Tonight I´m having this annoying problem with the feeder.
Apparently FR24 is running fine on my Orange Pi but it is not connected-
systemctl status fr24feed
* fr24feed.service - Flightradar24 Decoder & Feeder
Loaded: loaded (/etc/systemd/system/fr24feed.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2022-11-20 20:55:55 UTC; 1min 50s ago
Process: 8103 ExecStartPre=/usr/lib/fr24/install_dump1090.sh (code=exited, status=0/SUCCESS)
Process: 8107 ExecStartPre=/usr/lib/fr24/unregister_kernel_modules.sh (code=exited, status=0/SUCCESS)
Process: 8113 ExecStartPre=/usr/lib/fr24/create_missing_directories.sh (code=exited, status=0/SUCCESS)
Main PID: 8116 (fr24feed)
Tasks: 16 (limit: 2072)
Memory: 6.6M
CGroup: /system.slice/fr24feed.service
`-8116 /usr/bin/fr24feed
Time syncing look fine too:
systemctl status systemd-timesyncd.service
* systemd-timesyncd.service - Network Time Synchronization
Loaded: loaded (/lib/systemd/system/systemd-timesyncd.service; enabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/systemd-timesyncd.service.d
`-disable-with-time-daemon.conf
Active: active (running) since Sun 2022-11-20 20:32:17 UTC; 26min ago
Docs: man:systemd-timesyncd.service(8)
Main PID: 305 (systemd-timesyn)
Status: "Idle."
Tasks: 2 (limit: 2072)
Memory: 1.5M
CGroup: /system.slice/systemd-timesyncd.service
`-305 /lib/systemd/systemd-timesyncd
But when I give:
sudo fr24feed-status
[ ok ] FR24 Feeder/Decoder Process: running.
[ ok ] FR24 Stats Timestamp: 2022-11-20 20:58:48.
[FAIL] FR24 Link: unknown ... failed!
[ ok ] Receiver: connected (8224 MSGS/0 SYNC).
[FAIL] FR24 MLAT: not running ... failed!
Any suggestion ?
Ok, forget it!!
I found what the problem was.
It happens when you edit some configuration files at night on the balcony ....
Unfortunately I mispelled the symbolic link that the file: /etc/resolv.conf was pointing at.

Now I restarted the network and fr24feed looks happy (obviously)
Sorry for bothering you guys
Cheers