$\"\"$ <\/div>\n

\u56fe8-6\u00a0 \u6ca1\u6709\u4f7f\u7528SNAT\u6280\u672f\u7684\u7f51\u7edc<\/p>\n

$\"\"$ <\/div>\n

\u56fe8-7\u00a0 \u4f7f\u7528SNAT\u6280\u672f\u5904\u7406\u8fc7\u7684\u7f51\u7edc<\/p>\n

\u4f7f\u7528iptables\u547d\u4ee4\u5b9e\u73b0SNAT\u6280\u672f\u662f\u4e00\u4ef6\u5f88\u9ebb\u70e6\u7684\u4e8b\u60c5\uff0c\u4f46\u662f\u5728firewall-config\u4e2d\u5374\u662f\u5c0f\u83dc\u4e00\u789f\u4e86\u3002\u7528\u6237\u53ea\u9700\u6309\u7167\u56fe8-8\u8fdb\u884c\u914d\u7f6e\uff0c\u5e76\u9009\u4e2dMasquerade zone\u590d\u9009\u6846\uff0c\u5c31\u81ea\u52a8\u5f00\u542f\u4e86SNAT\u6280\u672f\u3002<\/p>\n<\/div>\n

$\"\u5f00\u542f\u4f2a\u88c5\u529f\u80fd\"$ <\/div>\n

\u56fe8-8\u00a0 \u5f00\u542f\u9632\u706b\u5899\u7684SNAT\u6280\u672f<\/p>\n

\u4e3a\u4e86\u8ba9\u5927\u5bb6\u76f4\u89c2\u67e5\u770b\u4e0d\u540c\u5de5\u5177\u5728\u5b9e\u73b0\u76f8\u540c\u529f\u80fd\u7684\u533a\u522b\uff0c\u8fd9\u91cc\u4f7f\u7528firewall-config\u5de5\u5177\u91cd\u65b0\u6f14\u793a\u4e86\u524d\u9762\u4f7f\u7528firewall-cmd\u6765\u914d\u7f6e\u9632\u706b\u5899\u7b56\u7565\u89c4\u5219\uff0c\u5c06\u672c\u673a888\u7aef\u53e3\u7684\u6d41\u91cf\u8f6c\u53d1\u523022\u7aef\u53e3\uff0c\u4e14\u8981\u6c42\u5f53\u524d\u548c\u957f\u671f\u5747\u6709\u6548\uff0c\u5177\u4f53\u5982\u56fe8-9\u548c\u56fe8-10\u6240\u793a\u3002<\/p>\n

$\"\u5c06\u5411\u672c\u673a888\u7aef\u53e3\u7684\u8bf7\u6c42\u8f6c\u53d1\u81f3\u672c\u673a\u768422\u7aef\u53e3\"$ <\/p>\n

\u56fe8-9\u00a0 \u914d\u7f6e\u672c\u5730\u7684\u7aef\u53e3\u8f6c\u53d1<\/p>\n

$\"\"$ <\/p>\n

\u56fe8-10\u00a0 \u8ba9\u9632\u706b\u5899\u6548\u7b56\u7565\u89c4\u5219\u7acb\u5373\u751f\u6548<\/p>\n

\u914d\u7f6e\u5bcc\u89c4\u5219\uff0c\u8ba9192.168.10.20\u4e3b\u673a\u8bbf\u95ee\u5230\u672c\u673a\u76841234\u7aef\u53e3\u53f7\uff0c\u5982\u56fe8-11\u6240\u793a\u3002<\/p>\n

$\"\u4ec5\u5141\u8bb8192.168.10.20\u4e3b\u673a\u8bbf\u95ee\u672c\u673a\u76841234\u7aef\u53e3\"$ <\/div>\n

\u56fe8-11 \u914d\u7f6e\u9632\u706b\u5899\u5bcc\u89c4\u5219\u7b56\u7565<\/p>\n

\u5982\u679c\u751f\u4ea7\u73af\u5883\u4e2d\u7684\u670d\u52a1\u5668\u6709\u591a\u5757\u7f51\u5361\u5728\u540c\u65f6\u63d0\u4f9b\u670d\u52a1\uff08\u8fd9\u79cd\u60c5\u51b5\u5f88\u5e38\u89c1\uff09\uff0c\u5219\u5bf9\u5185\u7f51\u548c\u5bf9\u5916\u7f51\u63d0\u4f9b\u670d\u52a1\u7684\u7f51\u5361\u8981\u9009\u62e9\u7684\u9632\u706b\u5899\u7b56\u7565\u533a\u57df\u4e5f\u662f\u4e0d\u4e00\u6837\u7684\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u53ef\u4ee5\u628a\u7f51\u5361\u4e0e\u9632\u706b\u5899\u7b56\u7565\u533a\u57df\u8fdb\u884c\u7ed1\u5b9a\uff08\u89c1\u56fe8-12\uff09\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u9632\u706b\u5899\u533a\u57df\u7b56\u7565\uff0c\u5bf9\u6e90\u81ea\u4e0d\u540c\u7f51\u5361\u7684\u6d41\u91cf\u8fdb\u884c\u9488\u5bf9\u6027\u7684\u76d1\u63a7\uff0c\u6548\u679c\u4f1a\u66f4\u597d\u3002<\/p>\n

\u6700\u540e\uff0c\u5218\u9044\u8001\u5e08\u60f3\u8bf4\u7684\u662f\uff0cfirewall-config\u5de5\u5177\u771f\u7684\u975e\u5e38\u5b9e\u7528\uff0c\u5f88\u591a\u539f\u672c\u590d\u6742\u7684\u957f\u547d\u4ee4\u88ab\u7528\u56fe\u5f62\u5316\u6309\u94ae\u66ff\u4ee3\uff0c\u8bbe\u7f6e\u89c4\u5219\u4e5f\u7b80\u5355\u660e\u4e86\uff0c\u8db3\u4ee5\u5e94\u5bf9\u65e5\u5e38\u5de5\u4f5c\u3002\u6240\u4ee5\u518d\u6b21\u5411\u5927\u5bb6\u5f3a\u8c03\u914d\u7f6e\u9632\u706b\u5899\u7b56\u7565\u7684\u539f\u5219\u2014\u53ea\u8981\u80fd\u5b9e\u73b0\u6240\u9700\u7684\u529f\u80fd\uff0c\u7528\u4ec0\u4e48\u5de5\u5177\u8bf7\u968f\u541b\u4fbf\u3002<\/p>\n

$\"\u67e5\u770b\u7f51\u5361\u8bbe\u5907\u4fe1\u606f\"$ <\/div>\n

\u56fe8-12\u00a0 \u628a\u7f51\u5361\u4e0e\u9632\u706b\u5899\u7b56\u7565\u533a\u57df\u8fdb\u884c\u7ed1\u5b9a<\/p>\n<\/div>\n

8.4 \u670d\u52a1\u7684\u8bbf\u95ee\u63a7\u5236\u5217\u8868<\/strong><\/span><\/h5>\n
TCP Wrappers\u662fRHEL 7\u7cfb\u7edf\u4e2d\u9ed8\u8ba4\u542f\u7528\u7684\u4e00\u6b3e\u6d41\u91cf\u76d1\u63a7\u7a0b\u5e8f\uff0c\u5b83\u80fd\u591f\u6839\u636e\u6765\u8bbf\u4e3b\u673a\u7684\u5730\u5740\u4e0e\u672c\u673a\u7684\u76ee\u6807\u670d\u52a1\u7a0b\u5e8f\u4f5c\u51fa\u5141\u8bb8\u6216\u62d2\u7edd\u7684\u64cd\u4f5c\u3002\u6362\u53e5\u8bdd\u8bf4\uff0cLinux\u7cfb\u7edf\u4e2d\u5176\u5b9e\u6709\u4e24\u4e2a\u5c42\u9762\u7684\u9632\u706b\u5899\uff0c\u7b2c\u4e00\u79cd\u662f\u524d\u9762\u8bb2\u5230\u7684\u57fa\u4e8eTCP\/IP\u534f\u8bae\u7684\u6d41\u91cf\u8fc7\u6ee4\u5de5\u5177\uff0c\u800cTCP Wrappers\u670d\u52a1\u5219\u662f\u80fd\u5141\u8bb8\u6216\u7981\u6b62Linux\u7cfb\u7edf\u63d0\u4f9b\u670d\u52a1\u7684\u9632\u706b\u5899\uff0c\u4ece\u800c\u5728\u66f4\u9ad8\u5c42\u9762\u4fdd\u62a4\u4e86Linux\u7cfb\u7edf\u7684\u5b89\u5168\u8fd0\u884c\u3002<\/p>\n
TCP Wrappers\u670d\u52a1\u7684\u9632\u706b\u5899\u7b56\u7565\u7531\u4e24\u4e2a\u63a7\u5236\u5217\u8868\u6587\u4ef6\u6240\u63a7\u5236\uff0c\u7528\u6237\u53ef\u4ee5\u7f16\u8f91\u5141\u8bb8\u63a7\u5236\u5217\u8868\u6587\u4ef6\u6765\u653e\u884c\u5bf9\u670d\u52a1\u7684\u8bf7\u6c42\u6d41\u91cf\uff0c\u4e5f\u53ef\u4ee5\u7f16\u8f91\u62d2\u7edd\u63a7\u5236\u5217\u8868\u6587\u4ef6\u6765\u963b\u6b62\u5bf9\u670d\u52a1\u7684\u8bf7\u6c42\u6d41\u91cf\u3002\u63a7\u5236\u5217\u8868\u6587\u4ef6\u4fee\u6539\u540e\u4f1a\u7acb\u5373\u751f\u6548\uff0c\u7cfb\u7edf\u5c06\u4f1a\u5148\u68c0\u67e5\u5141\u8bb8\u63a7\u5236\u5217\u8868\u6587\u4ef6\uff08\/etc\/hosts.allow\uff09\uff0c\u5982\u679c\u5339\u914d\u5230\u76f8\u5e94\u7684\u5141\u8bb8\u7b56\u7565\u5219\u653e\u884c\u6d41\u91cf\uff1b\u5982\u679c\u6ca1\u6709\u5339\u914d\uff0c\u5219\u53bb\u8fdb\u4e00\u6b65\u5339\u914d\u62d2\u7edd\u63a7\u5236\u5217\u8868\u6587\u4ef6\uff08\/etc\/hosts.deny\uff09\uff0c\u82e5\u627e\u5230\u5339\u914d\u9879\u5219\u62d2\u7edd\u8be5\u6d41\u91cf\u3002\u5982\u679c\u8fd9\u4e24\u4e2a\u6587\u4ef6\u5168\u90fd\u6ca1\u6709\u5339\u914d\u5230\uff0c\u5219\u9ed8\u8ba4\u653e\u884c\u6d41\u91cf\u3002<\/p>\n
TCP Wrappers\u670d\u52a1\u7684\u63a7\u5236\u5217\u8868\u6587\u4ef6\u914d\u7f6e\u8d77\u6765\u5e76\u4e0d\u590d\u6742\uff0c\u5e38\u7528\u7684\u53c2\u6570\u5982\u88688-4\u6240\u793a\u3002<\/p>\n
\u88688-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 TCP Wrappers\u670d\u52a1\u7684\u63a7\u5236\u5217\u8868\u6587\u4ef6\u4e2d\u5e38\u7528\u7684\u53c2\u6570<\/p>\n\n\n\n\n\n\n\n\n\n
\u5ba2\u6237\u7aef\u7c7b\u578b<\/td>\n \u793a\u4f8b<\/td>\n \u6ee1\u8db3\u793a\u4f8b\u7684\u5ba2\u6237\u7aef\u5217\u8868<\/td>\n<\/tr>\n
\u5355\u4e00\u4e3b\u673a<\/td>\n 192.168.10.10<\/td>\n IP\u5730\u5740\u4e3a192.168.10.10\u7684\u4e3b\u673a<\/td>\n<\/tr>\n
\u6307\u5b9a\u7f51\u6bb5<\/td>\n 192.168.10.<\/td>\n IP\u6bb5\u4e3a192.168.10.0\/24\u7684\u4e3b\u673a<\/td>\n<\/tr>\n
\u6307\u5b9a\u7f51\u6bb5<\/td>\n 192.168.10.0\/255.255.255.0<\/td>\n IP\u6bb5\u4e3a192.168.10.0\/24\u7684\u4e3b\u673a<\/td>\n<\/tr>\n
\u6307\u5b9aDNS\u540e\u7f00<\/td>\n .lrxjmw.cn<\/td>\n \u6240\u6709DNS\u540e\u7f00\u4e3a.lrxjmw.cn\u7684\u4e3b\u673a<\/td>\n<\/tr>\n
\u6307\u5b9a\u4e3b\u673a\u540d\u79f0<\/td>\n lrxjmw.cn<\/td>\n \u4e3b\u673a\u540d\u79f0\u4e3alrxjmw.cn\u7684\u4e3b\u673a<\/td>\n<\/tr>\n
\u6307\u5b9a\u6240\u6709\u5ba2\u6237\u7aef<\/td>\n ALL<\/td>\n \u6240\u6709\u4e3b\u673a\u5168\u90e8\u5305\u62ec\u5728\u5185<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/p>\n
\u5728\u914d\u7f6eTCP Wrappers\u670d\u52a1\u65f6\u9700\u8981\u9075\u5faa\u4e24\u4e2a\u539f\u5219\uff1a<\/p>\n
\n
\u7f16\u5199\u62d2\u7edd\u7b56\u7565\u89c4\u5219\u65f6\uff0c\u586b\u5199\u7684\u662f\u670d\u52a1\u540d\u79f0\uff0c\u800c\u975e\u534f\u8bae\u540d\u79f0\uff1b<\/li>\n
\u5efa\u8bae\u5148\u7f16\u5199\u62d2\u7edd\u7b56\u7565\u89c4\u5219\uff0c\u518d\u7f16\u5199\u5141\u8bb8\u7b56\u7565\u89c4\u5219\uff0c\u4ee5\u4fbf\u76f4\u89c2\u5730\u770b\u5230\u76f8\u5e94\u7684\u6548\u679c\u3002<\/li>\n<\/ol>\n
\u4e0b\u9762\u7f16\u5199\u62d2\u7edd\u7b56\u7565\u89c4\u5219\u6587\u4ef6\uff0c\u7981\u6b62\u8bbf\u95ee\u672c\u673asshd\u670d\u52a1\u7684\u6240\u6709\u6d41\u91cf\uff08\u65e0\u987b\/etc\/hosts.deny\u6587\u4ef6\u4e2d\u4fee\u6539\u539f\u6709\u7684\u6ce8\u91ca\u4fe1\u606f\uff09\uff1a<\/p>\n
[root@linuxprobe ~]# vim \/etc\/hosts.deny\r\n#\r\n# hosts.deny This file contains access rules which are used to\r\n# deny connections to network services that either use\r\n# the tcp_wrappers library or that have been\r\n# started through a tcp_wrappers-enabled xinetd.\r\n#\r\n# The rules in this file can also be set up in\r\n# \/etc\/hosts.allow with a 'deny' option instead.\r\n#\r\n# See 'man 5 hosts_options' and 'man 5 hosts_access'\r\n# for information on rule syntax.\r\n# See 'man tcpd' for information on tcp_wrappers\r\nsshd:*\r\n<\/strong>[root@linuxprobe ~]# ssh 192.168.10.10\r\nssh_exchange_identification: read: Connection reset by peer\r\n<\/pre>\n
\u63a5\u4e0b\u6765\uff0c\u5728\u5141\u8bb8\u7b56\u7565\u89c4\u5219\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4e00\u6761\u89c4\u5219\uff0c\u4f7f\u5176\u653e\u884c\u6e90\u81ea192.168.10.0\/24\u7f51\u6bb5\uff0c\u8bbf\u95ee\u672c\u673asshd\u670d\u52a1\u7684\u6240\u6709\u6d41\u91cf\u3002\u53ef\u4ee5\u770b\u5230\uff0c\u670d\u52a1\u5668\u7acb\u523b\u5c31\u653e\u884c\u4e86\u8bbf\u95eesshd\u670d\u52a1\u7684\u6d41\u91cf\uff0c\u6548\u679c\u975e\u5e38\u76f4\u89c2\uff1a<\/p>\n
[root@linuxprobe ~]# vim \/etc\/hosts.allow\r\n#\r\n# hosts.allow This file contains access rules which are used to\r\n# allow or deny connections to network services that\r\n# either use the tcp_wrappers library or that have been\r\n# started through a tcp_wrappers-enabled xinetd.\r\n#\r\n# See 'man 5 hosts_options' and 'man 5 hosts_access'\r\n# for information on rule syntax.\r\n# See 'man tcpd' for information on tcp_wrappers\r\nsshd:192.168.10.\r\n\r\n<\/strong>[root@linuxprobe ~]# ssh 192.168.10.10\r\nThe authenticity of host '192.168.10.10 (192.168.10.10)' can't be established.\r\nECDSA key fingerprint is 70:3b:5d:37:96:7b:2e:a5:28:0d:7e:dc:47:6a:fe:5c.\r\nAre you sure you want to continue connecting (yes\/no)? yes\r\nWarning: Permanently added '192.168.10.10' (ECDSA) to the list of known hosts.\r\nroot@192.168.10.10's password: \r\nLast login: Wed May 4 07:56:29 2017\r\n[root@linuxprobe\u00a0~]# \r\n<\/pre>\n
\u51fa\u73b0\u95ee\u9898?\u5927\u80c6\u63d0\u95ee!<\/strong><\/span><\/p>\n
\u56e0\u8bfb\u8005\u4eec\u786c\u4ef6\u4e0d\u540c\u6216\u64cd\u4f5c\u9519\u8bef\u90fd\u53ef\u80fd\u5bfc\u81f4\u5b9e\u9a8c\u914d\u7f6e\u51fa\u9519\uff0c\u8bf7\u8010\u5fc3\u518d\u4ed4\u7ec6\u770b\u770b\u64cd\u4f5c\u6b65\u9aa4\u5427\uff0c\u4e0d\u8981\u6c14\u9981~<\/p>\n
Linux\u6280\u672f\u4ea4\u6d41\u8bf7\u52a0A\u7fa4\uff1a560843(\u6ee1<\/span><\/strong>)\uff0cB\u7fa4\uff1a340829(\u63a8\u8350<\/span><\/strong>)\uff0cC\u7fa4\uff1a463590\uff08\u63a8\u8350<\/span><\/strong>\uff09\uff0c\u70b9\u6b64\u67e5\u770b\u5168\u56fd\u7fa4<\/a>\u3002<\/p>\n
*\u672c\u7fa4\u7279\u8272\uff1a\u901a\u8fc7\u53e3\u4ee4\u9a8c\u8bc1\u786e\u4fdd\u6bcf\u4e00\u4e2a\u7fa4\u5458\u90fd\u662f\u300aLinux\u5c31\u8be5\u8fd9\u4e48\u5b66\u300b\u7684\u8bfb\u8005\uff0c\u7b54\u7591\u66f4\u6709\u9488\u5bf9\u6027\uff0c\u4e0d\u5b9a\u671f\u514d\u8d39\u9886\u53d6\u5b9a\u5236\u793c\u54c1\u3002<\/p><\/blockquote>\n
\u672c\u7ae0\u8282\u7684\u590d\u4e60\u4f5c\u4e1a<\/span>(\u7b54\u6848\u5c31\u5728\u95ee\u9898\u7684\u4e0b\u4e00\u884c\u54e6\uff0c\u7528\u9f20\u6807\u9009\u4e2d\u5373\u53ef\u770b\u5230\u7684~)<\/strong><\/span><\/div>\n<\/div>\n
<\/p>\n
1\uff0e\u5728RHEL 7\u7cfb\u7edf\u4e2d\uff0ciptables\u662f\u5426\u5df2\u7ecf\u88abfirewalld\u670d\u52a1\u5f7b\u5e95\u53d6\u4ee3\uff1f<\/p>\n
\u7b54\uff1a<\/strong>\u6ca1\u6709\uff0ciptables\u548cfirewalld\u670d\u52a1\u5747\u53ef\u7528\u4e8eRHEL 7\u7cfb\u7edf\u3002<\/span><\/p>\n
2\uff0e\u8bf7\u7b80\u8ff0\u9632\u706b\u5899\u7b56\u7565\u89c4\u5219\u4e2dDROP\u548cREJECT\u7684\u4e0d\u540c\u4e4b\u5904\u3002<\/p>\n
\u7b54\uff1a<\/strong>DROP\u7684\u52a8\u4f5c\u662f\u4e22\u5305\uff0c\u4e0d\u54cd\u5e94\uff1bREJECT\u662f\u62d2\u7edd\u8bf7\u6c42\uff0c\u540c\u65f6\u5411\u53d1\u9001\u65b9\u56de\u9001\u62d2\u7edd\u4fe1\u606f\u3002<\/span><\/p>\n
3\uff0e\u5982\u4f55\u628aiptables\u670d\u52a1\u7684INPUT\u89c4\u5219\u94fe\u9ed8\u8ba4\u7b56\u7565\u8bbe\u7f6e\u4e3aDROP\uff1f<\/p>\n
\u7b54\uff1a<\/strong>\u6267\u884c\u547d\u4ee4iptables -P INPUT DROP\u5373\u53ef\u3002<\/span><\/p>\n
4\uff0e\u600e\u6837\u7f16\u5199\u4e00\u6761\u9632\u706b\u5899\u7b56\u7565\u89c4\u5219\uff0c\u4f7f\u5f97iptables\u670d\u52a1\u53ef\u4ee5\u7981\u6b62\u6e90\u81ea192.168.10.0\/24\u7f51\u6bb5\u7684\u6d41\u91cf\u8bbf\u95ee\u672c\u673a\u7684sshd\u670d\u52a1\uff0822\u7aef\u53e3\uff09\uff1f<\/p>\n
\u7b54\uff1a<\/strong>\u6267\u884c\u547d\u4ee4iptables -I INPUT -s 192.168.10.0\/24 -p tcp --dport 22 -j REJECT\u5373\u53ef\u3002<\/span><\/p>\n
5\uff0e\u8bf7\u7b80\u8ff0firewalld\u4e2d\u533a\u57df\u7684\u4f5c\u7528\u3002<\/p>\n
\u7b54\uff1a<\/strong>\u53ef\u4ee5\u4f9d\u636e\u4e0d\u540c\u7684\u5de5\u4f5c\u573a\u666f\u6765\u8c03\u7528\u4e0d\u540c\u7684firewalld\u533a\u57df\uff0c\u5b9e\u73b0\u5927\u91cf\u9632\u706b\u5899\u7b56\u7565\u89c4\u5219\u7684\u5feb\u901f\u5207\u6362\u3002<\/span><\/p>\n
6\uff0e\u5982\u4f55\u5728firewalld\u4e2d\u628a\u9ed8\u8ba4\u7684\u533a\u57df\u8bbe\u7f6e\u4e3admz\uff1f<\/p>\n
\u7b54\uff1a<\/strong>\u6267\u884c\u547d\u4ee4firewall-cmd --set-default-zone=dmz\u5373\u53ef\u3002<\/span><\/p>\n
7\uff0e\u5982\u4f55\u8ba9firewalld\u4e2d\u4ee5\u6c38\u4e45\uff08Permanent\uff09\u6a21\u5f0f\u914d\u7f6e\u7684\u9632\u706b\u5899\u7b56\u7565\u89c4\u5219\u7acb\u5373\u751f\u6548\uff1f<\/p>\n
\u7b54\uff1a<\/strong>\u6267\u884c\u547d\u4ee4firewall-cmd --reload\u3002<\/span><\/p>\n
8\uff0e\u4f7f\u7528SNAT\u6280\u672f\u7684\u76ee\u7684\u662f\u4ec0\u4e48\uff1f<\/p>\n
\u7b54\uff1a<\/strong>SNAT\u662f\u4e00\u79cd\u4e3a\u4e86\u89e3\u51b3IP\u5730\u5740\u532e\u4e4f\u800c\u8bbe\u8ba1\u7684\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u4f7f\u5f97\u591a\u4e2a\u5185\u7f51\u4e2d\u7684\u7528\u6237\u901a\u8fc7\u540c\u4e00\u4e2a\u5916\u7f51IP\u63a5\u5165Internet\uff08\u4e92\u8054\u7f51\uff09\u3002<\/span><\/p>\n
9\uff0e\u00a0TCP Wrappers\u670d\u52a1\u5206\u522b\u6709\u5141\u8bb8\u7b56\u7565\u914d\u7f6e\u6587\u4ef6\u548c\u62d2\u7edd\u7b56\u7565\u914d\u7f6e\u6587\u4ef6\uff0c\u8bf7\u95ee\u5339\u914d\u987a\u5e8f\u662f\u600e\u4e48\u6837\u7684\uff1f<\/p>\n
\u7b54\uff1a<\/strong>TCP Wrappers\u4f1a\u5148\u4f9d\u6b21\u5339\u914d\u5141\u8bb8\u7b56\u7565\u914d\u7f6e\u6587\u4ef6\uff0c\u7136\u540e\u518d\u4f9d\u6b21\u5339\u914d\u62d2\u7edd\u7b56\u7565\u914d\u7f6e\u6587\u4ef6\uff0c\u5982\u679c\u90fd\u6ca1\u6709\u5339\u914d\u5230\uff0c\u5219\u9ed8\u8ba4\u653e\u884c\u6d41\u91cf\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
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