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Temporary Failure in Name Resolution Debian Linux

jnic
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I am tying to install Pi-Hole in Debian Linux in a VM and i am unable to resolve host when I run the command to install it (curl -sSL https://install.pi-hole.net | bash)

pihole.PNG.25a98a2c16e756609dfa56b7321965a1.PNG

I am able to ping my router and other devices on my LAN, but unable to ping any internet IPs

ping.PNG.ab92780602389e3d148a19cfb780935e.PNG

This is how my network interface is configured on the machine

59c2ef7e0c023_networkinterfaces.PNG.1283caf6087d45bd19eff7be3e16504c.PNG

My router is Pfsense 2.3.4

I can access the internet form all other devices on my network including the VM host.  I have a Debian 9.0.0 running in Hyper-V on Windows 10.  I have a external virtual switch connected to my LAN.

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29 minutes ago, Name Taken said:

Try changing your DNS server to a different one in /etc/resolv.conf.

i think i have some wired DNS config on Pfsense, after changing DNS seams to be working 

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