<span class="Apple-style-span" style="font-size: large;">Dear sir</span><div><span class="Apple-style-span" style="font-size: large;"><br></span></div><div><span class="Apple-style-span" style="font-size: large;">I have set up dns tree hierarchy (since root server to child domain) for testing purpose.</span></div>
<div><span class="Apple-style-span" style="font-size: 14px;"><br></span></div><div><span class="Apple-style-span" style="font-size: 14px;"><span class="Apple-style-span" style="font-weight: bold;"><span class="Apple-style-span" style="font-style: italic;"><span class="Apple-style-span" style="text-decoration: underline;"><span class="Apple-style-span" style="color: rgb(255, 102, 102);">dns tree hierarchy</span></span></span></span></span></div>
<div><span class="Apple-style-span" style="font-size: 14px;"><br></span></div><div><span class="Apple-style-span" style="font-size: 14px;">root (10.10.91.201)->work.(10.10.91.202)->test.work.(10.10.91.203)</span></div>
<div><span class="Apple-style-span" style="font-size: 14px;"><br></span></div><div><span class="Apple-style-span" style="font-size: 14px;"><span class="Apple-style-span" style="font-weight: bold;"><span class="Apple-style-span" style="font-style: italic;"><span class="Apple-style-span" style="text-decoration: underline;"><span class="Apple-style-span" style="color: rgb(255, 102, 102);">root zone file content is</span></span></span></span></span></div>
<div><span class="Apple-style-span" style="font-size: 14px;"><br></span></div><div><span class="Apple-style-span" style="font-size: 14px;"><div><span class="Apple-style-span" style="color: rgb(51, 204, 255); ">$TTL 3600</span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 204, 255); ">@ IN SOA ns1.work. postmaster.work. (</span></div><div><span class="Apple-style-span" style="color: rgb(51, 204, 255); "> 2009030901 ;serial yyyymmddtt</span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 204, 255); "> 3H ;refresh</span></div><div><span class="Apple-style-span" style="color: rgb(51, 204, 255); "> 15M ;retry</span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 204, 255); "> 1W ;expiry</span></div><div><span class="Apple-style-span" style="color: rgb(51, 204, 255); "> 1D ;minimum ncache</span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 204, 255); "> )</span></div><div><span class="Apple-style-span" style="color: rgb(51, 204, 255); "> IN NS ns1.work.</span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 204, 255); "><br></span></div><div><span class="Apple-style-span" style="color: rgb(51, 204, 255); ">$ORIGIN work.</span></div><div><span class="Apple-style-span" style="color: rgb(51, 204, 255); ">@ IN NS ns1</span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 204, 255); ">ns1 IN A 10.10.91.202</span></div><div><span class="Apple-style-span" style="color: rgb(51, 204, 255); ">$ORIGIN com.</span></div><div>
<span class="Apple-style-span" style="color: rgb(51, 204, 255); ">@ IN NS ns1</span></div><div><span class="Apple-style-span" style="color: rgb(51, 204, 255); ">ns1 IN A 10.10.91.201</span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 204, 255);"><br></span></div></span></div><div><span class="Apple-style-span" style="font-size: 14px;"><br></span></div><div><span class="Apple-style-span" style="font-size: 14px;"><br>
</span></div><div><span class="Apple-style-span" style="font-size: 14px;"><br></span></div><div><span class="Apple-style-span" style="font-size: 14px;">1. At first I execute following command.</span></div><div><span class="Apple-style-span" style="font-size: 14px;"><div>
<span class="Apple-style-span" style="color: rgb(255, 102, 102);">[root@localhost ~]# dig @<a href="http://10.10.91.201">10.10.91.201</a> www.test.work +norecurse</span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);"><br>
</span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">; <<>> DiG 9.6.0-P1 <<>> @<a href="http://10.10.91.201">10.10.91.201</a> www.test.work +norecurse</span></div><div>
<span class="Apple-style-span" style="color: rgb(255, 102, 102);">; (1 server found)</span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; global options: +cmd</span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; Got answer:</span></div>
<div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48504</span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1</span></div>
<div><span class="Apple-style-span" style="color: rgb(255, 102, 102);"><br></span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; QUESTION SECTION:</span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;www.test.work. IN A</span></div>
<div><span class="Apple-style-span" style="color: rgb(255, 102, 102);"><br></span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; AUTHORITY SECTION:</span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">work. 3600 IN NS ns1.work.</span></div>
<div><span class="Apple-style-span" style="color: rgb(255, 102, 102);"><br></span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; ADDITIONAL SECTION:</span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">ns1.work. 3600 IN A 10.10.91.202</span></div>
<div><span class="Apple-style-span" style="color: rgb(255, 102, 102);"><br></span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; Query time: 3 msec</span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; SERVER: 10.10.91.201#53(10.10.91.201)</span></div>
<div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; WHEN: Wed Mar 11 00:41:38 2009</span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">;; MSG SIZE rcvd: 65</span></div>
<div><span class="Apple-style-span" style="color: rgb(255, 102, 102);"><br></span></div><div><span class="Apple-style-span" style="color: rgb(255, 102, 102);">[root@localhost ~]#</span></div><div><br></div></span></div><div>
<span class="Apple-style-span" style="font-size: 14px;"><br></span></div><div><span class="Apple-style-span" style="font-size: 14px;">2.After that I execute following command</span></div><div><span class="Apple-style-span" style="font-size: 14px;"><br>
</span></div><div><span class="Apple-style-span" style="font-size: 14px;"><div><span class="Apple-style-span" style="color: rgb(51, 102, 255);">[root@localhost ~]# dig @<a href="http://10.10.91.201">10.10.91.201</a> www.test.work +trace</span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 102, 255);"><br></span></div><div><span class="Apple-style-span" style="color: rgb(51, 102, 255);">; <<>> DiG 9.6.0-P1 <<>> @<a href="http://10.10.91.201">10.10.91.201</a> www.test.work +trace</span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 102, 255);">; (1 server found)</span></div><div><span class="Apple-style-span" style="color: rgb(51, 102, 255);">;; global options: +cmd</span></div><div><span class="Apple-style-span" style="color: rgb(51, 102, 255);">. 3600 IN NS ns1.work.</span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 102, 255);">;; Received 38 bytes from 10.10.91.201#53(10.10.91.201) in 2 ms</span></div><div><span class="Apple-style-span" style="color: rgb(51, 102, 255);"><br></span></div>
<div><span class="Apple-style-span" style="color: rgb(51, 102, 255);">dig: couldn't get address for 'ns1.work': not found</span></div><div><span class="Apple-style-span" style="color: rgb(51, 102, 255);">[root@localhost ~]#</span></div>
<div><br></div></span></div><div><span class="Apple-style-span" style="font-size: 14px;"><br></span></div><div><br></div><div><span class="Apple-style-span" style="font-size: 14px;"><div>I have already added A record for ns1.work. but why when I execute dig with +trace option it return error "<span class="Apple-style-span" style="color: rgb(51, 102, 255); ">dig: couldn't get address for 'ns1.work': not found<span class="Apple-style-span" style="color: rgb(0, 0, 0); ">".How can I fix it?</span></span></div>
<div><br></div><div><br></div></span></div><div><span class="Apple-style-span" style="font-size: large;">Jittinan</span></div>