Re: whois like functionality on Windows?
Peter Hansen wrote: If the address doesn't get mapped to a name by a DNS server, I strongly suspect you will get nowhere with whois, or much else. Not all IP addresses have corresponding domain names: many are dynamic addresses assigned on the fly to arbitrary customers of (for example) cable modem service providers, and they're often not interested in providing any reverse mapping for them. Some do (for example, mine is pc-136-15.scpe.powergate.ca right now), but many don't... I'm sure there's a way to identify the domain of the owner of a block of addresses in which a given IP resides. I don't know what it is. -Peter In 5 years of logging I did get about 23000 different domains that accessed my site. For about 1000 IP address ranges I obtained the domain name manually via whois, mostly via Geektools. Sometimes via more specific whois servers, such as krnic. These 1000 domain names are a mix of real domain names, for instance from companies, universities or government, and service providers. It would be nice to automate this action, although the manual approach is workable. regards, Gerrit -- Gaudi systems architecting: http://www.extra.research.philips.com/natlab/sysarch/ -- http://mail.python.org/mailman/listinfo/python-list
Re: whois like functionality on Windows?
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
Re: whois like functionality on Windows?
Gerrit Muller wrote: 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. If the address doesn't get mapped to a name by a DNS server, I strongly suspect you will get nowhere with whois, or much else. Not all IP addresses have corresponding domain names: many are dynamic addresses assigned on the fly to arbitrary customers of (for example) cable modem service providers, and they're often not interested in providing any reverse mapping for them. Some do (for example, mine is pc-136-15.scpe.powergate.ca right now), but many don't... I'm sure there's a way to identify the domain of the owner of a block of addresses in which a given IP resides. I don't know what it is. -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: whois like functionality on Windows?
Gerrit Muller [EMAIL PROTECTED] writes:
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:
- the verbose whois registrar information often forbids automated access
- the information is rather distributed, so you have to somehow access
sufficient servers
- you still have to find the domain name in the sea of details returned
I also found socket based solutions, but these solutions crash with
the message host not found :-(
Anyone suggestions?
This?
C:\py23
Python 2.3.5 (#62, Feb 8 2005, 16:23:02) [MSC v.1200 32 bit (Intel)] on win32
Type help, copyright, credits or license for more information.
import socket
socket.gethostbyaddr(194.109.137.226)
('fang.python.org', [], ['194.109.137.226'])
Thomas
--
http://mail.python.org/mailman/listinfo/python-list
Re: whois like functionality on Windows?
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 -- http://mail.python.org/mailman/listinfo/python-list
