[SOLVED] OpenDNS issue

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Lumikki
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[SOLVED] OpenDNS issue

Post by Lumikki »

What software in Linux Mint is trying to use OpenDNS (208.67.220.220, 208.67.222.222)?
I just don't like how it's "knocking" my firewall as I don't allow any other than my own defines DNS be used.
I'm not using OpenDNS, but something in my computer is using it, how I can find it?
Last edited by Lumikki on Fri Jun 07, 2013 11:06 am, edited 1 time in total.
Asus P7P55D, i5 750 2.6Ghz, 4GB DDR3, GeForce 750Ti, 80GB Intel SSD, Dell 1600x1200, Dual boot, Linux Mint 18 Cinnamon, Windows 7

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xenopeek
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Re: OpenDNS issue

Post by xenopeek »

Linux Mint falls back to using OpenDNS if your default DNS can't be found for some reason (allowing you to at least use the Internet if the network is up).
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Lumikki
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Re: OpenDNS issue

Post by Lumikki »

Okey, thank you. So Linux Mint has it's own DNS server in users computer, what use users defines DNS's and the OpenDNS.
I assume this because if I hit just old nslookup, it says DNS server is 127.0.0.1, what means my own computer.

Okey, founded the config. It was in /etc/resolv.conf
Seems some software is controlling it. There is the 127.0.0.1 and OpenDNS server.
I removed the "fallback" OpenDNS server configurations, from the place what was sayed in the resolv.conf file.
Asus P7P55D, i5 750 2.6Ghz, 4GB DDR3, GeForce 750Ti, 80GB Intel SSD, Dell 1600x1200, Dual boot, Linux Mint 18 Cinnamon, Windows 7

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xenopeek
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Re: [SOLVED] OpenDNS issue

Post by xenopeek »

Linux Mint uses dnsmasq, a dns forwarder. So yes your network configuration points to the address on which dnsmasq runs. dnsmasq, running in non-caching mode to avoid caching exploits, forwards DNS requests to your DNS. If your DNS can't be found, Linux Mint falls back to OpenDNS. dnsmasq is used to correctly handle DNS requests when you've connected to a VPN, like when connecting remotely to a corporate network. dnsmasq is started and controlled by NetworkManager.
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