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Restart of pdns required after adding _dmarc

Discussion in 'Bind/DNS/Nameserver' started by rpvw, May 21, 2018.

  1. rpvw

    rpvw Well-Known Member

    Jul 18, 2013
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    Root Administrator
    cPanel v70.0.43 + Cloudlinux 2.6.32-896.16.1.lve1.4.53.el6.x86_64 + Kernelcare - using the standard Paper Lantern theme, and everything patched up-to-date.

    I have been struggling all day to get a new _dmark entry to resolve for a domain.

    The dmarc entry was recorded using the cPanel Zone Editor, and was reported as being successfully added, and could be seen as a new valid entry in the Zone Records list.

    Tried Synchronize DNS Records but this achieved nothing.
    Tried deleting and re-adding the record - nothing.
    Stole Infopro's whisky - didn't help :(

    Only after restarting the pdns DNS Server (PowerDNS) did the new dmarc entry get published.

    I have not tried publishing any other type of entry, so it is possible this is limited to _dmarc, but perhaps it needs checking out.

    I worry that users (who don't have access to restart daemons) will get frustrated if they make DNS entries in their cPanel Zone Editor, and then don't see a result.
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  2. cPanelLauren

    cPanelLauren Forums Analyst II Staff Member

    Nov 14, 2017
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    DataCenter Provider
    Hi @rpvw

    I've been attempting to replicate this today here's what I've done so far.

    1. Went to WHM>>Service Configuration>>Nameserver Selection and switched to power dns
    2. Went to cPanel>>Domains>>Zone Editor -> clicked manage next to the domain I wanted to modify
    3. pulled down the drop down next to Add Record and selected Add DMARC Record
    4. Added the default DMARC
    5. Used the search to find the dmarc record and ensure it existed
    6. Checked the DNS zone file for its existence:
    grep dmarc /var/named/
    _dmarc    14400    IN    TXT    v=DMARC1\;p=none\;sp=none\;adkim=r\;aspf=r\;pct=100\;fo=0\;rf=afrf\;ri=86400
    7. Used dig to check if it's been updated:
    dig txt +short
    And couldn't replicate it not being published. Throughout the entire time I didn't restart pdns either.
    You mention Synchronize DNS Records here - are you using a DNS Cluster?

    maybe @Infopro found out about the whiskey? :P
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    Infopro likes this.

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