warn [cphttpd] proxy trust miss: replacing loopback HTTP_HOST with 'dns_only_hostname'

Hello,

We're seeing some unusual errors following the latest updates to our DNS Only nameserver

During UPCP the following files were updated:

[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] Upgraded:
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] bind-32:9.16.23-40.el9_8.2.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] bind-devel-32:9.16.23-40.el9_8.2.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] bind-dnssec-doc-32:9.16.23-40.el9_8.2.noarch
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] bind-dnssec-utils-32:9.16.23-40.el9_8.2.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] bind-libs-32:9.16.23-40.el9_8.2.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] bind-license-32:9.16.23-40.el9_8.2.noarch
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] bind-utils-32:9.16.23-40.el9_8.2.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] kernel-headers-5.14.0-687.15.1.el9_8.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] kernel-tools-5.14.0-687.15.1.el9_8.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] kernel-tools-libs-5.14.0-687.15.1.el9_8.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] libldb-4.23.5-10.el9_8.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] libwbclient-4.23.5-10.el9_8.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] poppler-21.01.0-24.el9_8.1.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] poppler-glib-21.01.0-24.el9_8.1.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] python3-bind-32:9.16.23-40.el9_8.2.noarch
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] python3-perf-5.14.0-687.15.1.el9_8.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] samba-client-libs-4.23.5-10.el9_8.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] samba-common-4.23.5-10.el9_8.noarch
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] samba-common-libs-4.23.5-10.el9_8.x86_64
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] sos-4.11.0-1.el9_8.noarch
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages]
[2026-06-13 00:43:49 +1000] [/usr/local/cpanel/scripts/update-packages] Complete!
[2026-06-13 00:43:49 +1000] - Finished command `/usr/local/cpanel/scripts/update-packages` in 10.086 seconds

In the hourly logs since that update, every 5 minutes the following line is repeated in the cpanel error_log

/usr/local/cpanel/logs/error_log:
[2026-06-13 01:03:52 +1000] warn [cphttpd] proxy trust miss: replacing loopback HTTP_HOST with ns2.our_nameserver.com.au

Edit: There's also one instance on our main server too but much earlier in the day and it hasn't surfaced in any of the subsequent hourly issued logs sent to us by LFD, the DNS only server is the only repeat offender.

Thanks

cPRex Jurassic Moderator

June 15, 2026 15:17

Hey there! What version of cPanel is that DNSOnly system running? This is a recent issue we're tracking at https://support.cpanel.net/hc/en-us/articles/41175199405463-Dynamic-DNS-reporting-incorrect-IP-address but I'm expecting it to be resolved in the latest update.

bloatedstoat

June 16, 2026 00:26

cPRex thanks for the update.

OS AlmaLinux v9.8.0 DNSONLY kvm
cPanel Version 136.0.23

Ioannis Savvopoulos

June 16, 2026 11:21

Do you even test your updates at this point?

Kyle Klotz updated the case id CPANEL-53986 and stated that the issue has been resolved at 12/06 on the following versions:

11.136.0.23 and higher
11.134.0.40 and higher
11.126.0.73 and higher
11.110.0.130 and higher

But the issue persists. Multiple machines with different OS running latest version of cPanel still fail to report the correct IP address and logging:

proxy trust miss: replacing loopback HTTP_HOST with $HOSTNAME

June 16, 2026 20:17

I did reach out to the team abut this and we're expecting the issue to be fixed at this point. Could you create a ticket so we can examine one of the affected systems?

June 16, 2026 23:11

cPRex just tried to open a ticket but I get "Invalid or Unlicensed IP Address" for our DNS Only server so can't move forward after that mate. It's only affecting our DNS Only server.

June 16, 2026 23:34

Since it's a DNSOnly system you can just email cs@cpanel.net and they should be able to help you get started with the support process.

June 17, 2026 00:55

G'day @cpRex the ticket id is 96026849

Thank you.

June 17, 2026 06:58

"The message can safely be ignored , but if you wish to remove it, you can disable the service that is generating it. The service is cphttpd and it is not needed for DNSonly server and will not cause issues with accessing WHM on the DNSonlys server."

You can find the steps to disable it from the article here -> How do I disable cphttpd?

Please pass on thanks to CP Vladimir.

June 17, 2026 15:41

I'm glad we were able to help!

warn [cphttpd] proxy trust miss: replacing loopback HTTP_HOST with 'dns_only_hostname'

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