The Doctor Is In

Oct. 8, 2017 0 comments ADMIN Magazine Pen Testing & Audits firewall

One of the main problems with regular port scans on a large network is the overhead: Depending on the number of servers, the list of open ports can quickly scale to a point that is impossible to track manually. Watching the whole network requires careful, and thus very time consuming, scrutiny of the scan results, and in many cases, you will not have the staff to expend the necessary attention. Additionally, many organizations lack a precisely defined, centrally available target state with which to compare the results, especially if individual departments are allowed to set up their own servers and services. If you use different scanner locations to analyze your networks (e.g., one location within the organization and one across the Internet), you also face the problem of interpreting different lists of results. Inconsistencies arise because of connections blocked by firewalls and scans occurring at the different times. Reconciling the results requires manual evaluation. An open sou...

http://www.admin-magazine.com/Articles/Managing-Port-Scan-Results-with-Dr.-Portscan/(tagID)/2