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 today there are multiple choices in programs for managing updates and patches automatically or semi automatically. Security of the company assets is a primary source of concern for many businesses and enabling the latest security fixes provides enhanced security and functionality to the programs. Although these patches are essential they can be time consuming in larger operations if patch software management is not used.
This type of software will utilize a console usually on a single machine of a network. That console can control what fixes or patches are scanned for and how the patches are deployed throughout the system. Included in these software consoles are options also specify which from which sites a patch should be downloaded. Some management software companies maintain their own database of patches and fixes.
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 two broad types of management programs for patches that are used in both businesses and for home users. The first is an agent based patching solution. Agent based means simply that a small program is resident on each computer and scans the machine it is on, downloads the necessary patches and then reports to a central computer. This method is bandwidth intensive but mostly automated and efficient on a large scale.
Agentless management programs on the other hand are centralized. The main machine performs all the scans upon the network and initiates the actions to patch. While agentless software is certainly more centrally configurable and permits closer monitoring of network machines than an agent based option. The cost for these programs will be higher than that of the agent based solutions. They also will require more supervision than those with agents.
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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