Warren Young wrote:> The new rules are: > > 1. At least 8 characters. > > 2. Nothing that violates the pwquality rules: > > http://linux.die.net/man/8/pam_pwqualityThe 7 rules listed in this URL seem utterly bizarre to me. The first is "Don't use a palindrome" which makes me wonder if the author knows the meaning of this word. I suspect he/she thinks it means "a known word backwards". Of the remaing 6 rules one is optional ("repeated characters") and 3 of the remaining 5 concern similarity to previous passwords. Of the remaining 2, one is to avoid short passwords (unspecified), and the other to avoid one's username. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin
On Tue, Feb 03, 2015 at 01:53:45PM +0000, Timothy Murphy wrote:> > The 7 rules listed in this URL seem utterly bizarre to me. > > The first is "Don't use a palindrome" > which makes me wonder if the author knows the meaning of this word. > I suspect he/she thinks it means "a known word backwards". >That's what I would call it (or phrase or sequence of numbers.) When I read your post, I thought I was missing something, but some cursory googling indicates that I'm right. What am I missing here? (Looking stupid for the sake of everyone who wants to know, because I'm unselfish--and, having been married more than once, have a thick skin). -- Scott Robbins PGP keyID EB3467D6 ( 1B48 077D 66F6 9DB0 FDC2 A409 FA54 EB34 67D6 ) gpg --keyserver pgp.mit.edu --recv-keys EB3467D6
Palindrome : A word, phrase or sequence that reads the same backward as forward, e.g. ?madam" or "nurses run? Val?re Binet [C] On 2/3/15, 9:16 AM, "Scott Robbins" <scottro at nyc.rr.com> wrote:>On Tue, Feb 03, 2015 at 01:53:45PM +0000, Timothy Murphy wrote: >> >> The 7 rules listed in this URL seem utterly bizarre to me. >> >> The first is "Don't use a palindrome" >> which makes me wonder if the author knows the meaning of this word. >> I suspect he/she thinks it means "a known word backwards". >> > >That's what I would call it (or phrase or sequence of numbers.) When I >read your post, I thought I was missing something, but some cursory >googling indicates that I'm right. What am I missing here? > >(Looking stupid for the sake of everyone who wants to know, because I'm >unselfish--and, having been married more than once, have a thick skin). > >-- >Scott Robbins >PGP keyID EB3467D6 >( 1B48 077D 66F6 9DB0 FDC2 A409 FA54 EB34 67D6 ) >gpg --keyserver pgp.mit.edu --recv-keys EB3467D6 > >_______________________________________________ >CentOS mailing list >CentOS at centos.org >http://lists.centos.org/mailman/listinfo/centos
On 2015-02-03, Scott Robbins <scottro at nyc.rr.com> wrote:> On Tue, Feb 03, 2015 at 01:53:45PM +0000, Timothy Murphy wrote: >> >> The first is "Don't use a palindrome" >> which makes me wonder if the author knows the meaning of this word. >> I suspect he/she thinks it means "a known word backwards". > > That's what I would call it (or phrase or sequence of numbers.) When I > read your post, I thought I was missing something, but some cursory > googling indicates that I'm right. What am I missing here?I don't think anybody is missing anything. "Palindrome" in this context may not be limited to real words; the author may be suggesting that you not pick your password by picking a real word and tacking on its reverse to make a palindrome, e.g., "password1drowssap". --keith -- kkeller at wombat.san-francisco.ca.us
Scott Robbins wrote:> On Tue, Feb 03, 2015 at 01:53:45PM +0000, Timothy Murphy wrote: >> >> The 7 rules listed in this URL seem utterly bizarre to me. >> >> The first is "Don't use a palindrome" >> which makes me wonder if the author knows the meaning of this word. >> I suspect he/she thinks it means "a known word backwards".> That's what I would call it (or phrase or sequence of numbers.) When I > read your post, I thought I was missing something, but some cursory > googling indicates that I'm right. What am I missing here?I don't follow your meaning. Do you think yraM is a palindrome? Merriam-Webster (online) a word, verse, or sentence (as ?Able was I ere I saw Elba?) or a number (as 1881) that reads the same backward or forward I can't believe many people use palindromes as passwords. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin