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LabCA icon

LabCA

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A private Certificate Authority for internal (lab) use, based on the open source ACME Automated Certificate Management Environment implementation from Let's Encrypt (tm).

LabCA screenshot 1

License model

  • FreeOpen Source

Application type

Platforms

  • Self-Hosted
  • Docker
  • Debian
  • Linux
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LabCA information

  • Developed by

    hakwerk
  • Licensing

    Open Source and Free product.
  • Written in

  • Alternatives

    3 alternatives listed
  • Supported Languages

    • English

GitHub repository

  •  405 Stars
  •  39 Forks
  •  11 Open Issues
  •   Updated Feb 6, 2025 
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LabCA was added to AlternativeTo by adri66 on Apr 14, 2024 and this page was last updated Apr 14, 2024.
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What is LabCA?

More and more websites and applications are served over HTTPS, where all traffic between your browser and the web server is encrypted. With standard HTTP the (form) data is unencrypted and open to eavesdroppers and hackers listening to communications between the user and the website. Therefore the Chrome browser now even warns about unsafe plain HTTP sites to nudge users towards HTTPS.

To a lesser extent this also applies to internal applications and sites that are not exposed publicly. Just because the users may have a higher level of trust versus users of a public facing website doesn’t mean sensitive content shouldn’t be protected as much as possible. Lots of hacking and theft occur from within a company’s own walls, virtual or real. Also, no user should get used to ignoring any browser warnings (e.g. about self-signed certificates), even for internal sites.

For the public internet, Let’s Encrypt™ has made a big impact by providing free HTTPS certificates in an easy and automated way. There are many clients available to interact with their so called ACME (Automated Certificate Management Environment). They also have a staging environment that allows you to get things right before issuing trusted certificates and reduce the chance of your running up against rate limits.

One technical requirement however is to have a publicly reachable location where your client application and their server can exchange information. For intranet / company internal applications or for testing clients within your organization this may not always be feasible.

Luckily they have made the core of their application, called “Boulder”, available as open source. It is possible to install Boulder on your own server and use it internally to hand out certificates. As long as all client machines / laptops in your organization trust your root CA certificate, all certificates it signed are trusted automatically and users see a green lock icon in their browsers.

Also if you are developing your own client application or integrating one into your own application, a local test ACME can be very handy. There is a lot of information on the internet about setting up your own PKI (Public Key Infrastructure) but those are usually not automated.

Getting Boulder up and running has quite a learning curve though and that is where LabCA comes in. It is a self-contained installation with a nice web GUI built on top of Boulder so you can quickly start using it. All regular management tasks can be done from the web interface. It is best installed in a Virtual Machine and uses Debian Linux as a base.

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