Linux\u4e2d\u7684\u8d26\u6237\u5305\u62ec<\/p>\n\n\n\n
- \u7528\u6237\u8d26\u6237
- \u666e\u901a\u7528\u6237\u8d26\u6237\uff1a\u5728\u7cfb\u7edf\u4e0a\u7684\u4efb\u52a1\u662f\u8fdb\u884c\u666e\u901a\u5de5\u4f5c<\/li>
- \u8d85\u7ea7\u7528\u6237\u8d26\u6237\uff08\u6216\u7ba1\u7406\u5458\u8d26\u6237\uff09\uff1a\u5728\u7cfb\u7edf\u4e0a\u7684\u4efb\u52a1\u662f\u5bf9\u666e\u901a\u7528\u6237\u548c\u6574\u4e2a\u7cfb\u7edf\u8fdb\u884c\u7ba1\u7406\u3002<\/li><\/ul><\/li>
- \u7ec4\u8d26\u6237(\u7ec4\u662f\u7528\u6237\u7684\u96c6\u5408)
- \u6807\u51c6\u7ec4\uff1a\u6807\u51c6\u7ec4\u53ef\u4ee5\u5bb9\u7eb3\u591a\u4e2a\u7528\u6237<\/li>
- \u79c1\u6709\u7ec4\uff1a\u79c1\u6709\u7ec4\u4e2d\u53ea\u6709\u7528\u6237\u81ea\u5df1<\/li><\/ul><\/li><\/ul>\n\n\n\n
\u5f53\u4e00\u4e2a\u7528\u6237\u540c\u5c5e\u4e8e\u591a\u4e2a\u7ec4\u65f6\uff0c\u5c06\u8fd9\u4e9b\u7ec4\u5206\u4e3a<\/p>\n\n\n\n
- \u4e3b\u7ec4\uff08\u521d\u59cb\u7ec4\uff09\uff1a\u7528\u6237\u767b\u5f55\u7cfb\u7edf\u65f6\u7684\u7ec4\u3002<\/li>
- \u9644\u52a0\u7ec4\uff1a\u767b\u5f55\u540e\u53ef\u5207\u6362\u7684\u5176\u4ed6\u7ec4<\/li><\/ul>\n\n\n\n
\u4e0a\u9762\u4e5f\u8bf4\u4e86\uff0c\u8d26\u6237\u7684\u5b9e\u8d28\u4e0a\u5c31\u662f\u7528\u6237\u5728\u7cfb\u7edf\u4e0a\u7684\u6807\u8bc6\uff0c\u8fd9\u4e9b\u6807\u8bc6\u662f\u7528\u6587\u4ef6\u4fdd\u5b58<\/strong>\u8d77\u6765\u7684\uff1a<\/p>\n\n\n\n
- \u7528\u6237\u540d\u548c UID \u88ab\u4fdd\u5b58\u5728
\/etc\/passwd<\/code>\u6587\u4ef6\u4e2d\uff0c\u6587\u4ef6\u6743\u9650(-rw-r--r--)<\/code><\/li>- \u7ec4\u548cGID \u88ab\u4fdd\u5b58\u5728
\/etc\/group<\/code>\u6587\u4ef6\u4e2d\uff0c\u6587\u4ef6\u6743\u9650(-r--------)<\/code><\/li>- \u7528\u6237\u53e3\u4ee4(\u5bc6\u7801)\u88ab\u4fdd\u5b58\u5728
\/etc\/shadow<\/code>\u6587\u4ef6\u4e2d \uff0c\u6587\u4ef6\u6743\u9650(-rw-r--r-- )<\/code><\/li>- \u7ec4\u53e3\u4ee4\u88ab\u4fdd\u5b58\u5728
\/etc\/gshadow<\/code>\u6587\u4ef6\u4e2d \uff0c\u6587\u4ef6\u6743\u9650(-r--------)<\/code><\/li><\/ul>\n\n\n\n\u4e5f\u5c31\u662f\u8bf4\uff1a\u6211\u4eec\u521b\u5efa\u7684\u7528\u6237\uff0c\u8fd9\u4e2a\u7528\u6237\u7684\u4fe1\u606f\u7531\u4e0d\u540c\u7684\u6587\u4ef6\u6765\u4fdd\u5b58\u7740\u3002<\/p>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-1-1024x718.png\")
<\/figure><\/div>\n\n\n\n![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-2-1024x737.png\")
<\/figure><\/div>\n\n\n\n![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-3-1024x728.png\")
<\/figure><\/div>\n\n\n\n![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-4-1024x733.png\")
<\/figure><\/div>\n\n\n\n\u6709\u4e86\u4e0a\u9762\u7684\u77e5\u8bc6\u70b9\uff0c\u4e0b\u9762\u6211\u6765\u7b80\u8ff0\u4e00\u4e0b\u521b\u5efa\u7528\u6237\u7684\u65f6\u5019\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1a<\/p>\n\n\n\n
- \u7528\u6237\u540d\u548c UID \u88ab\u4fdd\u5b58\u5728
\/etc\/passwd<\/code> \u8fd9\u4e2a\u6587\u4ef6\u4e2d\uff0c\u7528\u6237\u7684\u53e3\u4ee4\u901a\u5e38\u7528shadow passwords<\/code>\u4fdd\u62a4<\/li>- \u5f53\u7528\u6237\u767b\u5f55\u65f6\uff0c\u4ed6\u4eec\u88ab\u5206\u914d\u4e86\u4e00\u4e2a\u4e3b\u76ee\u5f55\u548c\u4e00\u4e2a\u8fd0\u884c\u7684\u7a0b\u5e8f\uff08\u901a\u5e38\u662f shell\uff09<\/li>
- \u82e5\u6ca1\u6709\u6307\u5b9a\u4ed6\u6240\u5c5e\u4e8e\u7684\u7ec4\uff0cRHEL\/CentOS\u5c31\u5efa\u7acb\u4e00\u4e2a\u548c\u8be5\u7528\u6237\u540c\u540d\u7684\u79c1\u6709\u7ec4<\/strong>\uff0c\u4e14\u7528\u6237\u88ab\u5206\u914d\u5230\u8fd9\u4e2a\u79c1\u6709\u7ec4\u4e2d<\/li><\/ul>\n\n\n\n
\u518d\u6765\u56de\u987e\u4e00\u4e0b\uff1a\u8d26\u6237\u7684\u5b9e\u8d28\u4e0a\u5c31\u662f\u7528\u6237\u5728\u7cfb\u7edf\u4e0a\u7684\u6807\u8bc6\uff0c\u8fd9\u4e9b\u6807\u8bc6\u662f\u7528\u6587\u4ef6\u4fdd\u5b58\u8d77\u6765\u7684\u3002\u4e5f\u5c31\u662f\u8bf4\uff1a\u6211\u4eec\u662f\u53ef\u4ee5\u76f4\u63a5\u7f16\u8f91\u4fee\u6539\u7cfb\u7edf\u8d26\u6237\u6587\u4ef6\u6765\u7ef4\u62a4\u8d26\u6237\u3002<\/p>\n\n\n\n
- \u4f46\u662f\u4e0d\u5efa\u8bae\u8fd9\u6837\u505a\uff0c\u5982\u679c\u660e\u786e\u8981\u8fd9\u6837\u505a\u7684\u8bdd\uff0c\u6700\u597d\u4f7f\u7528\u547d\u4ee4\u68c0\u6d4b\u4e00\u4e0b\u4f60\u7f16\u8f91\u7684\u8bed\u6cd5\u662f\u5426\u6709\u95ee\u9898\uff1a
pwck<\/code>\uff1a\u9a8c\u8bc1\u7528\u6237\u8d26\u53f7\u6587\u4ef6\uff0c\u8ba4\u8bc1\u4fe1\u606f\u7684\u5b8c\u6574\u6027\u3002\u8be5\u547d\u4ee4\u68c0\u6d4b\u6587\u4ef6\u201c\/etc\/passwd\u201d<\/code>\u548c\u201c\/etc\/shadow\u201d<\/code> \u7684\u6bcf\u884c\u4e2d\u5b57\u6bb5\u7684\u683c\u5f0f\u548c\u503c\u662f\u5426\u6b63\u786e<\/li>grpck<\/code>\uff1a\u9a8c\u8bc1\u7ec4\u8d26\u53f7\u6587\u4ef6\uff0c\u8ba4\u8bc1\u4fe1\u606f\u7684\u5b8c\u6574\u6027\u3002\u8be5\u547d\u4ee4\u68c0\u6d4b\u6587\u4ef6\u201c\/etc\/group\u201d<\/code>\u548c\u201c\/etc\/gshadow\u201d<\/code>\u7684\u6bcf\u884c\u4e2d\u5b57\u6bb5\u7684\u683c\u5f0f\u548c\u503c\u662f\u5426\u6b63\u786e\u3002<\/li><\/ul><\/li><\/ul>\n\n\n\n\u65e2\u7136\u4e0d\u5efa\u8bae\u6211\u4eec\u76f4\u63a5\u7f16\u8f91\u6587\u4ef6\u7684\u65b9\u5f0f\u6765\u7ba1\u7406\u7528\u6237\uff0c\u90a3\u4e48Linux\u662f\u80af\u5b9a\u6709\u73b0\u6210\u7684\u547d\u4ee4<\/strong>\u7ed9\u6211\u4eec\u4f7f\u7528\u7684\uff1a<\/p>\n\n\n\n
1.1 \u7ba1\u7406Linux\u7528\u6237\u7684\u547d\u4ee4<\/h6>\n\n\n\n
\n\n\n\n\u7528\u6237\u7ba1\u7406\uff1a<\/p>\n\n\n\n
useradd<\/code><\/li>usermod<\/code><\/li>userdel<\/code><\/li><\/ul>\n\n\n\n\u7ec4\u7ba1\u7406\uff1a<\/p>\n\n\n\n
groupadd<\/code><\/li>groupmod<\/code><\/li>groupdel<\/code><\/li><\/ul>\n\n\n\n\u6279\u91cf\u7ba1\u7406\u7528\u6237\uff1a<\/p>\n\n\n\n
- \u6210\u6279\u6dfb\u52a0\/\u66f4\u65b0\u4e00\u7ec4\u8d26\u6237\uff1a
newusers<\/code><\/li>- \u6210\u6279\u66f4\u65b0\u7528\u6237\u7684\u53e3\u4ee4\uff1a
chpasswd<\/code><\/li><\/ul>\n\n\n\n\u7ec4\u6210\u5458\u7ba1\u7406\uff1a<\/p>\n\n\n\n
- \u5411\u6807\u51c6\u7ec4\u4e2d\u6dfb\u52a0\u7528\u6237
gpasswd -a <\u7528\u6237\u8d26\u53f7\u540d> <\u7ec4\u8d26\u53f7\u540d><\/code><\/li>usermod -G <\u7ec4\u8d26\u53f7\u540d> <\u7528\u6237\u8d26\u53f7\u540d><\/code><\/li><\/ul><\/li>- \u4ece\u6807\u51c6\u7ec4\u4e2d\u5220\u9664\u7528\u6237
gpasswd -d <\u7528\u6237\u8d26\u53f7\u540d> <\u7ec4\u8d26\u53f7\u540d><\/code><\/li><\/ul><\/li><\/ul>\n\n\n\n\u53e3\u4ee4\u7ef4\u62a4(\u7981\u7528\u3001\u6062\u590d\u548c\u5220\u9664\u7528\u6237\u53e3\u4ee4)\uff1a<\/p>\n\n\n\n
- \u8bbe\u7f6e\u7528\u6237\u53e3\u4ee4\uff1a
passwd [<\u7528\u6237\u8d26\u53f7\u540d>]<\/code><\/li><\/ul><\/li>- \u7981\u7528\u7528\u6237\u8d26\u6237\u53e3\u4ee4
passwd -l <\u7528\u6237\u8d26\u53f7\u540d><\/code><\/li><\/ul><\/li>- \u67e5\u770b\u7528\u6237\u8d26\u6237\u53e3\u4ee4\u72b6\u6001
passwd -S <\u7528\u6237\u8d26\u53f7\u540d><\/code><\/li><\/ul><\/li>- \u6062\u590d\u7528\u6237\u8d26\u6237\u53e3\u4ee4
passwd -u <\u7528\u6237\u8d26\u53f7\u540d><\/code><\/li><\/ul><\/li>- \u6e05\u9664\u7528\u6237\u8d26\u6237\u53e3\u4ee4
passwd -d <\u7528\u6237\u8d26\u53f7\u540d><\/code><\/li><\/ul><\/li><\/ul>\n\n\n\n\u53e3\u4ee4\u65f6\u6548\u8bbe\u7f6e\uff1a<\/p>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-5-1024x503.png\")
<\/figure><\/div>\n\n\n\n\u8bbe\u7f6e\u5df2\u5b58\u5728\u7528\u6237\u7684\u53e3\u4ee4\u65f6\u6548<\/strong>\uff1a<\/p>\n\n\n\n
chage<\/code>\u547d\u4ee4<\/li><\/ul>\n\n\n\n\u7528\u6237\u5207\u6362\u547d\u4ee4\uff1a<\/p>\n\n\n\n
su<\/code>- \u76f4\u63a5\u5207\u6362\u4e3a\u8d85\u7ea7\u7528\u6237<\/li><\/ul><\/li>
sudo<\/code>- \u76f4\u63a5\u4f7f\u7528 sudo \u547d\u4ee4\u524d\u7f00\u6267\u884c\u7cfb\u7edf\u7ba1\u7406\u547d\u4ee4\u3002\u6267\u884c\u7cfb\u7edf\u7ba1\u7406\u547d\u4ee4\u65f6\u65e0\u9700\u77e5\u9053\u8d85\u7ea7\u7528\u6237\u7684\u53e3\u4ee4\uff0c\u4f7f\u7528\u666e\u901a\u7528\u6237\u81ea\u5df1\u7684\u53e3\u4ee4\u5373\u53ef<\/li><\/ul><\/li><\/ul>\n\n\n\n
\u66f4\u591a\u8d44\u6599\u67e5\u8be2\uff1a<\/p>\n\n\n\n
- https:\/\/www.cnblogs.com\/slgkaifa\/p\/6852884.html–linux\u6743\u9650\u4e4bsu\u548csudo\u7684\u5dee\u522b<\/li><\/ul>\n\n\n\n
\u7528\u6237\u76f8\u5173\u7684\u547d\u4ee4\uff1a<\/p>\n\n\n\n
id<\/code>\uff1a\u663e\u793a\u7528\u6237\u5f53\u524d\u7684uid\u3001gid\u548c\u7528\u6237\u6240\u5c5e\u7684\u7ec4\u5217\u8868<\/li>groups<\/code>\uff1a\u663e\u793a\u6307\u5b9a\u7528\u6237\u6240\u5c5e\u7684\u7ec4\u5217\u8868<\/li>whoami<\/code>\uff1a\u663e\u793a\u5f53\u524d\u7528\u6237\u7684\u540d\u79f0<\/li>w\/who<\/code>\uff1a\u663e\u793a\u767b\u5f55\u7528\u6237\u53ca\u76f8\u5173\u4fe1\u606f<\/li>newgrp<\/code>\uff1a\u7528\u4e8e\u8f6c\u6362\u7528\u6237\u7684\u5f53\u524d\u7ec4\u5230\u6307\u5b9a\u7684\u7ec4\u8d26\u53f7\uff0c\u7528\u6237\u5fc5\u987b\u5c5e\u4e8e\u8be5\u7ec4\u624d\u53ef\u4ee5\u6b63\u786e\u6267\u884c\u8be5\u547d\u4ee4<\/li><\/ul>\n\n\n\n2. \u6743\u9650\u7ba1\u7406<\/h6>\n\n\n\n
\n\n\n\nLinux\u662f\u591a\u7528\u6237\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5141\u8bb8\u591a\u4e2a\u7528\u6237\u540c\u65f6\u5728\u7cfb\u7edf\u4e0a\u767b\u5f55\u548c\u5de5\u4f5c\u3002 \u4e3a\u4e86\u786e\u4fdd\u7cfb\u7edf\u548c\u7528\u6237\u7684\u5b89\u5168\uff0cLinux\u81ea\u7136\u5c31\u6709\u81ea\u5df1\u4e00\u5957\u7684\u6743\u9650\u7ba1\u7406\u673a\u5236\u4e86\uff01<\/p>\n\n\n\n
\u76f8\u4fe1\u7528\u8fc7Linux\u7684\u540c\u5b66\u5728\u68c0\u7d22\u6587\u4ef6\u5939\u6587\u4ef6\u7684\u65f6\u5019\u5e38\u5e38\u7528\u5230
ls -l<\/code>\u7684\u547d\u4ee4\uff0c\u4f1a\u51fa\u6765\u4e00\u5927\u4e32\u7684\u6570\u636e\u3002\u8fd9\u4e9b\u6570\u636e\u4f60\u80fd\u8bfb\u61c2\u4e86\u5417\uff1f<\/p>\n\n\n\n\u4f8b\u5982\uff1a<\/p>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-6-1024x43.png\")
<\/figure><\/div>\n\n\n\n\u5176\u5b9e\u5f88\u7b80\u5355\uff1a<\/p>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-7-1024x286.png\")
<\/figure><\/div>\n\n\n\n\u5176\u5b9e\u6211\u4eec\u770b\u6743\u9650\u5c31\u662f\u770b
drwxr-xr-x<\/code>\u8fd9\u4e48\u4e00\u4e32\u4e1c\u897f\uff0c\u770b\u8d77\u6765\u5f88\u590d\u6742\uff0c\u4f46\u4e0d\u662f\u7684\uff0c\u4e00\u4e0b\u5c31\u53ef\u4ee5\u7406\u89e3\u4e86\u3002\u6211\u4eec\u6765\u5206\u89e3\u4e00\u4e0b\uff1a<\/p>\n\n\n\n![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-8-1024x345.png\")
<\/figure><\/div>\n\n\n\n\u8fd99\u4e2a\u5b57\u7b26\u6bcf3\u4e2a\u4e00\u7ec4\uff0c\u7ec4\u6210 3 \u5957 \u6743\u9650\u63a7\u5236<\/p>\n\n\n\n
- \u7b2c\u4e00\u5957\u63a7\u5236\u6587\u4ef6\u6240\u6709\u8005\u7684\u8bbf\u95ee\u6743\u9650<\/li>
- \u7b2c\u4e8c\u5957\u63a7\u5236\u6240\u6709\u8005\u6240\u5728\u7528\u6237\u7ec4\u7684\u5176\u4ed6\u6210\u5458\u7684\u8bbf\u95ee\u6743\u9650<\/li>
- \u7b2c\u4e09\u5957\u63a7\u5236\u7cfb\u7edf\u5176\u4ed6\u7528\u6237\u7684\u8bbf\u95ee\u6743\u9650<\/li><\/ul>\n\n\n\n
rwx<\/strong>\u5206\u522b\u4ee3\u8868\u7684\u610f\u601d\uff1a<\/p>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-9-1024x511.png\")
<\/figure><\/div>\n\n\n\n\u770b\u5230\u8fd9\u91cc\u6765\uff0c\u5982\u679c\u524d\u9762\u7684\u4f60\u770b\u61c2\u4e86\uff0c\u90a3
drwxr-xr-x<\/code>\u8fd9\u4e48\u4e00\u4e32\u4e1c\u897f\u6211\u89c9\u5f97\u4f60\u5f88\u5bb9\u6613\u5c31\u80fd\u7406\u89e3\u4e86\uff1a<\/p>\n\n\n\n- d\u662f\u6587\u4ef6\u5939\uff0c\u540e\u9762\u8fd8\u67099\u4e2a\u5b57\u6bcd\uff0c\u6bcf3\u4e2a\u5206\u6210\u4e00\u7ec4\uff0c
-<\/code>\u53f7\u8868\u793a\u6ca1\u6709\u3002\u90a3\u4e48\u8fd9\u4e2a\u6587\u4ef6\u5939\u7684\u6743\u9650\u5c31\u662f\uff1a- \u5bf9\u5f53\u524d\u7528\u6237\u662f\u53ef\u8bfb\u53ef\u5199\u53ef\u6267\u884c\uff0c\u5bf9\u540c\u7ec4\u7684\u7528\u6237\u662f\u53ef\u8bfb\u53ef\u6267\u884c\uff0c\u5bf9\u5176\u4ed6\u7684\u7528\u6237\u662f\u53ef\u8bfb\u53ef\u6267\u884c<\/li><\/ul><\/li><\/ul>\n\n\n\n
\u662f\u4e0d\u662f\u5f88\u7b80\u5355\uff1f\uff1f
r-read,w-write,x-execute<\/code>\uff0c\u5f88\u597d\u7406\u89e3\u7684\u3002<\/p>\n\n\n\n\u5bf9\u4e8e\u8fd9\u4e9brwx\u547d\u4ee4\u4e3a\u4e86\u65b9\u4fbf\u8fd8\u53ef\u4ee5\u6362\u6210\u516b\u8fdb\u5236\u7684\u6570\u636e\u6765\u8868\u793a\uff0c\u6211\u76f8\u4fe1\u5927\u5bb6\u770b\u5b8c\u4e0b\u9762\u7684demo\u4e5f\u77e5\u9053\u5176\u5b9e\u5c31\u8fd9\u4e48\u4e00\u56de\u4e8b\u4e86\uff1a<\/p>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-10-1024x603.png\")
<\/figure><\/div>\n\n\n\n\u6743\u9650\u7684\u4f18\u5148\u987a\u5e8f\uff1a<\/p>\n\n\n\n
- \u5982\u679cUID\u5339\u914d\uff0c\u5c31\u5e94\u7528\u7528\u6237\u5c5e\u4e3b\uff08user\uff09\u6743\u9650<\/li>
- \u5426\u5219\uff0c\u5982\u679cGID\u5339\u914d\uff0c\u5c31\u5e94\u7528\u7ec4\uff08group\uff09\u6743\u9650<\/li>
- \u5982\u679c\u90fd\u4e0d\u5339\u914d\uff0c\u5c31\u5e94\u7528\u5176\u5b83\u7528\u6237\uff08other\uff09\u6743\u9650<\/li>
- \u8d85\u7ea7\u7528\u6237root\u5177\u6709\u4e00\u5207\u6743\u9650\uff0c\u65e0\u9700\u7279\u6b8a\u8bf4\u660e<\/li><\/ul>\n\n\n\n
2.1 \u7ba1\u7406Linux\u6743\u9650\u7684\u5e38\u7528\u547d\u4ee4<\/h6>\n\n\n\n
\n\n\n\nchmod<\/code>- \u6539\u53d8\u6587\u4ef6\u6216\u76ee\u5f55\u7684\u6743\u9650<\/li><\/ul><\/li>
chown<\/code>- \u6539\u53d8\u6587\u4ef6\u6216\u76ee\u5f55\u7684\u5c5e\u4e3b\uff08\u6240\u6709\u8005\uff09<\/li><\/ul><\/li>
chgrp<\/code>- \u6539\u53d8\u6587\u4ef6\u6216\u76ee\u5f55\u6240\u5c5e\u7684\u7ec4<\/li><\/ul><\/li>
umask<\/code>- \u8bbe\u7f6e\u6587\u4ef6\u7684\u7f3a\u7701\u751f\u6210\u63a9\u7801<\/li><\/ul><\/li><\/ul>\n\n\n\n
\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-12-886x1024.png\")
<\/figure><\/div>\n\n\n\n2.2 \u6743\u9650\u6269\u5c55\u77e5\u8bc6<\/h6>\n\n\n\n
\n\n\n\n\u4e0a\u9762\u63d0\u5230\u4e86umask\u5c5e\u6027\uff0c\u5b83\u7528\u6765\u505a\u8fd9\u6837\u7684\u4e1c\u897f\u7684\uff1a\u9ed8\u8ba4\u751f\u6210\u63a9\u7801\u544a\u8bc9\u7cfb\u7edf\u5f53\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u6216\u76ee\u5f55\u65f6\u4e0d\u5e94\u8be5\u8d4b\u4e88\u5176\u54ea\u4e9b\u6743\u9650\u3002<\/p>\n\n\n\n
- \u9ed8\u8ba4\u7684umask\u7684\u503c\u662f022\uff0c\u6211\u4eec\u770b\u4e00\u4e0b\u4e0b\u9762\u7684\u4f8b\u5b50\u5e94\u8be5\u5c31\u80fd\u61c2\u4e86\uff1a<\/li><\/ul>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-13-1024x506.png\")
<\/figure><\/div>\n\n\n\n\u9664\u4e86\u4e0a\u9762\u6240\u8bf4\u7684\u6743\u9650\u4e4b\u5916\uff0cLinux\u8fd8\u63d0\u4f9b\u4e86\u4e09\u79cd\u7279\u6b8a\u7684\u6743\u9650<\/strong>\uff1a<\/p>\n\n\n\n
- SUID\uff1a\u4f7f\u7528\u547d\u4ee4\u7684\u6240\u5c5e\u7528\u6237\u7684\u6743\u9650\u6765\u8fd0\u884c\uff0c\u800c\u4e0d\u662f\u547d\u4ee4\u6267\u884c\u8005\u7684\u6743\u9650<\/li>
- SGID\uff1a\u4f7f\u7528\u547d\u4ee4\u7684\u7ec4\u6743\u9650\u6765\u8fd0\u884c\u3002<\/li>
- Sticky-bit\uff1a\u76ee\u5f55\u4e2d\u7684\u6587\u4ef6\u53ea\u80fd\u88ab\u6587\u4ef6\u7684\u6240\u5c5e\u7528\u6237\u548croot\u7528\u6237\u5220\u9664\u3002<\/li><\/ul>\n\n\n\n
\u5b83\u4eec\u662f\u8fd9\u6837\u8868\u793a\u7684\uff1a<\/p>\n\n\n\n
- SUID\u548cSGID\u7528s\u8868\u793a\uff1bSticky-bit\u7528t\u8868\u793a<\/li>
- SUID\u662f\u5360\u7528\u5c5e\u4e3b\u7684x\u4f4d\u7f6e\u6765\u8868\u793a<\/li>
- SGID\u662f\u5360\u7528\u7ec4\u7684x\u4f4d\u7f6e\u6765\u8868\u793a<\/li>
- sticky-bit\u662f\u5360\u7528\u5176\u4ed6\u4eba\u7684x\u4f4d\u7f6e\u6765\u8868\u793a<\/li><\/ul>\n\n\n\n
\u4f8b\u5982\uff1a
drwxrwxrwt 5 root root \u00a04096 \u00a0 06-18 01:01 \/tmp<\/code>\u5b83\u5c31\u62e5\u6709sticky-bit\u6743\u9650\u3002-rwsr-xr-x 1 root root \u00a023420 \u00a02010-08-11 \u00a0\/usr\/bin\/passwd<\/code>\u5b83\u5c31\u62e5\u6709SUID\u6743\u9650<\/p>\n\n\n\nSUID\uff0cSGID\uff0csticky-bit\u540c\u6837\u4e5f\u6709\u6570\u5b57\u7684\u8868\u793a\u6cd5\uff1a<\/p>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-14-1024x428.png\")
<\/figure><\/div>\n\n\n\n\u4f7f\u7528\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-15-1024x653.png\")
<\/figure><\/div>\n\n\n\nLinux\u5185\u6838\u4e2d\u6709\u5927\u91cf\u5b89\u5168\u7279\u5f81\u3002EXT2\/3\/4\u6587\u4ef6\u7cfb\u7edf\u7684\u6269\u5c55\u5c5e\u6027\uff08Extended Attributes\uff09\u53ef\u4ee5\u5728\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u4fdd\u62a4\u7cfb\u7edf\u7684\u5b89\u5168<\/p>\n\n\n\n
\u5e38\u89c1\u7684\u6269\u5c55\u5c5e\u6027\uff1a<\/p>\n\n\n\n
- A\uff08Atime\uff09\uff1a\u544a\u8bc9\u7cfb\u7edf\u4e0d\u8981\u4fee\u6539\u5bf9\u8fd9\u4e2a\u6587\u4ef6\u7684\u6700\u540e\u8bbf\u95ee\u65f6\u95f4\u3002
- \u4f7f\u7528A\u5c5e\u6027\u53ef\u4ee5\u63d0\u9ad8\u4e00\u5b9a\u7684\u6027\u80fd\u3002<\/li><\/ul><\/li>
- S\uff08Sync\uff09\uff1a\u4e00\u65e6\u5e94\u7528\u7a0b\u5e8f\u5bf9\u8fd9\u4e2a\u6587\u4ef6\u6267\u884c\u4e86\u5199\u64cd\u4f5c\uff0c\u4f7f\u7cfb\u7edf\u7acb\u523b\u628a\u4fee\u6539\u7684\u7ed3\u679c\u5199\u5230\u78c1\u76d8\u3002
- \u4f7f\u7528S\u5c5e\u6027\u80fd\u591f\u6700\u5927\u9650\u5ea6\u7684\u4fdd\u969c\u6587\u4ef6\u7684\u5b8c\u6574\u6027\u3002<\/li><\/ul><\/li>
- a\uff08Append Only\uff09\uff1a\u7cfb\u7edf\u53ea\u5141\u8bb8\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e4b\u540e\u8ffd\u52a0\u6570\u636e\uff0c\u4e0d\u5141\u8bb8\u4efb\u4f55\u8fdb\u7a0b\u8986\u76d6\u6216\u8005\u622a\u65ad\u8fd9\u4e2a\u6587\u4ef6\u3002\u5982\u679c\u76ee\u5f55\u5177\u6709\u8fd9\u4e2a\u5c5e\u6027\uff0c\u7cfb\u7edf\u5c06 \u53ea\u5141\u8bb8\u5728\u8fd9\u4e2a\u76ee\u5f55\u4e0b\u5efa\u7acb\u548c\u4fee\u6539\u6587\u4ef6\uff0c\u800c\u4e0d\u5141\u8bb8\u5220\u9664\u4efb\u4f55\u6587\u4ef6\u3002<\/li>
- i\uff08Immutable\uff09\uff1a\u7cfb\u7edf\u4e0d\u5141\u8bb8\u5bf9\u8fd9\u4e2a\u6587\u4ef6\u8fdb\u884c\u4efb\u4f55\u7684\u4fee\u6539\u3002\u5982\u679c\u76ee\u5f55\u5177\u6709\u8fd9\u4e2a\u5c5e\u6027\uff0c\u90a3\u4e48\u4efb\u4f55\u7684\u8fdb\u7a0b\u53ea\u80fd\u4fee\u6539\u76ee\u5f55\u4e4b\u4e0b\u7684\u6587\u4ef6\uff0c\u4e0d\u5141\u8bb8\u5efa\u7acb\u548c\u5220\u9664\u6587\u4ef6\u3002
- a\u5c5e\u6027\u548ci\u5c5e\u6027\u5bf9\u4e8e\u63d0\u9ad8\u6587\u4ef6\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u548c\u4fdd\u969c\u6587\u4ef6\u7cfb\u7edf\u7684\u5b8c\u6574\u6027\u6709\u5f88\u5927\u7684\u597d\u5904\u3002<\/li><\/ul><\/li><\/ul>\n\n\n\n
\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n\n\n\n
- \u663e\u793a\u6269\u5c55\u5c5e\u6027\uff1a
lsattr [-adR] [\u6587\u4ef6|\u76ee\u5f55]<\/code><\/li>- \u4fee\u6539\u6269\u5c55\u5c5e\u6027\uff1a
chattr [-R] [[-+=][\u5c5e\u6027]] <\u6587\u4ef6|\u76ee\u5f55><\/code><\/li><\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
1. Linux\u4e0b\u7684\u7528\u6237 Linux\u662f\u4e00\u4e2a\u591a\u7528\u6237\u7684\u7cfb\u7edf\uff0c\u6211\u4eec\u53ef\u4ee5\u591a\u4e2a\u7528\u6237\u540c\u65f6\u767b\u9646Linux~ \u8d26\u6237\u5b9e\u8d28\u4e0a\u5c31\u662f\u4e00 […]<\/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\/5687"}],"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=5687"}],"version-history":[{"count":9,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5687\/revisions"}],"predecessor-version":[{"id":5711,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5687\/revisions\/5711"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5687"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- \u4fee\u6539\u6269\u5c55\u5c5e\u6027\uff1a
- \u663e\u793a\u6269\u5c55\u5c5e\u6027\uff1a
- a\u5c5e\u6027\u548ci\u5c5e\u6027\u5bf9\u4e8e\u63d0\u9ad8\u6587\u4ef6\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u548c\u4fdd\u969c\u6587\u4ef6\u7cfb\u7edf\u7684\u5b8c\u6574\u6027\u6709\u5f88\u5927\u7684\u597d\u5904\u3002<\/li><\/ul><\/li><\/ul>\n\n\n\n
- A\uff08Atime\uff09\uff1a\u544a\u8bc9\u7cfb\u7edf\u4e0d\u8981\u4fee\u6539\u5bf9\u8fd9\u4e2a\u6587\u4ef6\u7684\u6700\u540e\u8bbf\u95ee\u65f6\u95f4\u3002
- \u9ed8\u8ba4\u7684umask\u7684\u503c\u662f022\uff0c\u6211\u4eec\u770b\u4e00\u4e0b\u4e0b\u9762\u7684\u4f8b\u5b50\u5e94\u8be5\u5c31\u80fd\u61c2\u4e86\uff1a<\/li><\/ul>\n\n\n\n
- \u8bbe\u7f6e\u6587\u4ef6\u7684\u7f3a\u7701\u751f\u6210\u63a9\u7801<\/li><\/ul><\/li><\/ul>\n\n\n\n
- \u5bf9\u5f53\u524d\u7528\u6237\u662f\u53ef\u8bfb\u53ef\u5199\u53ef\u6267\u884c\uff0c\u5bf9\u540c\u7ec4\u7684\u7528\u6237\u662f\u53ef\u8bfb\u53ef\u6267\u884c\uff0c\u5bf9\u5176\u4ed6\u7684\u7528\u6237\u662f\u53ef\u8bfb\u53ef\u6267\u884c<\/li><\/ul><\/li><\/ul>\n\n\n\n
- d\u662f\u6587\u4ef6\u5939\uff0c\u540e\u9762\u8fd8\u67099\u4e2a\u5b57\u6bcd\uff0c\u6bcf3\u4e2a\u5206\u6210\u4e00\u7ec4\uff0c
- https:\/\/www.cnblogs.com\/slgkaifa\/p\/6852884.html–linux\u6743\u9650\u4e4bsu\u548csudo\u7684\u5dee\u522b<\/li><\/ul>\n\n\n\n
- \u76f4\u63a5\u4f7f\u7528 sudo \u547d\u4ee4\u524d\u7f00\u6267\u884c\u7cfb\u7edf\u7ba1\u7406\u547d\u4ee4\u3002\u6267\u884c\u7cfb\u7edf\u7ba1\u7406\u547d\u4ee4\u65f6\u65e0\u9700\u77e5\u9053\u8d85\u7ea7\u7528\u6237\u7684\u53e3\u4ee4\uff0c\u4f7f\u7528\u666e\u901a\u7528\u6237\u81ea\u5df1\u7684\u53e3\u4ee4\u5373\u53ef<\/li><\/ul><\/li><\/ul>\n\n\n\n
- \u6e05\u9664\u7528\u6237\u8d26\u6237\u53e3\u4ee4
- \u6062\u590d\u7528\u6237\u8d26\u6237\u53e3\u4ee4
- \u67e5\u770b\u7528\u6237\u8d26\u6237\u53e3\u4ee4\u72b6\u6001
- \u7981\u7528\u7528\u6237\u8d26\u6237\u53e3\u4ee4
- \u8bbe\u7f6e\u7528\u6237\u53e3\u4ee4\uff1a
- \u6210\u6279\u66f4\u65b0\u7528\u6237\u7684\u53e3\u4ee4\uff1a
- \u7ec4\u548cGID \u88ab\u4fdd\u5b58\u5728
- \u7528\u6237\u540d\u548c UID \u88ab\u4fdd\u5b58\u5728