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Stephen Ostermiller
Asked: 2018-04-17 18:14:49 +0800 CST

How do up upgrade LetsEncrypt certbot to version 0.22 which supports wildcard certificates?

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To get a wildcard SSL certificate from LetsEncrypt you need to run certbot version 0.22 or later according to https://community.letsencrypt.org/t/acme-v2-production-environment-wildcards/55578

I've installed certbot from apt using

sudo apt-get install certbot

However, that reports:

certbot is already the newest version (0.17.0-2).

How can I upgrade certbot to a version that supports wildcard certificates?

software-installation apt ssl letsencrypt

3 Answers

  1. If you have already installed Certbot, you should add a parameter to apt-get install to upgrade only a specific package

    sudo apt-get update
sudo apt-get install --only-upgrade certbot

    Check version number

    certbot --version || /path/to/certbot-auto --version

    Reference answer: How to upgrade a single package using apt-get?

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  2. As the certbot site indicates, the certbot team maintains a PPA. The certbot package is at 0.22.2 on all supported versions of Ubuntu in that PPA. (What are PPAs and how do I use them?)

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  3. Check version number:

    certbot --version

    On Ubuntu systems, the Certbot team maintains a PPA. You can add it to your list of repositories and install Certbot by running the following commands:

    $ sudo apt update
$ sudo apt install software-properties-common
$ sudo add-apt-repository universe
$ sudo add-apt-repository ppa:certbot/certbot
$ sudo apt install certbot

    (source)

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