Stephen Turner <[EMAIL PROTECTED]> wrote: > On Fri, 14 Jun 2002, Aengus wrote: >> >> If you use a 3rd party tool like QDNS, you can strip out addresses >> that were marked as unresolved, and try again. Addresses that were >> resolved the first time will still be in the file, and so won't be >> looked up, but addressed that weren't resolved the first time will >> be treated as "new", and will be looked up, and some of them may >> resolve on the second run. (You could probably do the same with >> Analog by using grep or findstring to discard all the lines with "*" >> in the DNS cache file). > > That's what analog's DNSGOODHOURS and DNSBADHOURS do.
If you want to catch the handful of "slow" IP addresses that didn't resolve the first time, but might resolve a second time, you could set DNSBADHOURS to 1, but you'd still have to wait for an hour before you tried again. But I think the issue is somewhat moot - given that upwards of 1/3 of all addresses fail to resolve, there isn't really that much point in trying to pick up a handful of "slow" ip addresses by doing a second run of lookups immediately after the first. Aengus +------------------------------------------------------------------------ | This is the analog-help mailing list. To unsubscribe from this | mailing list, go to | http://lists.isite.net/listgate/analog-help/unsubscribe.html | | List archives are available at | http://www.mail-archive.com/[email protected]/ | http://lists.isite.net/listgate/analog-help/archives/ | http://www.tallylist.com/archives/index.cfm/mlist.7 +------------------------------------------------------------------------
