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</o:shapelayout></xml><![endif]--></head><body lang=DE link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi all!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-GB>I’m really despairing on a configuration, and start to wonder if it is possible at all.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Running Bind 9.5.5, I want to serve IP-Addresses for my internal network only, and none from the internet, except for a few domains. The idea is I don’t want any intranet client to be able to resolve Internet addresses, except for a few domains like Microsoft.com and others.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>My named.config looks like this (shortened, copied together from multiple files including others):<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'>acl intranet_nets {<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> 192.168.94.0/24;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> 192.168.1.0/24;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> 192.168.5.0/24;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> };<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'>options {<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> directory "/var/cache/bind";<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> allow-query { localhost; intranet_nets;};<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> allow-query-cache { localhost; intranet_nets;};<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt;text-indent:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'>recursion no; # switching this on would resolve ANY Internet address, which I don’t want<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> dnssec-validation auto;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> auth-nxdomain no; # conform to RFC1035<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> listen-on-v6 { any; };<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'>};<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'>zone "corp.intranet.de" { <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> type master; <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> file "/etc/bind/db.corp.intranet.de";<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> allow-transfer { 192.168.94.242; }; <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> allow-update { none;};<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> };<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'>zone "94.168.192.in-addr.arpa" { <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> type master; <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> file "/etc/bind/db.94.168.192"; <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> allow-transfer { 192.168.94.242; }; <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> allow-update { none;}; <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'> };<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'>zone "microsoft.com" IN {<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt;text-indent:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'>type forward;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt;text-indent:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'>forwarders { 9.9.9.9; 194.150.168.168; 8.8.8.8; 8.8.4.4; }; <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt;text-indent:35.4pt'><span lang=EN-GB style='font-family:"Courier New"'>};<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Running this configuration, my local addresses are correctly resolved, external addresses not (good), but DNS-requests for the domain Microsoft.com neither (bad!).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>I actually wonder if “forward” is the right keyword (is forward = answer to the client: “don’t ask me, ask one of the forwarders” ???), or if I’m totally on the wrong way.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Any support on how to implement this setup is highly appreciated,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB> Sig<o:p></o:p></span></p></div></body></html>