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dns leakage on vpn?

Posted: Wed Oct 07, 2020 8:01 am
by jimm
Hi all,

Set up a VPN thru network manager. Installed two DNS servers known for privacy.

When I engage the VPN and go to websites** to check my vpn "footprint", I can see 0, 1 or 2 of my chosen DNS servers. If I pull up a terminal and type "cat /etc/resolv.conf", I can see my two chosen DNS servers, but I also show another DNS entry -- "10.19.0.1". Looking up this last entry says it's a "private network". Another source says it is a local network and is not accessible to the internet.

If I ping the address 10.19.0.1, I get ping times on the order of 1/4 second (~250 ms). Does this add up?



**
ipleak.com
whatsmydnsserver.com
ipleak.org
ipleak.net

Re: dns leakage on vpn?

Posted: Sat Oct 10, 2020 12:51 am
by JayM
What's your router's IP address on your LAN?

Re: dns leakage on vpn?

Posted: Sat Oct 10, 2020 1:19 am
by andyprough
jimm wrote: Wed Oct 07, 2020 8:01 am Hi all,

Set up a VPN thru network manager. Installed two DNS servers known for privacy.

When I engage the VPN and go to websites** to check my vpn "footprint", I can see 0, 1 or 2 of my chosen DNS servers. If I pull up a terminal and type "cat /etc/resolv.conf", I can see my two chosen DNS servers, but I also show another DNS entry -- "10.19.0.1". Looking up this last entry says it's a "private network". Another source says it is a local network and is not accessible to the internet.

If I ping the address 10.19.0.1, I get ping times on the order of 1/4 second (~250 ms). Does this add up?



**
ipleak.com
whatsmydnsserver.com
ipleak.org
ipleak.net
vpn's reserve private ip addresses to route your traffic. 10.19.0.1 is the private network address of your vpn.

Re: dns leakage on vpn?

Posted: Sun Oct 11, 2020 12:09 pm
by jimm
JayM wrote: Sat Oct 10, 2020 12:51 am What's your router's IP address on your LAN?

Looked up some commands on cyberciti.biz/faq/how-to-find-gateway-ip-address/

ip r
default via 10.18.0.1 dev tun0 proto static metric 50 <---- vpn
default via 192.168.1.1 dev eth0 proto dhcp metric 100 <---- routers configuration area

Re: dns leakage on vpn?

Posted: Sun Oct 11, 2020 12:11 pm
by jimm
andyprough wrote: Sat Oct 10, 2020 1:19 am vpn's reserve private ip addresses to route your traffic. 10.19.0.1 is the private network address of your vpn.

From the output of the IP command, that makes sense. My VPN exit was in Europe which would account for the long ping time. Thanks.