Increase FW Logs
Is there any way to increase the log history that I get on Status: System logs: Firewall ?
300 entries is too little for what I need.
Use an external syslog server is the recommended way. There is a package to run a syslog server on the box.
How much more logging do you need?
If you just want to see a few more, you can increase that number in the Settings tab - I just tried 500 and it works.
And you can use the command line to see all that is in there: clog /var/log/system.log
And on 2.2 you can make the circular log size a bit bigger.
If it is just a bit more of the recent log you care about, then the above might be enough for you.
I would need logs of 1 to 2 days
Unless it's very low traffic you're going to need a syslog server of some sort then.