One of our production web application runs on a dedicated node in DO (Digital Ocean) cloud server. This web application has following services running. Elixir Phoenix API server React.js client server Redis caching server Bots (Slack) Few days back, Digital Ocean triggered an urgent maintenance for Meltdown and Spectre Mitigations resulting into a reboot of our PROD server. DO did alert us in advance by sending an email notification with schedules. But seems we missed these schedules accidentally. Thus, our PROD web application was suddenly down after this auto reboot / restart by DO forced maintenance. We realised that we

Following is an handy list of frequently used Linux (Ubuntu flavour) console commands Find Files find . -name '*.cnf' find . -name 'hello.workd' The dot here represents all files and folders in current path Mysql DUMP - Import and Export Export mysqldump -u username -p database_name > file_name_to_save.sql Import mysql -u username -p database_name Install LAMP on Ubuntu sudo apt-get install tasksel sudo tasksel sudo tasksel install lamp-server Install Apache2 on Ubuntu sudo apt-get update sudo apt-get install apache2 The /var/www path is the document root for the apache web apps. SCP - File