After changing something in the TLS/SSL expert section, pihole is still working but web page does not.
Web GUI not working, should be working.
http://192.168.10:8080 shows Hmmm… can't reach this page
192.168.0.10 refused to connect.
Please also post your compose file, or docker run command used to start the container.
Hi @rdwebdesign, how do I get that command? I have Synology Container manager and Portainer but can't see anything obvious there or in StackOverflow.
If you don't know what a docker run is, it means you didn't type one to start your container.
I don't use Synology, but I also use Portainer. In Portainer, I start containers using a compose file, in the Stacks page:
Without a compose file or a detailed docker run command, you will need to explain exactly which options you used to start your container, including environment variables, volumes, ports, network mode (bridge, macvlan, host), etc.
Ok, gotcha. Mine is below.
docker run -d --name=pihole
-e WEB_PORT=8080
-e WEBPASSWORD=something
-e ServerIP=192.168.0.10
-e DNSMASQ_LISTENING=local
-v /volume2/docker/pihole/dnsmasq.d:/etc/dnsmasq.d
-v /volume2/docker/pihole/pihole:/etc/pihole
--net=host
--restart always
pihole/pihole
These variables are invalid for Pi-hole v6.
Please visit our documentation page (Docker - Upgrading from v5.x) to check which variables were changed and replace them accordingly.
Thanks for the info. I will review.
Looking at your debug log again, I can see the web server was initialized using port 8080, but there was a failure when the SSL was started:
[2025-07-27 01:28:12.945 UTC 52] Initializing HTTP server on ports "8080o,8443os,[::]:8080o,[::]:84"
[2025-07-27 01:28:12.945 UTC 52] Error initializing SSL context
This usually means your certificate is invalid.
I am not wanting SSL regardless.
I did just make some environment additions and subtractions. Current env edits from Portainer edit;
FTLCONF_webserver_port=8080,8443s
FTLCONF_webserver_api_password=something
DNSMASQ_LISTENING=local
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
DNSMASQ_USER=pihole
FTL_CMD=no-daemon
TZ=America/Chicago
FTLCONF_dns_upstreams=9.9.9.10;1.0.0.1
FTLCONF_debug_api=true
and current last few minutes log;
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * STATUS: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * CAPS: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * DNSSEC: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * VECTORS: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * RESOLVER: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * EDNS0: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * CLIENTS: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * ALIASCLIENTS: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * EVENTS: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * HELPER: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * CONFIG: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * INOTIFY: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * WEBSERVER: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * EXTRA: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * RESERVED: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * NTP: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: * NETLINK: NO *
2025-07-28 12:54:57.133 CDT [51M] DEBUG_ANY: ************************
2025-07-28 12:54:57.133 CDT [51M] INFO: 4 FTLCONF environment variables found (4 used, 0 invalid, 0 ignored)
2025-07-28 12:54:57.133 CDT [51M] INFO: [✓] FTLCONF_debug_api is used
2025-07-28 12:54:57.133 CDT [51M] INFO: [✓] FTLCONF_webserver_api_password is used
2025-07-28 12:54:57.134 CDT [51M] INFO: [✓] FTLCONF_webserver_port is used
2025-07-28 12:54:57.134 CDT [51M] INFO: [✓] FTLCONF_dns_upstreams is used
2025-07-28 12:54:57.135 CDT [51M] INFO: Wrote config file:
2025-07-28 12:54:57.135 CDT [51M] INFO: - 155 total entries
2025-07-28 12:54:57.135 CDT [51M] INFO: - 125 entries are default
2025-07-28 12:54:57.135 CDT [51M] INFO: - 30 entries are modified
2025-07-28 12:54:57.135 CDT [51M] INFO: - 3 entries are forced through environment
2025-07-28 12:54:57.319 CDT [51M] INFO: Parsed config file /etc/pihole/pihole.toml successfully
2025-07-28 12:54:57.320 CDT [51M] INFO: PID file does not exist or not readable
2025-07-28 12:54:57.320 CDT [51M] INFO: No other running FTL process found.
2025-07-28 12:54:57.320 CDT [51M] WARNING: Insufficient permissions to set process priority to -10 (CAP_SYS_NICE required), process priority remains at 0
2025-07-28 12:54:57.321 CDT [51M] INFO: PID of FTL process: 51
2025-07-28 12:54:57.321 CDT [51M] INFO: Not sleeping as system has finished booting
2025-07-28 12:54:57.322 CDT [51M] INFO: listening on 0.0.0.0 port 53
2025-07-28 12:54:57.322 CDT [51M] INFO: listening on :: port 53
2025-07-28 12:54:57.323 CDT [51M] INFO: PID of FTL process: 51
2025-07-28 12:54:57.323 CDT [51M] INFO: Database version is 21
2025-07-28 12:54:57.324 CDT [51M] INFO: Database successfully initialized
2025-07-28 12:54:58.658 CDT [51M] INFO: Imported 71651 queries from the on-disk database (it has 2110918 rows)
2025-07-28 12:54:58.658 CDT [51M] INFO: Parsing queries in database
2025-07-28 12:54:58.720 CDT [51M] INFO: 10000 queries parsed...
2025-07-28 12:54:58.766 CDT [51M] INFO: 20000 queries parsed...
2025-07-28 12:54:58.813 CDT [51M] INFO: 30000 queries parsed...
2025-07-28 12:54:58.854 CDT [51M] INFO: 40000 queries parsed...
2025-07-28 12:54:58.892 CDT [51M] INFO: 50000 queries parsed...
2025-07-28 12:54:58.944 CDT [51M] INFO: 60000 queries parsed...
2025-07-28 12:54:58.998 CDT [51M] INFO: 70000 queries parsed...
2025-07-28 12:54:59.006 CDT [51M] INFO: Imported 71646 queries from the long-term database
2025-07-28 12:54:59.006 CDT [51M] INFO: -> Total DNS queries: 71646
2025-07-28 12:54:59.006 CDT [51M] INFO: -> Cached DNS queries: 56927
2025-07-28 12:54:59.006 CDT [51M] INFO: -> Forwarded DNS queries: 8172
2025-07-28 12:54:59.006 CDT [51M] INFO: -> Blocked DNS queries: 4620
2025-07-28 12:54:59.006 CDT [51M] INFO: -> Unknown DNS queries: 0
2025-07-28 12:54:59.006 CDT [51M] INFO: -> Unique domains: 1856
2025-07-28 12:54:59.006 CDT [51M] INFO: -> Unique clients: 42
2025-07-28 12:54:59.006 CDT [51M] INFO: -> DNS cache records: 586
2025-07-28 12:54:59.006 CDT [51M] INFO: -> Known forward destinations: 5
2025-07-28 12:54:59.457 CDT [51M] INFO: NTP sync is disabled
2025-07-28 12:54:59.457 CDT [51M] INFO: FTL is running as user pihole (UID 1000)
2025-07-28 12:54:59.457 CDT [51M] DEBUG_API: Error pages path: /var/www/html/admin/
2025-07-28 12:54:59.457 CDT [51M] DEBUG_API: Prefix webhome path: /admin/
2025-07-28 12:54:59.457 CDT [51M] DEBUG_API: API URI path: /api
2025-07-28 12:54:59.457 CDT [51M] DEBUG_API: Admin API URI path: /admin/api
2025-07-28 12:54:59.457 CDT [51M] DEBUG_API: Login URI path: /admin/login
2025-07-28 12:54:59.457 CDT [51M] ERROR: Start of webserver failed!. Web interface will not be available!
2025-07-28 12:54:59.457 CDT [51M] ERROR: Error: Error initializing SSL context (error code 3.0)
2025-07-28 12:54:59.457 CDT [51M] ERROR: Hint: Check the webserver log at /var/log/pihole/webserver.log
2025-07-28 12:54:59.458 CDT [51M] INFO: Blocking status is enabled
2025-07-28 12:54:59.622 CDT [51/T82] INFO: Compiled 0 allow and 8 deny regex for 42 clients in 62.7 msec
If you don't need SSL and want to access the web interface only using http:// you can simply change the port to:
FTLCONF_webserver_port=8080
This will start the web server without SSL and the issue will be gone.
If you want to fix the SSL issue, you can try to delete the certificate files inside the container (/etc/pihole/tls.crt, /etc/pihole/tls.pem and /etc/pihole/tls_ca.crt) and restart the container.
If you change this line to FTLCONF_webserver_port=8080,8443so it will mark https as optional and allow pi-hole to start without it. You might find it easier to debug it this way.
Another option is to remove the certificate files and let pi-hole regenerate them. they are in /etc/pihole. you can remove them with sudo rm /etc/pihole/tls* from within the docker container. For the docker host, the command should be something like docker exec pihole rm /etc/pihole/tls*
Thanks I'll give it a try soon.
Thanks, I'll give it a try soon.
All good after changing env to FTLCONF_webserver_port=8080
Thanks to @rdwebdesign and @Ladrien for the assistance. Appreciated.
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