# PMM2 - Connection check failed **URL:** \ **Category:** Uncategorized\ **Tags:** pmm, mysql, percona\ **Created:** [June 2, 2022, 8:44pm UTC](https://forums.percona.com/t/pmm2-connection-check-failed/15965 "2022-06-02T20:44:35Z")\ **Posts on this page:** 3\ **Page:** 2
**Author:** ![Sanjana\_Chandrasheka](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@Sanjana\_Chandrasheka](https://forums.percona.com/u/Sanjana_Chandrasheka)\ **Post date:** [June 4, 2022, 3:13pm UTC](https://forums.percona.com/t/pmm2-connection-check-failed/15965/21 "2022-06-04T15:13:38Z")
@matthewb thanks for the detailed explanation , I just have one last confusion, ```auto --tls-ca=TLS-CA Path to certificate authority certificate file --tls-cert=TLS-CERT Path to client certificate file --tls-key=TLS-KEY Path to client key file ``` these fields when adding mysql service are again the self-signed certs created by me right? Thanks a lot, this helped me clear a lot of confusions I had. ---
**Author:** ![matthewb](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/matthewb/32/34_2.png) [@matthewb](https://forums.percona.com/u/matthewb)\ **Post date:** [June 4, 2022, 5:26pm UTC](https://forums.percona.com/t/pmm2-connection-check-failed/15965/22 "2022-06-04T17:26:23Z")
Those parameters would be used for _any_ SSL certificate. Doesn’t matter if self-signed or from 3rd party. Those parameters are used when your SSL cert files are in a non-standard location ---
**Author:** ![Sanjana\_Chandrasheka](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@Sanjana\_Chandrasheka](https://forums.percona.com/u/Sanjana_Chandrasheka)\ **Post date:** [June 4, 2022, 5:31pm UTC](https://forums.percona.com/t/pmm2-connection-check-failed/15965/23 "2022-06-04T17:31:36Z")
@matthewb okay , got it thanks a lot ! [Previous page](https://forums.percona.com/t/pmm2-connection-check-failed/15965.md?page=1)