dns leak (windows)
Nobody has claimed this yet.
- Dominant language
- C++
- Stars
- 1.2k
- Forks
- 467
- PR merge metrics
- No merged PRs in 30d
Description
Hello.
I test on windows 7. There is a dns leak. In the code I see there is a protection against this, but it does not work.
[](https://github.com/OpenVPN/openvpn3/blob/4996c38ed45fc0cf87435b8c96441699195ae952/openvpn/tun/win/wfp.hpp#L49
https://github.com/OpenVPN/openvpn3/blob/4996c38ed45fc0cf87435b8c96441699195ae952/openvpn/tun/win/client/tunsetup.hpp#L677)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the DNS leak on Windows 7, then inspect the protection logic in openvpn/tun/win/wfp.hpp and openvpn/tun/win/client/tunsetup.hpp around the linked lines. Trace why the existing protection is ineffective and verify that DNS requests no longer leak outside the VPN when the issue is fixed.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- networking, security
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100