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Самба 2.0: опция 'unix password sync'
From: "Eugene V. Demidov"
Опция 'unix password sync' была введена специально для
возможности плавного перехода на криптованную передачу
паролей без того, чобы заставлять каждого юзера, имеющего
accont на unix-тачке еще раз вводить свой пароль в smbpasswd.
Работает эта опция при отключенном 'encrypt passwords',
и Самба, после проверки на корректность пароля пользователя
по /etc/passwd (/etc/master.passwd) сама генерит smbpasswd.
Так что спустя разумное время, за который каждый хотя бы раз
залогинился, можно безболезненно включать 'encrypt passwords',
не подводя юзеров (коих может быть сотни) поочередно к консоли.
"Синхронизация" же путем "перетаскивания" паролей из /etc/passwd
(/etc/master.passwd) в smbpasswd, как уже говорил Andrey Zakharchenko,
требует изрядного машинного времени... :)
Samba and WinNT
All versions of Windows NT prior to 4.0 Service Pack 3 could negotiate
plain text (clear text) passwords. Windows NT 4.0 Service Pack 3 changed
this default behaviour so it now will only handle encrypted passwords.
The following registry entry change will re-enable clear text password
handling:
Run regedt32.exe and locate the hive key entry:
HKEY_LOCAL_MACHINE\system\CurrentControlSet\Services\Rdr\Parameters\
Add the following value:
EnablePlainTextPassword:REG_DWORD=1
При этом все равно на Linux придется проводить дополнительную
перерегистрацию пользователей - не только командой passwd, но и smbpasswd -
генерящую самбовские пароли.
у Самбы с настройками по умолчанию скрость записи была в 3 раза
больше чем чтения: Лечим: socket options = IPTOS_LOWDELAY TCP_NODELAY
Параметр logon path ИЗ smb.conf
Linux samba for WinNT
When Samba is configured with the 'security = server' option and the
'password server = Your_Windows_NT_Server_Name' option, then it will
redirect all access authentication to that server. This way you can
use Windows NT to act as your password server with full support for
Microsoft encrypted passwords.
Note also, that since release of samba-1.9.18 we now support native encrypted
passwords too. To enable encrypted password handling several things need to be
done:
1) In smb.conf [globals]:
encrypt passwords = yes
smbpasswd file = /path/smbpasswd
the standard path is /usr/local/samba/private/smbpasswd but this may be
platform specific.
2) Use "smbpasswd -a" to add all users to the smbpasswd file.
Original of this documernt
All samba servers have security hole. Fixed version is avalable since 27.9.97
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Sources
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SMB/CIFS Clients
Microsoft
Microsoft's various clients, including WFWG3.11, LanMan, MSClient 3.0 for
DOS, can be found at ftp://ftp.microsoft.com/bussys/Clients/.
Check the ReadMe file for details at
Please Note, WinNT and Win95 don't need any extra client software in order to run Samba. These OS's come standard with TCP/IP which is all you need.Security
Users of Windows 95 and WFWG should also check out the Security Patches
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ictinus@lake.canberra.edu.au
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