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Split-DNS problem
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I have encountered a repeatable problem with Split DNS.
I have 2 customers with OpenVPN AS servers.
Each connection on its own works perfectly. If I attempt to connect to both VPN servers at the same time then DNS breaks entirely.
I can't resolve any names, not on the specific VPNs, and not on the internet at large. The issue will be resolved when I disconnect BOTH VPN connections.
I have 2 customers with OpenVPN AS servers.
Each connection on its own works perfectly. If I attempt to connect to both VPN servers at the same time then DNS breaks entirely.
I can't resolve any names, not on the specific VPNs, and not on the internet at large. The issue will be resolved when I disconnect BOTH VPN connections.
Hi nsumner,
This sounds like you may have a routing clash rather than a DNS problem. Are you able to ping servers beyond the VPN server for each connection? Are you able to resolve IPs directly using nslookup <FQDN> <server>?
If you'd like further assistance, could you please post a copy of both connection logs, and the output of route table and ipconfig after connecting both connections. As this potentially involves some sensitive information, you may with to email this to us instead as this is a public forum.
Regards,
Eric
This sounds like you may have a routing clash rather than a DNS problem. Are you able to ping servers beyond the VPN server for each connection? Are you able to resolve IPs directly using nslookup <FQDN> <server>?
If you'd like further assistance, could you please post a copy of both connection logs, and the output of route table and ipconfig after connecting both connections. As this potentially involves some sensitive information, you may with to email this to us instead as this is a public forum.
Regards,
Eric
Eric Thorpe
Viscosity Developer
Web: http://www.sparklabs.com
Support: http://www.sparklabs.com/support
Twitter: http://twitter.com/sparklabs
Viscosity Developer
Web: http://www.sparklabs.com
Support: http://www.sparklabs.com/support
Twitter: http://twitter.com/sparklabs
Hi nsumner,
Here's how to view Viscosity's log - https://sparklabs.com/support/kb/articl ... envpn-log/
Could you also send us a copy of your routing table after connecting both connections by typing 'route print' into a Command Prompt. This and your log may contain sensitive addresses, you may wish to email us instead, please keep in mind this forum is public.
https://www.sparklabs.com/support/#contact
Regards,
Eric
Here's how to view Viscosity's log - https://sparklabs.com/support/kb/articl ... envpn-log/
Could you also send us a copy of your routing table after connecting both connections by typing 'route print' into a Command Prompt. This and your log may contain sensitive addresses, you may wish to email us instead, please keep in mind this forum is public.
https://www.sparklabs.com/support/#contact
Regards,
Eric
Eric Thorpe
Viscosity Developer
Web: http://www.sparklabs.com
Support: http://www.sparklabs.com/support
Twitter: http://twitter.com/sparklabs
Viscosity Developer
Web: http://www.sparklabs.com
Support: http://www.sparklabs.com/support
Twitter: http://twitter.com/sparklabs
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