Tim: >> I tested using dig and nslookup, I already knew that they tell which >> server answered, they told me that the same one kept answering. Chris Adams: > Those tools are really for debugging of DNS itself, and they do not use > the normal resolver library (or at least not in the normal way). I > believe the "host" command does use the normal resolver (like any other > program). Using the host command (i.e. host -v example.com), was no different than using dig or nslookup, it always queried the first DNS server. I do notice that having "options rotate" in my /etc/resolv.conf file is upsetting my mail client (making it intermittently fail), so it does have some effect. And it doesn't seem to matter whereabouts I put the option in the command file (before, or after, the name servers) As part of the test, I put two DNS servers in the resolv.conf file, one of which cannot resolve my LAN addresses, and the mail client is using the LAN mail server. Unfortunately, that other DNS server doesn't provide logs (it's in the modem/router), so I can't tell what it's doing for absolute certain. But the mail client behaviour does point to the rotate option doing what it ought to. Oddly enough, it doesn't seem to be upsetting lynx, which should, also, randomly be unable to resolve a LAN webserver address. I'll have to try another test, later, when I have another computer with a proper DNS server installed on it, so I can watch access logs on two servers during queries. -- [tim@localhost ~]$ uname -rsvp Linux 3.6.6-1.fc17.x86_64 #1 SMP Mon Nov 5 21:59:35 UTC 2012 x86_64 All mail to my mailbox is automatically deleted, there is no point trying to privately email me, I will only read messages posted to the public lists. -- [tim@localhost ~]$ uname -rsvp Linux 3.6.6-1.fc17.x86_64 #1 SMP Mon Nov 5 21:59:35 UTC 2012 x86_64 All mail to my mailbox is automatically deleted, there is no point trying to privately email me, I will only read messages posted to the public lists. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org