Peter, Thomas, thanks for your suggestion. I did indeed look broader than whois, and reverse DNS maybe a better description. Unfortunately I did try the socket.gethostbyaddr("194.109.137.226"), but the result was a disappointing "host not found", both at home on an XP machine as well as at work on a NT machine. Your comments stimulated me too experiment with this apporach, and I discovered that unresolved IP addresses in my old logfiles return "host not found". However many IP addresses in my new logfile can be translated successfully! Apparantly there are IP addresses that cannot be reversely resolved by the DNS servers. I did translate these addresses manually so far via the whois service. So you definitely helped me a lot, but I keep interested in a complementary whois solution.
kind regards, Gerrit > Gerrit Muller wrote: > >> I am migrating a website from a UNIX based machine to an Windows >> machine. In the logfiles I got from the old machine I mostly got >> domain names and sometimes only IP addresses. The Windows machine >> seems to produce only IP addresses. >> >> Somehow I cannot find a windows solution to translate an IP address >> back into a domain-name. Searching with Google shows that more people >> have been wrestling with this problem. >> >> I did find working whois scripts, but unfortunately: > > [snip] > > Part of your problem is looking for the wrong thing. You are looking > for the capability provided by "domain name servers" (DNSes), not > "whois" servers. But Thomas has just given you the solution... > > -Peter -- Gaudi systems architecting: <http://www.extra.research.philips.com/natlab/sysarch/> -- http://mail.python.org/mailman/listinfo/python-list