hi i am a linux newbie and am using red hat 8.0 can i get the password for another user if i am the root user? i do not want to "su user" but to actually get the password. thnx rahul
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Hello rahul,
Thursday, March 20, 2003, 1:04:14 AM, you wrote:
hi i am a linux newbie and am using red hat 8.0 can i get the password for another user if i am the root user? i do not want to "su user" but to actually get the password.
Directly, No. with a password cracker , possible.
On Thu, 20 Mar 2003, Nikhil Joshi wrote:
hi i am a linux newbie and am using red hat 8.0 can i get the password for another user if i am the root user? i do not want to "su user" but to actually get the password.
Directly, No. with a password cracker , possible.
use "john ripper " the pawword craker s/w for linux
try http://www.google.com/linux?q=john+ripper
Sachin Rase writes:
On Thu, 20 Mar 2003, Nikhil Joshi wrote:
hi i am a linux newbie and am using red hat 8.0 can i get the password for another user if i am the root user? i do not want to "su user" but to actually get the password.
Directly, No. with a password cracker , possible.
use "john ripper " the pawword craker s/w for linux try http://www.google.com/linux?q=john+ripper
Should we encourage cracking on this list?? Just a thought !!!
Vinayak Hegde APGDST Student NCST-JUHU
On Thu, 20 Mar 2003 vinayak_hegde@softhome.net wrote:
Should we encourage cracking on this list?? Just a thought !!!
No, but should we emply censorship? All information on this list is FYI, use at your own risk.
hi i use redhat 8.0 often i see that my memory 256(preciously little) Mb is 100% utilized and my swap 512 Mb(abundantly available) is not utilized at all i know redhat 8.0 is desktop centric but is there any way i can make my programs and services prefer swap over memory
===== ninad purohit ninadonline(at)yahoo(dot)co(dot)in have a nice day :-)
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On Fri, 21 Mar 2003, Ninad Purohit wrote:
often i see that my memory 256(preciously little) Mb is 100% utilized
that's a good thing. think about it this way. if you had 256MB, and only 128MB was used, that means that you bought 128MB RAM extra which you are not using. Linux will expand to use all RAM available. It will allocate any free RAM to cache and buffers so that programs open faster and have faster access to data. If more RAM is required by running programs, the system will reallocate from the cache and buffers.
Swap space will be used only if the total RAM required by programs (not cache and buffers) exceeds your available RAM.
Check the output of free.
Something of this sort has already been answered on the list...... Kindly see the archive.
--Tapeshwar
--- Ninad Purohit ninadonline@yahoo.co.in wrote:
hi i use redhat 8.0 often i see that my memory 256(preciously little) Mb is 100% utilized and my swap 512 Mb(abundantly available) is not utilized at all i know redhat 8.0 is desktop centric but is there any way i can make my programs and services prefer swap over memory
===== ninad purohit ninadonline(at)yahoo(dot)co(dot)in have a nice day :-)
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Ninad Purohit writes:
often i see that my memory 256(preciously little) Mb is 100% utilized and my swap 512 Mb(abundantly available) is not utilized at all
You should be happy then. The response time will be better. Linux will use the rest of the memory as cache (which explains the fast response).
Vinayak Hegde APGDST Student NCST-JUHU
Philip S Tellis writes:
On Thu, 20 Mar 2003 vinayak_hegde@softhome.net wrote:
Should we encourage cracking on this list?? Just a thought !!!
No, but should we emply censorship? All information on this list is FYI, use at your own risk.
Censorship would be bad. I agree with you. Use it at your own risk. The normal blah blah disclaimer applies ;)
Vinayak Hegde APGDST Student NCST-JUHU
rahul revo writes:
hi i am a linux newbie and am using red hat 8.0 can i get the password for another user if i am the root user? i do not want to "su user" but to actually get the password.
Not possible. User passwords are stored as one way hashes, so it is not possible to get back the passwords from the hashes even for the root user. Unless u use a library/random password generation (for cracking the password )and then hashing it and comparing it with the actual hash. If the two hashes match, bingo u have the password. However it is possible for the superuser to reset the password of the user.
Vinayak Hegde APGDST Student NCST-JUHU
On 19 Mar 2003, rahul revo wrote:
can i get the password for another user if i am the root user?
yes you can. as root user, send a mail to the other user telling him to give you his password or you will delete his account.
Alternately, you could try a password cracker on the pasword file. You could use either a dictionary attack - which is good for badly chosen passwords, or a try everything attack (brute force) - which could last for potentially infinite time.
Another option is to write a password sniffer and run it on the network - assuming you have a network. Then wait for one of the users to telnet, ftp or pop3 in. This will not work with ssh like protocols.
Philip
On Wed, Mar 19, 2003 at 07:34:14PM -0000, rahul revo wrote:
hi i am a linux newbie and am using red hat 8.0 can i get the password for another user if i am the root user? i do not want to "su user" but to actually get the password.
There's no known, definite method. You can get that by trial and error, or brute force only.
Check up how MD5 hashing works for better details, if you are interested.
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