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https://github.com/bobbyiliev/bash-ssl-checker-tool
A simple Bash script to check SSL certificate details for any domain from the command line, inspired by https://sslshopper.com
https://github.com/bobbyiliev/bash-ssl-checker-tool
bash hacktoberfest script ssl
Last synced: 12 days ago
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A simple Bash script to check SSL certificate details for any domain from the command line, inspired by https://sslshopper.com
- Host: GitHub
- URL: https://github.com/bobbyiliev/bash-ssl-checker-tool
- Owner: bobbyiliev
- License: mit
- Created: 2017-07-14T14:27:53.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2024-10-13T16:25:05.000Z (26 days ago)
- Last Synced: 2024-10-14T08:17:08.162Z (26 days ago)
- Topics: bash, hacktoberfest, script, ssl
- Language: Shell
- Homepage: https://leanpub.com/introduction-to-linux
- Size: 17.6 KB
- Stars: 47
- Watchers: 6
- Forks: 19
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Bash SSL checker tool
A simple and lightweight Bash script to check the SSL certificate status of a domain name. It's a command-line alternative to popular SSL checker tools, like [SSL Shopper](https://sslshopper.com), and provides a quick way to obtain key information about SSL certificates directly from your terminal.
The script has been tested on various Linux distributions, including CentOS, Ubuntu, Mint, and Debian.
## Features
The script retrieves and displays the following SSL certificate information:
- Domain name the SSL certificate is issued for
- Number of days until the SSL certificate expires
- Issue and expiry dates of the SSL certificate
- Certificate issuer details
- Supported TLS versions
- Certificate fingerprint (SHA1)
## Prerequisites
Ensure that `openssl` is installed on your system before running the script.
## Usage
To use the script, follow these steps:
1. Download the script using `wget`:
```bash
wget https://raw.githubusercontent.com/bobbyiliev/bash-ssl-checker-tool/master/ssl
```
2. Make the script executable:
```bash
chmod +x ssl
```
3. Run the script with the desired domain name:
```bash
./ssl yourdomain.com
```
## Example Output
Here is a sample of the output you can expect:
```
The bobbyiliev.com domain name seems valid
# SSL Certificate Details:
Domain: CN = bobbyiliev.com
----
# SSL Certificate Expiry:
Expires in: 90 days
----
# Important Dates:
Issued On: Jun 4 09:05:19 2020 GMT
Expires On: Sep 2 09:05:19 2020 GMT
----
# Issuer Information:
Issuer: C = US, O = Let's Encrypt, CN = Let's Encrypt Authority X3
----
# Supported TLS Versions:
| TLSv1.0
| TLSv1.1
| TLSv1.2
----
# Certificate Fingerprint:
SHA1 Fingerprint = C1:E1:6C:46:8A:74:94:14:00:94:88:B9:4B:2B:C5:90:79:DE:72:64
----
```
## Notes
- The script requires `openssl`, `host` and `nmap` to be installed on your system. You can install them using your package manager:
```bash
sudo apt-get install openssl nmap host # Ubuntu/Debian
sudo yum install openssl nmap host # CentOS/RHEL
```
## Additional Resources
For more information, check out the [full blog post here](https://devdojo.com/bobbyiliev/ssl-checker-linux-command-line-tool).