Quoting Simon Bolduc <[EMAIL PROTECTED]>: > I'm not sure if this would be possible but: > > Wouldn't it be possible to do a reverse lookup on all blocked IPs (via a > script) when they are blocked, add it to a file, and then every few > hours do another lookup to see if the FQDN associated with the IP has > changed -(if it has then remove it from list)? This does of course assume > that the FQDN associated with a dynamic IP changes when the lease does.
It's certainly possible to do the reverse DNS lookups - but there's nothing stating that hosts on the internet have to have a reverse DNS record. Also, ISPs that do use reverse DNS often have the reverse DNS linked to the IP address rather than a particular user account - for example dial up users to the ISP I use are given a DNS name of xxx-xxx-xxx-xxx.dialup.paradise.net.nz which is bound to the IP they are given when dialing up. Richard _______________________________________________ Leaf-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/leaf-user
