<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Did you change the SOA serial number when you changed the zone content? You need to do that so the secondary knows there has been a change.<br><br>Ondrej<br><div dir="ltr"><div>--</div>Ondřej Surý — ISC (He/Him)<div><br></div><div>My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours.</div></div><div dir="ltr"><br><blockquote type="cite">On 25. 5. 2022, at 4:10, 边明凯 <bianmingkai@gmail.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr">Hi Jan-Piet,<div><br></div><div>Thank you for the feedback, I will sort it out and compose it again :</div><div><br></div><div><p dir="auto">I have run the DNS server by myself which installed centos7 and the bind version is BIND 9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.9 (Extended Support Version), the domain name is <a href="http://kaixinduole.com/" target="_blank">kaixinduole.com</a></p><p dir="auto">I just create a cname record for testing, which is www cname to <a href="http://www.baidu.com/" rel="nofollow noreferrer noopener" target="_blank">www.baidu.com</a>. please see the below :</p><p dir="auto"><br></p><img alt="image.png" width="562" height="350" src="cid:ii_l3ky23qy0"><p>you can see the testing below:</p><p><br></p><img alt="image.png" width="562" height="236" src="cid:ii_l3ky46jk1"></div><div>it should be cname to <a href="http://www.baidu.com" rel="nofollow noreferrer noopener">www.baidu.com</a> .but it actually responds with 1.1.1.1 <p>1.1.1.1 was the previous configuration,now I have already modified it to cname record . Is there any clue for this issue ?thanks <br></p></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, May 25, 2022 at 3:07 AM Jan-Piet Mens via bind-users <<a href="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">(I've tried to reformat some of this; it was illegible to me and I'm probably<br>
misreading some of it)<br>
<br>
>www IN CNAME <a href="http://www.baidu.com" rel="noreferrer" target="_blank">www.baidu.com</a>.<br>
<br>
> [root@centos7 ~]# dig <a href="http://www.kaixinduole.com" rel="noreferrer" target="_blank">www.kaixinduole.com</a> # it should be cname to<br>
<br>
You've not specified an address for dig to use so it's using your system's<br>
resolver, likely querying a caching server which is responding with a cached<br>
entry.<br>
<br>
-JP<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature">Best Regards <br><br>Bian Mingkai (边明凯)<br></div>
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