05-24-2001
Passwords are never decrypted on unix, but rather, a system call is made to a function and the string you enter as the password gets encrypted, and compared to the encrypted password. If they match, you're in. Now, there are password hackers, but they donot decrypt the password file, but rather, encrypt words from a dictionary and try them against every account (by crypting/comparing) until it finds
a match.
as 98_1LE suggest use 'crack' or 'John The Ripper'
10 More Discussions You Might Find Interesting
1. Solaris
I need to recover root password on a test server (E 10k) running solaris 9. Can someone please tell me how to do this? (1 Reply)
Discussion started by: nitinkgoud
1 Replies
2. Solaris
How to recover root password in solaris, I forgot root password.
thanks in advance (2 Replies)
Discussion started by: durgaprasadr13
2 Replies
3. Solaris
Dear All,
I have lost my data backup server's root password, just have a normal login username and password ..but i need to get back my root passwd....any1 can help me out plz :confused: (7 Replies)
Discussion started by: abir
7 Replies
4. Windows & DOS: Issues & Discussions
HI,
Can anybody tell me..about recovering windows administrator password in case of Forget it.
Now in Unix OS and any database,there is a fascility of recovering root/admin password....
Can window provide any such kind of fascility?....Also tell me any other normal users password recovery... (5 Replies)
Discussion started by: jagdish.machhi@
5 Replies
5. Solaris
Dear all
I have two doubts please clarify my doubt with clear steps
1. As a admin i forget my password how could i know whats my password.
2. If someone change my password how could i rectify that
Please give me reply. with clear steps (0 Replies)
Discussion started by: suneelieg
0 Replies
6. Solaris
Dear All Users
I have two doubts please any one clarify my doubts
1. In solaris As a admin i've forget my password so how could i know whats my password
2. if someone change my password so how could i rectify my password.
Please can anyone solve my doubt with clear steps (2 Replies)
Discussion started by: suneelieg
2 Replies
7. Solaris
How can I recover root password :wall:
1) I am running Solaris 10 (X86) through VMware for practicing.
2) I was practicing root password recovery and deleted the password in /etc/shadow file.
3) Neither cant login the to the CLI nor Console
4) Selected the Soalris X86 failsafe in... (4 Replies)
Discussion started by: vijaykrishna
4 Replies
8. Red Hat
Hello forum members,
Please help me to recover the root password. i can login with the user in redhat linux but i forget root password. so pleas help me to recover.
advance thanks
siva. (2 Replies)
Discussion started by: workforsiva
2 Replies
9. UNIX for Dummies Questions & Answers
Hi,
We forgot the root password on SuSE version 10 server. Since I didn't have SuSE DVD, I started the server using Redhat. I updated /etc/shadow and removed the root password.
I then started the server and I still can't login using root. Any idea?
One more question, on Novell web... (6 Replies)
Discussion started by: samnyc
6 Replies
10. Forum Support Area for Unregistered Users & Account Problems
Hi team,
My Member Id is : 'Nila' and I forgot my password. I have tried to recover it from "Forgotten your password" link. But its not accepting my mail id which is valid. (nila.shanthi@gmail.com).
Please help me to recover/change my password to login.
Regards
Vennila (1 Reply)
Discussion started by: Vennila
1 Replies
LEARN ABOUT REDHAT
shadow
SHADOW(5) File Formats Manual SHADOW(5)
NAME
shadow - encrypted password file
DESCRIPTION
shadow contains the encrypted password information for user's accounts and optional the password aging information. Included is
Login name
Encrypted password
Days since Jan 1, 1970 that password was last changed
Days before password may be changed
Days after which password must be changed
Days before password is to expire that user is warned
Days after password expires that account is disabled
Days since Jan 1, 1970 that account is disabled
A reserved field
The password field must be filled. The encryped password consists of 13 to 24 characters from the 64 character alphabet a thru z, A thru
Z, 0 thru 9, . and /. Refer to crypt(3) for details on how this string is interpreted.
The date of the last password change is given as the number of days since Jan 1, 1970. The password may not be changed again until the
proper number of days have passed, and must be changed after the maximum number of days. If the minimum number of days required is greater
than the maximum number of day allowed, this password may not be changed by the user.
An account is considered to be inactive and is disabled if the password is not changed within the specified number of days after the pass-
word expires. An account will also be disabled on the specified day regardless of other password expiration information.
This information supercedes any password or password age information present in /etc/passwd.
This file must not be readable by regular users if password security is to be maintained.
FILES
/etc/passwd - user account information
/etc/shadow - encrypted user passwords
SEE ALSO
chage(1), login(1), passwd(1), su(1), passwd(5), pwconv(8), pwunconv(8), sulogin(8)
AUTHOR
Julianne Frances Haugh (jockgrrl@ix.netcom.com)
SHADOW(5)