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在 Sunsolaris 计算机上禁用 root 用户的空密码？

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在 Sunsolaris 计算机上禁用 root 用户的空密码？

目前我使用的是 SunSolaris 机器：

bash-3.00# uname -a
SunOS labxxxx 5.10 Generic_144488-17 sun4u sparc SUNW,Netra-240
bash-3.00#

当我尝试为 root 设置空（空白）密码时，它让我这样做：

SunOS labxxxx 5.10 Generic_144488-17 sun4u sparc SUNW,Netra-240
bash-3.00# passwd root
New Password:
Re-enter new Password:
passwd: password successfully changed for root
bash-3.00#

我在我的 Centos Linux 机器上重复了相同的测试，它不允许我为 root 用户设置空密码：

[root@localhost linuxLogs]# uname -a
Linux localhost.localdomain 2.6.32-220.el6.x86_64 #1 SMP Tue Dec 6 19:48:22 GMT 2011 x86_64 x86_64 x86_64 GNU/Linux

[root@localhost linuxLogs]# passwd root
Changing password for user root.
New password:
BAD PASSWORD: it is WAY too short
BAD PASSWORD: is a palindrome
Retype new password:
No password supplied
passwd: Authentication token manipulation error

我的问题是如何在 Solaris 计算机上完全（全局）禁用空密码？

我已经检查过以下链接，但没有帮助：

http://www.informit.com/articles/article.aspx?p=101163&seqNum=7
https://community.oracle.com/thread/1927039?start=0&tstart=0
http://www.unix.com/solaris/125161-solaris-10-allow-ssh-login-empty-passwd.html
http://docs.oracle.com/cd/E19253-01/816-4863/pam-20/index.html

有什么办法可以通过pam.conf文件来控制它吗？

这是输出：

bash-3.00# file $(which passwd)
/usr/bin/passwd:        ELF 32-bit MSB executable SPARC Version 1, dynamically linked, stripped
bash-3.00# truss -t open passwd root
open("/var/ld/ld.config", O_RDONLY)             Err#2 ENOENT
open("/lib/libbsm.so.1", O_RDONLY)              = 3
open("/lib/libpam.so.1", O_RDONLY)              = 3
open("/lib/libnsl.so.1", O_RDONLY)              = 3
open("/usr/lib/passwdutil.so.1", O_RDONLY)      = 3
open("/lib/libc.so.1", O_RDONLY)                = 3
open("/lib/libsocket.so.1", O_RDONLY)           = 3
open("/lib/libmd.so.1", O_RDONLY)               = 3
open("/lib/libsecdb.so.1", O_RDONLY)            = 3
open("/lib/libcmd.so.1", O_RDONLY)              = 3
open("/platform/SUNW,Netra-240/lib/libc_psr.so.1", O_RDONLY) = 3
open("/usr/lib/locale/en_US.ISO8859-1/en_US.ISO8859-1.so.3", O_RDONLY) = 3
open("/etc/pam_debug", O_RDONLY)                Err#2 ENOENT
open("/etc/pam.conf", O_RDONLY)                 = 3
open("/usr/lib/security/pam_passwd_auth.so.1", O_RDONLY) = 3
open("/etc/nsswitch.conf", O_RDONLY|O_LARGEFILE) = 3
open("/etc/passwd", O_RDONLY|O_LARGEFILE)       = 3
open("/usr/lib/security/pam_dhkeys.so.1", O_RDONLY) = 3
open("/usr/lib/security/pam_authtok_get.so.1", O_RDONLY) = 3
open("/usr/lib/security/pam_authtok_check.so.1", O_RDONLY) = 3
open("/usr/lib/security/pam_authtok_store.so.1", O_RDONLY) = 3
open("/dev/tty", O_RDWR)                        = 3
New Password:     Received signal #20, SIGWINCH, in read() [default]

open("/dev/tty", O_RDWR)                        = 3
Re-enter new Password:
bash-3.00#

答案1

看看吧/etc/default/passwd。有一个指令称为PASSLENGTH.默认情况下，它具有以下值6，更改密码会给出：

# passwd root
New Password: 
passwd: Password too short - must be at least 6 characters.

另请检查内容/etc/pam.conf并验证是否存在以下部分：

#
# passwd command (explicit because of a different authentication module)
#
passwd  auth required           pam_passwd_auth.so.1

和

# Password construction requirements apply to all users.
# Remove force_check to have the traditional authorized administrator
# bypass of construction requirements.
other   password requisite      pam_authtok_check.so.1 force_check

有关更多信息，请参阅man -s 5 pam_authtok_check

当使用truss查看passwd二进制文件使用了哪些文件时，将返回以下输出：

#  truss -t open passwd root
open("/var/ld/ld.config", O_RDONLY)             Err#2 ENOENT
open("/lib/libbsm.so.1", O_RDONLY)              = 3
open("/lib/libpam.so.1", O_RDONLY)              = 3
open("/lib/libnsl.so.1", O_RDONLY)              = 3
open("/usr/lib/passwdutil.so.1", O_RDONLY)      = 3
open("/lib/libc.so.1", O_RDONLY)                = 3
open("/lib/libsocket.so.1", O_RDONLY)           = 3
open("/lib/libmd.so.1", O_RDONLY)               = 3
open("/lib/libsecdb.so.1", O_RDONLY)            = 3
open("/lib/libcmd.so.1", O_RDONLY)              = 3
open("/platform/SUNW,SPARC-Enterprise-T5220/lib/libc_psr.so.1", O_RDONLY) = 3
open("/etc/pam_debug", O_RDONLY)                Err#2 ENOENT
open("/etc/pam.conf", O_RDONLY)                 = 3
open("/usr/lib/security/pam_passwd_auth.so.1", O_RDONLY) = 3
open("/etc/nsswitch.conf", O_RDONLY|O_LARGEFILE) = 3
open("/etc/passwd", O_RDONLY|O_LARGEFILE)       = 3
open("/usr/lib/security/pam_dhkeys.so.1", O_RDONLY) = 3
open("/usr/lib/security/pam_authtok_get.so.1", O_RDONLY) = 3
open("/usr/lib/security/pam_authtok_check.so.1", O_RDONLY) = 3
open("/usr/lib/security/pam_authtok_store.so.1", O_RDONLY) = 3
open("/dev/tty", O_RDWR)                        = 3
New Password: 
open("/etc/default/passwd", O_RDONLY)           = 3
open("/etc/shadow", O_RDONLY|O_LARGEFILE)       = 3
open("/etc/security/policy.conf", O_RDONLY)     = 3
passwd: Password too short - must be at least 6 characters.

Please try again
open("/dev/tty", O_RDWR)                        = 3
New Password:     Received signal #2, SIGINT, in read() [caught]

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