When I was trying to run acme.sh to generate SSL certification, I got an error:
[Sat May 9 18:54:10 HKT 2020] tcp port 80 is already used by
[Sat May 9 18:54:10 HKT 2020] Please stop it first
[Sat May 9 18:54:10 HKT 2020] _on_before_issue.
I believe it is expected to show the service which is using port 80 in the first line, but nothing at all. I have to find out my self.
sudo netstat -tulpn | grep :80
I got the output:
tcp6 0 0 :::80 :::* LISTEN 10541/apache2
Oh, yes, Apache2. I wanna shut it down temporally:
sudo systemctl stop apache2
Now, generate cert again:
~/.acme.sh/acme.sh --issue -d mydomain.me --standalone --keylength ec-256
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