If you still run a server with CentOS 5.x and want to install PHP 7.x on the server with Directadmin and build process interrupts with an error "undefined reference to isfinite", here you can find a possible solution.
If emails on your Directadmin server stopped delivering to your users, and the error "550 Email blocked by combined.rbl.msrbl.net" is reported, here is what you should do.
If you have a custom installation of cURL with support of HTTP/2 and the recent version 7.54.0 fails to built with the error: implicit declaration of function 'SSL_CTX_set_srp_username', here is how you can fix it.
Here you can find a guide on how to create a cronjob to use sa-learn to teach spamassassin for all existing users on your server with Directadmin.
NGINX 1.13.0 mainline version has been released on 2017-04-25 with a support of TLSv1.3. And while we are waiting for an official release of OpenSSL 1.1.1 we prepared a guide on how to get NGINX as a reverse proxy working with TLS v1.3 on Directadmin server with custombuild 2.0.
Having 10-20-30... domains (and more) in ca.san_config is a challenge to get them verified at once. As it fails randomly with HTTP/500 error. Solved by giving a chance to re-try...
If Directadmin fails to write customization into NGINX configs with an error "Unable to write customization" and details show "24: Too many open files" when checking its configuration. That happens due to nproc limit of Directadmin.
Installation of PECL extensions on a server with Directadmin is rather simple, but at the same time many users are confused with it. Here is a guide on how to make it in a easy way.
I have set up dmarc on the server. I am receiving daily reports from Yahoo and Hotmail with no problem. But email reports from Gmail from address: email@example.com are frozen and rejected by the server.
If for any reason you want to uninstall proftpd and/or pureftpd in Directadmin and don't want to run any FTP server at all. Here is a guide on how to complete it.