I did, and ended up, locked out. I talked to Burrakucat about that. I have no problem in that I don’t lose anything, as all my sources are backed up on my iPad but having to reinstate everything by hand is a pain after I wreck the machine and have to wipe it. I need to get some system sorted out for backing up the core configuration stuff. But that is a nightmare.
Another question I wanted to ask about software firewalling. I am obviously not completely shielding the machine from loss of CPU cycles but I suppose the software firewall throws things away before it can have any further knock-on implications caused by processes that accept requests for communication on particular ports and go on to do something or other even if it is only to find out after a very short time that the communicant is illegitimate and thus rejecting it. Maybe the firewall provides a shortcut to rejection, in a guaranteed minimum time.
If you are not using firewalling as a form of ACL security measure, where the blocking of certain ports / protocols is used to prevent users running certain types of software successfully. But if you have no rogue users then is there any point to a software firewall?
I was also thinking about other security basics though. What else should I be thinking of?
Burrakucat has volunteered to nmap me.