Menu Close

Can you use LetsEncrypt with a subdomain?

Can you use LetsEncrypt with a subdomain?

You need to manually add the DNS value to verify that you own the subdomain. I am using the DNS method here because to me it’s simple and straight forward. Once you run the command. Letsencrypt will probably ask your e-mail address and then it will generate a TXT record.

Does a subdomain need SSL?

Yes, in general, a different SSL would be required for each subdomain, because each subdomain is considered a separate domain. However, there are wildcard SSL certificates available on the SSL market.

Can I use same SSL for subdomain?

The simple answer is a resounding Yes! You absolutely can use one SSL certificate for multiple domains — or one SSL certificate for multiple subdomains in addition to domains.

Can I use LetsEncrypt without domain name?

LetsEncrypt does not issue certs for IP addresses nor for custom dev-domains like . local . You can of course create and sign a certificate yourself, for every domain name you want, or even for IP addresses. The domain name can be anything, and doesn’t necessarily be the one you use to access the site.

How do I stop Certbot instance?

Here’s what I do next:

  1. find any running certbot processes.
  2. kill them (with -9) one by one.
  3. find and lock files.
  4. remove them.

How do I run Certbot?

Install Certbot in Ubuntu 20.04

  1. First, install PIP: Copy. sudo apt install python3 python3-venv libaugeas0.
  2. Set up a virtual environment: Copy. sudo python3 -m venv /opt/certbot/
  3. Install Certbot on Apache (or NGINX): Copy. sudo /opt/certbot/bin/pip install certbot certbot-apache.
  4. Create a symlink to ensure Certbot runs: Copy.

Can subdomains have different certificates?

Yes, if you have only 2-3 subdomains, you can get a multi-domain SSL certificate. Here, you need to treat your subdomains as separate SAN. For example, to secure,,, and, list as your main domain and list the other subdomains as separate SAN.

Can I use Letsencrypt with IP address?

What IP addresses does Let’s Encrypt use to validate my web server? We don’t publish a list of IP addresses we use to validate, and these IP addresses may change at any time. Note that we now validate from multiple IP addresses.

Can we install SSL on IP address?

The answer is ‘Yes. ‘ An SSL certificate can be issued for a public IP address. Both OV Single domain and OV multi-domain SSL certificates can be used for an IP address. You can write an IP address in the Common Name (CN) or a Subject Alternative Name (SAN) field (if you have chosen a multi-domain SSL).

How do I remove Certbot certificate?

Command to Delete Certbot Certificate Type the index number of the domain name’s certificate you want to delete and press enter. The issued certificate will be then deleted.

How do you fix another instance is running?

How to Fix Another Instance Is Running Error in Windows 10 / 11

  1. Fix 1 – Set Workstation Service to Automatic.
  2. Fix 2 – Uninstall Web Companion from PC.
  3. Fix 3 -Update Windows.
  4. Fix 4 -Clean Boot PC from Safe Mode.
  5. Fix 5 – Run SFC Scan.
  6. Fix 6 -Run DISM Scan.
  7. Fix 7 -End Problematic Process from Task Manager.

Is there a Let’s Encrypt guide for subdomains?

Let’s Encrypt doesn’t make any difference between a subdomain or not (www.~ is a subdomain too). So there’s no general guide available for subdomains specifically. I’ve moved your thread to the “Help” section, because I believe this isn’t really a Issuance Tech-question, although I can understand why you chose it.

Is it possible to generate a certificate for multiple subdomains?

It ispossible to generate a cert for multiple sub-domains. Just include those subdomains in the configuration file by their names: domains =,,, Then run certbot with the configuration file: certbot-auto -c config.ini You will have to verify ownership for each domain.

When will V2 lets Encrypt SSL wildcard/multiple subdomain support be available?

2 Lets Encrypt SSL Wildcard/multiple subdomain support will be available starting from February 27, 2018 officially. We introduced a public test API endpoint for the ACME v2 protocol and wildcard support on January 4, 2018. ACME v2 and wildcard support will be fully available on February 27, 2018

Why can’t I get let’s encrypt to recognize my server?

Otherwise your server could become blocked from Let’s Encrypt for too many bad requests. Just know that you’ll have to delete the certificates from the staging environment and retry with the production url since the tool cannot tell which certificates are “production” and which ones are “testing”.

Posted in Interesting