{"id":34098,"date":"2026-10-27T16:00:00","date_gmt":"2026-10-27T08:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=34098"},"modified":"2026-10-23T13:29:33","modified_gmt":"2026-10-23T05:29:33","slug":"file-permission-755-644","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/file-permission-755-644\/","title":{"rendered":"\u7f51\u7ad9\u6587\u4ef6\u6743\u9650\u5b89\u5168\u914d\u7f6e\uff1a755 \u4e0e 644 \u7684\u9002\u7528\u8303\u56f4\u4e0e\u8bef\u8bbe\u6392\u67e5"},"content":{"rendered":"<p>\u7f51\u7ad9\u7a81\u7136\u6253\u4e0d\u5f00\u62a5 403\uff0c\u540e\u53f0\u63d0\u793a\u66f4\u65b0\u6210\u529f\u9875\u9762\u5374\u8fd8\u662f\u65e7\u5185\u5bb9\uff0c\u6216\u8005\u7f51\u7ad9\u88ab\u5165\u4fb5\u540e\u51fa\u73b0\u4e86\u53ef\u6267\u884c\u7684\u6076\u610f\u811a\u672c\u2014\u2014\u8fd9\u4e09\u7c7b\u95ee\u9898\u5f88\u591a\u65f6\u5019\u6839\u6e90\u662f\u540c\u4e00\u4e2a\uff1a\u6587\u4ef6\u6743\u9650\uff08\u5373\u64cd\u4f5c\u7cfb\u7edf\u89c4\u5b9a&#8221;\u8c01\u80fd\u8bfb\u3001\u8c01\u80fd\u5199\u3001\u8c01\u80fd\u6267\u884c\u67d0\u4e2a\u6587\u4ef6&#8221;\u7684\u89c4\u5219\uff09\u8bbe\u7f6e\u9519\u4e86\u3002\u672c\u6587\u4f1a\u628a 755 \u548c 644 \u8fd9\u4e24\u7ec4\u6700\u5e38\u89c1\u7684\u6743\u9650\u6570\u5b57\u8bb2\u6e05\u695a\uff1a\u5b83\u4eec\u5404\u81ea\u9002\u5408\u7528\u5728\u4ec0\u4e48\u5730\u65b9\uff0c\u8bbe\u9519\u4e86\u4f1a\u51fa\u73b0\u4ec0\u4e48\u75c7\u72b6\uff0c\u4ee5\u53ca\u5982\u4f55\u4e00\u6b65\u6b65\u627e\u51fa\u88ab\u8bef\u8bbe\u7684\u6587\u4ef6\uff0c\u8ddf\u7740\u6392\u67e5\u4e00\u904d\u5927\u7ea6\u53ea\u9700\u5341\u51e0\u5206\u949f\u3002<\/p>\n<h2>755 \u548c 644 \u5230\u5e95\u662f\u4ec0\u4e48\u610f\u601d<\/h2>\n<p>\u8981\u7406\u89e3\u8fd9\u4e24\u7ec4\u6570\u5b57\uff0c\u5148\u8981\u770b\u61c2 Linux \u6743\u9650\u7684\u4e09\u6bb5\u7ed3\u6784\u3002\u6bcf\u6b21\u6267\u884c <code>ls -l<\/code>\uff0c\u4f60\u4f1a\u770b\u5230\u7c7b\u4f3c <code>rwxr-xr-x<\/code> \u7684\u5b57\u7b26\u4e32\uff0c\u5b83\u5206\u6210\u4e09\u7ec4\uff1a\u7b2c\u4e00\u7ec4\u662f\u6587\u4ef6\u6240\u6709\u8005\uff08owner\uff09\u7684\u6743\u9650\uff0c\u7b2c\u4e8c\u7ec4\u662f\u6240\u5c5e\u7ec4\uff08group\uff09\u7684\u6743\u9650\uff0c\u7b2c\u4e09\u7ec4\u662f\u5176\u4ed6\u7528\u6237\uff08others\uff09\u7684\u6743\u9650\u3002<code>r<\/code> \u4ee3\u8868\u53ef\u8bfb\uff08\u503c\u4e3a 4\uff09\uff0c<code>w<\/code> \u4ee3\u8868\u53ef\u5199\uff08\u503c\u4e3a 2\uff09\uff0c<code>x<\/code> \u4ee3\u8868\u53ef\u6267\u884c\uff08\u503c\u4e3a 1\uff09\uff0c\u628a\u6bcf\u7ec4\u4e09\u4e2a\u6570\u5b57\u76f8\u52a0\uff0c\u5c31\u5f97\u5230\u4e86\u6211\u4eec\u719f\u6089\u7684\u6743\u9650\u6570\u5b57\u3002<\/p>\n<p>\u6309\u8fd9\u4e2a\u7b97\u6cd5\uff0c755 \u5c55\u5f00\u5c31\u662f <code>rwxr-xr-x<\/code>\uff1a\u6240\u6709\u8005\u53ef\u4ee5\u8bfb\u5199\u6267\u884c\uff0c\u7ec4\u548c\u5176\u4ed6\u4eba\u53ea\u80fd\u8bfb\u548c\u6267\u884c\u3002644 \u5c55\u5f00\u662f <code>rw-r--r--<\/code>\uff1a\u6240\u6709\u8005\u53ef\u4ee5\u8bfb\u5199\uff0c\u7ec4\u548c\u5176\u4ed6\u4eba\u53ea\u80fd\u8bfb\u3002<\/p>\n<p>\u653e\u5728\u7f51\u7ad9\u573a\u666f\u91cc\uff0c\u4e24\u8005\u7684\u5206\u5de5\u975e\u5e38\u660e\u786e\uff1a<\/p>\n<ul>\n<li><strong>\u76ee\u5f55\u7528 755<\/strong>\uff1a\u76ee\u5f55\u5fc5\u987b\u6709\u6267\u884c\u4f4d\u624d\u80fd\u88ab\u8fdb\u5165\u548c\u904d\u5386\uff0c\u6240\u4ee5\u76ee\u5f55\u4e00\u5f8b 755\uff0c\u5426\u5219\u5373\u4f7f\u6587\u4ef6\u6743\u9650\u6b63\u786e\uff0cWeb \u670d\u52a1\u8fdb\u7a0b\u4e5f\u65e0\u6cd5\u7a7f\u8fc7\u76ee\u5f55\u8bbf\u95ee\u5230\u6587\u4ef6\u3002<\/li>\n<li><strong>\u7f51\u7ad9\u9759\u6001\u6587\u4ef6\u7528 644<\/strong>\uff1aHTML\u3001CSS\u3001\u56fe\u7247\u3001JS \u8fd9\u7c7b\u6587\u4ef6\u53ea\u9700\u8981\u88ab\u8bfb\u53d6\uff0c\u6240\u6709\u8005\u4fdd\u7559\u5199\u6743\u9650\u7528\u4e8e\u66f4\u65b0\uff0c\u5176\u4ed6\u4eba\u53ea\u8bfb\uff0c\u9632\u6b62\u88ab\u7be1\u6539\u3002<\/li>\n<li><strong>PHP \u7b49\u811a\u672c\u6587\u4ef6\u4e5f\u7528 644<\/strong>\uff1aPHP \u7531 PHP-FPM\uff08FastCGI \u8fdb\u7a0b\u7ba1\u7406\u5668\uff09\u8fd9\u7c7b\u89e3\u91ca\u5668\u8fdb\u7a0b\u8bfb\u53d6\u6267\u884c\uff0c\u811a\u672c\u6587\u4ef6\u672c\u8eab\u4e0d\u9700\u8981\u5bf9 Web \u7528\u6237\u5f00\u653e\u6267\u884c\u4f4d\u3002<\/li>\n<li><strong>\u5c11\u6570\u7279\u6b8a\u6587\u4ef6\u624d\u9700\u8981\u66f4\u9ad8\u6743\u9650<\/strong>\uff1a\u6bd4\u5982\u67d0\u4e9b CLI \u5de5\u5177\u811a\u672c\u76f4\u63a5\u901a\u8fc7 <code>.\/script.sh<\/code> \u6267\u884c\uff0c\u624d\u9700\u8981\u6240\u6709\u8005\u5e26\u6267\u884c\u4f4d\uff1b\u5305\u542b\u6570\u636e\u5e93\u5bc6\u7801\u7684\u914d\u7f6e\u6587\u4ef6\uff08\u5982 <code>wp-config.php<\/code>\uff09\u53cd\u800c\u5efa\u8bae\u6536\u7d27\u5230 640 \u751a\u81f3 600\u3002<\/li>\n<\/ul>\n<p>\u6838\u5fc3\u7ed3\u8bba\u662f\uff1a<strong>&#8220;755 \u7ed9\u76ee\u5f55\u3001644 \u7ed9\u6587\u4ef6&#8221;\u662f\u7edd\u5927\u591a\u6570<a href=\"https:\/\/cn.hostease.com\/web-hosting\/\">\u5171\u4eab\u4e3b\u673a<\/a>\u548c LNMP \u67b6\u6784\u4e0b\u7684\u5b89\u5168\u57fa\u7ebf<\/strong>\u3002\u504f\u79bb\u8fd9\u4e2a\u57fa\u7ebf\u8981\u4e48\u5bfc\u81f4\u8bbf\u95ee\u5f02\u5e38\uff0c\u8981\u4e48\u6253\u5f00\u5b89\u5168\u7f3a\u53e3\u3002<\/p>\n<h2>\u6743\u9650\u8bef\u8bbe\u7684\u4e24\u7c7b\u5178\u578b\u75c7\u72b6<\/h2>\n<p>\u8bef\u8bbe\u6743\u9650\u7684\u540e\u679c\u5206\u4e24\u4e2a\u65b9\u5411\uff0c\u75c7\u72b6\u5b8c\u5168\u76f8\u53cd\uff0c\u6392\u67e5\u601d\u8def\u4e5f\u4e0d\u540c\u3002<\/p>\n<p><strong>\u7b2c\u4e00\u7c7b\uff1a\u6743\u9650\u8fc7\u4e25\uff0c\u7f51\u7ad9\u76f4\u63a5\u6253\u4e0d\u5f00\u3002<\/strong> \u6700\u5e38\u89c1\u7684\u662f\u628a\u76ee\u5f55\u8bbe\u6210 700 \u6216\u8005\u628a\u6587\u4ef6\u8bbe\u6210 600\uff0c\u4f46\u8fd0\u884c Web \u670d\u52a1\u7684\u7528\u6237\uff08\u4f8b\u5982 <code>www-data<\/code>\uff09\u4e0d\u662f\u6587\u4ef6\u6240\u6709\u8005\uff0c\u4e8e\u662f\u8bfb\u4e0d\u5230\u6587\u4ef6\uff0c\u524d\u53f0\u62a5 403 Forbidden\uff0c\u6216\u8005 WordPress \u4e3b\u9898\u3001\u63d2\u4ef6\u6837\u5f0f\u5168\u90e8\u4e22\u5931\u3002\u8fd8\u6709\u4e00\u79cd\u9690\u853d\u60c5\u51b5\uff1a\u8fc1\u79fb\u7f51\u7ad9\u65f6\u7528 root \u89e3\u538b\uff0c\u6240\u6709\u6587\u4ef6\u6240\u6709\u8005\u90fd\u53d8\u6210 root\uff0c\u6743\u9650\u6570\u5b57\u770b\u7740\u662f 755\/644\uff0c\u4f46 Web \u7528\u6237\u4e0d\u5728\u6240\u6709\u8005\u7ec4\u91cc\uff0c\u7167\u6837 403\u2014\u2014\u8fd9\u79cd\u60c5\u51b5\u8981\u770b\u6240\u6709\u8005\u800c\u4e0d\u662f\u6743\u9650\u6570\u5b57\u3002<\/p>\n<p><strong>\u7b2c\u4e8c\u7c7b\uff1a\u6743\u9650\u8fc7\u677e\uff0c\u7f51\u7ad9\u6210\u4e3a\u653b\u51fb\u8df3\u677f\u3002<\/strong> \u5178\u578b\u9519\u8bef\u662f\u56fe\u7701\u4e8b\u6267\u884c\u4e86 <code>chmod -R 777<\/code>\uff0c\u8ba9\u6240\u6709\u7528\u6237\u90fd\u80fd\u5199\u6240\u6709\u6587\u4ef6\u3002\u653b\u51fb\u8005\u53ea\u8981\u627e\u5230\u4e00\u4e2a\u53ef\u5199\u76ee\u5f55\uff08\u6bd4\u5982\u4e0a\u4f20\u76ee\u5f55\uff09\uff0c\u5c31\u80fd\u5199\u5165 <code>.php<\/code> \u7ed3\u5c3e\u7684 webshell\uff08\u4e00\u79cd\u53ef\u4ee5\u8fdc\u7a0b\u64cd\u63a7\u670d\u52a1\u5668\u7684\u6076\u610f\u811a\u672c\uff09\u5e76\u83b7\u5f97\u6267\u884c\u80fd\u529b\uff0c\u5b89\u5168\u626b\u63cf\u5de5\u5177\u62a5\u544a\u7684&#8221;\u9ad8\u5371\uff1a\u76ee\u5f55\u53ef\u5199&#8221;\u544a\u8b66\u7edd\u5927\u591a\u6570\u6e90\u4e8e\u6b64\u3002\u53e6\u4e00\u79cd\u8fc7\u677e\u60c5\u51b5\u662f\u7ed9 PHP \u6587\u4ef6\u52a0\u4e86\u7ec4\u6216\u5176\u4ed6\u4eba\u7684\u5199\u6743\u9650\uff0c\u540c\u673a\u7684\u5176\u4ed6\u79df\u6237\u5c31\u6709\u673a\u4f1a\u7be1\u6539\u4f60\u7684\u4ee3\u7801\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/file-permission-755-644-cover.webp\" alt=\"\u7f51\u7ad9\u6587\u4ef6\u6743\u9650\u5b89\u5168\u914d\u7f6e\u6982\u5ff5\u56fe\uff1a\u670d\u52a1\u5668\u76ee\u5f55\u7ed3\u6784\u4e0a\u7684\u9501\u5f62\u56fe\u6807\" loading=\"lazy\" \/><\/p>\n<p><strong>403\u3001\u6837\u5f0f\u4e22\u5931\u3001\u65e0\u6cd5\u4e0a\u4f20\uff0c\u5148\u6000\u7591&#8221;\u8fc7\u4e25&#8221;\uff1b\u88ab\u5165\u4fb5\u3001\u51fa\u73b0\u964c\u751f\u6587\u4ef6\u3001\u626b\u63cf\u544a\u8b66\uff0c\u5148\u6000\u7591&#8221;\u8fc7\u677e&#8221;\u3002<\/strong><\/p>\n<h2>\u8bef\u8bbe\u6392\u67e5\uff1a\u4ece\u5b9a\u4f4d\u5230\u4fee\u590d\u7684\u5b8c\u6574\u6d41\u7a0b<\/h2>\n<p>\u6392\u67e5\u6743\u9650\u95ee\u9898\u7528\u7cfb\u7edf\u81ea\u5e26\u547d\u4ee4\u5c31\u591f\u4e86\u3002\u4ee5\u7f51\u7ad9\u6839\u76ee\u5f55 <code>\/var\/www\/example.com<\/code> \u4e3a\u4f8b\uff0c\u6309&#8221;\u5148\u770b\u65b9\u5411\uff0c\u518d\u5b9a\u4f4d\u6587\u4ef6\uff0c\u6700\u540e\u6279\u91cf\u4fee\u590d&#8221;\u7684\u987a\u5e8f\u8d70\u3002<\/p>\n<p><strong>\u7b2c\u4e00\u6b65\uff1a\u786e\u8ba4\u8fd0\u884c Web \u670d\u52a1\u7684\u7528\u6237\u662f\u8c01\u3002<\/strong> \u6267\u884c <code>ps aux | grep -E 'nginx|php-fpm|apache'<\/code>\uff0c\u8f93\u51fa\u7b2c\u4e00\u5217\u5c31\u662f\u7528\u6237\u540d\uff0c\u5e38\u89c1\u7684\u662f <code>www-data<\/code> \u6216 <code>nginx<\/code>\u3002\u540e\u9762\u6240\u6709\u5224\u65ad\u90fd\u4ee5\u8fd9\u4e2a\u7528\u6237\u4e3a\u57fa\u51c6\u3002<\/p>\n<p><strong>\u7b2c\u4e8c\u6b65\uff1a\u627e\u51fa\u6240\u6709\u8005\u6216\u6743\u9650\u4e0d\u5bf9\u7684\u6587\u4ef6\u3002<\/strong> \u4fee\u590d\u8fc7\u4e25\u95ee\u9898\uff0c\u5148\u5217\u51fa\u6240\u6709\u4e0d\u5c5e\u4e8e Web \u7528\u6237\u7684\u6587\u4ef6\uff1a<\/p>\n<pre><code class=\"language-bash\">find \/var\/www\/example.com ! -user www-data -ls | head -30\n<\/code><\/pre>\n<p>\u4fee\u590d\u8fc7\u677e\u95ee\u9898\uff0c\u628a\u4e24\u7c7b\u9ad8\u5371\u6587\u4ef6\u5206\u522b\u627e\u51fa\u6765\uff1a<\/p>\n<pre><code class=\"language-bash\"># \u627e\u51fa\u6240\u6709 777 \u7684\u76ee\u5f55\u548c\u6587\u4ef6\nfind \/var\/www\/example.com -perm 777 -ls\n\n# \u627e\u51fa\u5bf9\u7ec4\u6216\u5176\u4ed6\u7528\u6237\u5f00\u653e\u5199\u6743\u9650\u7684\u6587\u4ef6\nfind \/var\/www\/example.com -perm \/go+w -type f -ls\n<\/code><\/pre>\n<p>\u5982\u679c\u67d0\u4e2a\u5177\u4f53\u9875\u9762 403\uff0c\u7528 <code>namei -l \/var\/www\/example.com\/path\/file.html<\/code> \u9010\u5c42\u67e5\u770b\u8def\u5f84\u4e0a\u6bcf\u4e2a\u76ee\u5f55\u7684\u6743\u9650\u548c\u6240\u6709\u8005\uff0c\u5f88\u591a&#8221;\u6743\u9650\u660e\u660e\u5bf9\u5374\u6253\u4e0d\u5f00&#8221;\u7684\u95ee\u9898\u90fd\u51fa\u5728\u8def\u5f84\u4e2d\u67d0\u4e00\u5c42\u76ee\u5f55\u4e0a\u3002<\/p>\n<p><strong>\u7b2c\u4e09\u6b65\uff1a\u6279\u91cf\u4fee\u6b63\u5230\u5b89\u5168\u57fa\u7ebf\u3002<\/strong> \u786e\u8ba4\u8981\u4fee\u7684\u6587\u4ef6\u8303\u56f4\u540e\uff0c\u4e24\u6761\u547d\u4ee4\u628a\u6574\u7ad9\u5f52\u4f4d\uff1a<\/p>\n<pre><code class=\"language-bash\">find \/var\/www\/example.com -type d -exec chmod 755 {} +\nfind \/var\/www\/example.com -type f -exec chmod 644 {} +\n<\/code><\/pre>\n<p>\u5982\u679c\u7b2c\u4e8c\u6b65\u53d1\u73b0\u6240\u6709\u8005\u9519\u4e71\uff08\u6bd4\u5982\u5168\u662f root\uff09\uff0c\u518d\u8865\u4e00\u6761 <code>chown -R www-data:www-data \/var\/www\/example.com<\/code>\u3002\u6ce8\u610f <code>wp-config.php<\/code> \u8fd9\u7c7b\u542b\u654f\u611f\u4fe1\u606f\u7684\u6587\u4ef6\u8981\u5355\u72ec\u6536\u7d27\uff1a<code>chmod 640 wp-config.php<\/code>\uff0c\u5e76\u628a\u7ec4\u8bbe\u4e3a Web \u7528\u6237\u6240\u5c5e\u7ec4\u3002<\/p>\n<p><strong>\u7b2c\u56db\u6b65\uff1a\u9a8c\u8bc1\u4fee\u590d\u6548\u679c\u3002<\/strong> \u524d\u53f0\u5237\u65b0\u62a5\u9519\u9875\u9762\u786e\u8ba4\u6062\u590d\uff1b\u518d\u7528 <code>sudo -u www-data cat \/var\/www\/example.com\/index.php<\/code> \u6a21\u62df Web \u7528\u6237\u8bfb\u6587\u4ef6\uff0c\u80fd\u8f93\u51fa\u8bf4\u660e\u8bfb\u53d6\u94fe\u8def\u901a\u7545\u3002\u6700\u540e\u91cd\u8dd1\u7b2c\u4e8c\u6b65\u7684 find \u547d\u4ee4\uff0c\u8f93\u51fa\u4e3a\u7a7a\u624d\u7b97\u6e05\u96f6\u3002<\/p>\n<p>\u8fd9\u91cc\u6709\u4e00\u4e2a\u5bb9\u6613\u8e29\u7684\u5751\uff1a<code>chmod -R 755<\/code> \u4f1a\u628a\u6587\u4ef6\u4e5f\u8bbe\u6210 755\uff0c\u8ba9\u6240\u6709\u811a\u672c\u5e26\u4e0a\u6267\u884c\u4f4d\u3002\u6240\u4ee5\u6279\u91cf\u4fee\u6b63\u65f6\u52a1\u5fc5\u50cf\u4e0a\u9762\u90a3\u6837\u7528 <code>-type d<\/code> \u548c <code>-type f<\/code> \u5206\u5f00\u5904\u7406\uff0c\u4e00\u6761\u547d\u4ee4\u7ba1\u76ee\u5f55\u3001\u4e00\u6761\u7ba1\u6587\u4ef6\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/file-permission-755-644-workflow.webp\" alt=\"\u6743\u9650\u6279\u91cf\u4fee\u6b63\u6d41\u7a0b\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u4e0a\u4f20\u76ee\u5f55\u548c\u5b9a\u65f6\u4efb\u52a1\u7b49\u7279\u6b8a\u573a\u666f\u7684\u5904\u7406<\/h2>\n<p>\u57fa\u7ebf\u89c4\u5219\u4e4b\u5916\uff0c\u6709\u51e0\u4e2a\u573a\u666f\u9700\u8981\u5355\u72ec\u5bf9\u5f85\uff0c\u4e00\u5200\u5207\u53cd\u800c\u4f1a\u51fa\u95ee\u9898\u3002<\/p>\n<p><strong>\u4e0a\u4f20\u76ee\u5f55<\/strong>\u662f\u77db\u76fe\u6700\u96c6\u4e2d\u7684\u5730\u65b9\uff1a\u5b83\u5fc5\u987b\u5141\u8bb8 Web \u7528\u6237\u5199\u5165\uff08\u5426\u5219\u7528\u6237\u4f20\u4e0d\u4e86\u56fe\u7247\uff09\uff0c\u53c8\u7edd\u4e0d\u80fd\u5141\u8bb8\u6267\u884c\u3002\u6807\u51c6\u505a\u6cd5\u662f\u76ee\u5f55\u7ed9 755\u3001\u6240\u6709\u8005\u662f Web \u7528\u6237\uff0c\u518d\u5728 Nginx \u91cc\u5bf9\u4e0a\u4f20\u76ee\u5f55\u7981\u7528 PHP \u89e3\u6790\uff1a<\/p>\n<pre><code class=\"language-nginx\">location ~* ^\/wp-content\/uploads\/.*\\.php$ {\n    deny all;\n}\n<\/code><\/pre>\n<p>\u8fd9\u6837\u5373\u4f7f\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u628a <code>.php<\/code> \u6587\u4ef6\u4f20\u8fdb\u4e0a\u4f20\u76ee\u5f55\uff0c\u8bf7\u6c42\u4e5f\u4f1a\u88ab\u76f4\u63a5\u62d2\u7edd\uff0c\u53ef\u5199\u5e26\u6765\u7684\u98ce\u9669\u5c31\u88ab\u9650\u5236\u5728\u53ef\u63a7\u8303\u56f4\u5185\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/file-permission-755-644-uploads.webp\" alt=\"\u4e0a\u4f20\u76ee\u5f55\u6743\u9650\u4e0e PHP \u6267\u884c\u62e6\u622a\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<p><strong>\u591a\u4eba\u534f\u4f5c\u6216\u90e8\u7f72\u573a\u666f<\/strong>\u4e0b\uff0c\u5982\u679c Git \u62c9\u53d6\u4ee3\u7801\u7684\u7528\u6237\u548c Web \u7528\u6237\u4e0d\u540c\uff0c\u53ef\u4ee5\u628a\u4e24\u8005\u52a0\u5165\u540c\u4e00\u4e2a\u7ec4\uff0c\u76ee\u5f55\u7528 775\u3001\u6587\u4ef6\u7528 664\uff08\u7ec4\u53ef\u5199\uff09\uff0c\u65e2\u4fdd\u8bc1\u90e8\u7f72\u987a\u7545\uff0c\u53c8\u4e0d\u5411&#8221;\u5176\u4ed6\u7528\u6237&#8221;\u5f00\u653e\u5199\u6743\u9650\u3002\u524d\u63d0\u662f\u660e\u786e\u77e5\u9053\u7ec4\u91cc\u6709\u54ea\u4e9b\u6210\u5458\u3002<\/p>\n<p><strong>\u5b9a\u65f6\u4efb\u52a1\u811a\u672c<\/strong>\u5bb9\u6613\u51fa\u53e6\u4e00\u4e2a\u65b9\u5411\u7684\u9519\uff1acrontab \u91cc\u4ee5 root \u8dd1\u7684\u811a\u672c\u5199\u51fa\u4e86 root \u6240\u6709\u3001644 \u6743\u9650\u7684\u7f13\u5b58\u6587\u4ef6\uff0cWeb \u7528\u6237\u4e0b\u6b21\u8981\u66f4\u65b0\u8fd9\u4e2a\u7f13\u5b58\u65f6\u5c31\u5199\u4e0d\u8fdb\u53bb\uff0c\u8868\u73b0\u4e3a\u9875\u9762\u5076\u53d1\u62a5\u9519\u3001\u5237\u65b0\u540e\u6062\u590d\u3002\u5bf9\u6bd4\u7f13\u5b58\u6587\u4ef6\u7684 <code>ls -l<\/code> \u6240\u6709\u8005\u548c Web \u7528\u6237\u540d\uff0c\u628a\u751f\u6210\u4efb\u52a1\u7684\u6267\u884c\u7528\u6237\u6539\u6210 Web \u7528\u6237\u5373\u53ef\u3002<\/p>\n<p>\u5982\u679c\u4f60\u7528\u7684\u662f Hostease \u7684<a href=\"https:\/\/cn.hostease.com\/web-hosting\/\">\u865a\u62df\u4e3b\u673a<\/a>\uff0c\u6587\u4ef6\u6743\u9650\u7531 cPanel \u9762\u677f\u7684&#8221;\u6587\u4ef6\u7ba1\u7406\u5668&#8221;\u56fe\u5f62\u5316\u8bbe\u7f6e\uff0c\u52fe\u9009 Read\/Write\/Execute \u590d\u9009\u6846\u5373\u53ef\uff0c\u6570\u503c\u540c\u6837\u9075\u5faa&#8221;\u76ee\u5f55 755\u3001\u6587\u4ef6 644&#8243;\u7684\u57fa\u7ebf\uff1b<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u72ec\u7acb\u670d\u52a1\u5668<\/a>\u548c <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS \u4e3b\u673a<\/a> \u7528\u6237\u5219\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u672c\u6587\u7684\u547d\u4ee4\u884c\u65b9\u6848\u3002\u76f8\u5173\u4e3b\u9898\u7684\u6df1\u5165\u914d\u7f6e\u53ef\u4ee5\u53c2\u8003\u7ad9\u5185\u7684 <a href=\"https:\/\/cn.hostease.com\/blog\/linux\/linux-ssh-fail2ban-hardening\/\">Linux \u670d\u52a1\u5668\u5b89\u5168\u52a0\u56fa\uff1aSSH\u3001fail2ban \u4e0e\u9632\u706b\u5899\u5b9e\u6218\u914d\u7f6e<\/a> \u548c <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/dedicated-server-security-boundaries\/\">\u72ec\u7acb\u670d\u52a1\u5668\u7684\u5b89\u5168\u8fb9\u754c\u600e\u4e48\u8865<\/a> \u4e24\u7bc7\u6587\u7ae0\u3002<\/p>\n<h2>\u6392\u67e5\u6e05\u5355\u4e0e\u65e5\u5e38\u7ef4\u62a4\u5efa\u8bae<\/h2>\n<p>\u6743\u9650\u95ee\u9898&#8221;\u8bbe\u9519\u4e00\u6b21\uff0c\u9690\u60a3\u957f\u671f\u5b58\u5728&#8221;\uff0c\u4e0e\u5176\u4e8b\u540e\u6392\u67e5\uff0c\u4e0d\u5982\u628a\u68c0\u67e5\u7eb3\u5165\u4f8b\u884c\u7ef4\u62a4\u6d41\u7a0b\uff1a<\/p>\n<ul>\n<li>\u5927\u7248\u672c\u4e0a\u7ebf\u6216\u8fc1\u79fb\u540e\uff0c\u8dd1\u4e00\u6b21 <code>find \/var\/www\/example.com -perm \/go+w -o ! -user www-data | wc -l<\/code>\uff0c\u7ed3\u679c\u975e\u96f6\u5c31\u8bf4\u660e\u6709\u6587\u4ef6\u504f\u79bb\u57fa\u7ebf\u3002<\/li>\n<li>\u6bcf\u6708\u68c0\u67e5\u4e0a\u4f20\u76ee\u5f55\uff1a\u786e\u8ba4\u6ca1\u6709 <code>.php<\/code> \u6df7\u5165\uff08<code>find uploads\/ -name \"*.php\"<\/code>\uff09\uff0c\u6743\u9650\u4fdd\u6301 755 \u800c\u975e 777\u3002<\/li>\n<li>\u4fee\u6539\u6743\u9650\u524d\u7528 <code>stat \u6587\u4ef6\u540d<\/code> \u8bb0\u5f55\u5f53\u524d\u72b6\u6001\uff0c\u51fa\u95ee\u9898\u53ef\u4ee5\u7acb\u523b\u8fd8\u539f\u3002<\/li>\n<li>\u542b\u6570\u636e\u5e93\u8d26\u53f7\u5bc6\u7801\u7684\u914d\u7f6e\u6587\u4ef6\u7edf\u4e00\u6536\u7d27\u5230 640\uff0c\u5e76\u5217\u5165\u4e0a\u7ebf\u68c0\u67e5\u9879\u3002<\/li>\n<li>\u5728\u90e8\u7f72\u811a\u672c\u91cc\u56fa\u5316 <code>find -type d -exec chmod 755<\/code> \u548c <code>find -type f -exec chmod 644<\/code>\uff0c\u8ba9\u6bcf\u6b21\u53d1\u5e03\u81ea\u52a8\u5f52\u4f4d\u3002<\/li>\n<\/ul>\n<p>\u603b\u7ed3\u4e00\u4e0b\uff1a755 \u7ed9\u76ee\u5f55\u3001644 \u7ed9\u6587\u4ef6\u662f\u7f51\u7ad9\u6587\u4ef6\u6743\u9650\u7684\u5b89\u5168\u57fa\u7ebf\uff0c403 \u7c7b\u95ee\u9898\u6cbf&#8221;\u6240\u6709\u8005 + \u8def\u5f84\u5c42\u7ea7&#8221;\u6392\u67e5\uff0c\u5b89\u5168\u7c7b\u95ee\u9898\u6cbf&#8221;\u53ef\u5199\u4f4d + \u6267\u884c\u4f4d&#8221;\u6392\u67e5\uff0c<code>find<\/code> \u52a0 <code>chmod<\/code> \u7684\u7ec4\u5408\u8db3\u4ee5\u8986\u76d6 90% \u7684\u573a\u666f\u3002\u5982\u679c\u4f60\u9700\u8981\u4e00\u5957\u6743\u9650\u4e4b\u5916\u66f4\u5b8c\u6574\u7684\u670d\u52a1\u5668\u9632\u62a4\u65b9\u6848\uff0c\u53ef\u4ee5\u8003\u8651\u5728\u73b0\u6709 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS<\/a>\uff08<a href=\"https:\/\/cn.hostease.com\/vps\/\">\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff09\u57fa\u7840\u4e0a\u53e0\u52a0 <a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">Hostease \u7684\u72ec\u7acb\u670d\u52a1\u5668<\/a> \u65b9\u6848\uff0c\u914d\u5408\u7ad9\u5185\u7684 <a href=\"https:\/\/cn.hostease.com\/blog\/linux\/nftables-practical\/\">nftables \u9632\u706b\u5899\u89c4\u5219\u6df1\u5ea6\u5b9e\u6218<\/a> \u4e00\u8d77\u628a\u5b89\u5168\u5c42\u505a\u539a\u3002\u8fd9\u4e9b\u6295\u5165\u5f88\u5c0f\uff0c\u6321\u4f4f\u7684\u5374\u662f\u6700\u5e38\u89c1\u3001\u6210\u672c\u6700\u4f4e\u7684\u4e00\u7c7b\u653b\u51fb\u5165\u53e3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8be6\u89e3\u7f51\u7ad9\u6587\u4ef6\u6743\u9650\u4e2d 755 \u4e0e 644 \u7684\u9002\u7528\u8303\u56f4\uff0c\u5e26\u4f60\u7528 find\u3001stat\u3001namei \u7b49\u547d\u4ee4\u9010\u6b65\u6392\u67e5\u6743\u9650\u8bef\u8bbe\u5bfc\u81f4\u7684 403\u3001\u65e0\u6cd5\u5199\u5165\u4e0e\u5b89\u5168\u66b4\u9732\u95ee\u9898\u3002<\/p>\n","protected":false},"author":2,"featured_media":34095,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3822],"tags":[5410,5409,5411,2371,68,43],"class_list":["post-34098","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-5410","tag-5409","tag-chmod","tag-2371","tag-68","tag-43"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/file-permission-755-644-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/34098","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/comments?post=34098"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/34098\/revisions"}],"predecessor-version":[{"id":34100,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/34098\/revisions\/34100"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/34095"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=34098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=34098"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=34098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}