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style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u793a\u4f8b\uff0c\u5728\u4e0a\u4e2a\u4e8b\u4f8b\u4e2da\u76ee\u5f55\u4e0b\u521b\u5efa\u4e09\u4e2a\u6587\u4ef6bcd\u4e4b\u540e\u7ed9\u666e\u901a\u7528\u6237\u964d\u4f4e\u8bfb\u7684\u6743\u9650r\u4f7f\u7528\u666e\u901a\u5e10\u6237\u67e5\u770b\u6b64\u76ee\u5f55a<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/09\/1694520324970_16.png' alt='linux\u6267\u884c\u6743\u9650\u548c\u5199\u6743\u9650_linux\u6267\u884c\u6587\u4ef6\u6743\u9650\u4e0d\u591f_linux\u6587\u4ef6\u6267\u884c\u6743\u9650' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u53ef\u4ee5\u89c1\u5230\u6709\u4ec0\u4e48\u6587\u4ef6\u3002<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u964d\u4f4e\u6743\u9650\u6267\u884cx<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/09\/1694520324970_17.png' alt='linux\u6267\u884c\u6743\u9650\u548c\u5199\u6743\u9650_linux\u6267\u884c\u6587\u4ef6\u6743\u9650\u4e0d\u591f_linux\u6587\u4ef6\u6267\u884c\u6743\u9650' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u5c1d\u8bd5\u5728\u8be5\u76ee\u5f55\u4e0b\u521b\u5efa\u6587\u4ef6e<strong>linux\u6587\u4ef6\u6267\u884c\u6743\u9650<\/strong>\uff0c\u663e\u793a\u6743\u9650\u4e0d\u591f<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u9ed8\u8ba4\u6743\u9650umask<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u7b2c\u4e00\u4e2a0\u8868\u793a\u7279\u6b8a\u6743\u9650<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>002=rwxrwx-wx(2\u4ee3\u8868\u5199\u5165\u6743\u9650\u8fd9\u513f2\u53ea\u6ca1\u6709\u8be5\u5199\u5165\u6743\u9650)<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>022=rwxr-xr-x<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u793a\u4f8b\uff1a\u4f7f\u7528\u9ed8\u8ba4\u6743\u9650\u521b\u5efa\u6587\u4ef6\u548c\u76ee\u5f550022\u76ee\u5f55\u7684\u6743\u9650\u548c\u6211\u4eec\u610f\u6599\u7684\u662f\u4e00\u6837\u7684\uff0c\u4f46\u6587\u4ef6\u5374\u5c11\u4e86x\u6743\u9650\u8fd9\u662f\u7531\u4e8e\u5728\u521b\u5efa\u6587\u4ef6\u7684\u65f6\u4faflinux\u7248qq\uff0c<a style='color:#0000CC;font-size:16px' href='https:\/\/www.linuxdown.com\/' target='_blank' rel=\"noopener\">\u7cfb\u7edf<\/a>\u4f1a\u624b\u52a8\u53d6\u8d70x\u6743\u9650\u3002\u6240\u4ee5rw-r--r--<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/09\/1694520324970_21.png' alt='linux\u6267\u884c\u6587\u4ef6\u6743\u9650\u4e0d\u591f_linux\u6267\u884c\u6743\u9650\u548c\u5199\u6743\u9650_linux\u6587\u4ef6\u6267\u884c\u6743\u9650' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u793a\u4f8b\uff1a\u5047\u5b9a\u6211\u4eec\u54ea\u4e9b\u6743\u9650\u90fd\u4e0d\u53d6\u8d70umask000\uff0c\u540c\u6837\u521b\u5efa\u6587\u4ef6a\u548c\u76ee\u5f55b<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/09\/1694520324970_22.png' alt='linux\u6267\u884c\u6587\u4ef6\u6743\u9650\u4e0d\u591f_linux\u6587\u4ef6\u6267\u884c\u6743\u9650_linux\u6267\u884c\u6743\u9650\u548c\u5199\u6743\u9650' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u6062\u590d\u9ed8\u8ba4\u6743\u9650\uff0c\u6ce8\uff1a\u6ca1\u4e8b\u4e0d\u8981\u968f\u610f\u8c03\u6574\u9ed8\u8ba4\u503c\u3002<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>umask0000\u662f\u4e34\u65f6\u66f4\u6539\uff0c\u6c38\u4e45\u66f4\u6539\u987b\u8981\u5728\/etc\/bashrc\u66f4\u6539(\u6ce8\uff1a\u522b\u4e71\u8dd1\u8fd9\u4e2a\u6587\u4ef6)<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/09\/1694520324970_24.png' alt='linux\u6587\u4ef6\u6267\u884c\u6743\u9650_linux\u6267\u884c\u6743\u9650\u548c\u5199\u6743\u9650_linux\u6267\u884c\u6587\u4ef6\u6743\u9650\u4e0d\u591f' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>linux\u7528\u6237\u7ba1\u7406<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>1.etc\/passwd\u8bb0\u5f55linux\u6240\u6709\u5e10\u53f7<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u521d\u671fx\u4ee3\u8868\u7528\u6237\u7684\u767b\u5f55\u5bc6\u7801\uff0c\u5982\u4eca\u653e\u5728shadow\u6587\u4ef6\u4e2d\uff0cUID\uff1a0\u4ee3\u8868\u7cfb\u7edf\u7ba1\u7406\u5458GID\uff1a0\uff0c\u5047\u5982\u6211\u4eec\u628ahxh\u8fd9\u884c1000\u6539\u62100\u5219hxh\u5c31\u5f04\u6210\u4e86\u7cfb\u7edf\u7ba1\u7406\u5458\u30020-999\u4f9b\u7cfb\u7edf\u4f7f\u75281000\u4ee5\u4e0a\u7ed9\u4f7f\u7528\u8005<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u65c1\u8fb9\u5219\u8868\u793a\u8fd9\u4e2a\u4f7f\u7528\u8005\u7684\u4fe1\u606f\/home\/hxh\u8868\u793a\u8fd9\u4e2a\u7528\u6237\u767b\u5f55\u6240\u5904\u7684\u4f4d\u7f6e\/bin\/bash\u4ee3\u8868\u8be5\u7528\u6237\u53ef\u4ee5\u4f7f\u7528<a style='color:#0000CC;font-size:16px' href='https:\/\/www.linuxcool.com\/' target='_blank' rel=\"noopener\">\u547d\u4ee4<\/a>\u884cshell\u82e5\u679c\u4e0d\u80fd\u4f7f\u7528\u5219\u663e\u793a\/sbin\/nologin<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/09\/1694520324970_29.png' alt='linux\u6267\u884c\u6587\u4ef6\u6743\u9650\u4e0d\u591f_linux\u6267\u884c\u6743\u9650\u548c\u5199\u6743\u9650_linux\u6587\u4ef6\u6267\u884c\u6743\u9650' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>2.etc\/shadow\u8bb0\u5f55\u5e10\u6237\u5bf9\u5e94\u7684\u5bc6\u7801<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/09\/1694520324970_30.png' alt='linux\u6267\u884c\u6587\u4ef6\u6743\u9650\u4e0d\u591f_linux\u6267\u884c\u6743\u9650\u548c\u5199\u6743\u9650_linux\u6587\u4ef6\u6267\u884c\u6743\u9650' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u7eff\u8272\u5bf9\u5e94\u7684\u662f\u52a0\u5bc6\u540e\u7684\u5bc6\u7801\uff1a\uff1a\u8868\u793a\u8fd1\u6765\u66f4\u6539\u5bc6\u7801\u7684\u65e5\u671f0\u4ee3\u8868\u53ef\u4ee5\u968f\u65f6\u66f4\u6539\u5bc6\u7801\uff08\u5047\u5982\u6570\u503c\u662f1\u6df1\u5ea6linux\u7cfb\u7edf\uff0c\u5219\u8868\u793a\u4e09\u5929\u5185\u4e0d\u80fd\u66f4\u6539\u5bc6\u7801\uff0999999\u8868\u793a\u5982\u6b64\u591a\u5929\u4e4b\u540e\u7528\u6237\u5fc5\u987b\u66f4\u6539\u5bc6\u7801<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>7\u4ee3\u8868\u88ab\u5f3a\u5236\u66f4\u6539\u5bc6\u7801\u524d7\u5929\uff0c\u7cfb\u7edf\u4f1a\u901a\u77e5\u7528\u6237\u3002<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>3.etc\/group\u8bb0\u5f55\u6240\u6709\u7ec4<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u7ec4\u540d\u7ec4\u5bc6\u7801\u7ec4ID\uff08GID\uff09\u9644\u5c5e\u7ec4\uff08\u7ec4\u4e0a\u9762\u7684\u7528\u6237\uff09<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u6dfb\u52a0\u7528\u6237useradd<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-u\u8bbe\u7f6euid<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-g\u8bbe\u7f6e\u4e3b\u8981\u7ec4<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-G\u8bbe\u7f6e\u9644\u5c5e\u7ec4<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-c\u8bbe\u7f6e\u7528\u6237\u8bf4\u660e<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-d\u8bbe\u7f6e\u7528\u6237\u5bb6\u76ee\u5f55<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-s\u8bbe\u7f6e\u7528\u6237shell<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-e\u8bbe\u7f6e\u7528\u6237\u5bc6\u7801\u5931\u6548\u65e5\u671f<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-f\u6307\u5b9a\u5bc6\u7801\u662f\u5426\u5931\u6548<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>usermod\u53ef\u4ee5\u5c0f\u8303\u56f4\u7684\u66f4\u6539\u7528\u6237\u7684\u4fe1\u606f<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-I\u66f4\u6539\u7528\u6237\u540d<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-L\u51bb\u7ed3\u5e10\u53f7<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-U\u89e3\u51bb\u5e10\u53f7<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u6ce8\u610f\uff1a<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u5f53\u6211\u4eec\u521b\u5efa\u9ed8\u8ba4\u9009\u9879\u521b\u5efa\u5e10\u6237useradd\u7528\u6237\u540dlinux\u4f1a\u9ed8\u8ba4\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u5728\/etc\/passwd\/\u76ee\u5f55\u4e0b\u5b8c\u5584\u76f8\u5173\u8d44\u6599<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u5728\/etc\/shadow\u5199\u5165\u4e0e\u5bc6\u7801\u76f8\u5173\u7684\u53c2\u6570<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u5728\/etc\/group\u5199\u5165\u548c\u5e10\u53f7\u540d\u4e00\u6837\u7684\u7ec4<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u5728\/home\u521b\u5efa\u7528\u6237\u7684\u5bb6\u76ee\u5f55<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u66f4\u6539\u7528\u6237\u5bc6\u7801passwd<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-l\u9501\u4f4f\u8be5\u5e10\u6237<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-u\u89e3\u9501<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-S\u663e\u793a\u5e10\u6237\u5bc6\u7801\u53c2\u6570<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-n\u8bbe\u7f6e\u591a\u4e45\u4e0d\u987b\u8981\u66f4\u6539\u5bc6\u7801<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-x\u8bbe\u7f6e\u591a\u4e45\u5fc5\u987b\u66f4\u6539\u5bc6\u7801<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/09\/1694520324970_31.png' alt='linux\u6267\u884c\u6587\u4ef6\u6743\u9650\u4e0d\u591f_linux\u6587\u4ef6\u6267\u884c\u6743\u9650_linux\u6267\u884c\u6743\u9650\u548c\u5199\u6743\u9650' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-w\u5bc6\u7801\u8fc7\u671f\u524d\u8b66\u544a\u7684\u5929\u6570<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-i\u8bbe\u7f6e\u5bc6\u7801\u5931\u6548\u7684\u65e5\u671f<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u793a\u4f8b\uff1a<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/09\/1694520324970_33.png' alt='linux\u6587\u4ef6\u6267\u884c\u6743\u9650_linux\u6267\u884c\u6743\u9650\u548c\u5199\u6743\u9650_linux\u6267\u884c\u6587\u4ef6\u6743\u9650\u4e0d\u591f' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>chage\u66f4\u6539\u5e10\u6237\u5bc6\u7801\u76f8\u5173\u7684\u53c2\u6570<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-d\u66f4\u6539\u6700\u540e\u66f4\u6539\u5bc6\u7801\u7684\u65f6\u95f4<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-E\u66f4\u6539\u5bc6\u7801\u5931\u6548\u65f6\u95f4<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-I\u8bbe\u7f6e\u51e0\u5929\u540e\u5931\u6548<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-m\u8bbe\u7f6e\u5bc6\u7801\u8d77\u7801\u4fdd\u7559\u51e0\u5929<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-M\u8bbe\u7f6e\u5bc6\u7801\u591a\u5c11\u5929\u540e\u987b\u8981\u66f4\u65b0<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>-W\u8bbe\u7f6e\u5bc6\u7801\u8fc7\u671f\u524d\u8b66\u544a\u7684\u5929\u6570<\/p>\n<p 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