ActiveGate version 1.165 or later
ActiveGate can serve a custom certificate instead of the default one. You need a file in
PKCS#12 format that contains a private key and its corresponding certificate chain.
To use Server Name Indication, include multiple certificates and keys in a single file.
Configure a custom certificate
To configure ActiveGate to use a custom certificate:
Copy the certificate file to the
On Linux, make sure that copied certificate file permissions include the ActiveGate user you designated to run ActiveGate. If you didn't specify a custom user during installation, use the default
On Windows, services run as a local service and no file permission modification is required.
Add the following entries to the
[com.compuware.apm.webserver] certificate-file = certificate-file.p12 certificate-password = password certificate-alias = friendly-name
- The certificate password provided in the
certificate-passwordproperty is obfuscated after ActiveGate restart and the obfuscated password is stored in the
- If the certificate doesn't have a friendly name, you can omit the
PEMfile format isn't supported.
- The password for the
PKCS#12file must be the same as the password for the key contained in this file.
Don't use the
-twopassoption in the
- It's not possible to use multiple certificate files.
When the certificate file and password are specified, the ActiveGate tries to use the defined configuration.
If either the file or the password is missing, the ActiveGate will silently fall back to the default configuration. The log entry in both cases is the same.
If the ActiveGate tries to use the configured certificate and determines that the configuration is unusable, it will use the default SSL certificate and write the following log entry:
UTC WARNING [<1>] [CollectorImpl] Unusable custom SSL config, falling back to default.
The ActiveGate additionally logs the reason why it couldn't use the configured certificate. For example, if the alias doesn't match the file contents, the ActiveGate will write a similar line in the log file:
UTC SEVERE [<1>] [SSLEnvironment] missing configured-alias entry in keystore:/var/lib/dynatrace/gateway/config/../ssl/cert-file.p12, available aliases: available-alias,
Create a certificate file for testing
To create a self-signed
PKCS#12 certificate file for testing
Generate a key and a self-signed certificate:
openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 -subj "/CN=localhost"
Convert the generated files to
openssl pkcs12 -export -inkey key.pem -in cert.pem -out cert_key.p12
or, to set a friendly name, use:
openssl pkcs12 -export -inkey key.pem -in cert.pem -out cert_key.p12 -name friendly-name