2

I want to open a range of TCP ports in nftables on my servers.

Normally, in netfilter/iptables I can write the rule like this

iptables -A INPUT -p tcp 1000:2000 -j ACCEPT

I tried to write in the same way in /etc/nftables.conf

tcp dport {1000:2000} accept

but nft reports

/etc/nftables.conf:24:15-24: Error: mapping outside of map context
     tcp dport {1000:2000} accept
               ^^^^^^^^^^
3

A simple dash without braces should do the trick:

tcp dport 1000-2000 accept

More examples of ranges and sets can be found in the official wiki wiki.nftables.org Intervals

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.