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Old 11-07-2006, 09:25 AM   #1
scadatech
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Smile Modifying Password Rules


Good Morning everyone!
I am new to this as well as new to Linux. I use it as an operating system for SCADA interface. (S)ubstation(C)ontrol(A)nd(D)ata(A)quisition.
My question is: I want to be able to use a certain set of passwords like I have done in the past so operators can memorize it by the month of the year. When I try that I get messages about a Dictionary word or reverse dictionary word or too similar to the last one. Any one know how I can do away or suspend this?
I become super User su and then type passwd if this helps.
Thanks!
 
Old 11-08-2006, 08:10 AM   #2
unSpawn
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I want to be able to use a certain set of passwords like I have done in the past so operators can memorize it by the month of the year. When I try that I get messages about a Dictionary word or reverse dictionary word or too similar to the last one. Any one know how I can do away or suspend this?
If you're on a PAM-enabled system then you could change some PAM modules behaviour (like pam_cracklib or equivalent). As far as I can remember SCADA systems have been under fire a while ago for not being as secure and robust as they should be and so I think weakening password usage and checking seems an excellent way to undermine the security posture. IMNSHO it is not advisable, especially since your problem does not seem to be a technological one but a human one.
 
Old 11-08-2006, 11:43 AM   #3
scadatech
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Quote:
Originally Posted by unSpawn
I want to be able to use a certain set of passwords like I have done in the past so operators can memorize it by the month of the year. When I try that I get messages about a Dictionary word or reverse dictionary word or too similar to the last one. Any one know how I can do away or suspend this?
If you're on a PAM-enabled system then you could change some PAM modules behaviour (like pam_cracklib or equivalent). As far as I can remember SCADA systems have been under fire a while ago for not being as secure and robust as they should be and so I think weakening password usage and checking seems an excellent way to undermine the security posture. IMNSHO it is not advisable, especially since your problem does not seem to be a technological one but a human one.
I agree but this system is not on the corporate network and has no internet capabilities.
PAM not used.

Last edited by unSpawn; 11-08-2006 at 01:13 PM. Reason: //moderator fixes quoting
 
Old 11-08-2006, 03:36 PM   #4
unSpawn
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PAM not used.
If using /etc/login.defs, then check for "OBSCURE_CHECKS_ENAB yes", else better find out what you use.
 
  


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