Hello ,
I have installed pihole on a Debian 12 server. (Apache is already installed.) A domain is already running on the server (WEbserver is running). http://example.com
when I open Pihole webadmin top links DNS service not running. is red.
Pi-hole diagnosis gives error ==>>> DNSMASQ_CONFIG FTL failed to start due to failed to create listening socket for port 53: Address already in use.
If I use other ports, for example: port 5335 FTL starts but at the top left DNS service port 5335 is running and the color is yellow.
Doesn't block any websites at all.
lsof -nP -i4TCP:53
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
named 668 bind 45u IPv4 17731 0t0 TCP 127.0.0.1:53 (LISTEN)
named 668 bind 46u IPv4 17732 0t0 TCP 127.0.0.1:53 (LISTEN)
named 668 bind 48u IPv4 17733 0t0 TCP 127.0.0.1:53 (LISTEN)
named 668 bind 50u IPv4 17734 0t0 TCP 127.0.0.1:53 (LISTEN)
named 668 bind 57u IPv4 19549 0t0 TCP 192.168.178.115:53 (LISTEN)
named 668 bind 58u IPv4 19550 0t0 TCP 192.168.178.115:53 (LISTEN)
named 668 bind 59u IPv4 19551 0t0 TCP 192.168.178.115:53 (LISTEN)
named 668 bind 60u IPv4 19552 0t0 TCP 192.168.178.115:53 (LISTEN)
lsof -i -P -n | grep LISTEN
memcached 667 memcache 22u IPv4 16972 0t0 TCP 127.0.0.1:11211 (LISTEN)
named 668 bind 40u IPv4 19561 0t0 TCP 127.0.0.1:953 (LISTEN)
named 668 bind 45u IPv4 17731 0t0 TCP 127.0.0.1:53 (LISTEN)
named 668 bind 46u IPv4 17732 0t0 TCP 127.0.0.1:53 (LISTEN)
named 668 bind 48u IPv4 17733 0t0 TCP 127.0.0.1:53 (LISTEN)
named 668 bind 50u IPv4 17734 0t0 TCP 127.0.0.1:53 (LISTEN)
named 668 bind 57u IPv4 19549 0t0 TCP 192.168.178.115:53 (LISTEN)
named 668 bind 58u IPv4 19550 0t0 TCP 192.168.178.115:53 (LISTEN)
named 668 bind 59u IPv4 19551 0t0 TCP 192.168.178.115:53 (LISTEN)
named 668 bind 60u IPv4 19552 0t0 TCP 192.168.178.115:53 (LISTEN)
named 668 bind 65u IPv6 19557 0t0 TCP [::1]:53 (LISTEN)
named 668 bind 66u IPv6 19558 0t0 TCP [::1]:53 (LISTEN)
named 668 bind 67u IPv6 19559 0t0 TCP [::1]:53 (LISTEN)
named 668 bind 68u IPv6 19560 0t0 TCP [::1]:53 (LISTEN)
named 668 bind 69u IPv4 19562 0t0 TCP 127.0.0.1:953 (LISTEN)
named 668 bind 70u IPv4 19563 0t0 TCP 127.0.0.1:953 (LISTEN)
named 668 bind 71u IPv4 19564 0t0 TCP 127.0.0.1:953 (LISTEN)
named 668 bind 72u IPv6 19565 0t0 TCP [::1]:953 (LISTEN)
named 668 bind 73u IPv6 19566 0t0 TCP [::1]:953 (LISTEN)
named 668 bind 74u IPv6 19567 0t0 TCP [::1]:953 (LISTEN)
named 668 bind 75u IPv6 19568 0t0 TCP [::1]:953 (LISTEN)
named 668 bind 84u IPv6 21529 0t0 TCP [fe80::4e52:62ff:fe37:e5de]:53 (LISTEN)
named 668 bind 87u IPv6 21530 0t0 TCP [fe80::4e52:62ff:fe37:e5de]:53 (LISTEN)
named 668 bind 88u IPv6 21531 0t0 TCP [fe80::4e52:62ff:fe37:e5de]:53 (LISTEN)
named 668 bind 89u IPv6 21532 0t0 TCP [fe80::4e52:62ff:fe37:e5de]:53 (LISTEN)
Plex\x20M 677 plex 10u IPv4 19193 0t0 TCP *:32400 (LISTEN)
Plex\x20M 677 plex 11u IPv4 17900 0t0 TCP 127.0.0.1:32401 (LISTEN)
sshd 700 root 3u IPv4 19121 0t0 TCP *:22 (LISTEN)
sshd 700 root 4u IPv6 19123 0t0 TCP *:22 (LISTEN)
mariadbd 835 mysql 26u IPv4 17906 0t0 TCP *:3306 (LISTEN)
mariadbd 835 mysql 27u IPv6 17907 0t0 TCP *:3306 (LISTEN)
apache2 958 root 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 958 root 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 958 root 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
apache2 964 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 964 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 964 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
apache2 1037 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 1037 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 1037 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
apache2 1038 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 1038 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 1038 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
pure-ftpd 1041 root 4u IPv4 18128 0t0 TCP *:21 (LISTEN)
pure-ftpd 1041 root 5u IPv6 18129 0t0 TCP *:21 (LISTEN)
apache2 1042 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 1042 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 1042 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
apache2 1043 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 1043 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 1043 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
apache2 1044 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 1044 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 1044 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
Plex\x20S 1056 plex 7u IPv4 18370 0t0 TCP 127.0.0.1:39611 (LISTEN)
master 1117 root 13u IPv4 17249 0t0 TCP *:25 (LISTEN)
master 1117 root 14u IPv6 17250 0t0 TCP *:25 (LISTEN)
master 1117 root 18u IPv4 17255 0t0 TCP *:587 (LISTEN)
master 1117 root 19u IPv6 17256 0t0 TCP *:587 (LISTEN)
master 1117 root 22u IPv4 17261 0t0 TCP *:465 (LISTEN)
master 1117 root 23u IPv6 17262 0t0 TCP *:465 (LISTEN)
Plex\x20D 1197 plex 13u IPv4 20357 0t0 TCP *:1970 (LISTEN)
Plex\x20D 1197 plex 19u IPv4 20364 0t0 TCP *:32469 (LISTEN)
Plex\x20T 1199 plex 10u IPv4 20595 0t0 TCP 127.0.0.1:32600 (LISTEN)
Plex\x20S 1242 plex 4u IPv4 22069 0t0 TCP 127.0.0.1:36323 (LISTEN)
apache2 1245 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 1245 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 1245 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
apache2 1289 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 1289 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 1289 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
apache2 1290 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 1290 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 1290 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
apache2 1314 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 1314 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 1314 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
apache2 1316 www-data 3u IPv4 19628 0t0 TCP *:80 (LISTEN)
apache2 1316 www-data 4u IPv4 19630 0t0 TCP *:81 (LISTEN)
apache2 1316 www-data 5u IPv4 19632 0t0 TCP *:443 (LISTEN)
Debug Log ; https://tricorder.pi-hole.net/fWlgQBT6/
I hope someone can help...