Dear illustrious leaders and the senior members, Debian-user ML, I liked the following two papers of Prof. Shri C K Raju: ajol-file-journals_601_articles_221195_submission_proof_221195-7072-545591-1-10-20220325.pdf https://www.ajol.info/index.php/ajct/article/download/221195/210502 ajol-file-journals_601_articles_222634_submission_proof_222634-7072-544552-1-10-20220309.pdf https://www.ajol.info/index.php/ajct/article/download/222634/210050
and I tried to read Prof. Shri C K Raju's blog pages, say the one at http://ckraju.net/blog/?p=189 I received a Firefox-esr notice: "Your PHP installation appears to be missing the MySQL extension which is required by WordPress." Searching the internet, I reached the Stack Overflow page with the partial title: Your PHP installation appears to be missing the MySQL extension which is required by WordPress at: https://stackoverflow.com/questions/17694568/php-your-php-installation-appears-to-be-missing-the-mysql-extension-which-is-r#22779915 I followed both the first solution and the approved solution. I searched in synaptic: mysql-server php5-mysql apache The nearest that are available in Debian Bullseye : default-mysql-server default-mysql-server-core php-mysql php7.4-mysql apache2 php-db along with their dependencies. I installed them all. Then I tried to follow the instructions: # sudo /etc/init.d/mysql status sudo: /etc/init.d/mysql: command not found # sudo /etc/init.d/mysql start sudo: /etc/init.d/mysql: command not found # /etc/init.d/apache2 restart Restarting apache2 (via systemctl): apache2.service. The blog pages still fail to load. Please feel free to advise. Best wishes, Rajib Etc.