CentOS开放端口

{"value":"\u672c\u6587\u6863\u4ee5CentOS7.6\u7248\u672c\u4e3a\u4f8b\uff0c\u5728\u673a\u5668\u5185\u6dfb\u52a0\u5e76\u5728\u9632\u706b\u5899\u5185\u5f00\u653e\u7aef\u53e3\u3002\n\u9700\u8981\u6ce8\u610f\u7684\u662f\uff1aliniux\u7cfb\u7edf\u7684\u7aef\u53e3\u53f7\u8303\u56f4\u4e3a0-65535\n\n\u672c\u6587\u6863\u4ee5\u5f00\u653e\u7aef\u53e3888\u4e3a\u4f8b\n\n### 1.\u67e5\u770b\u9632\u706b\u5899\u72b6\u6001\n**\u8f93\u5165systemctl status firewalld \u67e5\u770b\u9632\u706b\u5899\u72b6\u6001**\n> **systemctl status firewalld**\n>\n> \u25cf firewalld.service - firewalld - dynamic firewall daemon \n> Loaded: loaded (\/usr\/lib\/systemd\/system\/firewalld.service; enabled; vendor preset: enabled) \n> Active: active (running) since xxxxxxx CST; 2min 58s ago \/\/\u8fd9\u91cc\u4ee3\u8868\u9632\u706b\u5899\u662f\u542f\u7528\u7684\u5e76\u4e14\u5728\u8fd0\u884c\u4e2d \n> Docs: man:firewalld(1) \n> Main PID: 580 (firewalld) \n> CGroup: \/system.slice\/firewalld.service \n> \u2514\u2500580 \/usr\/bin\/python2 -Es \/usr\/sbin\/firewalld --nofork --nopid \n\n**\u9632\u706b\u5899\u7684\u5176\u4ed6\u547d\u4ee4\uff1a**\n\n\u542f\u52a8\u9632\u706b\u5899\uff1asystemctl start firewalld \n\u505c\u6b62\u9632\u706b\u5899\uff1asystemctl stop firewalld \n\u5f00\u673a\u542f\u7528\u9632\u706b\u5899\u670d\u52a1\uff1asystemctl enable firewalld \n\u5f00\u673a\u7981\u7528\u9632\u706b\u5899\u670d\u52a1\uff1asystemctl disable firewalld \n\u91cd\u542f\u9632\u706b\u5899\uff1afirewall-cmd -reload\n\n\n\n### 2.\u5f00\u653e\u7aef\u53e3\n**\u5f00\u653e\u7aef\u53e3\uff0c\u5982\u5f00\u653e\u7aef\u53e3888**\n\u8f93\u5165 firewall-cmd --permanent --zone=public --add-port=888\/tcp\n\n> **firewall-cmd --permanent --zone=public --add-port=888\/tcp ** \n>\n> **success**\n\nsuccess\u8868\u793a\u6210\u529f\u5f00\u653etcp\u7aef\u53e3888 \n\n\u8865\u5145\uff1a\u79fb\u9664\u5df2\u7ecf\u5f00\u653e\u7684\u7aef\u53e3\u547d\u4ee4 \uff1a firewall-cmd --permanent --zone=public --remove-port=888\/tcp\n\n\n\n### 3.\u67e5\u770b\u7aef\u53e3\u53f7\u662f\u5426\u5f00\u542f\n\n\u65b9\u6cd5\u4e00\uff1a\u8f93\u5165firewall-cmd --zone=public --query-port=888\/tcp\n\n> **firewall-cmd --zone=public --query-port=888\/tcp **\n>\n> **yes**\n\n\u663e\u793ayes\u4ee3\u8868\u5df2\u7ecf\u5f00\u542f\n\n\n\n\u65b9\u6cd5\u4e8c\uff1a\u67e5\u770b\u7aef\u53e3\u5f00\u542f\u5217\u8868\uff1a firewall-cmd --list-port\n\n> **firewall-cmd --list-port ** \n>\n> ** 888\/tcp**\n\n\u5b58\u5728888\/tcp\u4ee3\u8868\u7aef\u53e3888\u5df2\u7ecf\u5f00\u542f \n\n\n\n\u65b9\u6cd5\u4e09\uff1a\u67e5\u770b\u9632\u706b\u5899\u914d\u7f6e\u6587\u4ef6\uff1a cat \/etc\/firewalld\/zones\/public.xml\n\n> **cat \/etc\/firewalld\/zones\/public.xml**\n\n><?xml version=\"1.0\" encoding=\"utf-8\"?> \n><zone> \n><short>Public<\/short> \n><description>For use in public areas. You do not trust the other computers on networks to not harm your computer. Only selected incoming connections are accepted.<\/description> \n><service name=\"ssh\"\/> \n><service name=\"dhcpv6-client\"\/> \n><port protocol=\"tcp\" port=\"888\"\/> \/\/\u8fd9\u91cc\u663e\u793a\u7aef\u53e3888\/tcp\u5df2\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\n><\/zone> \n\n\n\n### \u6ce8\u610f\u4e8b\u9879\n\n**1.\u5f00\u542f\u7684\u7aef\u53e3telnet\u4e0d\u901a**\n\u5f00\u542f\u4e00\u4e2a\u6307\u5b9a\u7684\u7aef\u53e3\u540e\uff0c\u60f3telnet\u9a8c\u8bc1\u65f6\u5374\u53d1\u73b0\u4e0d\u901a\uff0c \u4f46\u662f\u9632\u706b\u5899\u5df2\u7ecf\u5f00\u542f\u4e86\uff0c\u800c\u4e14\u5728\u4f7f\u7528netstat -lnpt\u547d\u4ee4\u67e5\u770b\u76d1\u542c\u72b6\u6001\u4e2d\u5e76\u6ca1\u6709\u8fd9\u4e2a\u7aef\u53e3\u3002\u539f\u56e0\u662f\u56e0\u4e3a\u6ca1\u6709\u7406\u89e3\u7aef\u53e3\u548c\u8fdb\u7a0b\u7684\u5173\u7cfb\u3002\n\u7aef\u53e3\u7684\u76d1\u542c\u662f\u4e3b\u673a\u5e94\u7528\u7a0b\u5e8f\u670d\u52a1\u7684\u4e8b\u60c5\u3002\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u5f00\u4e86\u4e00\u4e2a\u7aef\u53e3\uff0c\u8fd8\u9700\u8981\u67d0\u4e2a\u8fdb\u7a0b\u6216\u5e94\u7528\u7a0b\u5e8f\u6765\u4e3b\u52a8\u6253\u5f00\u8fd9\u4e2a\u7aef\u53e3\u3002\u5047\u5982\u6211\u73b0\u5728\u6253\u5f00\u4e86\u4e00\u4e2a9999\u7aef\u53e3\uff0c\u90a3\u4e48\u6211\u9700\u8981\u4e00\u4e2a\u7a0b\u5e8f\u6216\u8005\u8fdb\u7a0b\u6765\u542f\u7528\u5b83\uff0c\u4e5f\u5c31\u662f\u8bf4\u5728\u8fd9\u4e2a\u7a0b\u5e8f\u6216\u8fdb\u7a0b\u7684\u8f6f\u4ef6\u5185\u90e8\u6765\u542f\u75289999\u8fd9\u4e2a\u7aef\u53e3\uff0c\u5982\u679c\u8fd9\u4e2a\u7a0b\u5e8f\u6216\u8fdb\u7a0b\u5185\u90e8\u89c4\u5b9a\u7684\u662f8080\u8fd9\u4e2a\u7aef\u53e3\uff0c\u4f46\u7cfb\u7edf\u4e2d8080\u8fd9\u4e2a\u7aef\u53e3\u5e76\u6ca1\u6709\u5f00\u542f\uff0c\u8fd9\u65f6\u6211\u4eec\u9700\u8981\u5f00\u542f8080\u8fd9\u4e2a\u7279\u5b9a\u7aef\u53e3\u3002"}