DNS.Over.HTTPS
Description
This indicates an attempt to use the DNS over HTTPS (DoH) protocol.DNS over HTTPS is a protocol which performs Domain Name System resolution via the HTTPS protocol. The goal of the protocol is to increase user privacy, security and performance.
Note: This signature requires "deep-inspection" in FortiOS 5.0 and above to detect for custom servers used to perform DoH.
Affected Products
DNS over HTTPS
Impact
Unexpected network communication
Technology
Browser-Based, Network-Protocol, Client-Server, Peer-to-Peer, Cloud-Based, Mobile-Device
Behavior
- Tunneling
Default Ports
- TCP/443
Version Updates
Date | Version | Detail |
---|---|---|
2022-07-12 | 21.354 | Sig Added |
2021-10-21 | 18.183 | Sig Added |
2020-07-20 | 15.889 | Sig Added |
2020-04-14 | 15.816 | Sig Added |
2020-01-03 | 15.752 | Sig Added |
2019-05-07 | 14.608 |