Installing and configuring tinyproxy on Ubuntu 22.04

Install and configure tinyproxy (if you want this system to function as a proxy)

In order to use the system as a proxy install and configure tinyproxy:

sudo apt update
sudo apt upgrade
sudo ufw allow 8888
sudo apt install tinyproxy
sudo touch /var/log/tinyproxy/tinyproxy.log
sudo chown tinyproxy:tinyproxy  /var/log/tinyproxy/tinyproxy.log

Add the IP addresses of systems you want to make use of the proxy to /etc/tinyproxy/tinyproxy.conf:

sudo vi /etc/tinyproxy/tinyproxy.conf

Add lines like:

Allow 198.35.34.96

And restart tinyproxy:

sudo systemctl restart tinyproxy.service
sudo systemctl status tinyproxy.service

Status should look like:

 <user>@<hostname>:~$ sudo systemctl status tinyproxy.service   
 ● tinyproxy.service - Tinyproxy lightweight HTTP Proxy
     Loaded: loaded (/lib/systemd/system/tinyproxy.service; enabled; vendor pre>
     Active: active (running) since Thu 2022-07-14 12:44:52 UTC; 6s ago
       Docs: man:tinyproxy(8)
             man:tinyproxy.conf(5)
    Process: 2523 ExecStart=/usr/bin/tinyproxy $FLAGS (code=exited, status=0/SU>
   Main PID: 2525 (tinyproxy)
      Tasks: 1 (limit: 956)
     Memory: 1.1M
        CPU: 6ms
     CGroup: /system.slice/tinyproxy.service
             └─2525 /usr/bin/tinyproxy

Jul 14 12:44:52 t2202 systemd[1]: Starting Tinyproxy lightweight HTTP Proxy...
Jul 14 12:44:52 t2202 systemd[1]: tinyproxy.service: Can't open PID file /run/tinyproxy/tinyproxy.pid (yet?) after start: Operation not permitted
Jul 14 12:44:52 t2202 systemd[1]: Started Tinyproxy lightweight HTTP Proxy.

(I do not care about the message 'tinyproxy.service: Can't open PID file /run/tinyproxy/tinyproxy.pid' as long as the proxy works...)