| Headlines |
| 2020-10-14 |
IPFire explores IP address lookups |
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Being able to look up information on an IP address, such as the physical location where it originated, is a common practise which can help developers determine which version of a website to show. It can also help security software determine whether to block or flag unexpected access attempts. The IPFire team has put together a set of tools to help deal with IP location lookups and they have published a blog post about their solution: "Many target applications for our library need to be fast. Nobody likes to wait for a website to load, but more importantly, applications like an Intrusion Prevention System need to be able to handle a large number of packets a second. If a source IP address needs to be classified by using libloc, this can only take a couple of nanoseconds. A millisecond would already cause a performance impact and connections would take too long to establish. That is why the goal was that the database needed to be searchable in O(1) - or for those who are not familiar with Landau symbols: every search should take the same time, no matter where in the database the object is stored." The blog goes on to outline the problems and solutions the IPFire developers explored. |
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