[SOLVED] Messed up my network configuration so much DNS broke

voxell · 2024-11-08 15:59:15

i reinstalled arch. my problems are fixed.

seth wrote:

hopefully this works.
This is not a problem that you can fix with a re-installation
does not block 1.1.1.1 as far as I am concerned (it used to work before I broke dns), and the other is campus internet (eduroam) which also does not block 1.1.1.1 either
This is not about the IP, I guess "ping -c 1.1.1.1" still works, but the port; 53 being for DNS.
This helps to force you to use a specific DNS server to control your access to information - except that https://wiki.archlinux.org/title/DNS_over_HTTPS_servers exists.

if it were a problem i couldnt have solved with a reinstallation, why does it work now?

seth · 2024-11-08 16:05:16

dig @1.1.1.1 archlinux.org

voxell · 2024-11-08 17:50:58

seth wrote:

dig @1.1.1.1 archlinux.org

wow it really doesnt work, i have no idea what is wrong with this country. 8.8.8.8 works, but 1.1.1.1 doesnt:

$ dig @1.1.1.1 archlinux.org
;; communication error to 1.1.1.1#53: timed out
x3
; <<>> DiG 9.20.3 <<>> @1.1.1.1 archlinux.org
; (1 server found)
;; global options: +cmd
;; no servers could be reached

i am guessing at campus grounds 1.1.1.1 was indeed working but at dorm grounds it is banned. i have no idea. really. im sorry for the headache i may or may not have caused guys.

edit: and it works again??? on dorm grounds??? guys when i tell you i have no idea why it does or does not work i mean it. i literally havent changed anything in the setup and now this works:

$ dig @1.1.1.1 archlinux.org

; <<>> DiG 9.20.3 <<>> @1.1.1.1 archlinux.org
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50454
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: cc95dfb9f41ea39253eac589672e561736a88cf1c0e32e78 (good)
;; QUESTION SECTION:
;archlinux.org.                 IN      A

;; ANSWER SECTION:
archlinux.org.          1617    IN      A       95.217.163.246

;; Query time: 33 msec
;; SERVER: 1.1.1.1#53(1.1.1.1) (UDP)
;; WHEN: Fri Nov 08 21.09.03 +03 2024
;; MSG SIZE  rcvd: 86

Last edited by voxell (2024-11-08 18:31:07)

seth · 2024-11-08 20:03:12

The most likely explanation is that it's not the IP but the network connection itself is flaky, not necessarily inside the LAN, though.
You could try to keep "ping 1.1.1.1" and "ping _gateway" running in the background and see whether one or both of them at some point start to timeout.

Arch Linux

#26 2024-11-08 15:59:15

Re: [SOLVED] Messed up my network configuration so much DNS broke

#27 2024-11-08 16:05:16

Re: [SOLVED] Messed up my network configuration so much DNS broke

#28 2024-11-08 17:50:58

Re: [SOLVED] Messed up my network configuration so much DNS broke

#29 2024-11-08 20:03:12

Re: [SOLVED] Messed up my network configuration so much DNS broke

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