# Connection to server 5.0 over https from Client is not possible
**URL:** https://discuss.tryton.org/t/connection-to-server-5-0-over-https-from-client-is-not-possible/1631
**Category:** Developer
**Created:** [August 1, 2019, 10:11pm UTC](https://discuss.tryton.org/t/connection-to-server-5-0-over-https-from-client-is-not-possible/1631 "2019-08-01T22:11:26Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@oscar](https://discuss.tryton.org/u/oscar)
#### Post date: [August 1, 2019, 10:11pm UTC](https://discuss.tryton.org/t/connection-to-server-5-0-over-https-from-client-is-not-possible/1631/1 "2019-08-01T22:11:26Z")
Hi,
I activated SSL in Tryton server 5.0 (ubuntu), in config file, adding:
[ssl]
privatekey = /home/psk/.flask/key.pem
certificate = /home/psk/.flask/cert.pem
I created self-signed certificate using common name: localhost
My log when run server seems ok:
[2019-08-01 21:42:36,392] INFO werkzeug \* Running on [https://localhost:8000/](https://localhost:8000/) (Press CTRL+C to quit)
But in Login / Profile, ever localhost shows
I can not connect to server from client, ever I get this message:
“Could not connect to the server”
In debug mode appears
ERROR:tryton.rpc:[Errno 104] Connection reset by peer
I tried to remove known\_hosts of client in /home/psk/.config/tryton/5.0
But I seems nothing works
I try test in web browser ([https://localhost:8000/](https://localhost:8000/)) and server response favicon, etc,
Maybe I missing something? or maybe my certificate is bad?
---
### Author:  [@ced](https://discuss.tryton.org/u/ced)
#### Post date: [August 1, 2019, 10:45pm UTC](https://discuss.tryton.org/t/connection-to-server-5-0-over-https-from-client-is-not-possible/1631/2 "2019-08-01T22:45:47Z")
Tryton client verify the SSL certificate against the OS Certification Authority. If you want to use a different list of authorities, you can create a [`ca_certs` file](http://docs.tryton.org/projects/client-desktop/en/5.0/usage.html#configuration-file).
Normally, there should be some error message in the logging output.