# TLS 1.2 and TLS 1.3

**URL:** https://discourse.haproxy.org/t/tls-1-2-and-tls-1-3/9865
**Category:** Help!
**Created:** [May 24, 2024, 10:09pm UTC](https://discourse.haproxy.org/t/tls-1-2-and-tls-1-3/9865 "2024-05-24T22:09:17Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Carlos.valenzuela](https://avatars.discourse-cdn.com/v4/letter/c/82dd89/32.png) [@Carlos.valenzuela](https://discourse.haproxy.org/u/Carlos.valenzuela)
#### Post date: [May 24, 2024, 10:09pm UTC](https://discourse.haproxy.org/t/tls-1-2-and-tls-1-3/9865/1 "2024-05-24T22:09:17Z")

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run TLS 1.3 service from another in TLS 1.2, how is it configured?

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<div class="post-metadata">

### Author: ![wlallemand](https://avatars.discourse-cdn.com/v4/letter/w/bc8723/32.png) [@wlallemand](https://discourse.haproxy.org/u/wlallemand)
#### Post date: [June 3, 2024, 9:34am UTC](https://discourse.haproxy.org/t/tls-1-2-and-tls-1-3/9865/2 "2024-06-03T09:34:01Z")

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What do you mean ? You want a frontend in TLS1.2 and a backend in TLS1.3?  
This could be done this way:

```auto
frontend front1
    bind *:443 ssl crt /etc/haproxy/foobar.pem ssl-min-ver TLSv1.2
    use_backend back1

backend back1
    server srv1 1.2.3.4:443 ssl ssl-min-ver TLSv1.3

```