If you wan’t easy external access to a MariaDB/MySQL/PostGreSQL/SQLite and some other known databases that consist of a single php file that is easy to setup on any webserver with PHP then Adminer is a great and handy little solution to install.
Here is a small screenshot of the system, it allows the most basic SQL features as creating a database, handle table schema, insert, update, create an query a database.
Adminer is also faster and tidier than phpMyAdmin that would be the closest similar management system.
Read more and download Adminer here
If you wan’t to do a simple loadtesting of your site, then i will recommend using Apache Bench, it’ simple to install
Installing Apache Bench
sudo apt install apache2-utils
Suppose you wan’t to test if your site can handle 100 request with 10 concurrent users.
ab -n 100 -c 10 https://www.pvangsgaard.com/
I got this result…took only 6 sec to handle 100 requests
If you need a quick self-signed certificate, you can create a key/pair, sign it in just one line.
openssl req -subj '/O=Company Name/CN=domain.com/C=US' -new -newkey rsa:2048 -days 1095 -nodes -x509 -keyout server.key -out server.crt
Replace Company Name, Domain with your own.
I would also recommend calling the server keys something like domain.tld.key/crt
This certificate will expire after 3 years (1095 days)
There is an easy way to find out where your disk used for, the command du can be used and with an max-depth option you can get a view on which folder hold most bytes.
pacman ~ # du -h --max-depth=1 /var/log
If you need ssh enabled on raspberry pi then login as pi user and type this command
sudo touch /boot/ssh