Linux - jak na raspberry nastavit firewalld

Ahoj, používám raspberry s linux raspbian a chtěl bych na něm provozovat firewalld místo iptables.

Firewalld mi neběží s chybou FATAL ERROR: No IPv4 and IPv6 firewall

root@mrx:~# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
Active: inactive (dead) since Sat 2017-12-30 12:31:23 UTC; 14s ago
Docs: man:firewalld(1)
Process: 8038 ExecStart=/usr/sbin/firewalld --nofork --nopid (code=exited, status=0/SUCCESS)
Main PID: 8038 (code=exited, status=0/SUCCESS)

Dec 25 12:31:20 mrx systemd[1]: Starting firewalld - dynamic firewall daemon...
Dec 25 12:31:22 mrx systemd[1]: Started firewalld - dynamic firewall daemon.
Dec 25 12:31:22 mrx firewalld[8038]: WARNING: ipset not usable, disabling ipset usage in firewall.
Dec 25 12:31:23 mrx firewalld[8038]: ERROR: Failed to read file "/proc/sys/net/netfilter/nf_conntrack_helper": [Errno 2] No such file or directory: '/proc/sys/
Dec 25 12:31:23 mrx firewalld[8038]: WARNING: Failed to get and parse nf_conntrack_helper setting
Dec 25 12:31:23 mrx firewalld[8038]: WARNING: iptables not usable, disabling IPv4 firewall.
Dec 25 12:31:23 mrx firewalld[8038]: WARNING: ip6tables not usable, disabling IPv6 firewall.
Dec 25 12:31:23 mrx firewalld[8038]: WARNING: ebtables not usable, disabling ethernet bridge firewall.
Dec 25 12:31:23 mrx firewalld[8038]: FATAL ERROR: No IPv4 and IPv6 firewall.
Dec 25 12:31:23 mrx firewalld[8038]: ERROR: Raising SystemExit in run_server
root@mrx:~# uptime
12:39:59 up 62 days, 22 min, 3 users, load average: 0.12, 0.07, 0.01

ODPOVĚĎ

Ahoj, tipuji, že máš updatovaný linux kernel, a když vidím uptime 62 dnů, tak celý problém s firewalld vyřešíš prostým rebootem....