# Managing pi-hole DNS Server # DNSMASQ_WARN reducing DNS packet size ##### **Objective**: Get rid of the warnings in the Admin Web Interface "reducing DNS packet size for nameserver OpenDNS Resolver to 1280" **STEP 1**: ##### You can get rid of the warning by adding a config file like **`/etc/dnsmasq.d/99-edns.conf`** and using an editor like nano or vi, add the following line below: ```shell edns-packet-max=1280 ``` ##### **STEP 2**: ##### Then run `pihole restartdns` and your Pi-hole will not even try with larger packet sizes (our default is 4096). ```shell pihole restartdns ``` ##### More Information on the DNS Server accepted Maximum Packet sizes below:

Because this doesn't seem to be documented anywhere properly, I probed all the DNS servers currently offered by Pi-hole to find out their maximum DNS packet size:

##### Name ##### Address ##### Maximum packet size
Google (ECS) `8.8.8.8` 1400
`8.8.4.4` 1400
`2001:4860:4860:0:0:0:0:8888` 1400
`2001:4860:4860:0:0:0:0:8844` 1400
OpenDNS (ECS) `208.67.222.222` 1410
`208.67.220.220` 1410
`2620:0:ccc::2` 1410
`2620:0:ccd::2` 1410
Level3 `4.2.2.1` 8192
`4.2.2.2` 8192
Comodo `8.26.56.26` 4096
`8.20.247.20` 4096
DNS.WATCH `84.200.69.80` 4096
`84.200.70.40` 4096
`2001:1608:10:25:0:0:1c04:b12f` 4096
`2001:1608:10:25:0:0:9249:d69b` 4096
Quad9 (filtered, DNSSEC) `9.9.9.9` 1232
`149.112.112.112` 1232
`2620:fe::fe` 1232
`2620:fe::9` 1232
Quad9 (unfiltered, no DNSSEC) `9.9.9.10` 1232
`149.112.112.10` 1232
`2620:fe::10` 1232
`2620:fe::fe:10` 1232
Quad9 (filtered + ECS) `9.9.9.11` 512
`149.112.112.11` 512
`2620:fe::11` 1232
Cloudflare `1.1.1.1` 1452
`1.0.0.1` 1452
`2606:4700:4700::1111` 1452
`2606:4700:4700::1001` 1452
# Change Password for Web interface ```shell sudo pihole -a -p ```