On Wednesday 02 September 2009 21:11:20 Paul Hartman wrote: > On Wed, Sep 2, 2009 at 9:11 AM, Helmut Jarausch<[email protected]> wrote: > > Hi, > > > > I'd like to allow remote access (via ssh only) to a given machine. > > Unfortunately, my remote IP is dynamic and reverse lookup > > (e.g. specifying only_from = .skynet.be in /etc/xinetd.conf) doesn't > > work. So, I have to find out which IP ranges are used by a given > > internet provider (e.g. skynet.be). > > > > Does anybody know how to find out? > > > > Many thanks for a hint, > > Helmut. > > Easiest way: ask them to tell you the ranges :) Otherwise would be > guessing. You can look at arin (or local equivalent) to see which IP > range(s) they own. But nobody knows for sure other than them.
Two solutions: 1. Put your host into dyndns and ssh to that name 2. You can ask peering routers for an ISP's IP range (it's public info and has to be that way). I forget the exact commands, but a mail thread on a different list covered this exact thing a while ago. You'll have to search the Glug-tech mail archives at http://www.linux.org.za/Lists-Archives/ from about 6 to 9 months back. Relevant search terms are "jinx" and "jaco kroon" -- alan dot mckinnon at gmail dot com
