Site went down after using DNS CNAME

  • I’ve been developing a Linux site and using the free duckdns.org for m dynamic DNS. I had registered linuxhomeserver.duckdns.org while working on it, and registered linxhomeserver.com also. Tonight I decided to move it to the .com site, so logged into my domain name register and updated the CNAME record to point to linuxhomeserver.duckdns.org. After 30 minutes I was able to go to the .com address and see my site.

    I noticed that the links on it still said .duckdns.org, so I went into Settings> General and updated the WordPress Site and Site Address URL fields to be linuxhomeserver.com. After this the site went off the air. I get HTTP 500 error screens when I try browse to it, obviously I’ve done something wrong in changing the URL settings.

    I still have SSH access to the file system so can edit any files if needed. Can someone advise please how to fix this issue, where I went wrong and then how to properly set up DNS.

    The page I need help with: [log in to see the link]

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  • Moderator Steven Stern (sterndata)

    (@sterndata)

    Volunteer Forum Moderator

    You seem to have some misconfiguration. Once you resolve the DNS issues, you’ll need to use a plugin like “better search replace” (or wp-cli search-replace) to search for the old URL and replace with the new one throughout your site.

    $ nslookup linuxhomeserver.com
Server:		192.168.123.51
Address:	192.168.123.51#53

Non-authoritative answer:
Name:	linuxhomeserver.com
Address: 162.255.119.28

[sdstern@sds-desk ~]$ nslookup www.linuxhomeserver.com
Server:		192.168.123.51
Address:	192.168.123.51#53

Non-authoritative answer:
www.linuxhomeserver.com	canonical name = linuxhomeserver.duckdns.org.
Name:	linuxhomeserver.duckdns.org
Address: 54.37.10.145
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