{"id":13542,"date":"2024-02-05T15:23:31","date_gmt":"2024-02-05T07:23:31","guid":{"rendered":"https:\/\/92it.top\/?p=13542"},"modified":"2024-02-05T15:23:31","modified_gmt":"2024-02-05T07:23:31","slug":"linux%e6%9d%83%e9%99%90%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=13542","title":{"rendered":"Linux\u6743\u9650\u7ba1\u7406"},"content":{"rendered":"\n

\u8f6c\u8f7d\uff1ahttps:\/\/cloud.tencent.com\/developer\/article\/2387349<\/a><\/p>\n\n\n\n

\u4e4b\u524d\u5728\u7528\u6237\u7ba1\u7406\u4e2d\u63d0\u5230\u7528\u6237\u548c\u7ec4\u7684\u6982\u5ff5\uff0c\u670d\u52a1\u5668<\/a>\u6dfb\u52a0\u591a\u8d26\u6237\u7684\u4f5c\u7528\u4e4b\u4e00\u662f\u53ef\u4ee5\u9488\u5bf9\u4e0d\u540c\u7528\u6237\u5206\u914d\u4e0d\u540c\u7684\u6743\u9650\uff0c\u4ece\u800c\u6839\u636e\u4e0d\u540c\u6743\u9650\u9650\u5236\u7528\u6237\u53ef\u4ee5\u8bbf\u95ee\u5230\u7684\u7cfb\u7edf\u8d44\u6e90\u3002\u90a3\u4e48\u8fd9\u6b21\u5c31\u6765\u8bf4\u4e00\u4e0bLinux\u6743\u9650\u7ba1\u7406\u7684\u76f8\u5173\u5185\u5bb9\uff0c\u8fd9\u90e8\u5206\u4e5f\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5982\u4e0b\u3002<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

\u4e00\u3001\u6743\u9650\u6982\u8ff0<\/strong><\/p>\n\n\n\n

\n\n\n\n

1\u3001\u6743\u9650\u57fa\u672c\u6982\u5ff5<\/strong><\/p>\n\n\n\n

\u5728\u591a\u7528\u6237\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u7ba1\u7406\u4e2d\uff0c\u6743\u9650\u662f\u6307\u67d0\u4e2a\u7279\u5b9a\u7684\u7528\u6237\u5177\u6709\u7279\u5b9a\u7684\u7cfb\u7edf\u8d44\u6e90\u4f7f\u7528\u6743\u5229\u3002<\/p>\n\n\n\n

\u5728Linux \u4e2d\u5206\u522b\u6709\u8bfb\u3001\u5199\u3001\u6267\u884c\u6743\u9650\uff1a<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n
\u6ce8\uff1a\u4e00\u822c\u7ed9\u4e88\u76ee\u5f55\u8bfb\u6743\u9650\u65f6\uff0c\u4e5f\u5c06\u4f1a\u7ed9\u5176\u6267\u884c\u6743\u9650\uff0c\u5c5e\u4e8e\u201c\u5957\u9910\u201d\u7ec4\u5408\n\n\u53ef\u8bfb\u6743\u9650 read => r\uff08\u7b80\u5199\uff09\uff0c\u53ef\u5199\u6743\u9650 write => w\uff08\u7b80\u5199\uff09\uff0c\u53ef\u6267\u884c\u6743\u9650 excute => x\uff08\u7b80\u5199\uff09<\/pre>\n\n\n\n
2\u3001\u8bbe\u7f6e\u6743\u9650\u7684\u539f\u56e0<\/strong><\/p>\n\n\n\n
  • 1\uff09\u670d\u52a1\u5668\u4e2d\u7684\u6570\u636e\u4ef7\u503c<\/li>
  • 2\uff09\u5458\u5de5\u7684\u5de5\u4f5c\u804c\u8d23\u548c\u5206\u5de5\u4e0d\u540c<\/li>
  • 3\uff09\u5e94\u5bf9\u81ea\u5916\u90e8\u7684\u653b\u51fb(\u6302\u9a6c)<\/li>
  • 4\uff09\u5185\u90e8\u7ba1\u7406\u7684\u9700\u8981<\/li><\/ul>\n\n\n\n
    3\u3001Linux\u7528\u6237\u8eab\u4efd\u7c7b\u522b<\/strong><\/p>\n\n\n\n
    Linux \u7cfb\u7edf\u4e00\u822c\u5c06\u6587\u4ef6\u6743\u9650\u5206\u4e3a3 \u7c7b\uff1aread\uff08\u8bfb\uff09\u3001write\uff08\u5199\uff09\u3001execute\uff08\u6267\u884c\uff09\u3002\u90a3\u4e48\u8c01\u5bf9\u6587\u4ef6\u6709\u8bfb\uff0c\u5199\uff0c\u6267\u884c\u7684\u6743\u9650\u5462\uff1f \u9488\u5bf9\u4ee5\u4e0b\u4e09\u5927\u7c7b\u7528\u6237\u3002<\/p>\n\n\n\n
    3.1 user\u6587\u4ef6\u62e5\u6709\u8005<\/p>\n\n\n\n
    \u6587\u4ef6\u7684\u62e5\u6709\u8005\uff1a\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u8c01\u521b\u5efa\u4e86\u8fd9\u4e2a\u6587\u4ef6\u8c01\u5c31\u662f\u6587\u4ef6\u7684\u62e5\u6709\u8005\u3002\u6587\u4ef6\u7684\u62e5\u6709\u8005\u53ef\u4ee5\u8fdb\u884c\u66f4\u6539\u5e76\u4e0d\u662f\u4e00\u6210\u4e0d\u53d8\u7684\u3002<\/p>\n\n\n\n
    zhengyquan => linux.txt\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0czhengyquan\u5c31\u662flinux.txt\u6587\u4ef6\u7684\u62e5\u6709\u8005<\/p>\n\n\n\n
    3.2 group\u6587\u4ef6\u6240\u5c5e\u7ec4\u5185\u7528\u6237<\/p>\n\n\n\n
    group\u6240\u5c5e\u7ec4\u5185\u7528\u6237\u4ee3\u8868\u4e0e\u6587\u4ef6\u7684\u6240\u5c5e\u7ec4\u76f8\u540c\u7684\u7ec4\u5185\u7528\u6237\u3002<\/p>\n\n\n\n
    \u6bd4\u5982\uff0czhangsan\u4e0e lishi\u3001wangwu\u90fd\u540c\u5c5e\u4e8e\u4e00\u4e2a zhengyquan\u7684\u7528\u6237\u7ec4\uff0clishi\u548c wangwu\u5c31\u662f\u8fd9\u4e2a\u6587\u4ef6\u7684\u7ec4\u5185\u7528\u6237\u3002<\/p>\n\n\n\n
    3.3 other\u5176\u4ed6\u7528\u6237<\/p>\n\n\n\n
    \u5bf9\u4e8e\u65e2\u4e0d\u662f\u6587\u4ef6\u7684\u62e5\u6709\u8005\uff0c\u4e5f\u4e0d\u662f\u6587\u4ef6\u6240\u5c5e\u7ec4\u5185\u7684\u7528\u6237\uff0c\u5c31\u628a\u8fd9\u4e9b\u4eba\u79f0\u4e4b\u4e3aother\u5176\u4ed6\u7528\u6237\u3002<\/p>\n\n\n\n
    \u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u4e09\u5927\u7c7b\u7528\u6237\u4e5f\u53ef\u4ee5\u62e5\u6709\u7b80\u5199\u5f62\u5f0fuser(u)\u3001group(g)\u3001other(o)<\/pre>\n\n\n\n
    4\u3001\u7279\u6b8a\u7528\u6237root\uff08\u6269\u5c55\uff09<\/strong><\/p>\n\n\n\n
    \u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0croot\u62e5\u6709\u6700\u9ad8\u6743\u9650\uff08\u9488\u5bf9\u6240\u6709\u6587\u4ef6\uff09\uff0c\u6240\u4ee5\u6743\u9650\u8bbe\u7f6e\u5bf9root\u8d26\u53f7\u6ca1\u6709\u6548\u679c\u3002<\/p>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u4e8c\u3001\u666e\u901a\u6743\u9650\u7ba1\u7406<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    1\u3001ls -l\u547d\u4ee4\u67e5\u770b\u6587\u4ef6\u6743\u9650<\/strong><\/p>\n\n\n\n
    \u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n
    ls -l\n\u6216\nll<\/pre>\n\n\n\n
    \u529f\u80fd\uff1a\u67e5\u770b\u5f53\u524d\u6587\u4ef6\u5939\u4e0b\u7684\u6240\u6709\u76ee\u5f55\u548c\u6587\u4ef6\u7684\u8be6\u7ec6\u4fe1\u606f<\/p>\n\n\n\n
    \u6ce8\uff1all\u547d\u4ee4\u662f\u7ea2\u5e3d\u4ee5\u53caCentOS\u7cfb\u7edf\u7279\u6709\u7684\u4e00\u4e2a\u547d\u4ee4\uff0c\u5728\u5176\u4ed6\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u53ef\u80fd\u5e76\u4e0d\u652f\u6301<\/p>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    2\u3001\u6587\u4ef6\u7c7b\u578b+\u6743\u9650\u89e3\u6790<\/strong><\/p>\n\n\n\n
    Linux \u4e2d\u5b58\u5728\u4e09\u7c7b\u8eab\u4efd\uff1a<\/p>\n\n\n\n
    \u5c5e\u4e3b(owner\u62e5\u6709\u8005)<\/p>\n\n\n\n
    \u5c5e\u7ec4(group\u7528\u6237\u7ec4)<\/p>\n\n\n\n
    \u5176\u4ed6\u7528\u6237\uff08others\uff09<\/p>\n\n\n\n
    \u5404\u81ea\u6709\u4e0d\u540c\u7684\u6743\u9650\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u6587\u6863\u6765\u8bf4\uff0c\u5176\u6743\u9650\u5177\u4f53\u5206\u914d\u5982\u4e0b\uff1a<\/p>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    Linux\u4e00\u5171\u67097\u79cd\u6587\u4ef6\u7c7b\u578b\uff0c\u5206\u522b\u5982\u4e0b:<\/p>\n\n\n\n
    -\uff1a\u666e\u901a\u6587\u4ef6<\/p>\n\n\n\n
    d\uff1a\u76ee\u5f55\u6587\u4ef6<\/p>\n\n\n\n
    l\uff1a \u8f6f\u94fe\u63a5\uff08\u7c7b\u4f3cWindows\u7684\u5feb\u6377\u65b9\u5f0f\uff09<\/p>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    (\u4e0b\u9762\u56db\u79cd\u662f\u7279\u6b8a\u6587\u4ef6)<\/p>\n\n\n\n
    b\uff1ablock\uff0c\u5757\u8bbe\u5907\u6587\u4ef6\uff08\u4f8b\u5982\u786c\u76d8\u3001\u5149\u9a71\u7b49\uff09<\/p>\n\n\n\n
    p\uff1a\u7ba1\u9053\u6587\u4ef6<\/p>\n\n\n\n
    c\uff1a\u5b57\u7b26\u8bbe\u5907\u6587\u4ef6\uff08\u4f8b\u5982\u732b(\u4e0a\u7f51\u732b)\u7b49\u4e32\u53e3\u8bbe\u5907\uff09<\/p>\n\n\n\n
    s\uff1a\u5957\u63a5\u53e3\u6587\u4ef6\/\u6570\u636e\u63a5\u53e3\u6587\u4ef6\uff08\u4f8b\u5982\u542f\u52a8\u4e00\u4e2aMySql\u670d\u52a1\u5668\u65f6\u4f1a\u4ea7\u751f\u4e00\u4e2amysql.sock\u6587\u4ef6\uff09<\/p>\n\n\n\n
    3\u3001\u6587\u4ef6\u6216\u6587\u4ef6\u5939\u6743\u9650\u8bbe\u7f6e\uff08\u5b57\u6bcd\uff09<\/strong><\/p>\n\n\n\n
    \u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n
    chmod [\u9009\u9879] \u6743\u9650\u8bbe\u7f6e \u6587\u4ef6\u6216\u76ee\u5f55\u7684\u540d\u79f0\n\u9009\u9879\u8bf4\u660e\uff1a\n-R \uff1a\u9012\u5f52\u8bbe\u7f6e\uff0c\u9488\u5bf9\u6587\u4ef6\u5939\uff08\u76ee\u5f55\uff09\n#ch = change\uff0cmod\u7b80\u5355\u7406\u89e3\u6743\u9650<\/pre>\n\n\n\n
    \u5b57\u6bcd\u8bbe\u7f6e\u4e3b\u8981\u770b\u4e09\u65b9\u9762\uff08\u91cd\u70b9\uff09<\/strong><\/p>\n\n\n\n
    \u7b2c\u4e00\u4e2a\uff1a\u786e\u8ba4\u8981\u7ed9\u54ea\u4e2a\u8eab\u4efd\u8bbe\u7f6e\u6743\u9650\uff0cu\u3001g\u3001o\u3001ugo(a)\n\u7b2c\u4e8c\u4e2a\uff1a\u786e\u8ba4\u662f\u6dfb\u52a0\u6743\u9650(+)\u3001\u5220\u9664\u6743\u9650(-)\u8fd8\u662f\u8d4b\u4e88\u6743\u9650(=) \n\u7b2c\u4e09\u4e2a\uff1a\u786e\u8ba4\u7ed9\u8fd9\u4e2a\u7528\u6237\u9488\u5bf9\u8fd9\u4e2a\u6587\u4ef6\u6216\u6587\u4ef6\u5939\u8bbe\u7f6e\u4ec0\u4e48\u6837\u7684\u6743\u9650\uff0cr\u3001w\u3001x<\/pre>\n\n\n\n
    \u6848\u4f8b1\uff1a\u7ed9readme.txt\u6587\u4ef6\u7684\u62e5\u6709\u8005<\/strong>\uff0c\u589e\u52a0\u4e00\u4e2a\u53ef\u6267\u884c\u6743\u9650<\/p>\n\n\n\n
    chmod u+x readme.txt<\/pre>\n\n\n\n
    \u6848\u4f8b2\uff1a\u628areadme.txt\u6587\u4ef6\u7684\u62e5\u6709\u8005<\/strong>\u7684\u53ef\u6267\u884c\u6743\u9650\u53bb\u9664<\/p>\n\n\n\n
    chmod u-x readme.txt<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u6848\u4f8b3\uff1a\u4e3areadme.txt\u4e2d\u7684\u6240\u5c5e\u7ec4\u5185\u7528\u6237<\/strong>\u8d4b\u4e88rw\u6743\u9650<\/p>\n\n\n\n
    chmod g=rw readme.txt<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u6848\u4f8b4\uff1a\u7ed9shop\u76ee\u5f55\u53ca\u5176\u5185\u90e8\u7684\u6587\u4ef6\u7edf\u4e00\u6dfb\u52a0w\u53ef\u5199\u6743\u9650<\/p>\n\n\n\n
    chmod -R ugo+w shop\n\u6216\nchmod -R a+w shop<\/pre>\n\n\n\n
    \u6848\u4f8b5\uff1a\u7ed9shop\u76ee\u5f55\u8bbe\u7f6e\u6743\u9650\uff0c\u8981\u6c42\u62e5\u6709\u8005rwx\uff0c\u7ec4\u5185\u7528\u6237r-x\uff0c\u5176\u4ed6\u7528\u6237r-x<\/p>\n\n\n\n
    chmod -R u=rwx,g=r-x,o=r-x shop<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u540c\u65f6\u8bbe\u7f6e\u591a\u4e2a\u8eab\u4efd\u7684\u6743\u9650\u65f6\uff0c\u6bcf\u4e2a\u8eab\u4efd\u4e4b\u95f4\u9700\u8981\u901a\u8fc7\u82f1\u6587\u9017\u53f7\u5206\u5f00\u3002\n\u5728\u6743\u9650\u8bbe\u7f6e\u4e2d\uff0c\u5982\u679c\u6709\u4e24\u90e8\u5206\u6743\u9650\u4e00\u6837\u5219\u53ef\u4ee5\u5408\u5728\u4e00\u8d77\u5199\uff0c\u5982<\/pre>\n\n\n\n
    chmod u=rwx,g=rwx\n\u7b49\u4ef7\u4e8e\uff1a\nchmod ug=rwx<\/pre>\n\n\n\n
    \u76f8\u5173\u53c2\u6570\u603b\u7ed3<\/p>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    4\u3001\u6587\u4ef6\u6216\u6587\u4ef6\u5939\u6743\u9650\u8bbe\u7f6e\uff08\u6570\u5b57\uff09<\/strong><\/p>\n\n\n\n
    \u5728\u6280\u672f\u7f51\u7ad9\u4e0a\u7ecf\u5e38\u4f1a\u770b\u5230\u7c7b\u4f3c\u4e8e chmod 777 a.txt \u8fd9\u6837\u7684\u547d\u4ee4\uff0c\u8fd9\u79cd\u5f62\u5f0f\u79f0\u4e4b\u4e3a\u6570\u5b57\u5f62\u5f0f\u6743\u9650\u3002<\/p>\n\n\n\n
    \u6587\u4ef6\u6743\u9650\u4e0e\u6570\u5b57<\/strong>\u7684\u5bf9\u5e94\u5173\u7cfb\uff0c\u4f1a\u53d1\u73b0\u6ca1\u67097<\/strong>\u8fd9\u4e2a\u6570\u5b57<\/p>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    777 \uff1a\n\u7b2c\u4e00\u4e2a\u6570\u5b577\uff0c\u4ee3\u8868\u6587\u4ef6\u62e5\u6709\u8005\u6743\u9650\n\u7b2c\u4e8c\u4e2a\u6570\u5b577\uff0c\u4ee3\u8868\u6587\u4ef6\u6240\u5c5e\u7ec4\u5185\u7528\u6237\u6743\u9650\n\u7b2c\u4e09\u4e2a\u6570\u5b577\uff0c\u4ee3\u8868\u5176\u4ed6\u7528\u6237\u6743\u9650\n\nrwx = 4 + 2 + 1 = 7\nrw = 4 + 2 = 6\nrx = 4 + 1 = 5<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u6848\u4f8b1\uff1a\u7ed9readme.txt\u8bbe\u7f6e\u6743\u9650\uff0c\u6587\u4ef6\u7684\u62e5\u6709\u8005rwx\uff0c\u7ec4\u5185\u7528\u6237rw\uff0c\u5176\u4ed6\u7528\u6237r<\/p>\n\n\n\n
    rwx = 7\nrw = 6\nr = 4\nchmod 764 readme.txt<\/pre>\n\n\n\n
    \u6848\u4f8b2\uff1a\u7ed9shop\u6587\u4ef6\u5939\u8bbe\u7f6e777\u6743\u9650<\/p>\n\n\n\n
    chmod -R 777 shop<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    5\u3001\u5947\u8469\u6743\u9650<\/strong><\/p>\n\n\n\n
    \u95ee\u9898\uff1a\u7528\u8d85\u7ea7\u7ba1\u7406\u5458\u8bbe\u7f6e\u6587\u6863\u7684\u6743\u9650\u547d\u4ee4\u662f chmod -R 731 shop\uff0c\u8bf7\u95ee\u8fd9\u4e2a\u547d\u4ee4\u6709\u6ca1\u6709\u4ec0\u4e48\u4e0d\u5408\u7406\u7684\u5730\u65b9\uff1f<\/p>\n\n\n\n
    \u5206\u6790\uff1a\u5bf9731\u6743\u9650\u8fdb\u884c\u62c6\u89e3<\/p>\n\n\n\n
    7 = 4 + 2 + 1 = rwx\n3 = 2 + 1 = wx\n1 = x<\/pre>\n\n\n\n
    \u95ee\u9898\u5728\u6743\u9650731\u4e2d\u76843\u6743\u9650\uff0c3\u8868\u793a\u5199+\u6267\u884c\u6743\u9650\uff0c\u4f46\u662f\u5199\u53c8\u5fc5\u987b\u9700\u8981\u80fd\u6253\u5f00\u4e4b\u540e\u624d\u53ef\u4ee5\u5199\uff0c\u56e0\u6b64\u5fc5\u987b\u9700\u8981\u5177\u5907\u53ef\u8bfb\u6743\u9650\uff0c\u56e0\u6b64\u6b64\u6743\u9650\u8bbe\u7f6e\u4e0d\u5408\u7406\u3002<\/p>\n\n\n\n
    \u6ce8\uff1a\u5b9e\u9645\u5de5\u4f5c\u4e2d\uff0c\u5927\u5bb6\u5728\u8bbe\u7f6e\u6743\u9650\u65f6\u4e00\u5b9a\u4e0d\u8981\u8bbe\u7f6e\u8fd9\u79cd”\u5947\u8469\u6743\u9650”\u3002<\/p>\n\n\n\n
    \u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u5355\u72ec\u51fa\u73b02\u30013\u7684\u6743\u9650\u6570\u5b57\u90fd\u662f\u6709\u95ee\u9898\u7684\u6743\u9650\u3002<\/p>\n\n\n\n
    6\u3001\u7ec3\u4e60<\/strong><\/p>\n\n\n\n
    1\uff09\u4f7f\u7528root \u7528\u6237\u8bbe\u7f6e\u6587\u4ef6\u5939\/root\/shop \u7684\u6743\u9650\u4e3a\uff1a\u5c5e\u4e3b\u5168\u90e8<\/strong>\u6743\u9650\uff0c\u5c5e\u7ec4\u62e5\u6709\u8bfb\u548c\u6267\u884c<\/strong>\u6743\u9650\uff0c\u5176\u4ed6\u7528\u6237\u6ca1\u6709<\/strong>\u6743\u9650\uff08\u4f7f\u7528\u6570\u5b57\u6743\u9650\u7684\u5f62\u5f0f\u8bbe\u7f6e\uff09<\/p>\n\n\n\n
    chmod -R 750 \/root\/shop<\/pre>\n\n\n\n
    2\uff09\u8bf7\u7f6e\u6587\u4ef6\/root\/readme.txt \u7684\u6743\u9650\uff0c\u6743\u9650\u8981\u6c42\u4e3a\uff1a\u5c5e\u4e3b\uff08\u6587\u4ef6\u62e5\u6709\u8005\uff09\u62e5\u6709\u5168\u90e8<\/strong>\u6743\u9650\uff0c\u5c5e\u7ec4\uff08\u6240\u5c5e\u7528\u6237\u7ec4\uff09\u8981\u6c42\u53ef\u4ee5\u8bfb\u5199<\/strong>\uff0c\u5176\u4ed6\u7528\u6237\u53ea\u8bfb<\/strong>\uff0c\u8981\u6c42\u4f7f\u7528\u6570\u5b57\u5f62\u5f0f\uff1b<\/p>\n\n\n\n
    chmod 764 \/root\/readme.txt<\/pre>\n\n\n\n
    3\uff09\u8bf7\u8bbe\u7f6e\/root\/email.doc\u6743\u9650\uff0c\u6743\u9650\u8981\u6c42\u53ea\u6709\u5c5e\u4e3b\u53ef\u4ee5\u8bfb\u5199<\/strong>\uff0c\u9664\u6b64\u4e4b\u5916\u4efb\u4f55\u4eba\u6ca1\u6709<\/strong>\u6743\u9650\uff1b<\/p>\n\n\n\n
    chmod 600 \/root\/email.doc<\/pre>\n\n\n\n
    7\u3001\u7279\u6b8a\u6743\u9650\u8bf4\u660e<\/strong><\/p>\n\n\n\n
    \u5728Linux \u4e2d\uff0c\u5982\u679c\u8981\u5220\u9664\u4e00\u4e2a\u6587\u4ef6\uff0c\u4e0d\u662f\u770b\u6587\u4ef6\u6709\u6ca1\u6709\u5bf9\u5e94\u7684\u6743\u9650\uff0c\u800c\u662f\u770b\u6587\u4ef6\u6240\u5728\u7684\u76ee\u5f55\u662f\u5426\u6709\u5199\u6743\u9650\uff0c\u5982\u679c\u6709\u624d\u53ef\u4ee5\u5220\u9664\uff08\u540c\u65f6\u5fc5\u987b\u5177\u5907\u6267\u884c\u6743\u9650\uff09\u3002<\/p>\n\n\n\n
    \/shell\/readme.txt\n\u60f3\u8981\u5220\u9664readme.txt\u6587\u4ef6\uff0c\u5fc5\u987b\u8981\u5bf9shell\u76ee\u5f55\u5177\u6709\u53ef\u5199\u6743\u9650\uff0c\u5426\u5219\u6587\u4ef6\u65e0\u6cd5\u5220\u9664<\/pre>\n\n\n\n
    \u4e09\u3001\u6587\u4ef6\u62e5\u6709\u8005\u4ee5\u53ca\u6587\u4ef6\u6240\u5c5e\u7ec4\u8bbe\u7f6e<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    \u6587\u4ef6\u62e5\u6709\u8005\uff1a\u5c5e\u4e3b<\/p>\n\n\n\n
    \u6587\u4ef6\u6240\u5c5e\u7ec4\uff1a\u5c5e\u7ec4<\/p>\n\n\n\n
    1\u3001\u5c5e\u4e3b\u4e0e\u5c5e\u7ec4<\/strong><\/p>\n\n\n\n
    \u5c5e\u4e3b\uff1a\u6240\u5c5e\u7684\u7528\u6237\uff0c\u6587\u6863\u6240\u6709\u8005\uff0c\u8fd9\u662f\u4e00\u4e2a\u8d26\u6237\uff0c\u662f\u4e00\u4e2a\u4eba\u3002<\/p>\n\n\n\n
    \u5c5e\u7ec4\uff1a\u6240\u5c5e\u7684\u7528\u6237\u7ec4\uff0c\u8fd9\u662f\u4e00\u4e2a\u7ec4\u3002<\/p>\n\n\n\n
    2\u3001\u6587\u4ef6\u62e5\u6709\u8005\u4e0e\u6240\u5c5e\u7ec4\u7684\u67e5\u770b<\/strong><\/p>\n\n\n\n
    ls -l\n\u6216\nll<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    3\u3001\u4e86\u89e3\u6587\u4ef6\u7684\u62e5\u6709\u8005\u4e0e\u6587\u4ef6\u6240\u5c5e\u7ec4\u6765\u6e90<\/strong><\/p>\n\n\n\n
    \u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u6bcf\u4e2a\u6587\u4ef6\u90fd\u662f\u7531Linux\u7cfb\u7edf\u7528\u6237\u521b\u5efa\u7684\uff0c\u6bcf\u4e2a\u7528\u6237\u90fd\u5177\u6709\u4e00\u4e2a\u7528\u6237\u540d\u79f0\u4ee5\u53ca\u4e00\u4e2a\u4e3b\u7ec4\u7684\u6982\u5ff5\u3002<\/p>\n\n\n\n
    su - zhengyquan\ntouch readme.txt<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u8c01\u521b\u5efa\u4e86\u6587\u4ef6\uff0c\u9ed8\u8ba4\u5176\u5c31\u662f\u6587\u4ef6\u7684\u62e5\u6709\u8005\u3002\u7528\u6237\u5c5e\u4e8e\u54ea\u4e2a\u7ec4\uff0c\u5c31\u79f0\u8fd9\u4e2a\u7ec4\u4e3a\u6587\u4ef6\u7684\u6240\u5c5e\u7ec4\u3002<\/pre>\n\n\n\n
    4\u3001\u4e3a\u4ec0\u4e48\u9700\u8981\u66f4\u6539\u6587\u4ef6\u62e5\u6709\u8005\u4e0e\u6240\u5c5e\u7ec4<\/strong><\/p>\n\n\n\n
    \u4e00\u4e2a\u8d22\u52a1\u8868\u683c\uff0c\u4ee5\u524d\u7531lishi\u8fdb\u884c\u66f4\u65b0\uff0c\u5979\u6709\u8bfb\u5199\u6743\u9650\uff0c\u73b0\u5728lishi\u53bb\u963f\u62c9\u5584\u6c99\u6f20\u627ezhangsan\u4e86\uff0c\u6539\u6743\u9650\u6ca1\u7528\uff0c\u9700\u8981\u628a\u5c5e\u4e3b\u6539\u6210wangwu\uff0c\u7531wangwu\u66f4\u65b0\u3002<\/p>\n\n\n\n
    5\u3001\u6587\u4ef6\u62e5\u6709\u8005\u8bbe\u7f6e<\/strong><\/p>\n\n\n\n
    \u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n
    chown [\u9009\u9879] \u65b0\u6587\u4ef6\u62e5\u6709\u8005\u540d\u79f0 \u6587\u4ef6\u540d\u79f0\n\u9009\u9879\u8bf4\u660e\uff1a\n-R \uff1a\u4ee3\u8868\u9012\u5f52\u4fee\u6539\uff0c\u4e3b\u8981\u9488\u5bf9\u6587\u4ef6\u5939\n#ch = change \uff0cown = owner<\/pre>\n\n\n\n
    \u6848\u4f8b1\uff1a\u628a \/root\/readme.txt\u6587\u4ef6\u7684\u62e5\u6709\u8005\u66f4\u6539\u4e3a zhengyquan<\/p>\n\n\n\n
    chown zhengyquan \/root\/readme.txt<\/pre>\n\n\n\n
    \u6848\u4f8b2\uff1a\u628a \/root\/shop\u6587\u4ef6\u5939\u7684\u62e5\u6709\u8005\u66f4\u6539\u4e3a linuxuser<\/p>\n\n\n\n
    chown -R linuxuser \/root\/shop<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    6\u3001\u6587\u4ef6\u6240\u5c5e\u7ec4\u7684\u8bbe\u7f6e<\/strong><\/p>\n\n\n\n
    \u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n
    chgrp [\u9009\u9879] \u65b0\u6587\u4ef6\u6240\u5c5e\u7ec4\u540d\u79f0 \u6587\u4ef6\u540d\u79f0\n\u9009\u9879\u8bf4\u660e\uff1a\n-R : \u4ee3\u8868\u9012\u5f52\u4fee\u6539\uff0c\u4e3b\u8981\u9488\u5bf9\u6587\u4ef6\u5939\n#ch = change , grp = group => chgrp<\/pre>\n\n\n\n
    \u6848\u4f8b1\uff1a\u628a \/root\/readme.txt\u6587\u4ef6\u7684\u6240\u5c5e\u7ec4\u540d\u79f0\u66f4\u6539\u4e3a zhengyquan<\/p>\n\n\n\n
    chgrp zhengyquan \/root\/readme.txt<\/pre>\n\n\n\n
    \u6848\u4f8b2\uff1a\u628a \/root\/shop\u6587\u4ef6\u5939\u7684\u6240\u5c5e\u7ec4\u540d\u79f0\u4e5f\u66f4\u6539\u4e3a zhengyquan<\/p>\n\n\n\n
    chgrp -R zhengyquan \/root\/shop<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    7\u3001chown\u540c\u65f6\u4fee\u6539\u5c5e\u4e3b\u4e0e\u5c5e\u7ec4\uff08\u91cd\u70b9\uff09<\/strong><\/p>\n\n\n\n
    \u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n
    chown [\u9009\u9879] \u6587\u4ef6\u62e5\u6709\u8005\u540d\u79f0:\u6587\u4ef6\u6240\u5c5e\u7ec4\u540d\u79f0 \u6587\u4ef6\u540d\u79f0\n\u6216\nchown [\u9009\u9879] \u6587\u4ef6\u62e5\u6709\u8005\u540d\u79f0.\u6587\u4ef6\u6240\u5c5e\u7ec4\u540d\u79f0 \u6587\u4ef6\u540d\u79f0\n\n\u9009\u9879\u8bf4\u660e\uff1a\n-R : \u4ee3\u8868\u9012\u5f52\u4fee\u6539\uff0c\u4e3b\u8981\u9488\u5bf9\u6587\u4ef6\u5939<\/pre>\n\n\n\n
    \u6848\u4f8b1\uff1areadme.txt\u6587\u4ef6\u7684\u62e5\u6709\u8005\u4e0e\u6240\u5c5e\u7ec4\u540c\u65f6\u66f4\u6539\u4e3aroot<\/p>\n\n\n\n
    chown root:root readme.txt\n\u6216\nchown root.root readme.txt<\/pre>\n\n\n\n
    \u6848\u4f8b2\uff1a\u66f4\u6539shop\u76ee\u5f55\u7684\u62e5\u6709\u8005\u4ee5\u53ca\u6240\u5c5e\u7ec4\u4e3aroot<\/p>\n\n\n\n
    chown -R root:root shop\n\u6216\nchown -R root.root shop<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u56db\u3001\u7279\u6b8a\u6743\u9650\uff08\u6269\u5c55\uff09<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    1\u3001\u8bbe\u7f6e\u4f4dS\uff08\u9488\u5bf9\u4e8c\u8fdb\u5236\u6587\u4ef6\uff09<\/strong><\/p>\n\n\n\n
    1.1 \u8bbe\u7f6e\u4f4dS\u7684\u4f5c\u7528<\/h5>\n\n\n\n
    \u4f5c\u7528\uff1a\u4e3a\u4e86\u8ba9\u4e00\u822c\u4f7f\u7528\u8005\u4e34\u65f6\u5177\u6709\u8be5\u6587\u4ef6\u6240\u5c5e\u4e3b\/\u7ec4\u7684\u6267\u884c\u6743\u9650\u3002<\/p>\n\n\n\n
    \u4e3b\u8981\u9488\u5bf9\u4e8c\u8fdb\u5236\u6587\u4ef6\uff08\u547d\u4ee4\uff09<\/p>\n\n\n\n
    \u4f8b\u5982\uff1a\/usr\/bin\/passwd\u5728\u6267\u884c\u5b83\u7684\u65f6\u5019\u9700\u8981\u53bb\u4fee\u6539\/etc\/passwd\u548c\/etc\/shadow\u7b49\u6587\u4ef6\uff0c\u8fd9\u4e9b\u6587\u4ef6\u9664\u4e86root\u5916\uff0c\u5176\u4ed6\u7528\u6237\u90fd\u6ca1\u6709\u5199\u6743\u9650\uff0c\u4f46\u662f\u53c8\u4e3a\u4e86\u80fd\u8ba9\u666e\u901a\u7528\u6237\u4fee\u6539\u81ea\u5df1\u7684\u5bc6\u7801\uff0c\u8be5\u600e\u4e48\u529e\u5462\uff1f<\/p>\n\n\n\n
    \u7b54\uff1a\u53ef\u4ee5\u4e34\u65f6\u8ba9\u4ed6\u4eec\u5177\u6709root\u7684\u6743\u9650\uff0c\u800c\u8fd9\u4e2as\u6743\u9650\u5c31\u662f\u7528\u6765\u5b8c\u6210\u8fd9\u4e2a\u7279\u6b8a\u4efb\u52a1\u7684\u3002s\u6743\u9650\u53ea\u80fd\u5e94\u7528\u5728\u4e8c\u8fdb\u5236\u7684\u53ef\u6267\u884c\u6587\u4ef6\u4e0a\u3002<\/p>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    whereis\u547d\u4ee4\uff0c\u4e3b\u8981\u529f\u80fd\u662f\u67e5\u8be2\u67d0\u4e2a\u547d\u4ee4\u6240\u5728\u7684\u8def\u5f84\uff0c\u57fa\u672c\u8bed\u6cd5 => whereis passwd<\/pre>\n\n\n\n
    wangwu\u666e\u901a\u8d26\u53f7 => \u6267\u884c\/usr\/bin\/passwd => \u4fee\u6539\/etc\/shadow\u6587\u4ef6\uff08\u5b58\u653e\u7528\u6237\u7684\u5bc6\u7801\uff09<\/p>\n\n\n\n
    \/etc\/shadow\u6587\u4ef6\u6bd4\u8f83\u7279\u6b8a\uff0c\u5176\u6743\u9650\u4e3a--- --- ---\uff08000\uff09\uff0c\u9664root\u5916\uff0c\u5176\u4ed6\u4eba\u90fd\u6ca1\u6709\u6743\u9650<\/pre>\n\n\n\n
    1.2 \u53bb\u9664S\u4f4d\u6743\u9650<\/p>\n\n\n\n
    chmod u-s \/usr\/bin\/passwd \n\u6216\u8005\nchmod 0755 \/usr\/bin\/passwd<\/pre>\n\n\n\n
    1.3 \u6dfb\u52a0S\u4f4d\u6743\u9650<\/p>\n\n\n\n
    chmod u+s \/usr\/bin\/passwd\n\u6216\u8005\nchmod 4755 \/usr\/bin\/passwd<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    2\u3001\u6cbe\u6ede\u4f4dT\uff08\u9488\u5bf9\u6587\u4ef6\u5939\uff09<\/strong><\/p>\n\n\n\n
    2.1 \u7c98\u6ede\u4f4d\u4f5c\u7528<\/p>\n\n\n\n
    \u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n
    chmod -R o+t \u6587\u4ef6\u5939\u7684\u540d\u79f0\n\u6216\nchmod -R 1777 \u6587\u4ef6\u5939\u7684\u540d\u79f0<\/pre>\n\n\n\n
    \u4e3b\u8981\u529f\u80fd\uff1a\u53ea\u5141\u8bb8\u6587\u4ef6\u7684\u521b\u5efa\u8005\u548croot\u7528\u6237\u5220\u9664\u6587\u4ef6\uff08\u9632\u6b62\u8bef\u5220\u9664\u6743\u9650\u4f4d\uff09<\/p>\n\n\n\n
    \u6848\u4f8b1\uff1a\/tmp\u6587\u4ef6\u5939\uff0c\u62e5\u6709\u6700\u9ad8\u6743\u9650777\uff0c\u6bd4\u5982 zhengyquan\u521b\u5efa\u4e86\u4e00\u4e2a zhengyquan.txt\u6587\u4ef6\u5728\u6b64 \/tmp\u76ee\u5f55\uff0c linuxuser\u7528\u6237\u53ef\u4ee5\u5bf9\u5176\u8fdb\u884c\u5220\u9664\u64cd\u4f5c\uff0c\u8fd9\u79cd\u663e\u7136\u4e0d\u592a\u5408\u9002\u3002(\u4ee3\u7801\u89c1\u6700\u540e\u7684\u56fe)<\/p>\n\n\n\n
    7 = r + w + x = \u53ef\u8bfb\u3001\u53ef\u5199\u3001\u53ef\u6267\u884c<\/pre>\n\n\n\n
    \u6848\u4f8b2\uff1a\u4f7f\u7528ls -l\u547d\u4ee4\u67e5\u770b\/tmp\u76ee\u5f55\u6743\u9650<\/p>\n\n\n\n
    ls -ld \/tmp\n\u6216\nll -d \/tmp<\/pre>\n\n\n\n
    2.2 \u79fb\u9664\u7c98\u6ede\u4f4d<\/p>\n\n\n\n
    chmod -R o-t \/tmp\n\u6216\nchmod -R 0777 \/tmp<\/pre>\n\n\n\n
    2.3 \u6dfb\u52a0\u7c98\u6ede\u4f4d<\/p>\n\n\n\n
    chmod -R o+t \/tmp\n\u6216\nchmod -R 1777 \/tmp<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u5bf9\u4e8e\u7c98\u6ede\u4f4d\uff0c\u7406\u89e3\u5982\u4e0b\u4ee3\u7801\uff0c\u5c31ok\u4e86\u3002<\/p>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u4e94\u3001ACL\u8bbf\u95ee\u63a7\u5236<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    1\u3001\u4e3a\u4ec0\u4e48\u9700\u8981ACL<\/strong><\/p>\n\n\n\n
    ACL\uff0c\u662f Access Control List\uff08\u8bbf\u95ee\u63a7\u5236\u5217\u8868\uff09\u7684\u7f29\u5199\uff0c\u5728 Linux \u7cfb\u7edf\u4e2d\uff0c ACL \u53ef\u5b9e\u73b0\u5bf9\u5355\u4e00\u7528\u6237\u8bbe\u5b9a\u8bbf\u95ee\u6587\u4ef6\u7684\u6743\u9650\u3002<\/p>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
     \u6269\u5c55\uff1aACL\u6743\u9650\u53ef\u4ee5\u9488\u5bf9\u67d0\u4e2a\u7528\u6237\uff0c\u4e5f\u53ef\u4ee5\u9488\u5bf9\u67d0\u4e2a\u7ec4\u3002ACL\u4f18\u52bf\u5c31\u662f\u8ba9\u6743\u9650\u63a7\u5236\u66f4\u52a0\u7684\u7cbe\u51c6\u3002<\/pre>\n\n\n\n
    2\u3001\u83b7\u53d6\u67d0\u4e2a\u6587\u4ef6\u7684ACL\u6743\u9650<\/strong><\/p>\n\n\n\n
    \u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n
    getfacl \u6587\u4ef6\u6216\u76ee\u5f55\u540d\u79f0<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    3\u3001\u7ed9\u67d0\u4e2a\u6587\u4ef6\u8bbe\u7f6eACL\u6743\u9650<\/strong><\/p>\n\n\n\n
    setfacl [\u9009\u9879] \u6587\u4ef6\u6216\u76ee\u5f55\u540d\u79f0\n\u9009\u9879\u8bf4\u660e\uff1a\n-m \uff1a \u4fee\u6539acl\u7b56\u7565\n-x \uff1a \u53bb\u6389\u67d0\u4e2a\u7528\u6237\u6216\u8005\u67d0\u4e2a\u7ec4\u7684\u6743\u9650\n-b \uff1a \u5220\u9664\u6240\u6709\u7684acl\u7b56\u7565\n-R  \uff1a\u9012\u5f52,\u901a\u5e38\u7528\u5728\u6587\u4ef6\u5939<\/pre>\n\n\n\n
    \u6848\u4f8b1\uff1a\u9488\u5bf9readme.txt\u6587\u4ef6\u7ed9linuxuser\u8bbe\u7f6e\u4e00\u4e2a\u6743\u9650=>\u53ef\u8bfb<\/p>\n\n\n\n
    setfacl -m u:linuxuser:r readme.txt\t=>  \u9488\u5bf9\u67d0\u4e2a\u7528\u6237\u5f00\u901aACL\u6743\u9650<\/pre>\n\n\n\n
    \u6848\u4f8b2\uff1a\u9488\u5bf9shop\u6587\u4ef6\u5939\u7ed9 zhengyquan\u7ec4\u8bbe\u7f6e\u4e00\u4e2a\u6743\u9650=>\u53ef\u8bfb\u53ef\u5199\u6743\u9650rw<\/p>\n\n\n\n
    setfacl -R -m g:zhengyquan:rw shop\t=> \t\u9488\u5bf9\u67d0\u4e2a\u7528\u6237\u7ec4\u5f00\u901aACL\u6743\u9650<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u6848\u4f8b3\uff1a\u628alinuxuser\u7528\u6237\u6743\u9650\u4ecereadme.txt\u4e2d\u79fb\u9664\u6389<\/p>\n\n\n\n
    setfacl -x u:linuxuser readme.txt<\/pre>\n\n\n\n
    \u6848\u4f8b4\uff1a\u628a zhengyquan\u7528\u6237\u7ec4\u6743\u9650\u4eceshop\u4e2d\u79fb\u9664\u6389<\/p>\n\n\n\n
    setfacl -x -R g:zhengyquan shop<\/pre>\n\n\n\n
    \u6848\u4f8b5\uff1a\u628areadme.txt\u6587\u4ef6\u4e2d\u7684\u6240\u6709ACL\u6743\u9650\u5168\u90e8\u79fb\u9664<\/p>\n\n\n\n
    setfacl -b readme.txt<\/pre>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    \u516d\u3001umask\uff08\u4e86\u89e3\uff0c\u4e0d\u8981\u66f4\u6539\uff01\uff01\uff09<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    1\u3001\u4ec0\u4e48\u662fumask<\/strong><\/p>\n\n\n\n
    umask\u8868\u793a\u521b\u5efa\u6587\u4ef6\u65f6\u7684\u9ed8\u8ba4\u6743\u9650\uff08\u5373\u521b\u5efa\u6587\u4ef6\u65f6\u4e0d\u9700\u8981\u8bbe\u7f6e\u800c\u5929\u751f\u7684\u6743\u9650\uff09<\/p>\n\n\n\n
    root\u7528\u6237\u4e0b\uff0ctouch a \uff0c\u6587\u4ef6a\u7684\u9ed8\u8ba4\u6743\u9650\u662f644<\/p>\n\n\n\n
    \u666e\u901a\u7528\u6237\u4e0b\uff0ctouch b \uff0c\u6587\u4ef6b\u7684\u9ed8\u8ba4\u6743\u9650\u662f664<\/p>\n\n\n\n
    644\u548c664\u6211\u4eec\u5e76\u6ca1\u6709\u8bbe\u7f6e\uff0c\u5176\u4e2d\u7684\u5173\u952e\u56e0\u7d20\u5c31\u662fumask<\/strong><\/p>\n\n\n\n
    \u6269\u5c55\uff1a\u5b9e\u9645\u4e0a\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u666e\u901a\u6587\u4ef6\u6700\u9ad8\u6743\u9650666\u3002\u800c\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u5939\u5176\u6700\u9ad8\u6743\u9650777\n\n\u5b9e\u9645\u6587\u4ef6\u6743\u9650 = \u6700\u9ad8\u6743\u9650 - umask\u7684\u503c<\/pre>\n\n\n\n
    2\u3001\u83b7\u53d6\u7528\u6237\u7684umask\u503c<\/strong><\/p>\n\n\n\n
    umask\n\n0022\n\u6ce8\uff1a0022\u4e2d\u7b2c\u4e00\u4f4d0\u4ee3\u8868\u7279\u6b8a\u6743\u9650\u4f4d\uff0c\u53ef\u4ee5\u4e0d\u8bbe\u7f6e\u3002\numask\u7684\u9ed8\u8ba4\u503c\uff0c\u5728root\u548c\u666e\u901a\u7528\u6237\u4e0b\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u5206\u522b\u662f022\u548c002<\/pre>\n\n\n\n
    \u4e3a\u4ec0\u4e48\u6587\u4ef6\u5728root\u4e0b\u521b\u5efa\u5c31\u662f644\uff0c\u5728 zhengyquan\u4e0b\u5c31\u662f664<\/p>\n\n\n\n
    root : 666 – 022 = 644<\/p>\n\n\n\n
    zhengyquan\uff1a666 – 002 = 664<\/p>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    3\u3001\u4fee\u6539umask\u503c\uff08\u4e00\u5b9a\u4e0d\u8981\u6539\uff09<\/strong><\/p>\n\n\n\n
    3.1 \u4e34\u65f6\u4fee\u6539\uff08\u91cd\u542f\u540e\u5931\u6548\uff09<\/p>\n\n\n\n
    umask 002<\/pre>\n\n\n\n
    777 – 002 = 775<\/p>\n\n\n\n
    3.2 \u6c38\u4e45\u4fee\u6539<\/p>\n\n\n\n
    vim ~\/.bashrc \n\u2460 \u5728\u6587\u4ef6\u672b\u5c3e\u6dfb\u52a0umask 002\n\u2461 \u4fdd\u5b58\u9000\u51fa \n\u2462 su\u5207\u6362\u7528\u6237\u5219\u7acb\u5373\u751f\u6548<\/pre>\n","protected":false},"excerpt":{"rendered":"
    \u8f6c\u8f7d\uff1ahttps:\/\/cloud.tencent.com\/developer\/article\/2387349  […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/13542"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13542"}],"version-history":[{"count":4,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/13542\/revisions"}],"predecessor-version":[{"id":13573,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/13542\/revisions\/13573"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}