有没有可以不留任何痕迹的删除工具？

dyte200

有没有可以不留任何痕迹的删除工具？我现在急需这种软件。linx,windows版本的分别有什么工具？

seamonkey

shred /dev/hda

晨想

写多几次。现在美国的FBI 恢复技术我记得是恢复5次重写。。嘿嘿。。

seamonkey

shred默认写25次。

晨想

看到了，，。恐怖。。。。250GB 硬盘擦写25次。。要多少天？。。。。

seamonkey

够呛，我尝试零字节填充一个60G硬盘，半天都没完。。

gnap

shred好像对文件达不到预期效果，对设备文件还可以。
新的文件系统如果用shred来删除文件的话，垃圾是不一定写入文件原有的块的。

mrkissinger

CAUTION: Note that shred relies on a very important assumption: that the file system overwrites data in place.
       This  is the traditional way to do things, but many modern file system designs do not satisfy this assumption.
       The following are examples of file systems on which shred is not effective, or is not guaranteed to be  effec-
       tive in all file system modes:

       * log-structured or journaled file systems, such as those supplied with

              AIX and Solaris (and JFS, ReiserFS, XFS, Ext3, etc.)

       * file systems that write redundant data and carry on even if some writes

              fail, such as RAID-based file systems

       * file systems that make snapshots, such as Network Appliance's NFS server

       * file systems that cache in temporary locations, such as NFS

              version 3 clients

       * compressed file systems

晨想

直接把硬盘砸了，，就没这个担心了。。。。。。

gnap

Post by 终极幻想
直接把硬盘砸了，，就没这个担心了。。。。。。

军方的销毁文件的要求是要达到物理销毁的级别的。