符号链接

• A common attack is to create and uncreate symbolic links in the shared directory to some other file while your program is running - files like etc passwd or dev zero are common destinations
  常见的一种攻击是，当您的程序正在运行时，在共享目录中创建和反创建指向其他一些文件的符号链接/ etc / passwd或者/ dev / zero是常见的目标。
• You can also have one common links folder for all your eclipse installs by making a symbolic link to a links folder from each eclipse installation if your file system supports symbolic links
  您也可以通过从每个eclipse安装建立一个到links文件夹的符号链接，获得一个针对所有eclipse安装的公用links文件夹（如果您的文件系统支持符号链接） 。
• Now , let s say we wanted to write a sed script that would replace " eeny meeny miny " with " victor eeny - meeny von miny " , etc . to do this , first we would write a regular expression that would match the three strings , separated by spaces
  挂装cd - rom后， linux会锁定cd ，这样就不能用eject按钮弹出它。但是，当不再需要光盘时，如果已将/ cdrom作为符号链接，请使用
• User , you have surely seen the situation where some disk partition usually the most important one was short on space , while some other partition was grossly underused and you had to manage this situation with moving stuff around , symlinking , etc
  ”用户，您一定遇到过磁盘分区经常是最重要的那个空间不足，同时其他的分区却不能平衡使用，然后您不得不靠移到或符号链接等方法来折腾。
• With a hard link , you can pick any one of the instances of the file , and delete all the rest , and it ' ll still exist ; with symbolic links , you can delete the target file and then all the symbolic links to it will point to a non - existent file
  使用硬链接，你可以选择文件的任何一个实例并删除所有其他的，该仍然存在；而用符号链接，当你删除了目标文件之后，那所有的软链接将指向一个并不存在的文件！
• For example , if a privileged program checks if there s no file of a given name , and then opens for writing that file , an attacker could create a symbolic link file of that name between those two steps to etc passwd or some other sensitive file , for instance
  例如，如果某个已授予特权的程序检查是否不存在给定名称的文件，然后打开该文件写入信息，那么在那两个步骤之间，攻击者可以创建一个使用该名称的符号链接文件. .
• However , he found it a little difficult to install nvidia drivers because they had conflicts with other drivers , so he used a little trick to add them using symbolic links and the capability to mount a directory on another read - only filesystem
  然而，他发现在安装nvidia驱动程序时有一点困难，因为它们会与其他驱动程序产生冲突，因此他使用了一点技巧来添加这些驱动程序：使用符号链接并将一个目录挂载到另外一个只读文件系统上（
• The attacker s goal is to create a situation in which the secure program determines that a given file name doesn t exist . the attacker then creates the symbolic link to another file , and then the secure program performs some operation , but now it actually opened an unintended file
  攻击者的目标是，创造这样一种情形，即让安全程序判定某个给定的文件名并不存在，然后，攻击者就可以创建指向另一个文件的符号链接，而后安全程序继续执行某些操作（但是现在，它打开的实际上是一个意料之外的文件） 。