Hello,
Any help would be appreciated. I have looked at any solution for problems that look similar, but can't seem to find a solution/
Expected Behaviour:
Pi-hole running on a raspberry pi 32 bit should be able to function as DHCP & DNS server for home network. Was working for many months and then the DNS capability failed. Currently running:
RETTY_NAME="Raspbian GNU/Linux 11 (bullseye)"
NAME="Raspbian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="RaspbianForums - Raspbian"
BUG_REPORT_URL="RaspbianBugs - Raspbian"
Actual Behaviour:
After the Pi-Hole initially failed (Overnight there was a large spike in DNS queries from ~1000 to ~10,000, then network connection was lost) I tried to set it back up as normal. But when I try to set the pi as the DNS server on the router the pi immediately losses DNS capabilities and cannot access the internet. Trying to ping anything returns a "Temporary failure in name resolution". All other devices lose the ability to view webpages as well. Everything is fine if I switch back to the default DNS servers for all other devices, but I have to change the IP address of the pi to gain DNS function again. Or at least I think it's a DNS issue, as there's no issue with the internet until I try to set up the pi as a DNS server. I am currently using the wlan0 connection
ip addr show:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether d8:3a:dd:4d:0d:4f brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether d8:3a:dd:4d:0d:50 brd ff:ff:ff:ff:ff:ff
inet 192.168.2.30/24 brd 192.168.2.255 scope global dynamic noprefixroute wlan0
valid_lft 257148sec preferred_lft 257148sec
inet6 fe80::aa6c:ed1c:2676:319a/64 scope link noprefixroute
valid_lft forever preferred_lft forever
ip route:
default via 192.168.2.1 dev wlan0 proto dhcp metric 600
192.168.2.0/24 dev wlan0 proto kernel scope link src 192.168.2.30 metric 600
route -n:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.2.1 0.0.0.0 UG 600 0 0 wlan0
192.168.2.0 0.0.0.0 255.255.255.0 U 600 0 0 wlan0
/etc/dhcpcd.conf:
interface wlan0
inform 192.168.2.30/24
static routers=192.168.2.1
static domain_name_servers=8.8.8.8
noipv6
interface wlan0
static ip_address=192.168.2.30/24
static routers=192.168.2.1
static domain_name_servers=8.8.8.8 8.8.4.4
interface eth0
static ip_address=192.168.2.31/24
static routers=192.168.2.1
static domain_name_servers=