Temporary failure in name resolution "Could not resolve host: download.bt.cn"

anthonyinit

Hello guys,
I'm trying to repair my panel and I get this error "Could not resolve host: download.bt.cn"

in sudo nano /etc/resolv.conf i can see there are two line

nameserver 127.0.0.53
options edns0 trust-ad

I tried to add Cloudflare DNS 1.1.1.1 and 1.0.0.1

every time I restart it reverse it back to its default.

How can i resolve this issue?

aaPanel_Kern

anthonyinit
Hello, is this file configured with dns?
Centos: change ens33 according to your NIC name
/etc/sysconfig/network-scripts/ifcfg-ens33

debian:
/etc/network/interfaces

anthonyinit

aaPanel_Kern

Hello thank you for your reply.

I'm using Ubuntu 20

This is what i see in this directory /etc/network/interfaces

aaPanel_Kern

anthonyinit
ubuntu: 😅
/etc/netplan/01-network-manager-all.yaml

anthonyinit

aaPanel_Kern 😀

This is what's inside that conf file.

network: ethernets: eth0: addresses: - 1xx.xxx.1xx.1xx/21 - xx4.1xx.1xx.1xx/20 - xx7.2xx.xxx.xx1/20 - 2xx.xxx.xxx.9/20 - 1xx.1x6.1xx.1xx/21 gateway4: 1xx.xxx.xxx.1 version: 2
I don't want to put my real IPs here 🙂

aaPanel_Kern

anthonyinit
where is your server? Ask your server provider?

anthonyinit

aaPanel_Kern I have full root access is there a way to solve this issue? this is an unmanaged server therefore they will not help to configure anything tho'

aaPanel_Kern

anthonyinit
Are you using the ubuntu system they provide? If yes, please consult

aaPanel_Kern

anthonyinit

Will the configuration in the linux Tools of the aap store be restored?

Also try adding dns to /etc/netplan/01-network-manager-all.yaml file. Be sure to back up your files first
The yaml file format is very strict, please be sure to pay attention to the format.

          nameservers:
                addresses: [1.1.1.1,8.8.8.8]

anthonyinit

aaPanel_Kern

I used IP Setup Tool to add all my IPs I think this tool messed up everything because in the backup "ymal" / original
I see many entries

network:
version: 2
renderer: networkd
ethernets:
ens18:
match:
macaddress: 00:xx:xx:xx:xx:xx
addresses:
- 1xx.1xx.xxx.xxx/21
#- 2605:a140:xxxx:xxxx:0000:0000:0000:0001/64
#gateway6: fe80::1
routes:
- to: 0.0.0.0/0
via: xxx.xxx.1xx.1
on-link: true
nameservers:
search: [ invalid ]
addresses:
- 2xx.1xx.15.xx
- 2xx.1xx.15.xx
#- 26xx:axxx:xxxx::1:53
#- 26xx:a1xx:xxxx::2:53

anthonyinit

aaPanel_Kern

I removed the IP Setup Tool and manually edit the "yaml" now everything works fine i was able to repair the panel without any error.

I think IP Setup Tool simply adding IPs and not properly confg... anyways i will not use it anymore cuz it's a mess.

Thank you for all the support 😀