Patch management software has become more popular over recent years with businesses both large and small. Frequent fixes to the windows operating System fix security issues and sometimes add functionality to the programs. They have also gotten the consumer used to the fact that most programs require patches.
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.
The software will normally contain a console where administrator preferences can be set. That means the administrator can determine which programs should be updated and scanned and those which can be ignored. There are usually options to choose a patch download site in the console area as well.
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.
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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