the introduction of patch software.
However the software patch management programs have taken much of the burden off the workforce and allow these operations to be configured and executed automatically. Whether a company has two machines or an entire network of machines spanning the nation, the need is the same, to keep up to date. While formerly one or more employees might be dedicated strictly to updating and securing all the machines in a location, new software programs have freed them for more profitable duties.
These programs usually have a special console and it may well be located on a single master machine on the network. The master console can determine which programs should be patched and which should be overlooked. The user can also determine from which website a patch should be downloaded.
A company with multiple machines may well have different purposes for each one and different programs installed as well. In that case the management software will scan each machine separately and apply the patches or fixes. Software to manage patches will usually intelligently apply only those patches necessary for the programs present on the machine.
There are generally two types of management software for patches. The first type is an agent based management solution. Management programs that use the agent have a program installed on each machine, which performs a scan of the machine. This agent then downloads and installs necessary fixes and then sends a message to the central machine concerning what programs are installed and updated.
Other types of management programs use a central machine as the controller. This central computer with a program on it scans each of the machines in the system applies the necessary system changes on the targeted computers in the network. This is known as agentless management in that the only requirement for the other machines is that they be connected to the network, instead of the internet as is required for agent based solutions. The agentless type of management software requires more direct supervision than the programs which reside on individual machines.
Whichever method is chosen the patch management software alternatives tend to save time and help improve security. This is particularly true when patching a large network with many machines. Before a decision is made in favor of agent or agentless software the business should assess the available work force, security needs and bandwidth of the company. While the agent based solution is more bandwidth intensive, it requires less supervision. The agentless method requires less bandwidth but is ultimately more controllable.
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