PiHole funktioniert nach Neuinstallation nicht mehr

Hallo,
ich verwende schon länger PiHole auf einem ReaspberryPi 4. PiHole hat auch super funktioniert. Ich konnte nur irgendwann keine Updates mehr durchführen, weil die Servernamen nicht aufgelöst werden konnten. Da ich den Pi auch noch anderweitig nutzen wollte, habe ich mich entschieden ihn platt zu machen und ihn mit Docker neu aufzusetzen. War auch recht schnell installiert, aber die Namensauflösung hat nicht funktioneirt. Nach einigem rumprobieren, habe ich wieder alles platt gemacht und PiHole "ganz normal" installiert. Nun bekomme ich es einfach nicht mehr zum Laufen.

In der Admin-Oberfläche sehe ich, dass die Anfragen bei PiHole ankommen, aber sie gehen anscheinend nicht zurück zum Client. Habe zum Ausprobieren nur bei meinem PC den Pi als DNS-Server eingetragen. Ich kann keine Internetseiten o.ä. mehr öffnen.

Hat jemand eine Idee, woran das liegen könnte? Werden noch mehr Informationen benötigt?

This process collects information from your Pi-hole, and optionally uploads it to a unique and random directory on tricorder.pi-hole.net.

The intent of this script is to allow users to self-diagnose their installations.  This is accomplished by running tests against our software and providing the user with links to FAQ articles when a problem is detected.  Since we are a small team and Pi-hole has been growing steadily, it is our hope that this will help us spend more time on development.

NOTE: All log files auto-delete after 48 hours and ONLY the Pi-hole developers can access your data via the given token. We have taken these extra steps to secure your data and will work to further reduce any personal information gathered.

*** [ INITIALIZING ]
[i] 2020-11-19:12:42:38 debug log has been initialized.

*** [ INITIALIZING ] Sourcing setup variables
[i] Sourcing /etc/pihole/setupVars.conf...

*** [ DIAGNOSING ]: Core version
[i] Core: v5.1.2 (https://discourse.pi-hole.net/t/how-do-i-update-pi-hole/249)
[i] Remotes: origin	https://github.com/pi-hole/pi-hole.git (fetch)
             origin	https://github.com/pi-hole/pi-hole.git (push)
[i] Branch: master
[i] Commit: v5.1.2-0-g6b536b7

*** [ DIAGNOSING ]: Web version
[i] Web: v5.1.1 (https://discourse.pi-hole.net/t/how-do-i-update-pi-hole/249)
[i] Remotes: origin	https://github.com/pi-hole/AdminLTE.git (fetch)
             origin	https://github.com/pi-hole/AdminLTE.git (push)
[i] Branch: master
[i] Commit: v5.1.1-0-ga03d1bd

*** [ DIAGNOSING ]: FTL version
[✓] FTL: v5.2 (https://discourse.pi-hole.net/t/how-do-i-update-pi-hole/249)

*** [ DIAGNOSING ]: lighttpd version
[i] 1.4.53

*** [ DIAGNOSING ]: php version
[i] 7.3.19

*** [ DIAGNOSING ]: Operating system
[✗] Distro:  Raspbian
[✗] Error: Raspbian is not a supported distro (https://docs.pi-hole.net/main/prerequisites/)

*** [ DIAGNOSING ]: SELinux
[i] SELinux not detected

*** [ DIAGNOSING ]: Processor
[✓] armv7l

*** [ DIAGNOSING ]: Networking
[✓] IPv4 address(es) bound to the eth0 interface:
   192.168.178.210/24 matches the IP found in /etc/pihole/setupVars.conf

[✓] IPv6 address(es) bound to the eth0 interface:
   2003:c0:8726:8200:6f8f:f623:a2fc:a04a does not match the IP found in /etc/pihole/setupVars.conf (https://discourse.pi-hole.net/t/use-ipv6-ula-addresses-for-pi-hole/2127)
   fe80::e529:b92a:a395:a702 does not match the IP found in /etc/pihole/setupVars.conf (https://discourse.pi-hole.net/t/use-ipv6-ula-addresses-for-pi-hole/2127)

   ^ Please note that you may have more than one IP address listed.
   As long as one of them is green, and it matches what is in /etc/pihole/setupVars.conf, there is no need for concern.

   The link to the FAQ is for an issue that sometimes occurs when the IPv6 address changes, which is why we check for it.

[i] Default IPv4 gateway: 192.168.178.1
   * Pinging 192.168.178.1...
[✓] Gateway responded.
[i] Default IPv6 gateway: fe80::e228:6dff:fed1:ab03
   * Pinging fe80::e228:6dff:fed1:ab03...
[✓] Gateway responded.

*** [ DIAGNOSING ]: Ports in use
*:22 sshd (IPv4)
*:22 sshd (IPv6)
[80] is in use by lighttpd
[80] is in use by lighttpd
[53] is in use by pihole-FTL
[53] is in use by pihole-FTL
[4711] is in use by pihole-FTL
[4711] is in use by pihole-FTL

*** [ DIAGNOSING ]: Name resolution (IPv4) using a random blocked domain and a known ad-serving domain
[✓] indus.iad-01.braze.com is 0.0.0.0 via localhost (127.0.0.1)
[✓] indus.iad-01.braze.com is 0.0.0.0 via Pi-hole (192.168.178.210)
[✗] Failed to resolve doubleclick.com via a remote, public DNS server (8.8.8.8)

*** [ DIAGNOSING ]: Pi-hole processes
[✓] lighttpd daemon is active
[✓] pihole-FTL daemon is active

*** [ DIAGNOSING ]: Setup variables
    BLOCKING_ENABLED=true
    DNSMASQ_LISTENING=single
    DNS_FQDN_REQUIRED=false
    DNS_BOGUS_PRIV=false
    DNSSEC=false
    REV_SERVER=true
    REV_SERVER_CIDR=192.168.178.0/24
    REV_SERVER_TARGET=192.168.178.1
    REV_SERVER_DOMAIN=
    PIHOLE_INTERFACE=eth0
    IPV4_ADDRESS=192.168.178.210/24
    IPV6_ADDRESS=
    PIHOLE_DNS_1=1.1.1.1
    PIHOLE_DNS_2=1.0.0.1
    QUERY_LOGGING=true
    INSTALL_WEB_SERVER=true
    INSTALL_WEB_INTERFACE=true
    LIGHTTPD_ENABLED=true

*** [ DIAGNOSING ]: Dashboard and block page
[✓] Block page X-Header: X-Pi-hole: A black hole for Internet advertisements.
[✓] Web interface X-Header: X-Pi-hole: The Pi-hole Web interface is working!

*** [ DIAGNOSING ]: Gravity List and Database
-rw-rw-r-- 1 pihole pihole 20836352 Nov 19 10:30 /etc/pihole/gravity.db

*** [ DIAGNOSING ]: Info table
   property              value                                   
   --------------------  ----------------------------------------
   version               12                                      
   updated               1605781730                              
   gravity_count         272985                                  
   Last gravity run finished at: Thu Nov 19 10:28:50 GMT 2020

   ----- First 10 Gravity Domains -----
   localhost.localdomain
   n2019cov.000webhostapp.com
   webmail-who-int.000webhostapp.com
   010sec.com
   01mspmd5yalky8.com
   0byv9mgbn0.com
   ns6.0pendns.org
   dns.0pengl.com
   ios.0pengl.com
   0x4fc271.tk


*** [ DIAGNOSING ]: Groups
   id    enabled  name                                                date_added           date_modified        description                                       
   ----  -------  --------------------------------------------------  -------------------  -------------------  --------------------------------------------------
   0           1  Default                                             2020-11-19 10:30:39  2020-11-19 10:30:39                                                    

*** [ DIAGNOSING ]: Domainlist (0/1 = exact white-/blacklist, 2/3 = regex white-/blacklist)
   id    type  enabled  group_ids     domain                                                                                                date_added           date_modified        comment                                           
   ----  ----  -------  ------------  ----------------------------------------------------------------------------------------------------  -------------------  -------------------  --------------------------------------------------
   2      1          1  0             wpad.fritz.box                                                                                        2020-08-17 16:09:02  2020-11-19 10:07:57                                                    
   3     0           1  0             nvidia.com                                                                                            2020-08-17 16:09:23  2020-11-19 10:07:57                                                    
   4     0           1  0             bitbucket.org                                                                                         2020-08-17 16:09:29  2020-11-19 10:07:57                                                    
   5     0           1  0             geforce.com                                                                                           2020-08-19 13:22:25  2020-11-19 10:07:57                                                    
   6     0           1  0             idmsa.apple.com                                                                                       2020-08-30 13:46:01  2020-11-19 10:07:57                                                    
   7     0           1  0             der-postillon.com                                                                                     2020-10-27 19:57:14  2020-11-19 10:07:57                                                    

*** [ DIAGNOSING ]: Clients

*** [ DIAGNOSING ]: Adlists
   id    enabled  group_ids     address                                                                                               date_added           date_modified        comment                                           
   ----  -------  ------------  ----------------------------------------------------------------------------------------------------  -------------------  -------------------  --------------------------------------------------
   2           1  0             https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts                                      2020-08-17 16:04:38  2020-11-19 10:30:38                                                    
   3           1  0             https://mirror1.malwaredomains.com/files/justdomains                                                  2020-08-17 16:04:38  2020-11-19 10:30:38                                                    
   4           1  0             https://s3.amazonaws.com/lists.disconnect.me/simple_tracking.txt                                      2020-08-17 16:04:38  2020-11-19 10:30:38                                                    
   5           1  0             https://s3.amazonaws.com/lists.disconnect.me/simple_ad.txt                                            2020-08-17 16:04:38  2020-11-19 10:30:38                                                    
   6           1  0             https://raw.githubusercontent.com/PolishFiltersTeam/KADhosts/master/KADhosts_without_controversies.t  2020-08-17 16:08:02  2020-11-19 10:30:38                                                    
   7           1  0             https://raw.githubusercontent.com/FadeMind/hosts.extras/master/add.Spam/hosts                         2020-08-17 16:08:02  2020-11-19 10:30:38                                                    
   8           1  0             https://v.firebog.net/hosts/static/w3kbl.txt                                                          2020-08-17 16:08:02  2020-11-19 10:30:38                                                    
   9           1  0             https://adaway.org/hosts.txt                                                                          2020-08-17 16:08:02  2020-11-19 10:30:38                                                    
   10          1  0             https://v.firebog.net/hosts/AdguardDNS.txt                                                            2020-08-17 16:08:02  2020-11-19 10:30:38                                                    
   11          1  0             https://v.firebog.net/hosts/Admiral.txt                                                               2020-08-17 16:08:02  2020-11-19 10:30:38                                                    
   12          1  0             https://raw.githubusercontent.com/anudeepND/blacklist/master/adservers.txt                            2020-08-17 16:08:02  2020-11-19 10:30:38                                                    
   14          1  0             https://v.firebog.net/hosts/Easylist.txt                                                              2020-08-17 16:08:02  2020-11-19 10:30:38                                                    
   15          1  0             https://pgl.yoyo.org/adservers/serverlist.php?hostformat=hosts&showintro=0&mimetype=plaintex  2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   16          1  0             https://raw.githubusercontent.com/FadeMind/hosts.extras/master/UncheckyAds/hosts                      2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   17          1  0             https://raw.githubusercontent.com/bigdargon/hostsVN/master/hosts                                      2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   18          1  0             https://v.firebog.net/hosts/Easyprivacy.txt                                                           2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   19          1  0             https://v.firebog.net/hosts/Prigent-Ads.txt                                                           2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   20          1  0             https://gitlab.com/quidsup/notrack-blocklists/raw/master/notrack-blocklist.txt                        2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   21          1  0             https://raw.githubusercontent.com/FadeMind/hosts.extras/master/add.2o7Net/hosts                       2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   22          1  0             https://raw.githubusercontent.com/crazy-max/WindowsSpyBlocker/master/data/hosts/spy.txt               2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   23          1  0             https://hostfiles.frogeye.fr/firstparty-trackers-hosts.txt                                            2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   24          1  0             https://raw.githubusercontent.com/DandelionSprout/adfilt/master/Alternate%20versions%20Anti-Malware%  2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   25          1  0             https://osint.digitalside.it/Threat-Intel/lists/latestdomains.txt                                     2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   26          1  0             https://s3.amazonaws.com/lists.disconnect.me/simple_malvertising.txt                                  2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   28          1  0             https://v.firebog.net/hosts/Prigent-Crypto.txt                                                        2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   29          1  0             https://mirror.cedia.org.ec/malwaredomains/immortal_domains.txt                                       2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   30          1  0             https://www.malwaredomainlist.com/hostslist/hosts.txt                                                 2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   31          1  0             https://bitbucket.org/ethanr/dns-blacklists/raw/8575c9f96e5b4a1308f2f12394abd86d0927a4a0/bad_lists/M  2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   32          1  0             https://phishing.army/download/phishing_army_blocklist_extended.txt                                   2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   33          1  0             https://gitlab.com/quidsup/notrack-blocklists/raw/master/notrack-malware.txt                          2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   34          1  0             https://v.firebog.net/hosts/Shalla-mal.txt                                                            2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   35          1  0             https://raw.githubusercontent.com/Spam404/lists/master/main-blacklist.txt                             2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   36          1  0             https://raw.githubusercontent.com/FadeMind/hosts.extras/master/add.Risk/hosts                         2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   37          1  0             https://urlhaus.abuse.ch/downloads/hostfile/                                                          2020-08-17 16:08:02  2020-11-19 10:30:39                                                    
   38          1  0             https://zerodot1.gitlab.io/CoinBlockerLists/hosts_browser                                             2020-08-17 16:08:02  2020-11-19 10:30:39                                                    

*** [ DIAGNOSING ]: contents of /etc/pihole

-rw-r--r-- 1 root root 47 Nov 19 10:28 /etc/pihole/local.list
   192.168.178.210 pihole
   192.168.178.210 pi.hole

-rw-r--r-- 1 root root 234 Nov 19 10:28 /etc/pihole/logrotate
   /var/log/pihole.log {
   	su root root
   	daily
   	copytruncate
   	rotate 5
   	compress
   	delaycompress
   	notifempty
   	nomail
   }
   /var/log/pihole-FTL.log {
   	su root root
   	weekly
   	copytruncate
   	rotate 3
   	compress
   	delaycompress
   	notifempty
   	nomail
   }

-rw-rw-r-- 1 pihole root 15 Nov 19 10:28 /etc/pihole/pihole-FTL.conf
   PRIVACYLEVEL=0

*** [ DIAGNOSING ]: contents of /etc/dnsmasq.d

-rw-r--r-- 1 root root 1427 Nov 19 10:28 /etc/dnsmasq.d/01-pihole.conf
   addn-hosts=/etc/pihole/local.list
   addn-hosts=/etc/pihole/custom.list
   localise-queries
   no-resolv
   cache-size=10000
   log-queries
   log-facility=/var/log/pihole.log
   local-ttl=2
   log-async
   server=1.1.1.1
   server=1.0.0.1
   interface=eth0
   rev-server=192.168.178.0/24,192.168.178.1
   server=/use-application-dns.net/

*** [ DIAGNOSING ]: contents of /etc/lighttpd

-rw-r--r-- 1 root root 0 Nov 19 10:28 /etc/lighttpd/external.conf

-rw-r--r-- 1 root root 4066 Nov 19 10:28 /etc/lighttpd/lighttpd.conf
   server.modules = (
       "mod_access",
       "mod_accesslog",
       "mod_auth",
       "mod_expire",
       "mod_compress",
       "mod_redirect",
       "mod_setenv",
       "mod_rewrite"
   )
   server.document-root        = "/var/www/html"
   server.error-handler-404    = "/pihole/index.php"
   server.upload-dirs          = ( "/var/cache/lighttpd/uploads" )
   server.errorlog             = "/var/log/lighttpd/error.log"
   server.pid-file             = "/run/lighttpd.pid"
   server.username             = "www-data"
   server.groupname            = "www-data"
   server.port                 = 80
   accesslog.filename          = "/var/log/lighttpd/access.log"
   accesslog.format            = "%{%s}t|%V|%r|%s|%b"
   index-file.names            = ( "index.php", "index.html", "index.lighttpd.html" )
   url.access-deny             = ( "~", ".inc", ".md", ".yml", ".ini" )
   static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" )
   compress.cache-dir = "/var/cache/lighttpd/compress/"
   compress.filetype  = (
       "application/json",
       "application/vnd.ms-fontobject",
       "application/xml",
       "font/eot",
       "font/opentype",
       "font/otf",
       "font/ttf",
       "image/bmp",
       "image/svg+xml",
       "image/vnd.microsoft.icon",
       "image/x-icon",
       "text/css",
       "text/html",
       "text/javascript",
       "text/plain",
       "text/xml"
   )
   mimetype.assign = (
       ".ico"   => "image/x-icon",
       ".jpeg"  => "image/jpeg",
       ".jpg"   => "image/jpeg",
       ".png"   => "image/png",
       ".svg"   => "image/svg+xml",
       ".css"   => "text/css; charset=utf-8",
       ".html"  => "text/html; charset=utf-8",
       ".js"    => "text/javascript; charset=utf-8",
       ".json"  => "application/json; charset=utf-8",
       ".map"   => "application/json; charset=utf-8",
       ".txt"   => "text/plain; charset=utf-8",
       ".eot"   => "application/vnd.ms-fontobject",
       ".otf"   => "font/otf",
       ".ttc"   => "font/collection",
       ".ttf"   => "font/ttf",
       ".woff"  => "font/woff",
       ".woff2" => "font/woff2"
   )
   include_shell "/usr/share/lighttpd/use-ipv6.pl " + server.port
   include_shell "find /etc/lighttpd/conf-enabled -name '*.conf' -a ! -name 'letsencrypt.conf' -printf 'include \"%p\"
' 2>/dev/null"
   $HTTP["url"] =~ "^/admin/" {
       
       setenv.add-response-header = (
           "X-Pi-hole" => "The Pi-hole Web interface is working!",
           "X-Frame-Options" => "DENY"
       )
       $HTTP["url"] =~ "\.(eot|otf|tt[cf]|woff2?)$" {
           
           setenv.add-response-header = ( "Access-Control-Allow-Origin" => "*" )
       }
   }
   $HTTP["url"] =~ "^/admin/\.(.*)" {
       url.access-deny = ("")
   }
   expire.url = ( "" => "access plus 0 seconds" )
   include_shell "cat external.conf 2>/dev/null"

*** [ DIAGNOSING ]: contents of /etc/cron.d

-rw-r--r-- 1 root root 1755 Nov 19 10:28 /etc/cron.d/pihole
   27 4   * * 7   root    PATH="$PATH:/usr/sbin:/usr/local/bin/" pihole updateGravity >/var/log/pihole_updateGravity.log || cat /var/log/pihole_updateGravity.log
   00 00   * * *   root    PATH="$PATH:/usr/sbin:/usr/local/bin/" pihole flush once quiet
   @reboot root /usr/sbin/logrotate /etc/pihole/logrotate
   */10 *  * * *   root    PATH="$PATH:/usr/sbin:/usr/local/bin/" pihole updatechecker local
   26 19  * * *   root    PATH="$PATH:/usr/sbin:/usr/local/bin/" pihole updatechecker remote
   @reboot root    PATH="$PATH:/usr/sbin:/usr/local/bin/" pihole updatechecker remote reboot

*** [ DIAGNOSING ]: contents of /var/log/lighttpd

-rw-r--r-- 1 www-data www-data 3523 Nov 19 12:43 /var/log/lighttpd/error.log
   2020-11-19 10:05:42: (server.c.1464) server started (lighttpd/1.4.53) 
   2020-11-19 10:06:11: (server.c.2059) server stopped by UID = 0 PID = 1 
   2020-11-19 10:06:12: (server.c.1464) server started (lighttpd/1.4.53) 
   2020-11-19 10:07:57: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  SQLite3::exec(): no such table: blacklist in /var/www/html/admin/scripts/pi-hole/php/teleporter.php on line 90
   2020-11-19 10:07:57: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  SQLite3::exec(): no such table: regex_blacklist in /var/www/html/admin/scripts/pi-hole/php/teleporter.php on line 90
   2020-11-19 10:07:57: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  SQLite3::exec(): no such table: whitelist in /var/www/html/admin/scripts/pi-hole/php/teleporter.php on line 90
   2020-11-19 10:07:57: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  SQLite3::exec(): no such table: regex_whitelist in /var/www/html/admin/scripts/pi-hole/php/teleporter.php on line 90
   2020-11-19 10:14:28: (server.c.2059) server stopped by UID = 0 PID = 1 
   2020-11-19 10:14:29: (server.c.1464) server started (lighttpd/1.4.53) 
   2020-11-19 10:28:16: (server.c.2059) server stopped by UID = 0 PID = 1 
   2020-11-19 10:28:17: (server.c.1464) server started (lighttpd/1.4.53) 
   2020-11-19 10:30:39: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  SQLite3::exec(): no such table: blacklist in /var/www/html/admin/scripts/pi-hole/php/teleporter.php on line 90
   2020-11-19 10:30:39: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  SQLite3::exec(): no such table: regex_blacklist in /var/www/html/admin/scripts/pi-hole/php/teleporter.php on line 90
   2020-11-19 10:30:39: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  SQLite3::exec(): no such table: whitelist in /var/www/html/admin/scripts/pi-hole/php/teleporter.php on line 90
   2020-11-19 10:30:39: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  SQLite3::exec(): no such table: regex_whitelist in /var/www/html/admin/scripts/pi-hole/php/teleporter.php on line 90
   2020-11-19 12:07:28: (server.c.2059) server stopped by UID = 0 PID = 1 
   2020-11-19 12:07:43: (server.c.1464) server started (lighttpd/1.4.53) 
   2020-11-19 12:20:09: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  dns_get_record(): A temporary server error occurred. in /var/www/html/pihole/index.php on line 227
   2020-11-19 12:20:09: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  array_key_exists() expects parameter 2 to be array, null given in /var/www/html/pihole/index.php on line 228
   2020-11-19 12:20:09: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  dns_get_record(): A temporary server error occurred. in /var/www/html/pihole/index.php on line 227
   2020-11-19 12:20:09: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  array_key_exists() expects parameter 2 to be array, null given in /var/www/html/pihole/index.php on line 228
   2020-11-19 12:43:00: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  dns_get_record(): A temporary server error occurred. in /var/www/html/pihole/index.php on line 227
   2020-11-19 12:43:00: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  array_key_exists() expects parameter 2 to be array, null given in /var/www/html/pihole/index.php on line 228
   2020-11-19 12:43:01: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  dns_get_record(): A temporary server error occurred. in /var/www/html/pihole/index.php on line 227
   2020-11-19 12:43:01: (mod_fastcgi.c.421) FastCGI-stderr: PHP Warning:  array_key_exists() expects parameter 2 to be array, null given in /var/www/html/pihole/index.php on line 228

*** [ DIAGNOSING ]: contents of /var/log

-rw-r--r-- 1 pihole pihole 30235 Nov 19 12:16 /var/log/pihole-FTL.log
   -----head of pihole-FTL.log------
   [2020-11-19 10:06:15.382 11937M] Using log file /var/log/pihole-FTL.log
   [2020-11-19 10:06:15.382 11937M] ########## FTL started! ##########
   [2020-11-19 10:06:15.382 11937M] FTL branch: master
   [2020-11-19 10:06:15.382 11937M] FTL version: v5.2
   [2020-11-19 10:06:15.382 11937M] FTL commit: dbd4a69
   [2020-11-19 10:06:15.382 11937M] FTL date: 2020-08-09 22:09:43 +0100
   [2020-11-19 10:06:15.382 11937M] FTL user: pihole
   [2020-11-19 10:06:15.382 11937M] Compiled for armhf (compiled on CI) using arm-linux-gnueabihf-gcc (Debian 6.3.0-18) 6.3.0 20170516
   [2020-11-19 10:06:15.382 11937M] Starting config file parsing (/etc/pihole/pihole-FTL.conf)
   [2020-11-19 10:06:15.382 11937M]    SOCKET_LISTENING: only local
   [2020-11-19 10:06:15.382 11937M]    AAAA_QUERY_ANALYSIS: Show AAAA queries
   [2020-11-19 10:06:15.382 11937M]    MAXDBDAYS: max age for stored queries is 365 days
   [2020-11-19 10:06:15.382 11937M]    RESOLVE_IPV6: Resolve IPv6 addresses
   [2020-11-19 10:06:15.382 11937M]    RESOLVE_IPV4: Resolve IPv4 addresses
   [2020-11-19 10:06:15.382 11937M]    DBINTERVAL: saving to DB file every minute
   [2020-11-19 10:06:15.382 11937M]    DBFILE: Using /etc/pihole/pihole-FTL.db
   [2020-11-19 10:06:15.382 11937M]    MAXLOGAGE: Importing up to 24.0 hours of log data
   [2020-11-19 10:06:15.382 11937M]    PRIVACYLEVEL: Set to 0
   [2020-11-19 10:06:15.382 11937M]    IGNORE_LOCALHOST: Show queries from localhost
   [2020-11-19 10:06:15.383 11937M]    BLOCKINGMODE: Null IPs for blocked domains
   [2020-11-19 10:06:15.383 11937M]    ANALYZE_ONLY_A_AND_AAAA: Disabled. Analyzing all queries
   [2020-11-19 10:06:15.383 11937M]    DBIMPORT: Importing history from database
   [2020-11-19 10:06:15.383 11937M]    PIDFILE: Using /run/pihole-FTL.pid
   [2020-11-19 10:06:15.383 11937M]    PORTFILE: Using /run/pihole-FTL.port
   [2020-11-19 10:06:15.383 11937M]    SOCKETFILE: Using /run/pihole/FTL.sock
   [2020-11-19 10:06:15.383 11937M]    SETUPVARSFILE: Using /etc/pihole/setupVars.conf
   [2020-11-19 10:06:15.383 11937M]    MACVENDORDB: Using /etc/pihole/macvendor.db
   [2020-11-19 10:06:15.383 11937M]    GRAVITYDB: Using /etc/pihole/gravity.db
   [2020-11-19 10:06:15.383 11937M]    PARSE_ARP_CACHE: Active
   [2020-11-19 10:06:15.383 11937M]    CNAME_DEEP_INSPECT: Active
   [2020-11-19 10:06:15.383 11937M]    DELAY_STARTUP: No delay requested.
   [2020-11-19 10:06:15.383 11937M]    NICE: Set process niceness to -10 (default)
   [2020-11-19 10:06:15.383 11937M]    BLOCK_ESNI: Enabled, blocking _esni.{blocked domain}
   [2020-11-19 10:06:15.383 11937M]    NAMES_FROM_NETDB: Enabled, trying to get names from network database
   [2020-11-19 10:06:15.383 11937M] Finished config file parsing

   -----tail of pihole-FTL.log------
   [2020-11-19 12:07:43.524 610M]    SETUPVARSFILE: Using /etc/pihole/setupVars.conf
   [2020-11-19 12:07:43.524 610M]    MACVENDORDB: Using /etc/pihole/macvendor.db
   [2020-11-19 12:07:43.524 610M]    GRAVITYDB: Using /etc/pihole/gravity.db
   [2020-11-19 12:07:43.524 610M]    PARSE_ARP_CACHE: Active
   [2020-11-19 12:07:43.525 610M]    CNAME_DEEP_INSPECT: Active
   [2020-11-19 12:07:43.525 610M]    DELAY_STARTUP: No delay requested.
   [2020-11-19 12:07:43.525 610M]    NICE: Set process niceness to -10 (default)
   [2020-11-19 12:07:43.525 610M]    BLOCK_ESNI: Enabled, blocking _esni.{blocked domain}
   [2020-11-19 12:07:43.525 610M]    NAMES_FROM_NETDB: Enabled, trying to get names from network database
   [2020-11-19 12:07:43.525 610M] Finished config file parsing
   [2020-11-19 12:07:43.531 610M] Database version is 7
   [2020-11-19 12:07:43.532 610M] Database successfully initialized
   [2020-11-19 12:07:43.536 610M] New upstream server: 1.0.0.1 (0/1024)
   [2020-11-19 12:07:43.543 610M] New upstream server: 192.168.178.1 (1/1024)
   [2020-11-19 12:07:43.551 610M] Imported 4001 queries from the long-term database
   [2020-11-19 12:07:43.551 610M]  -> Total DNS queries: 4001
   [2020-11-19 12:07:43.551 610M]  -> Cached DNS queries: 7
   [2020-11-19 12:07:43.551 610M]  -> Forwarded DNS queries: 3878
   [2020-11-19 12:07:43.551 610M]  -> Blocked DNS queries: 100
   [2020-11-19 12:07:43.551 610M]  -> Unknown DNS queries: 16
   [2020-11-19 12:07:43.551 610M]  -> Unique domains: 86
   [2020-11-19 12:07:43.551 610M]  -> Unique clients: 7
   [2020-11-19 12:07:43.551 610M]  -> Known forward destinations: 2
   [2020-11-19 12:07:43.551 610M] Successfully accessed setupVars.conf
   [2020-11-19 12:07:43.566 612M] PID of FTL process: 612
   [2020-11-19 12:07:43.567 612/T613] Listening on port 4711 for incoming IPv4 telnet connections
   [2020-11-19 12:07:43.567 612/T615] Listening on Unix socket
   [2020-11-19 12:07:43.568 612/T614] Listening on port 4711 for incoming IPv6 telnet connections
   [2020-11-19 12:07:43.574 612M] Reloading DNS cache
   [2020-11-19 12:07:43.574 612M] Blocking status is enabled
   [2020-11-19 12:07:43.604 612M] INFO: No regex blacklist entries found
   [2020-11-19 12:07:43.605 612M] INFO: No regex whitelist entries found
   [2020-11-19 12:07:43.610 612M] Compiled 0 whitelist and 0 blacklist regex filters for 7 clients in 7.3 msec
   [2020-11-19 12:08:06.394 612M] New upstream server: 1.1.1.1 (2/1024)
   [2020-11-19 12:16:13.642 612M] Resizing "/FTL-queries" from 229376 to 458752

*** [ DIAGNOSING ]: contents of /dev/shm
-rw------- 1 pihole pihole 323584 Nov 19 12:07 /dev/shm/FTL-clients
-rw------- 1 pihole pihole 144 Nov 19 12:07 /dev/shm/FTL-counters
-rw------- 1 pihole pihole 4096 Nov 19 12:07 /dev/shm/FTL-dns-cache
-rw------- 1 pihole pihole 65536 Nov 19 12:07 /dev/shm/FTL-domains
-rw------- 1 pihole pihole 28 Nov 19 12:07 /dev/shm/FTL-lock
-rw------- 1 pihole pihole 77824 Nov 19 12:07 /dev/shm/FTL-overTime
-rw------- 1 pihole pihole 4096 Nov 19 12:07 /dev/shm/FTL-per-client-regex
-rw------- 1 pihole pihole 458752 Nov 19 12:38 /dev/shm/FTL-queries
-rw------- 1 pihole pihole 12 Nov 19 12:07 /dev/shm/FTL-settings
-rw------- 1 pihole pihole 4096 Nov 19 12:07 /dev/shm/FTL-strings
-rw------- 1 pihole pihole 20480 Nov 19 12:07 /dev/shm/FTL-upstreams

*** [ DIAGNOSING ]: Locale
    LANG=

*** [ DIAGNOSING ]: Pi-hole log
-rw-r--r-- 1 pihole pihole 1068922 Nov 19 12:43 /var/log/pihole.log
   -----head of pihole.log------
   Nov 19 10:06:15 dnsmasq[11939]: started, version pi-hole-2.81 cachesize 10000
   Nov 19 10:06:15 dnsmasq[11939]: compile time options: IPv6 GNU-getopt no-DBus no-UBus no-i18n IDN DHCP DHCPv6 no-Lua TFTP no-conntrack ipset auth DNSSEC loop-detect inotify dumpfile
   Nov 19 10:06:15 dnsmasq[11939]: using only locally-known addresses for domain use-application-dns.net
   Nov 19 10:06:15 dnsmasq[11939]: using nameserver 1.0.0.1#53
   Nov 19 10:06:15 dnsmasq[11939]: using nameserver 1.1.1.1#53
   Nov 19 10:06:15 dnsmasq[11939]: read /etc/hosts - 5 addresses
   Nov 19 10:06:15 dnsmasq[11939]: failed to load names from /etc/pihole/custom.list: No such file or directory
   Nov 19 10:06:15 dnsmasq[11939]: failed to load names from /etc/pihole/local.list: No such file or directory
   Nov 19 10:06:20 dnsmasq[11939]: read /etc/hosts - 5 addresses
   Nov 19 10:06:20 dnsmasq[11939]: failed to load names from /etc/pihole/custom.list: No such file or directory
   Nov 19 10:06:20 dnsmasq[11939]: read /etc/pihole/local.list - 4 addresses
   Nov 19 10:06:20 dnsmasq[11939]: read /etc/hosts - 5 addresses
   Nov 19 10:06:20 dnsmasq[11939]: failed to load names from /etc/pihole/custom.list: No such file or directory
   Nov 19 10:06:20 dnsmasq[11939]: read /etc/pihole/local.list - 4 addresses
   Nov 19 10:07:01 dnsmasq[11939]: query[A] xbroker-z1-i5.arloxcld.com from 192.168.178.48
   Nov 19 10:07:01 dnsmasq[11939]: forwarded xbroker-z1-i5.arloxcld.com to 1.0.0.1
   Nov 19 10:07:01 dnsmasq[11939]: forwarded xbroker-z1-i5.arloxcld.com to 1.1.1.1
   Nov 19 10:07:01 dnsmasq[11939]: query[AAAA] xbroker-z1-i5.arloxcld.com from 192.168.178.48
   Nov 19 10:07:01 dnsmasq[11939]: forwarded xbroker-z1-i5.arloxcld.com to 1.0.0.1
   Nov 19 10:07:01 dnsmasq[11939]: forwarded xbroker-z1-i5.arloxcld.com to 1.1.1.1


********************************************
********************************************
[✓] ** FINISHED DEBUGGING! **

    * The debug log can be uploaded to tricorder.pi-hole.net for sharing with developers only.
    * For more information, see: https://pi-hole.net/2016/11/07/crack-our-medical-tricorder-win-a-raspberry-pi-3/
    * If available, we'll use openssl to upload the log, otherwise it will fall back to netcat.
[i] Debug script running in automated mode
    * Using curl for transmission.
    * curl failed, falling back to netcat for transmission.
[✗]  There was an error uploading your debug log.
   * Please try again or contact the Pi-hole team for assistance.
   * A local copy of the debug log can be found at: /var/log/pihole_debug.log

Blockierst du Port 53? Dein Pihole kann den DNS server von Google nicht erreichen - wahrscheinlich gilt das auch für

Habe mich schon gewundert warum das fehlgeschlagen ist. Anpingen funktioniert aber.

Ich konnte mich ganz schwach dran erinnern, dass ich mal Einstellungen in der Fritzbox geändert habe, als ich das erste Mal den PiHole installiert habe. Ich glaube in Verbindung mit Unbound.
In der Fritzbox habe ich dann tatsächlich eine Filterliste gefunden, die den Port 53 geblockt hat.

Danke für den Denkanstoß.

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