root@server:~# ufw allow 83973/tcp
Rules updated
Rules updated (v6)
root@server:~# sudo ufw status verbose
Status: inactive
root@server:~# sudo ufw enable
Command may disrupt existing ssh connections. Proceed with operation (y|n)? y
Firewall is active and enabled on system startup
root@server:~# sudo ufw status verbose
Status: active
Logging: on (low)
Default: deny (incoming), allow (outgoing), disabled (routed)
New profiles: skip
To Action From
-- ------ ----
83973 ALLOW IN Anywhere
83973/tcp ALLOW IN Anywhere
83973 (v6) ALLOW IN Anywhere (v6)
83973/tcp (v6) ALLOW IN Anywhere (v6)
root@server:~#
Tôi đang cố gắng thêm cổng nghe 83973 nhưng nó không hoạt động. Xin tư vấn
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