> For the complete documentation index, see [llms.txt](https://engineering-ing-inf-rd.gitbook.io/true-connector/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://engineering-ing-inf-rd.gitbook.io/true-connector/modify-configuration/hostnamevalidation.md).

# Hostname validation

You need to have valid truststore, with public keys from external systems (towards which you are making https calls) imported into truststore. Set truststore and its password by modifying following properties

```
TRUSTORE_NAME=truststoreEcc.jks
TRUSTORE_PASSWORD=allpassword
```