baalajimaestro/traefik
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages 1 Wiki Activity Actions

Add a note on how to handle server first protocols

Browse source
This commit is contained in:
Roman Tomjak 2022-06-14 11:24:08 +01:00 committed by GitHub
parent 251798a778
commit ba7e9ed788
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
docs/content/routing/routers/index.md
View file

@ -673,6 +673,21 @@ If no matching route is found for the TCP routers, then the HTTP routers will ta
If not specified, TCP routers will accept requests from all defined entry points.
If you want to limit the router scope to a set of entry points, set the entry points option.
??? info "How to handle Server First protocols?"
To correctly handle a request, Traefik needs to wait for the first
few bytes to arrive before it can decide what to do with it.
For protocols where the server is expected to send first, such
as SMTP, if no specific setup is in place, we could end up in
a situation where both sides are waiting for data and the
connection appears to have hanged.
The only way that Traefik can deal with such a case, is to make
sure that on the concerned entry point, there is no TLS router
whatsoever (neither TCP nor HTTP), and there is at least one
non-TLS TCP router that leads to the server in question.
??? example "Listens to Every Entry Point"
**Dynamic Configuration**