In the Network Forum: http://www.s8s8.net Seeing that many people say that John can crack the NT's lant text, which version is not clear, can be sure, 1.4 and 1.5 are not supported NT's Lanman password crack, including 1.5 for Win. John is a tool for excellent crack standard DES encryption. Shadow is used by standard DES encryption, so it is often broken by John, and John can also crack MD5, but it is certain that NT LANMAN algorithm is not supported. About "John The Ripper instructions", here there are: http://chutium.top263.net/docs/john.htm server is unstable, please go to my chaos: http://com.6to23. COM / Article section. The following is what John the Ripper is John The Ripper? It is a tool software that tries to break the crack password software in the case of known ciphertext. The latest version of the current version is John1.4, mainly supporting ciphertice for Dual Des, MD5 encryption methods. It works in multi-medium different models and a variety of different operating systems, which have been tested with normal operation: Linuxx86, FreeBSDX86, Solaris2.xsparc, OSF / 1Alpha, DOS, WINNT / WIN95. At the beginning of 1998, John1.4 has been targeted for Intel's MMX processor, and the speed can be about 30%.