Score:0

Whole Network is not working after reboot and hostname change

cn flag

So I tried to change hostname and edited /etc/hosts. After I rebooted the Server, my whole Network was unavailable, so I run my changes back. Now I can't reach anything outside the machine, can't ping google, can't make nslookup and I can't even connect to the machine using ssh or ftp. I tried lots of different things, but I can't bring my network up and running. Does someone have an idea to fix this?


The Server is running Ubuntu version 20.04.3 LTS

/etc/hosts:

content of /etc/hosts

ip a:

ip a output part 1

ip a output part 2

in flag
Can you [edit] your question to include: (0) the version of Ubuntu Server you're running (1) the contents of `/etc/hosts` (2) the output of `ip a`. With this, something might stand out to be corrected
mangohost

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