Any tips suggestion how to use crack in ubuntu.

Thanks in advance!

Perhaps going to another site, where they may actually be willing to give you help on cracking passwords. I doubt this is it.

i just trying to know how to use that program i have no bad intentions i just want to know evrything in my linux box.

It makes no difference what your intentions are. See forum rules:

It may well be legitimate, and therefore informative, for you to study how the security mechanisms actually work. Topics that you may wish to examine include:

• PAM = Pluggable Authentication Modules: the fundamental, generic mechanism that nearly all system components employ to answer authentication-related questions, including login.
• Shadow Passwords: Many programs refer to the /etc/passwd and /etc/group files, but it isn't safe to put "live password information" there. So, they don't. Real password-info is stored elsewhere.
• Kerberos, LDAP, and so on: Mechanisms by which authentication credentials can be centrally managed. (Microsoft calls this "Active Directory.")
• "Hardened" Linux distributions, such as SELinux: strategies by which the default Linux mechanisms can be greatly strengthened, e.g. to meet defense-department or finance requirements. (The US Department of Defense actually commissioned and largely paid-for the SELinux project.)

Software security management and practice is a huge and fascinating topic, and I think, a legitimate one. And it will show you rather quickly what a hopeless quest "cracking" actually is... no matter how much it gets mentioned in the popular press from time to time.

Although this forum, quite properly, has an editorial policy against discussions specifically on this subject, as a "white hat" subject it definitely is something that you need to study to some degree. For instance, if you do anything involving finance or online commerce (and you most certainly will...) you need to understand the industry's PCI requirements. Likewise, if you have anything to do with health-care, the HIPAA legislation is the law-of-the-land in the US. The overall subject of "data security and integrity" is therefore much, much larger and more multi-faceted than it at first blush appears.

You will find that the actual defenses are quite stout and well-reasoned, and that most flaws come from human factors. Therefore, since this is quite likely to be part of your role as a computer professional (directly or indirectly), and since you will be wearing "that white hat," you need to understand especially those "human factors."

Security is a process, and "security by obscurity" does not exist. As a professional in this industry, you do have duties and even liabilities regarding it.

crack is bad MmmmKkk ?!?!


Sorry just couldn't pass up the opportunity for the South Park reference..


Password crackers are valid security assessment tools, when used int eh right hands, to analyze password complexity on a system.. so the immediate jump to them being bad isn't necessarily correct. On the Other hand we can't know the OP's intentions so erring on the side of caution is valid.

In my experience, a decent password-strength algorithm usually is enough to prompt people to select non-trivial passwords ... and the password-encryption system that is actually used (salted SHA digests) is adequate to make sure that "cracking" won't actually succeed in reasonable time.

"Social exploits" are by-far the most common: the user is fooled into typing-in the value.

abrenar, you've already been publicly warned about this. I mean, seriously, your previous 30-day infraction hasn't even expired and you're already back to old habits. This is your second (and final) public warning from me. To clarify: You will NOT get a third warning from me. The LQ Rules make it extremely clear that this isn't the type of site you seem to think it is. I hope you take advantage of the three mandatory vacation days I'm giving you and think about your future membership here at LQ.

This thread has been reported and will be closed shortly.

+1 vote for banning this wannabe haxxor

Viewing the List of topics this user has started shows a definite pattern..

so out of 12 total topics started 50% have been similar to this thread, in some fashion.

Most of the threads end in, or contain posts from Moderators.. Tinkster, Redazz (locked), Win32sux, Pixellany, XavierP, etc. Most have ended in warnings to discontinue the trend of this style post. That's a LOT of mod attention for one poster in such a short time.

Looks like this guys has just about enough rope already.....

Guys, you're feeding a troll.

When I use crack (under Ubuntu, that is) I find it an idea to wash up with Ammonia, as opposed to baking soda- requires less skill (though this is freebase, not crack). I assume you're using the live cd? Right, melt the cd around into a sorta conical shape, then melt into a crude u-bend. Smoke up, enjoy the open source flavour.

Solve your problem?

no so much a troll, as a script kiddie wannabe, who hasn't acknowledged the not so gentle hints from the moderators here.

Thread closed due to reasons mentioned above by win32sux.