Date: Fri, 11 Aug 2006 00:01:25 +0200 From: =?ISO-8859-1?Q?Erik_N=F8rgaard?= <norgaard@locolomo.org> To: beno <zope@2012.vi> Cc: freebsd-questions@freebsd.org Subject: Re: Finding IP Addresses (OT) Message-ID: <44DBACB5.30001@locolomo.org> In-Reply-To: <44DB99A5.800@2012.vi> References: <44DB7888.6080807@2012.vi> <44DB7A60.5060208@locolomo.org> <44DB99A5.800@2012.vi>
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This is a cryptographically signed message in MIME format. --------------ms040206050201020908000200 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit beno wrote: > Erik Nørgaard wrote: >> Lookup the ip with whois you'll get a network segment that has been >> delegated. You ISP may have multiple such segments, but it get's you >> further faster than finding individual ip's. >> > Thanks. I also realized I should do the same for the Internet cafe I > work at when the power's out. Since I live in the Dominican Republic > (although bounce off a satellite that thinks I'm in the states), that's > a little more problematic. What do you suggest? I tried these > combinations with no luck: > > whois -c do verizon.net.do > whois -d verizon.net.do I'd go for ip/network lookup and not domains as these are more geographically fixed. Also, you can't be certain to get all the ip's by doing domain lookup as some may not be included. I understand you want to restrict access to where you're likely to connect? Networks are delegated by IANA and local registries. Some are then delegated to national registries or directly to major corps. Major corps and regional registries can be found here: http://www.iana.org/assignments/ipv4-address-space but this only lists /8 netblocks. >From each regional registry, you can download lists of the delegated network addresses. For the Dom. Rep. you should find your self under ARIN (www.arin.net), which includes US, ftp://ftp.arin.net/pub/stats/arin/delegated-arin-latest however, this doesn't show to whom it has been delageted. In the end, combining the different info should help you: You know one ip, check which block it belongs to that have been assigned by ARIN and use whois to verify. Cheers, Erik -- Ph: +34.666334818 web: http://www.locolomo.org X.509 Certificate: http://www.locolomo.org/crt/8D03551FFCE04F0C.crt Key ID: 69:79:B8:2C:E3:8F:E7:BE:5D:C3:C3:B1:74:62:B8:3F:9F:1F:69:B9 --------------ms040206050201020908000200 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIL5jCC Be8wggPXoAMCAQICCQCNA1Uf/OBPDDANBgkqhkiG9w0BAQUFADCBmTELMAkGA1UEBhMCRVMx GDAWBgNVBAoTD0RhZW1vbiBTZWN1cml0eTEeMBwGA1UECxMVQ2VydGlmaWNhdGUgQXV0aG9y aXR5MR4wHAYDVQQDExVDZXJ0aWZpY2F0ZSBBdXRob3JpdHkxJDAiBgkqhkiG9w0BCQEWFWNh QGRhZW1vbnNlY3VyaXR5LmNvbTEKMAgGA1UEBRMBMDAeFw0wNjA0MjAxMzE2NTBaFw0wNzA0 MjAxMzE2NTBaMGIxCzAJBgNVBAYTAkVTMRUwEwYDVQQKEwxMb2NvTG9tby5PcmcxFjAUBgNV BAMTDUVyaWsgTm9yZ2FhcmQxJDAiBgkqhkiG9w0BCQEWFW5vcmdhYXJkQGxvY29sb21vLm9y 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