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On Wednesday 02 September 2009, walt wrote: |
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> On 09/02/2009 07:11 AM, Helmut Jarausch wrote: |
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> > Hi, |
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> > |
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> > I'd like to allow remote access (via ssh only) to a given machine. |
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> > Unfortunately, my remote IP is dynamic and reverse lookup |
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> > (e.g. specifying only_from = .skynet.be in /etc/xinetd.conf) doesn't |
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> > work. So, I have to find out which IP ranges are used by a given |
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> > internet provider (e.g. skynet.be). |
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> > |
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> > Does anybody know how to find out? |
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> |
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> Here's a quick and dirty trick: |
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> |
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> $host skynet.be |
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> skynet.be has address 195.238.10.70 |
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> |
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> $whois -H 195.238.10.70 |
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> <snip> |
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> % Information related to '195.238.0.0 - 195.238.31.255' |
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> inetnum: 195.238.0.0 - 195.238.31.255 |
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> netname: SKYNET-B |
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> descr: Belgacom SA/NV |
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> descr: Internet access provider |
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> |
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> As Paul said, though, asking them is more accurate. |
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|
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Most ISPs have a web accessible control panel which should indicate which IP |
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address you currently have. Alternatively, you can have your home |
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server/router pinging an external server every 15 minutes or so and check the |
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incoming logs of the external server for the change of the incoming IP |
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address. The DynDNS solution must be the simplest though. |
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-- |
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Regards, |
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Mick |
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