不幸的是，我不知道它何时停止工作，因为我将它用作火灾而忘记了解决方案。不久前，我检查了一下，gufw惊讶地发现我的机器是裸露的。
root@asus:/etc/ufw# dpkg -l | grep ufw
ii gufw 19.10.0-2
ii ufw 0.36-1
root@asus:/etc/ufw# dpkg -l | grep tables
ii iptables 1.8.4-11
ii iptables-dev:amd64 1.8.3-2
ii libnftables1:amd64 0.9.3-2
ii libnftnl11:amd64 1.1.5-1
ii libxtables-dev:amd64 1.8.4-1
ii libxtables12:amd64 1.8.4-1
ii nftables 0.9.3-2
我正在使用5.3.0-3-amd64内核运行。
实际错误：
root@asus:/# ufw enable
ERROR: problem running ufw-init
Bad argument `DROP'
Error occurred at line: 4
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
Bad argument `-'
Error occurred at line: 4
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
iptables-restore: line 2 failed
Bad argument `-'
Error occurred at line: 3
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
Bad argument `-'
Error occurred at line: 3
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
Bad argument `-'
Error occurred at line: 3
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
Bad argument `-'
Error occurred at line: 3
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
iptables-restore v1.8.4 (nf_tables): Chain 'ufw-user-input' does not exist
Error occurred at line: 2
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
Bad argument `DROP'
Error occurred at line: 4
Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more information.
Bad argument `-'
Error occurred at line: 4
Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more information.
ip6tables-restore: line 2 failed
Bad argument `-'
Error occurred at line: 3
Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more information.
Bad argument `-'
Error occurred at line: 3
Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more information.
Bad argument `-'
Error occurred at line: 3
Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more information.
Bad argument `-'
Error occurred at line: 3
Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more information.
ip6tables-restore v1.8.4 (nf_tables): Chain 'ufw6-user-input' does not exist
Error occurred at line: 2
Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more information.
Problem running '/etc/ufw/user.rules'
Problem running '/etc/ufw/user6.rules'
我还没有发现任何关于这个的明显命中（很多 ufw 问题，但不是这种类型）。我想知道这是否与内核的iptables支持有关，nftables包以某种方式进入已安装的包或其他东西的事实？如果我删除before*.rules或因此我after*.rules得到/etc/ufw一个错误，脚本会查找这些文件。
我想知道是否有人对ufw enable. 现在我ufw的是不活动的。
root@asus:/etc/ufw# lsmod | grep tables
ip6_tables 36864 0
ip_tables 32768 0
x_tables 49152 17 xt_conntrack,nft_compat,xt_LOG,xt_multiport,xt_tcpudp,xt_hashlimit,xt_addrtype,xt_recent,ip6t_rt,xt_comment,ip6_tables,ipt_REJECT,ip_tables,xt_limit,xt_hl,xt_MASQUERADE,ip6t_REJECT
nf_tables 163840 46 nft_compat,nft_counter,nft_chain_nat,nft_limit
nfnetlink 16384 4 nft_compat,nf_conntrack_netlink,nf_tables
