Editing revision 10 of systemd

=Useful Debian systemd commands= ===Apache=== a2ensite (config file) a2dissite (config file) ... and then systemctl reload apache2 systemctl [start|stop] apache2 systemctl status systemctl status apache2 ===failed services=== See them with systemctl list-units --state=failed error messages with journalctl -u servicename.service systemctl edit apache2 # will edit the override file with nano systemctl restart postgrey 2022-02-21 it was reporting "notify-email@apache2.service" was down. clear it with systemctl reset-failed notify-email@apache2.service See the journal journalctl -u mariadb journalctl -u apache2 ==bind / dns== systemctl reload bind9 ==and iptables== To clear all iptables entries, first stop fail2ban, then clear, then restart fail2ban iptables --policy INPUT ACCEPT; iptables --policy OUTPUT ACCEPT; iptables --policy FORWARD ACCEPT; iptables -Z; # zero counters iptables -F; # flush (delete) rules iptables -X; # delete all extra chains

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This change is a minor edit.

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