{"id":3078,"date":"2018-01-29T14:41:55","date_gmt":"2018-01-29T06:41:55","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=3078"},"modified":"2018-01-29T14:41:55","modified_gmt":"2018-01-29T06:41:55","slug":"centos%e4%b8%8betcxineted-conf%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/hemanual\/centos%e4%b8%8betcxineted-conf%e8%af%a6%e8%a7%a3\/","title":{"rendered":"CentOS\u4e0b\/etc\/xineted.conf\u8be6\u89e3"},"content":{"rendered":"
\u672c\u6587\u5185\u5bb9\u6765\u81ea\u300a\u9e1f\u54e5\u7684\u79c1\u623f\u83dc\u300b<\/div>\n
=========================<\/div>\n
\u5148\u4f86\u770b\u4e00\u770b\u9810\u8a2d\u7684 \/etc\/xinetd.conf \u9019\u500b\u6a94\u6848\u7684\u5167\u5bb9\u662f\u4ec0\u9ebc\u5427\uff01<\/p>\n\n\n\n
\n
[root@linux ~]# vi \/etc\/xinetd.conf<\/span>\r\n#\r\n# Simple configuration file for xinetd\r\n#\r\n# Some defaults, and include \/etc\/xinetd.d\/\r\ndefaults\r\n{\r\n  instances        = 60              <==\u540c\u4e00\u670d\u52d9\u7684\u540c\u6642\u9023\u7dda\u6578\u6700\u591a\u53ef\u9054 60 \u500b<\/span>\r\n  log_type         = SYSLOG authpriv <==\u767b\u9304\u5f8c\uff0c\u6703\u88ab\u7d00\u9304\u5230\u767b\u9304\u6a94\u7684\u8cc7\u8a0a<\/span>\r\n  log_on_success   = HOST PID        <==\u82e5\u6210\u529f\u7684\u767b\u5165\u6642\uff0c\u8a18\u9304\u7684\u8cc7\u8a0a\u6709\u54ea\u4e9b\uff1f<\/span>\r\n  log_on_failure   = HOST            <==\u82e5\u767b\u5165\u5931\u6557\uff0c\u5247\u8a18\u9304\u7684\u8cc7\u8a0a\u53c8\u662f\u5982\u4f55\uff1f<\/span>\r\n  cps              = 25 30           <==\u540c\u4e00\u79d2\u9418\u5167\u6700\u5927\u9023\u7dda\u6578\u91cf\u70ba 25 \u500b\uff0c\u82e5\u8d85\u904e 25 \u500b\uff0c\r\n                                 \u5247\u8a72\u670d\u52d9\u6703\u66ab\u6642\u505c\u6b62 30 \u79d2\uff01<\/span>\r\n}\r\n\r\nincludedir \/etc\/xinetd.d <==\u66f4\u591a\u7684\u8a2d\u5b9a\u503c\u5728 \/etc\/xinetd.d \u90a3\u500b\u76ee\u9304\u5167<\/span>\r\n<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u57fa\u672c\u4e0a\uff0c\u9019\u500b\u9810\u8a2d\u53c3\u6578\u6a94\u7684\u610f\u7fa9\u662f\uff1a\u300e\u7576\u67d0\u500b\u4f7f\u7528 super daemon \u7ba1\u7406\u7684\u670d\u52d9\u555f\u52d5\u6642\uff0c\u9664\u975e\u8a72\u670d\u52d9\u5df2\u7d93\u8a2d\u5b9a\u597d\u7ba1\u7406\u7684\u9805\u76ee\uff0c\u5426\u5247\u5c07\u4ee5\u4e0a\u8ff0 xinetd.conf \u5167\u7684\u9810\u8a2d\u53c3\u6578\u5e36\u5165\u3002<\/span>\u300f\u7684\u610f\u601d\uff0c\u4e5f\u5c31\u662f\u8aaa\uff0c\u9019\u50c5\u662f\u9810\u8a2d\u503c\uff0c \u4f46\u6211\u5011\u53ef\u4ee5\u81ea\u884c\u6307\u5b9a\u65b0\u7684\u8a2d\u5b9a\u503c\u4f86\u53d6\u4ee3 xinetd.conf \u5167\u7684\u9810\u8a2d\u503c\u5566\uff01 \u4e5f\u5c31\u662f\u8aaa\uff0c\u9019\u500b\u6a94\u6848\u8a2d\u5b9a\u6210\uff0c\u5728\u9810\u8a2d\u7684\u72c0\u614b\u4e0b\u300e\uff1a\u4e00\u500b\u670d\u52d9\u6700\u591a\u53ef\u9054 60 \u500b\u9023\u7dda\uff0c\u4e14\u540c\u4e00\u79d2\u5167\u9023\u63a5\u4e0a\u7684\u9023\u7dda\u4e0d\u53ef\u8d85\u904e 25 \u500b\u3002\u800c\u82e5\u767b\u5165\u7684\u6210\u529f\u8207\u5426\u6642\uff0c \u6703\u5206\u5225\u8a18\u9304\u4e0d\u540c\u7684\u8cc7\u8a0a\u5230\u767b\u9304\u6a94\u7576\u4e2d\u3002<\/span>\u300f\u9019\u6a23\u8aaa\uff0c\u53ef\u4ee5\u6bd4\u8f03\u6e05\u695a\u4e86\u5427\uff1f ^_^ \u81f3\u65bc\u66f4\u591a\u7684\u53c3\u6578\u8aaa\u660e\uff0c\u6211\u5011\u6703\u5728\u5e95\u4e0b\u518d\u5f37\u8abf\u7684\uff01<\/p>\n
\u65e2\u7136\u9019\u53ea\u662f\u500b\u9810\u8a2d\u53c3\u6578\u6a94\uff0c\u90a3\u9ebc\u81ea\u7136\u6709\u66f4\u591a\u7684\u670d\u52d9\u53c3\u6578\u6a94\u6848\u56c9\uff5e\u6c92\u932f\uff5e\u800c\u6240\u6709\u7684\u670d\u52d9\u53c3\u6578\u6a94\u90fd\u5728 \/etc\/xinetd.d \u88e1\u9762\uff0c\u9019\u662f\u56e0\u70ba\u4e0a\u8868\u7576\u4e2d\u7684\u6700\u5f8c\u4e00\u884c\u554a\uff01\u9019\u6a23\u77ad\u4e86\u5427\uff01 ^_^\u3002 \u90a3\u9ebc\u6bcf\u500b\u53c3\u6578\u6a94\u6848\u7684\u5167\u5bb9\u662f\u600e\u6a23\u5462\uff1f\u4e00\u822c\u4f86\u8aaa\uff0c\u4ed6\u662f\u9019\u6a23\u7684\uff1a<\/p>\n\n\n\n
\n
service  <service_name>\r\n{\r\n       <attribute>   <assign_op>   <value>   <value> ...\r\n       .............\r\n}\r\n<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u7b2c\u4e00\u884c\u4e00\u5b9a\u90fd\u6709\u500b service \uff0c\u81f3\u65bc\u90a3\u500b <service_name> \u88e1\u9762\u7684\u5167\u5bb9\uff0c \u5247\u8207 \/etc\/services \u6709\u95dc\uff0c\u56e0\u70ba\u4ed6\u53ef\u4ee5\u5c0d\u7167\u8457 \/etc\/services \u5167\u7684\u540d\u7a31\u8207 port number \u4f86\u6c7a\u5b9a\u6240\u8981\u555f\u7528\u7684 port \u662f\u90a3\u500b\u554a\uff01\u7136\u5f8c\u76f8\u95dc\u7684\u53c3\u6578\u5c31\u5728\u5169\u500b\u5927\u522e\u865f\u4e2d\u9593\u3002 attribute \u662f\u4e00\u4e9b xinetd \u7684\u7ba1\u7406\u53c3\u6578\uff0c assign_op \u5247\u662f\u53c3\u6578\u7684\u8a2d\u5b9a\u65b9\u6cd5\u3002 assign_op \u7684\u4e3b\u8981\u8a2d\u5b9a\u5f62\u5f0f\u70ba\uff1a<\/p>\n
    \n
      \u00a0= \uff1a \u8868\u793a\u5f8c\u9762\u7684\u8a2d\u5b9a\u53c3\u6578\u5c31\u662f\u9019\u6a23\u5566\uff01<\/ul>\n<\/ul>\n
        \n
          += \uff1a \u8868\u793a\u5f8c\u9762\u7684\u8a2d\u5b9a\u70ba\u300e\u5728\u539f\u4f86\u7684\u8a2d\u5b9a\u88e1\u982d\u52a0\u5165\u65b0\u7684\u53c3\u6578\u300f<\/ul>\n<\/ul>\n
            -+ \uff1a \u8868\u793a\u5f8c\u9762\u7684\u8a2d\u5b9a\u70ba\u300e\u5728\u539f\u4f86\u7684\u53c3\u6578\u6368\u68c4\u9019\u88e1\u8f38\u5165\u7684\u53c3\u6578\uff01\u300f<\/ul>\n
            \u7528\u9014\u4e0d\u592a\u76f8\u540c\uff0c\u656c\u8acb\u7559\u610f\u5466\uff01\u597d\u4e86\uff01\u5e95\u4e0b\u518d\u4f86\u8aaa\u4e00\u8aaa\u90a3\u4e9b attribute \u8207 value \uff01<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
            attribute
            \n(\u529f\u80fd)<\/td>\n            		assing_op
            \n(\u5141\u8a31\u7684\u52d5\u4f5c)<\/td>\n            		\u8aaa\u660e\u8207\u7bc4\u4f8b<\/td>\n<\/tr>\n
            \u4e00\u822c\u8a2d\u5b9a\u9805\u76ee\uff1a<\/span><\/td>\n<\/tr>\n
            disable<\/td>\nyes
            \nno<\/td>\n            		\u5141\u8a31\u8a72 server \u53ef\u4ee5\u57f7\u884c\u6216\u8005\u662f\u4e0d\u80fd\u57f7\u884c\uff01\u7576\u8a2d\u5b9a\u70ba yes \u8868\u793a\u8a72\u670d\u52d9\u4e0d\u80fd\u57f7\u884c\uff01 \u9019\u500b\u8a2d\u5b9a\u662f\u4e00\u5b9a\u8981\u7684\u5566\u3002\u5982\u679c\u6211\u60f3\u8981\u555f\u52d5\u67d0\u500b\u670d\u52d9\uff0c\u90a3\u9ebc\u9019\u88e1\u5c31\u8981\u8a2d\u5b9a\u6210\u70ba\uff1adisable = no<\/td>\n<\/tr>\n
            socket_type<\/td>\nstream
            \ndgram
            \nraw<\/td>\n            		stream \u70ba\u9023\u7dda\u6a5f\u5236\u8f03\u70ba\u53ef\u9760\u7684 TCP \u5c01\u5305\uff0c\u82e5\u70ba UDP \u5c01\u5305\u5247\u4f7f\u7528 dgram \u6a5f\u5236\u3002 raw \u4ee3\u8868 server \u9700\u8981\u8207 IP \u76f4\u63a5\u5c0d\u8ac7\uff01\u4f8b\u5982 telnet \u4f7f\u7528 TCP \uff0c\u6240\u4ee5\uff1asocket_type = stream<\/td>\n<\/tr>\n
            protocol<\/td>\ntcp
            \nudp
            \n….<\/td>\n            		\u9019\u500b\u6771\u897f\u8aaa\u7684\u662f\uff0c\u9023\u7dda\u7684\u72c0\u614b\u4f7f\u7528\u7684\u662f\u54ea\u4e00\u7a2e\u5354\u5b9a\uff01\uff1f\u5404\u500b\u5354\u5b9a\u7684\u4ee3\u865f\u53ef\u4ee5\u53c3\u8003 \/etc\/protocols \u5167\u5bb9\uff01\u6b64\u5916\uff0c\u9664\u975e\u662f\u4f60\u81ea\u5df1\u8a2d\u5b9a\u7684\u670d\u52d9\uff0c\u5426\u5247\u9019\u500b\u53ef\u4ee5\u4e0d\u7528\u8a2d\u5b9a\u5566\uff01<\/td>\n<\/tr>\n
            wait<\/td>\nyes
            \nno<\/td>\n            		\u9019\u5c31\u662f\u6211\u5011\u525b\u525b\u63d0\u5230\u7684\u00a0Multi-threaded<\/strong>\u00a0\u8207\u00a0single-threaded<\/strong>\u00a0\u7684\u65b9\u5f0f\u5566\uff01\u4e00\u822c\u4f86\u8aaa\uff0c\u6211\u5011\u5e0c\u671b\u5927\u5bb6\u7684\u8981\u6c42\u90fd\u53ef\u4ee5\u540c\u6642\u88ab\u555f\u7528\uff0c\u6240\u4ee5\u53ef\u4ee5\u8a2d\u5b9await = no<\/td>\n<\/tr>\n
            user<\/td>\nUID
            \nroot<\/td>\n            		\u9084\u8a18\u5f97\u6211\u5011\u5728\u00a0\u5e33\u865f\u7ba1\u7406\u00a0\u90a3\u4e00\u7bc7\u63d0\u5230\u7684 UID \u6982\u5ff5\u55ce\uff1f\u5c0d\u5566\uff01\u9019\u500b UID \u5c31\u662f\u90a3\u500b UID \u5566\uff01\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5047\u5982\u4f60\u7684\u670d\u52d9\u555f\u52d5\u8005\u4e0d\u8981\u4ee5 root \u70ba\u4e3b\u7684\u8a71\uff0c\u90a3\u9ebc\u9019\u500b\u5730\u65b9\u5c31\u53ef\u4ee5\u6539\u8b8a\u5176\u4ed6\u7684\u4f7f\u7528\u8005\uff0c\u4f8b\u5982 nobody \uff01\u9019\u500b\u549a\u549a\u4e5f\u6703\u6709\u5b89\u5168\u9632\u8b77\u7684\u6a5f\u5236\u5b58\u5728\uff01\u6b64\u5916\uff0c\u9700\u8981\u6ce8\u610f\u9019\u500b UID \u5fc5\u9808\u5b58\u5728\u65bc \/etc\/passwd \u3002<\/td>\n<\/tr>\n
            group<\/td>\nGID<\/td>\n\u8ddf user \u7684\u610f\u601d\u76f8\u540c\uff01\u53ea\u662f\u9019\u500b GID \u7684\u4f7f\u7528\u8005\u4e5f\u5fc5\u9808\u5b58\u5728\u65bc \/etc\/group \u7576\u4e2d\uff01<\/td>\n<\/tr>\n
            instances<\/td>\nnumber
            \nUNLIMITED<\/td>\n            		\u9019\u500b\u662f\u300e\u5728\u540c\u4e00\u6642\u9593\u4e4b\u5167\uff0c\u540c\u4e00\u500b\u670d\u52d9\u53ef\u4ee5\u5141\u8a31\u7684\u9023\u7dda\u6578\u76ee\u300f\u7684\u610f\u601d\uff0c \u4f60\u53ef\u4ee5\u5beb\u5165\u4e00\u500b\u300e\u6578\u5b57\u300f\u4f86\u63a7\u5236\u9023\u7dda\u6578\u76ee\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528 UNLIMITED \u4f86\u544a\u8a34\u7cfb\u7d71\u300e\u6c92\u6709\u4e0a\u9650\u300f\u56c9\uff01\u4f8b\u5982\u4f60\u5728\u540c\u6642\u6bb5\u4e4b\u5167\u50c5\u5141\u8a31 ftp \u9023\u7dda\u6709 30 \u500b\uff0c\u90a3\u9ebc\u9019\u88e1\u5c31\u53ef\u4ee5\u8f38\u5165 30 \u5566\uff01<\/td>\n<\/tr>\n
            nice<\/td>\n-19 ~ 19<\/td>\n\u9084\u8a18\u5f97\u6211\u5011\u5728\u00a0\u7a0b\u5e8f\u7ba1\u7406\u00a0\u88e1\u9762\u8ac7\u5230\u7684\u90a3\u500b nice \u6307\u4ee4\u55ce\uff1f\uff01\u5c0d\u5566\uff01\u9019\u88e1\u5c31\u662f\u9019\u500b\u6771\u897f\u56c9\uff01\u6578\u5b57\u8d8a\u5c0f( \u8ca0\u503c )\u4ee3\u8868\u8a72\u7a0b\u5e8f\u8d8a\u512a\u5148\u88ab\u57f7\u884c\uff01<\/td>\n<\/tr>\n
            server<\/td>\nprogram
            \n\u5b8c\u6574\u6a94\u540d<\/td>\n            		\u9019\u500b\u5c31\u662f\u6307\u51fa\u9019\u500b\u670d\u52d9\u7684\u555f\u52d5\u7a0b\u5f0f\uff01\u4f8b\u5982\u8981\u555f\u52d5 telnet \u7684\u8a71\uff0c\u5176\u5be6\u5c31\u662f in.telnetd \u9019\u652f\u7a0b\u5f0f\u5566\uff01\u6240\u4ee5\u9019\u500b\u6642\u5019\u5728\u9019\u88e1\u8f38\u5165server = \/usr\/sbin\/in.telnetd<\/td>\n<\/tr>\n
            server_args<\/td>\nprogram
            \n\u4e00\u4e9b\u53c3\u6578<\/td>\n            		\u9019\u88e1\u61c9\u8a72\u8f38\u5165\u7684\u5c31\u662f\u4f60\u7684 server \u90a3\u88e1\u9700\u8981\u8f38\u5165\u7684\u4e00\u4e9b\u53c3\u6578\u5566\uff01\u4f8b\u5982 in.telnetd \u7576\u4e2d\uff0c\u6211\u5011\u9084\u53ef\u4ee5\u52a0\u5165\u67d0\u4e9b\u53c3\u6578\uff01<\/td>\n<\/tr>\n
            log_on_success<\/td>\nPID
            \nHOST
            \nUSERID
            \nEXIT
            \nDURATION<\/td>\n            		\u5728\u300e\u6210\u529f\u767b\u5165\u300f\u4e4b\u5f8c\uff0c\u9700\u8981\u8a18\u9304\u7684\u9805\u76ee\uff1aPID \u70ba\u7d00\u9304\u8a72 server \u555f\u52d5\u6642\u5019\u7684 process ID \uff0c HOST \u70ba\u9060\u7aef\u4e3b\u6a5f\u7684 IP\u3001USERID \u70ba\u767b\u5165\u8005\u7684\u5e33\u865f\u3001EXTI \u70ba\u96e2\u958b\u7684\u6642\u5019\u8a18\u9304\u7684\u9805\u76ee\u3001 DURATION \u70ba\u8a72\u4f7f\u7528\u8005\u4f7f\u7528\u6b64\u670d\u52d9\u591a\u4e45\uff1f<\/td>\n<\/tr>\n
            log_on_failure<\/td>\nHOST
            \nUSERID
            \nATTEMPT
            \nRECORD<\/td>\n            		\u7576\u767b\u5165\u5931\u6557\u4e4b\u5f8c\u88ab syslog \u767b\u5165\u7684\u9805\u76ee\uff1aHOST\u70ba\u9060\u7aef\u4e3b\u6a5f\u7684 IP\uff0cUSERID\u70ba\u767b\u5165\u8005\u5e33\u865f\u3001 ATTEMPT\u70ba\u8a18\u9304\u767b\u5165\u5931\u6557\u8005\u4f01\u5716\u7684\u610f\u5716\u70ba\u4f55\u3001RECORD\u70ba\u8a18\u9304\u9060\u7aef\u4e3b\u6a5f\u7684\u8cc7\u8a0a\uff01\u4ee5\u53ca\u70ba\u4f55\u672c\u6a5f server \u4e0d\u80fd\u555f\u52d5\u7684\u539f\u56e0\uff01\u4e3b\u8981\u6709 login, shell, exec, finger \u7b49\u6307\u4ee4\u53ef\u4ee5\u4f7f\u7528\u5728\u9019\u88e1\uff01( \u57fa\u672c\u4e0a\uff0c\u53ef\u4ee5\u5728 \/etc\/hosts.allow \u6216 \/etc\/hosts.deny \u66f8\u5beb\u5167\u5bb9 )\u3002<\/td>\n<\/tr>\n
            \u9032\u968e\u8a2d\u5b9a\u9805\u76ee\uff1a<\/span><\/td>\n<\/tr>\n
            env<\/td>\n‘name=value’<\/td>\n\u9019\u4e00\u500b\u9805\u76ee\u53ef\u4ee5\u8b93\u4f60\u8a2d\u5b9a\u74b0\u5883\u8b8a\u6578\uff0c\u74b0\u5883\u8b8a\u6578\u7684\u8a2d\u5b9a\u898f\u5247\u53ef\u4ee5\u53c3\u8003\u00a0\u8a8d\u8b58 BASH Shell\u00a0\u3002<\/td>\n<\/tr>\n
            port<\/td>\nnumber<\/td>\n\u9019\u88e1\u53ef\u4ee5\u8a2d\u5b9a\u4e0d\u540c\u7684\u670d\u52d9\u8207\u5c0d\u61c9\u7684 port \uff0c\u4f46\u662f\u8acb\u8a18\u4f4f\u4f60\u7684 port \u8207\u670d\u52d9\u540d\u7a31\u5fc5\u9808\u8207 \/etc\/services \u5167\u8a18\u8f09\u7684\u76f8\u540c\u624d\u884c\uff01<\/td>\n<\/tr>\n
            redirect<\/td>\nIP_Address port<\/td>\n\u5c07 client \u7aef\u5c0d\u6211\u5011 server \u7684\u8981\u6c42\uff0c\u8f49\u5230\u53e6\u4e00\u90e8\u4e3b\u6a5f\u4e0a\u53bb\uff01\u5475\u5475\uff01\u9019\u500b\u597d\u73a9\u5466\uff01 \u4f8b\u5982\u7576\u6709\u4eba\u8981\u4f7f\u7528\u4f60\u7684 ftp \u6642\uff0c\u4f60\u53ef\u4ee5\u5c07\u4ed6\u8f49\u5230\u53e6\u4e00\u90e8\u6a5f\u5668\u4e0a\u9762\u53bb\uff01\u90a3\u500b IP_Address \u5c31\u4ee3\u8868\u53e6\u4e00\u90e8\u9060\u7aef\u4e3b\u6a5f\u7684 IP \u56c9\uff01<\/td>\n<\/tr>\n
            includedir<\/td>\ndirectory<\/td>\n\u8868\u793a\u5c07\u67d0\u500b\u76ee\u9304\u5e95\u4e0b\u7684\u6240\u6709\u6a94\u6848\u90fd\u7d66\u4ed6\u585e\u9032\u4f86 xinetd.conf \u9019\u500b\u8a2d\u5b9a\u88e1\u982d\uff01\u9019\u6771\u897f\u6709\u7528\u591a\u4e86\uff0c \u5982\u6b64\u4e00\u4f86\u6211\u5011\u53ef\u4ee5\u4e00\u500b\u4e00\u500b\u8a2d\u5b9a\u4e0d\u540c\u7684\u9805\u76ee\uff01\u800c\u4e0d\u9700\u8981\u5c07\u6240\u6709\u7684\u670d\u52d9\u90fd\u5beb\u5728 xinetd.conf \u7576\u4e2d\uff01\u4f60\u53ef\u4ee5\u5728 \/etc\/xinetd.conf \u767c\u73fe\u9019\u500b\u8a2d\u5b9a\u5466\uff01<\/td>\n<\/tr>\n
            \u5b89\u5168\u63a7\u7ba1\u9805\u76ee\uff1a<\/span><\/td>\n<\/tr>\n
            bind<\/td>\nIP_Address<\/td>\n\u9019\u500b\u662f\u8a2d\u5b9a\u300e\u5141\u8a31\u4f7f\u7528\u6b64\u4e00\u670d\u52d9\u7684\u4ecb\u9762\u5361\u300f\u7684\u610f\u601d\uff01\u8209\u500b\u4f8b\u5b50\u4f86\u8aaa\uff0c\u4f60\u7684 Linux \u4e3b\u6a5f\u4e0a\u9762\u6709\u5169\u500b IP \uff0c\u800c\u4f60\u53ea\u60f3\u8981\u8b93 IP1 \u53ef\u4ee5\u4f7f\u7528\u6b64\u4e00\u670d\u52d9\uff0c\u4f46 IP2 \u4e0d\u80fd\u4f7f\u7528\u6b64\u670d\u52d9\uff0c\u9019\u88e1\u5c31\u53ef\u4ee5\u5c07 IP1 \u5beb\u5165\u5373\u53ef\uff01\u90a3\u9ebc IP2 \u5c31\u4e0d\u53ef\u4ee5\u4f7f\u7528\u6b64\u4e00 server \u56c9<\/td>\n<\/tr>\n
            interface<\/td>\nIP_Address<\/td>\n\u8207 bind \u76f8\u540c<\/td>\n<\/tr>\n
            only_from<\/td>\n0.0.0.0
            \n192.168.1.0\/24
            \nhost_name
            \ndomain_name<\/td>\n            		\u9019\u6771\u897f\u7528\u5728\u5b89\u5168\u6a5f\u5236\u4e0a\u9762\uff0c\u4e5f\u5c31\u662f\u7ba1\u5236\u300e\u53ea\u6709\u9019\u88e1\u9762\u898f\u5b9a\u7684 IP \u6216\u8005\u662f\u4e3b\u6a5f\u540d\u7a31\u53ef\u4ee5\u767b\u5165\uff01\u300f\u5982\u679c\u662f 0.0.0.0 \u8868\u793a\u6240\u6709\u7684 PC \u7686\u53ef\u767b\u5165\uff0c\u5982\u679c\u662f 192.168.1.0\/24 \u5247\u8868\u793a\u70ba C class \u7684\u7db2\u57df\uff01\u4ea6\u5373\u7531 192.168.1.1 ~ 192.168.1.255 \u7686\u53ef\u767b\u5165\uff01\u53e6\u5916\uff0c\u4e5f\u53ef\u4ee5\u9078\u64c7 domain name \uff0c\u4f8b\u5982 .ev.ncku.edu.tw \u5c31\u53ef\u4ee5\u5141\u8a31\u6210\u5927\u74b0\u5de5\u7cfb\u7684\u7db2\u57df IP \u767b\u5165\u4f60\u7684\u4e3b\u6a5f\u4f7f\u7528\u8a72 server \uff01<\/td>\n<\/tr>\n
            no_access<\/td>\n0.0.0.0
            \n192.168.1.0\/24
            \nhost_name
            \ndomain_name<\/td>\n            		\u8ddf only_from \u5dee\u4e0d\u591a\u5566\uff01\u5c31\u662f\u7528\u4f86\u7ba1\u7406\u53ef\u5426\u9032\u5165\u4f60\u7684 Linux \u4e3b\u6a5f\u555f\u7528\u4f60\u7684 server \u670d\u52d9\u7684\u7ba1\u7406\u9805\u76ee\uff01 no_access \u8868\u793a\u300e\u4e0d\u53ef\u767b\u5165\u300f\u7684 PC \u56c9\uff01<\/td>\n<\/tr>\n
            access_times<\/td>\n00:00-12:00
            \nHH:MM-HH:MM<\/td>\n            		\u9019\u500b\u9805\u76ee\u5728\u8a2d\u5b9a\u300e\u8a72\u670d\u52d9 server \u555f\u52d5\u7684\u6642\u9593\u300f\uff0c\u4f7f\u7528\u7684\u662f 24 \u5c0f\u6642\u7684\u8a2d\u5b9a\uff01\u4f8b\u5982\u4f60\u7684 ftp \u8981\u5728 8 \u9ede\u5230 16 \u9ede\u958b\u653e\u7684\u8a71\uff0c\u5c31\u662f\uff1a 08:00-16:00\u3002<\/td>\n<\/tr>\n
            umask<\/td>\n000
            \n777
            \n022<\/td>\n            		\u9084\u8a18\u5f97\u5728\u00a0\u6a94\u6848\u6b0a\u9650\u00a0\u88e1\u9762\u7d04\u7565\u63d0\u904e\u7684 umask \u9019\u500b\u6771\u897f\u55ce\uff1f\u5475\u5475\uff01\u6c92\u932f\uff01\u5c31\u662f\u90a3\u500b\u9b3c\u73a9\u610f\u5152\u56c9\uff01 \u53ef\u4ee5\u8a2d\u5b9a\u4f7f\u7528\u8005\u5efa\u7acb\u76ee\u9304\u6216\u8005\u662f\u6a94\u6848\u6642\u5019\u7684\u5c6c\u6027\uff01\u7cfb\u7d71\u5efa\u8b70\u503c\u662f 022 \u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
            OK\uff01\u6211\u5011\u5c31\u5229\u7528\u4e0a\u9762\u9019\u4e9b\u53c3\u6578\u4f86\u67b6\u69cb\u51fa\u6211\u5011\u6240\u9700\u8981\u7684\u4e00\u4e9b\u670d\u52d9\u7684\u8a2d\u5b9a\u5427\uff01 \u53c3\u8003\u770b\u770b\u5e95\u4e0b\u7684\u8a2d\u5b9a\u65b9\u6cd5\u56c9\uff01 \u6211\u5011\u8aaa\u904e\uff0c\u4f7f\u7528 super daemon \u4f86\u7ba1\u7406\u4e3b\u6a5f\uff0c\u6700\u5927\u7684\u512a\u9ede\u5c31\u662f\u591a\u4e86\u4e00\u9053\u7ba1\u7406\u7684\u624b\u7e8c\uff0c \u6240\u4ee5\uff0c\u53ef\u4ee5\u9032\u884c\u6bd4\u8f03\u591a\u7684\u76e3\u63a7\u52d5\u4f5c\uff0c\u50cf\u4e0a\u4e00\u500b\u5c0f\u7bc0\u6211\u5011\u63d0\u5230\u7684\u76f8\u95dc\u53c3\u6578\u7576\u4e2d\uff0c \u5c31\u80fd\u5920\u767c\u73fe\u5230\u4e00\u4e9b\u7aef\u502a\u4e86\u3002\u5728\u9019\u88e1\uff0c\u6211\u5011\u8209\u500b\u7c21\u55ae\u7684\u4f8b\u5b50\u4f86\u8aaa\u660e\u4e00\u4e0b\u6574\u500b super daemon \u7684\u7ba1\u7406\u5427\uff01\u4f46\u662f\u8981\u8a2d\u5b9a telnet \u7684\u8a71\uff0c\u5c31\u5f97\u8981\u5b89\u88dd telnet \u624d\u884c\u3002 \u5728 FC4 \u7684\u7248\u672c\u4e0a\uff0c\u6211\u5011\u5b89\u88dd\u7684\u662f telnet-server-0.17-35 \u9019\u500b\u5957\u4ef6\u8cc7\u6599\uff0c \u8acb\u60a8\u5148\u4ee5\u00a0rpm \u7684\u65b9\u5f0f\u00a0\u4f86\u5b89\u88dd\u5594\uff01 ^_^<\/p><\/div>\n
            \n\u5728\u9810\u8a2d\u7684 \/etc\/xinetd.d\/telnet \u5167\u5bb9\u662f\u9019\u6a23\u7684\uff1a<\/p>\n\n\n\n
            \n
            [root@linux ~]# vi \/etc\/xinetd.d\/telnet<\/span>\r\nservice telnet\r\n{\r\n        flags           = REUSE   <==\u984d\u5916\u7684\u53c3\u6578\u4f7f\u7528 REUSE <\/span>\r\n        socket_type     = stream  <==\u4f7f\u7528 TCP \u7684\u5c01\u5305\u683c\u5f0f<\/span>\r\n        wait            = no      <==\u53ef\u4ee5\u6709\u591a\u500b\u9023\u7dda\u540c\u6642\u9023\u9032\u4f86<\/span>\r\n        user            = root    <==\u555f\u52d5\u8005\u9810\u8a2d\u70ba root <\/span>\r\n        server          = \/usr\/sbin\/in.telnetd <==\u4f7f\u7528\u7684\u662f\u9019\u652f\u7a0b\u5f0f\uff01<\/span>\r\n        log_on_failure  += USERID <==\u82e5\u767b\u5165\u932f\u8aa4\uff0c\u300e\u52a0\u8a08\u300f\u8a18\u9304\u4f7f\u7528\u8005 ID<\/span>\r\n        disable         = yes     <==\u6b64\u670d\u52d9\u9810\u8a2d\u95dc\u9589\uff01<\/span>\r\n}\r\n<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
            \u5176\u5be6\uff0c\u4e3b\u8981\u7684\u53c3\u6578\u53ef\u4ee5\u53c3\u8003\u4e0a\u4e00\u5c0f\u7bc0\u7684\u8868\u683c\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5229\u7528\u300e man xinetd.conf \u300f\u4f86\u67e5\u95b1\uff01 \u4e0d\u904e\uff0c\u5982\u679c\u4f60\u5c0d\u65bc\u9019\u6a23\u7684\u8a2d\u5b9a\u4e26\u4e0d\u6eff\u610f\u7684\u8a71\uff0c\u5176\u5be6\u9084\u53ef\u4ee5\u624b\u52d5\u4f86\u4fee\u6539\u5462\uff01 \u56e0\u70ba\u6211\u5011\u77e5\u9053\uff0c telnet \u4e26\u4e0d\u662f\u500b\u5341\u5206\u5b89\u5168\u7684\u670d\u52d9\uff0c\u8a73\u7d30\u6a5f\u5236\u53ef\u4ee5\u53c3\u8003\u00a0\u4f3a\u670d\u5668\u7bc7\u00a0\u7684\u00a0\u9060\u7aef\u9023\u7dda\u4f3a\u670d\u5668\u00a0\u4f86\u67e5\u95b1\uff0c \u6240\u4ee5\uff0c\u5982\u679c\u4f60\u60f3\u8981\u66f4\u591a\u7684\u5b89\u5168\u6a5f\u5236\uff0c\u8209\u4f8b\u4f86\u8aaa\uff0c\u4f60\u60f3\u8981\u8b93 telnet \u5728\u5340\u57df\u7db2\u8def\u5167\u8207 Internet \u4e0a\u9762\u7684\u9023\u7dda\u6a5f\u5236\u6709\u5dee\u7570\u6642\uff0c\u4f8b\u5982\u9019\u6a23\uff1a<\/p>\n