Re: Using Debian SID on a Mac SE/30

["Carsten Strotmann" <cas@strotmann.de>]

Hi Stan,

On 15 Apr 2021, at 4:23, Finn Thain wrote:

> Most of that is probably password hashing. Look in /etc/shadow and 
> you'll
> probably find long password hashes. If you're not worried about weak
> hashes, you could switch to DES which is probably what A/UX uses. See 
> 'man
> login.defs' and 'man 3 crypt'.
>
> BTW, if your password hashes are never leaked or your actual passwords 
> are
> guessable anyway then I don't see much benefit from SHA512.
>
> FTR, I'm not advocating guessable passwords and weak hashes. But if 
> you
> want to try it, I hear that 12345 is very popular:
>
> $ perl -e 'print crypt("12345","xx")."\n"'
> xxwddmriJc5TI

When I had similar problems on a Mac LCII, I've switched the password 
hashing scheme from SHA512 (5000 Rounds) to MD5 with

ENCRYPT_METHOD MD5

in /etc/login.defs and

password        [success=1 default=ignore]      pam_unix.so obscure md5

in /etc/pam.d/common-password

After changing this setting, make sure to set a new password for the 
users that you use. The password string in /etc/shadow should  now look 
like this

user:$1$LJE/eegi$OnIQXGTyEwh2q8rhyJssw/:18732:0:99999:7:::

instead of this (SHA512)

user:$6$ThsKWiJWXD8NRyVk$4jC4Rmn9.SoHFou7w84VOYgTshzyvbz2zIBgDbozbzC5CfYw8Dipihsrd8HC5oNob2OjTun.2dDl0KU4c5lO51:18732:0:99999:7:::

Greetings

Carsten