Fit123 doesn't work though (seems to expect a RW filesystem):installs correctly, but switching any of the features on/off have no effect themes work fine error when selecting DDNS tab in Fit123: Warning: fopen(/usr/local/pkg/Fit123/ddns/ddns.php): failed to open stream: Read-only file system in /usr/local/pkg/fit123.inc on line 164
Further to this, it's clear that Fit123 isn't calling /etc/rc.conf_mount_r[w|o] when doing it's thing. I don't use DDNS (and perhaps the error is caused because DDNS is disabled?), and even so by calling /etc/rc.conf_mount_rw before visiting the Fit123 doesn't get rid of the DDNS tab error. However the Fit123 tab works fine - here's a workaround:
1: Open 2 tabs both visiting the pfsense box. This is important.
2: Install the Fit123 package as normal (System -> Packages)
3: Go to Diagnostics -> Command and run /etc/rc.conf_mount_rw and leave it
4: In the 2nd tab, go to Status -> Fit 123, select the settings as required and save
5: Check that it's applied the settings: System -> General should have 4 DNS server fields, Status -> System should have current time. If not, run /etc/rc.conf_mount_rw in one of the tabs again, and save Fit123 settings again (it took 2 goes for it's magic to work for me for some reason)
6: Once settings have been applied to your satisfaction, run /etc/rc.conf_mount_ro in Diagnostics -> Command
For some reason even with /etc/rc.conf_mount_rw run and the FS as writeable, the DDNS tab in Fit123 still says the fopen() warning, leading me to believe there are actually 2 bugs here:
1. That /etc/rc.conf_mount_r[w|o] needs to be called for it to be properly NanoBSD compatible
2. That the DDNS tab has a further bug, which may be due to the actual DDNS service (Services -> Dynamic DNS) being disabled on my pfSense.