csqrtl - Linux
Overview
csqrtl is a command-line tool for managing SSL/TLS certificates, certificate signing requests (CSRs), and private keys. It’s commonly used by system administrators and developers to simplify certificate management tasks.
Syntax
csqrtl [global options] command [command options]
Options/Flags
Global Options:
- -h, –help: Print help and exit
- -v, –version: Print version information and exit
- -d, –debug: Enable debug output
- -c, –config: Specify a custom configuration file
Command Options: (Specific to each command, see csqrtl help <command>
for details)
Examples
Generate a new private key and CSR:
csqrtl create-csr --key-file my-key.pem --csr-file my-csr.pem
Renew an existing certificate:
csqrtl renew-cert --cert-file my-cert.pem --key-file my-key.pem
Install a new certificate and key:
sudo csqrtl install-cert --cert-file my-cert.pem --key-file my-key.pem
Common Issues
- Permission errors: Ensure you have the appropriate permissions to access the certificate and key files.
- Outdated OpenSSL: Upgrade to the latest version of OpenSSL for optimal functionality.
- Configuration file not found: Specify the configuration file path using the
-c
option if it’s not in the default location.
Integration
With Shell Scripts:
#!/bin/bash
# Generate a new certificate
csqrtl create-cert --key-file my-key.pem --cert-file my-cert.pem
# Install the certificate
sudo csqrtl install-cert --cert-file my-cert.pem
With Other Commands:
- awk: Extract specific fields from certificates or CSRs
- grep: Filter certificates or CSRs based on specific criteria
- openssl: Perform advanced cryptographic operations on certificates and keys
Related Commands
- openssl: OpenSSL command-line tool for cryptography
- acmetool: Automated Certificate Management Environment (ACME) client
- tinyssl: Command-line tool for TLS testing and introspection