El miÃ, 09-03-2005 a las 07:25 +0100, Sebastian Docktor escribiÃ: > Hi, > > I want to allow a Dynamic DNS Client to Access the SSH-Server > on my Firewall. But I don't want to open SSH for all IPs, > Is it possible that iptables always looks up the ip address from the > hostname, so that only the ip has access which is registrated under > the dyndns? I don't understand your problem. If you know your IP you can block based on that IP. DNS, dynamic or not, has nothing to do with that. Just everytime you change your IP use the scripts used to to that to update the iptables rules, it can be even done if you are using DHCP to get the IP. Regards. -- Jose Maria Lopez Hernandez Director Tecnico de bgSEC jkerouac@xxxxxxxxx bgSEC Seguridad y Consultoria de Sistemas Informaticos http://www.bgsec.com ESPAÃA The only people for me are the mad ones -- the ones who are mad to live, mad to talk, mad to be saved, desirous of everything at the same time, the ones who never yawn or say a commonplace thing, but burn, burn, burn like fabulous yellow Roman candles. -- Jack Kerouac, "On the Road"