首页 / 操作系统 / Linux / Ubuntu server 8.04 防火墙使用指南 （英文）
Create a tool for host-based iptables firewall configuration. This tool should provide an easy to use interface to the user, as well as support package integration and dynamic-detection of open ports. Install UFW in Ubuntu Currently this firewall package is available in Ubuntu 8.04 sudo apt-get install ufw This will complete the installation Turn firewall on and off （’disable’ is default ACCEPT） # ufw enable|disable Toggle logging # ufw logging on|off Set the default policy （ie “mostly open” vs “mostly closed”） # ufw default allow|deny Accept or drop incoming packets to （can see what services are available with ’status’ （see below））. can be specified via service name in /etc/services, ‘protocol:port’, or via package meta-data. ‘allow’ adds service entry to /etc/ufw/maps and ‘deny’ removes service entry from /etc/ufw/maps. Basic syntax: # ufw allow|deny [service] Display status of firewall and ports in the listening state, referencing /var/lib/ufw/maps. Numbers in parenthesis are not displayed to user # ufw status
UFW Examples
Allow port 53 $ sudo ufw allow 53 Delete Allow port 53 $ sudo ufw delete allow 53 Allow port 80 $ sudo ufw allow 80/tcp Delete Allow port 80 $ sudo ufw delete allow 80/tcp Allow port smtp $ sudo ufw allow smtp Delete Allow port smtp $ sudo ufw delete allow smtp Allow fro Particular IP $ sudo ufw allow from 192.168.254.254 Delete the above rule $ sudo ufw delete allow from 192.168.254.254下周计算机病毒预报Linux系统未受影响[注意]线上游戏窃取者变种病毒偷取网络游戏密码相关资讯 Ubuntu Ubuntu防火墙 Ubuntu Server 8.04
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