How to fix SSL handshake failed

[firstorme]

hello i just installed flarum and i redirected forum.mydomain.com to my ip on cloudflare but when i want to access to my website (forum.mydomain.com) it make this error

thank you !

[KangJL]

What SSL mode are you using on CloudFlare (flexible, full or strict)?
If it is full or strict, you will need self-signed or SSL cert installed in the VPanel.

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[firstorme]

full

[KangJL]

Did you install any self-signed or SSL cert in the Vpanel of the hosting account?
If not, you need to do this

@KangJL

If you’re using free hosting with your own domain or a subdomain, you’ll want to make this website work over HTTPS (SSL). Fortunately, InfinityFree provides all the tools you need to make it so. This guide uses the control panel functions and the Free SSL Certificates tool provided by InfinityFree to get SSL up and running on your site. Step 1: Set up the domain on your hosting account The first thing to do is to set up the domain name on your hosting account. When you create a new hosting ac…

In order to get a padlock in the address bar in your website, you need to install an SSL certificate on your account. This article describes how to do that. Installing an SSL certificate The first step to install an SSL certificate is of course to get the SSL certificate. You will need to get this SSL certificate at a certificate vendor of your choice. InfinityFree also provides free SSL certificates from the client area, but you are free to use any other recognized SSL vendor too. If you al…

[firstorme]

cloudflare already give me a certificate and that what i’m using on my website and its working fine but when i use my subdomain forum. it make that error

[KangJL]

@firstorme

cloudflare already give me a certificate

This will work well for flexible mode only.
If you want full mode to work, you need minimally a self-signed cert installed for domain/subdomain on hosting account as well.

[firstorme]

how do i get a self-signed certificate?

[KangJL]

From client area

https://app.infinityfree.net/sslCertificates

[firstorme]

i dont know but it told me The selected custom domain is already in use and cannot be added to an account. but its not mydomain.com its forum.mydomain.com

[KangJL]

@firstorme

selected custom domain is already in use

You are supposed to get your self-signed or SSL cert from the client area.
I am assuming your subdomain is already added to the hosting account…

[firstorme]

i already have one

[KangJL]

You still do not get it.
What about the subdomain?

[firstorme]

i dont have any ssl for it.
and yeah XD i still not get it

[jaikrishna.t]

duh, create a new self-signed cert for the forum domain.

[KangJL]

If you do not have self-signed or SSL cert for subdomain, do you think it can work?

[firstorme]

oh ok i found the problem XD thank you