Linux folder properties make images unavailable

The Linux folder attribute causes the image to fail to display -- Linux Enterprise Application-Linux server application information. The following is a detailed description. There has been a BUG in WordPress 2.5 image uploading, and I have never used it. Instead, I uploaded the image to the album and then referenced it. However, this is difficult to manage. Today, when I use Windows Live Writer (WLW) to write a blog offline, WLW automatically uploads images to the server. In the past, when WP was installed, I did not use the/WP-content/uploads directory of wp. Instead, I used the self-built/uploads directory in the main directory. However, I found that all the images uploaded in the file cannot be displayed, and the Error 404 is returned (the file is not found ).

After careful observation in FlashFXP, we found that the default upload Directory attribute is 777, that is, the permission to read, write, and execute everyone. The newly created directory is 755 (no write permission for "group" and "public ). After setting it to 777, the image can be accessed normally.

This is a feature of Linux server, which is different from Windows. Linux uses a safer way to manage files. You can set permissions for each file or folder. It divides users into three types: ownership, group, and public. It sets weights for the three permissions: readable, writable, and executed, which are 4, 2, and 1 respectively. The weights are added, users are listed in the order of three types, that is, the permissions of the file (folder. This is the history of "777.

In the previous course "network operating system", the permissions were just mentioned in a word, and the teacher was also knowledgeable. It seems that the practice is still true.