# VPN Certs seems to be expired

**URL:** <https://forums.balena.io/t/vpn-certs-seems-to-be-expired/262191>\
**Category:** openBalena\
**Created:** [February 25, 2021, 2:46pm UTC](https://forums.balena.io/t/vpn-certs-seems-to-be-expired/262191 "2021-02-25T14:46:10Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![wolf\_karl](https://avatars.discourse-cdn.com/v4/letter/w/e9bcb4/32.png) [@wolf\_karl](https://forums.balena.io/u/wolf_karl)\
**Post date:** [March 3, 2021, 7:59am UTC](https://forums.balena.io/t/vpn-certs-seems-to-be-expired/262191/4 "2021-03-03T07:59:19Z")

</div>

Hallo @ab77 ,  
thank you for the respond. I would like to try to follow your suggestions. I checked the time on the different devices and containers with the simple command `date`. This is the result.

balenaOS - Wed Mar 3 07:14:06 UTC 2021  
supervisor - Wed Mar 3 07:14:48 UTC 2021

open-balena host os - Wed Mar 3 08:19:30 CET 2021  
vpn container - Wed Mar 3 07:20:19 UTC 2021

So beside the timezone differenc everything seems fine.  
But I digged deeper and found under `config/certs/vpn/issued/vpn.<server_domain>.crt` the vpn cert, that was created with the quickstart script. And it seems, that this certificate expired on the 6. february. So my question is can I renew that cert and if yes what changes I have to do on the clients as well?

Other maybe a little naive question. Is it possible to use the same CA and CERT for vpn that I use for the Root? So that value, that is used for `OPENBALENA_ROOT_CA` can I use that for `OPENBALENA_VPN_CA` and `OPENBALENA_ROOT_CRT` for `OPENBALENA_VPN_CRT` and so on?

---

_[View the full topic](https://forums.balena.io/t/vpn-certs-seems-to-be-expired/262191)._