I'm new using Ubuntu and ufw command to set firewall rules. I have an apache service running and I'm able to deny the access to the root path using apache2.conf. I have another backend app running on port 3000 which is not using apache so I can't deny access through apache ( and If I'm able to to that, I don't know how ).
I try then to configure the firewall to deny access ONLY to port 3000, but when I enable the firewall it seems that the fw denies all the traffic.
What is the best way to do that?
答案1
I haven't tested this, and am not familiar with ubuntu's ufw but it's a simple interface to iptables and I get the idea looking at ufw commands. And I see you want to change the rule for packets coming in, from a whitelist to a blacklist.
Try ufw default allow in
用于ufw status verbose检查您的更改是否正在进行。
更多规则请见此处 https://help.ubuntu.com/community/UFW 和http://manpages.ubuntu.com/manpages/lucid/man8/ufw.8.html
我想你可以说ufw deny 3000/tcp（尽管这条规则似乎没有指定方向）