Lab8.1 John The Ripper - adamcunningham9990/SEC335-Journal GitHub Wiki
Unshadow & John the Ripper
Tools used to crack passwords
Usage
umask 077
Unshadow the shadow file so that John can read it:
unshadow <passwd file> <shadow file> > mypasswd
Then use John to crack the passwords:
john mypasswd
Tips / Issues
-
Remember to use sudo for unshadow and john
-
You can quit john after a few minutes, because it will switch to brute force mode and will go on indefinitely
Useful Links
John the Ripper usage examples
Secure Copy
Tool used to copy files from one host to another
Usage
Copy from remote host to local host:
scp username@remotehosut:/some/directory/file.txt /my/directory
Copy from local host to remote host:
scp myfile.text username@remotehost:/some/remote/directory/file.txt
Tips / Issues
- Remember you might have to change permissions in order to scp