hello I have my own dns server made by PowerDNS. Now I’m trying to connect all of my domain will be generate letsencrypt ssl automatically. Now I’m gave below command and put the dns manually everything is going well
You don’t need to get a txt record, you need to create one. The name and contents of that record are as specified in the screen shot you provided. You need to create that record, and once you’ve done that, press Enter to tell Let’s Encrypt to validate that you’ve done so.
If you’re willing to go outside of the panel, you can automate this process using the method that @mnordhoff described above. Otherwise, it literally does have to be done manually (each time you renew this certificate) by creating a new DNS TXT record of your own with the value that Certbot tells you.