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# Update CA trusted root certificates on Linux server
- URL: https://www.bagz.fr/update-ca-trusted-root-certificates-on-linux-server/
- Published: 2017-10-18T13:10:01.000Z
- Updated: 2017-10-18T13:10:01.000Z
- Author: bgazui
- Tags: Linux, #Migrated-1790668826633, #wp, #wp-post, #Import 2026-09-29 08:00

If you're getting many "unstrusted issuer" alerts in your app logs, it might be due to some CA trusted certificates outdated.  
To fix that, just perform an update:

#### For Ubuntu/Debian

update-ca-certificates

#### For CentOS/RedHat

update-ca-trust extract