![]() #Angry ip scanner plugin PatchAngry ip scanner plugin Patch#īut why do administrators need to scan their own networks? There are plenty of answers: to check status of computers and various network devices (are they up or down), find spare addresses in statically-addressed networks, monitor the usage of server-type or P2P applications, make inventory of available hardware and software, check for recently discovered holes in order to patch them, and much more things that are even difficult to foresee.Īngry IP Scanner is widely-used open-source and multi-platform network scanner. As a rule, almost all such programs are open-source, because they are developed with the collaboration of many people without having any commercial goals. Secure networks are possible only with the help of open-source systems and tools, possibly reviewed by thousands of independent experts and hackers alike.Ĭertainly, there are other network scanners in existence (especially single-host port scanners), however, most of them are not cross-platform, are too simple and do not offer the same level of extensibility and user-friendliness as Angry IP Scanner. The program’s target audience are network administrators, consultants, developers, who all use the tool every day and therefore have advanced requirements for usability, configurability, and extensibility. However, Angry IP Scanner aims to be very friendly to novice users as well. Theory of network scanning NetworkingĬomputer networks, especially large ones, are very heterogeneous – they are composed of many interconnected devices into subnetworks using different topologies, which are in their own turn interconnected into larger networks, etc. The point here is that thanks to bridges between networks, all of them can use different physical (and data link) mediums for communication, with PPP over dial-up, IEEE 802.3 (Ethernet), and 802.11 (Wi-Fi) being the most popular. The famous OSI model defines seven layers of networking protocols. While the layers 3 and 4 are the most interesting to scanners – they are guaranteed to exist in any (IP-based) network regardless of physical mediums and provided higher level services, other layers can be interesting as well: local network scans can make use of the 1st and the 2nd layers in order to bypass higher level filtering. Higher level protocols are interesting because they are actually the ones users are most interested in, thus network scanners most often reach these layers too in order to detect the actual running services that make use of scanned network and transport endpoints (addresses and ports). ![]()
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