When I log in to my AWS EC2 host with Ubuntu Linux server, I always see message like:
Welcome to Ubuntu 20.04.2 LTS (GNU/Linux 5.4.0-74-generic x86_64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage System information as of Wed Jun 23 12:03:21 UTC 2021 System load: 0.57 Usage of /: 0.6% of 629.64GB Memory usage: 1% Swap usage: 0% Processes: 261 Users logged in: 0 IPv4 address for eth0: 184.108.40.206 * Super-optimized for small spaces - read how we shrank the memory footprint of MicroK8s to make it the smallest full K8s around. https://ubuntu.com/blog/microk8s-memory-optimisation 0 updates can be applied immediately. *** System restart required *** Last login: Wed Jun 23 12:01:40 2021 from
- Should I always restart the system after seeing this message over ssh? Is it safe to restart when prompted like this?
- Where and how this message comes? Who is creating this message? Linux kernel? Ubuntu service?
- Who applied these updates as I never did it?
Please guide me to understand these queries.