# Proxy a TCP tls backend without passthrough

**URL:** <https://community.traefik.io/t/proxy-a-tcp-tls-backend-without-passthrough/12886>\
**Category:** Traefik v2\
**Tags:** tcp\
**Created:** [December 31, 2021, 7:21am UTC](https://community.traefik.io/t/proxy-a-tcp-tls-backend-without-passthrough/12886 "2021-12-31T07:21:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![lostsquirrel](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/lostsquirrel/32/4703_2.png) [@lostsquirrel](https://community.traefik.io/u/lostsquirrel)\
**Post date:** [December 31, 2021, 7:21am UTC](https://community.traefik.io/t/proxy-a-tcp-tls-backend-without-passthrough/12886/1 "2021-12-31T07:21:53Z")

</div>

I have third party tcp service with a self signed cert, I want to proxy it with tcp tls certResolver by HostSNI,  
but from the traefik source code, it seems that the proxy didnot load any ca options