firewall in ubuntu
ubuntu server 에서 방화벽 관리하는 방법 방화벽 추가 sudo ufw allow 22/tcp sudo ufw allow 80/tcp 방화벽 삭제 sudo ufw delete <rule type> from <ip address> to any port <port number> --> sudo ufw delete deny from 121.121.121.121
Topic
방화벽
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