Ubuntu 22.04 防火墙启动问题：没有 python-nftables

Question

我尝试使用firewalld而不是，但即使通过ufw手动下载后，它仍然显示以下错误python-nftablessudo apt install

iptables没有被使用。

$ systemctl status iptables
Unit iptables.service could not be found.

FirewallBackendnftables当我检查时已经设置为/etc/firewalld/firewalld.conf。

• 错误信息1

  ERROR: 'python-nftables' failed: internal:0:0-0: Error: Could not process rule: No such file or directory
  

  JSON 斑点：

  {"nftables": [{"metainfo": {"json_schema_version": 1}}, {"add": {"chain": {"family": "inet", "table": "firewalld", "name": "mangle_PREROUTING", "type": "filter", "hook": "prerouting", "prio": -140}}}, {"add": >
  

• 错误信息2

  ERROR: COMMAND_FAILED: 'python-nftables' failed: internal:0:0-0: Error: Could not process rule: No such file or directory
  

  JSON 斑点：

  {"nftables": [{"metainfo": {"json_schema_version": 1}}, {"add": {"chain": {"family": "inet", "table": "firewalld", "name": "mangle_PREROUTING", "type": "filter", "hook": "prerouting", "prio": -140}}}, {"add": >
  

这可行，但我不确定我是否可以这样做。修改/etc/firewalld/firewalld.conf为IPv6_rpfilter=no作品。

任何想法？