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For me, this was a conflict with firewalld, and was resolved with sudo systemctl disable firewalld


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UFW firewall rules that you see in ufw commands are not the full set of rules that're actually implemented by UFW. Underneath the hood, iptables / netfilter is what UFW manipulates and there are quite a few things that're permitted by the default UFW rules so that your internet, etc behaves proper.. Unfortunately to fix those rules, you have to edit some ...


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Took a LOT of digging but I found my answers. From this page: https://serverfault.com/questions/421161/how-to-configure-vsftpd-to-work-with-passive-mode I added the lines shown to vsftpd.conf and recycled the daemon. Then, from this page: https://www.configserverfirewall.com/ubuntu-linux/vsftpd-passive-mod-ubuntu/ I added the range of ports I defined in ...


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