Dell ThinOS 10.x App Builder User Guide
Generating certificates manually on Ubuntu 24.04 for Managed Clients using OpenSSL
This sections explains how to manually generate an RSA private key and a self-signed certificate on Dell client devices with Ubuntu 24.04 for Managed Clients.
Prerequisites
- System requirements: OpenSSL package installed.
- Permissions: User account with sudo privileges.
- Information needed:
- Common Name (CN) for the certificate (for example, domain name).
- Wanted certificate validity period (in days).
- Security considerations: Choose a secure location for storing your private key and certificate.
Steps
- Open Terminal.
-
Run the OpenSSL command to generate the Private Key:
openssl genpkey -algorithm RSA -out "$PRIVATE_KEY" -pkeyopt rsa_keygen_bits:3072
-
Run the OpenSSL command to generate a Self-Signed Certificate:
openssl req -new -x509 -key "$PRIVATE_KEY" -out "$PUBLIC_CERT" -days "$VALIDITY_DAYS" -subj "/CN=$COMMON_NAME"
-
Verifying the Certificate and Key:
openssl dgst -verify "$PUBLIC_KEY_PATH" -keyform PEM -sha256
NOTE:Replace the environment variables $PRIVATE_KEY, $PUBLIC_CERT, $VALIDITY_DAYS, $COMMON_NAME, $PUBLIC_KEY_PATH with values before running the commands.
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