search for: revdns

Hi list, I first apologise because this is really off topic, but I would really appreciate your opinion on this. I have had a very hard time configuring a DNS server to answer reverse dns queries, and I would like to have your opinion on my provider behaviour. We have 3 classless subnets and asked the provider to delegate reverse dns. They configured their server and emailed me all was fine

...up some aliases and at leas one of them is secure. I propose an alternative way which even seems more robust as far as multihoming is concerned. 1. Get the name from the command line. 2. Connect the host. 3. Ask the socket for the address of the remote host (important for multihoming) 4. Make revDNS query to get the "real name". 5. Look for an SSHFP for the "real name". Of course this procedure might (I have not analysed it carefully) pose some security risks so it should be optional. Or even more, it should be allowed only for some hosts based on both IP and name (eg. *.e...