Network Interface | DNS Configuration Problem

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Joined: 03 Jun 2020, 01:07

Network Interface | DNS Configuration Problem

Post by flipsyd » 03 Jun 2020, 01:41

I'm new user with the following hardware and the setup and installation of the device and HDD went well.
  • Hardware: F2-210
  • Current TOS Version: 4.1.24-2005180955
  • HDD: Seagate Iron Wolf Nas
  • Setup: Single Disk
  • IP Assignment: Static
Network configuration (static) in TOS Desktop is not recognizing the DNS server I add.
Because of this problem, it is unable to connect to the internet / download any apps.

Unable to resolve FQDN which I believe due to DNS configuration on the TOS Desktop.
  • # nslookup
  • Server:
  • nslookup: can't resolve '': Name or service not known
  • DNS is working on my other host running the same IP.
  • IP is reachable from the device.
  • The interface configuration are correct through SSH.
# cat /etc/network/interfaces
config interface 'lan'
option ifname 'eth0'
option netmask ''
option defaultroute 'true'
option proto 'static'
option ipaddr ''
option dns1 ''
option dns2 ''
option gateway ''

If I manually add the following lines through # vi /etc/resolv.conf
  • nameserver
  • nameserver
Performing DNS check after the changes shows successful resolution.
  • # nslookup
  • Server:
  • Name:
  • Address 1:
  • Address 2: 2607:f8b0:400b:809::200e
Any help would be appreciated.
Why is TOS used my localhost as my default DNS when I have configured my eth0 with DNS?
  • During reboot /etc/resolv.conf gets erased, which apparently known to linux.
  • The proper way of adding DNS should be through /etc/network/interfaces which is already been properly configured.

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Posts: 1
Joined: 30 Jun 2020, 23:02

Re: Network Interface | DNS Configuration Problem

Post by splaquet » 30 Jun 2020, 23:05

Have you tried in the Networking Interface area? I'm not positive that these settings will trickle through, but my machine and LAN seem to work smoothly (well, as smooth as it gets with their TOS 😝 )

Screenshot 2020-06-30 11.03.16.png

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Joined: 13 Dec 2019, 15:15

Re: Network Interface | DNS Configuration Problem

Post by TMSupport » 01 Jul 2020, 15:52

Hi flipsid,
Please SSH access your TNAS and login as root, input vi /etc/resolv.conf
Press i on the keyboard to edit
input nameserver
Press shift+: and input wq to save the change.

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