出现“passwd：Authentication token manipulation error”这种问题需要考虑以下情况：
1、错误出现在输入完新密码后
问题：/etc/passwd, /etc/shadow文件被锁住，不允许修改。
[root@weijing ]# lsattr /etc/passwd
----i-------- /etc/passwd
[root@weijing ]# lsattr /etc/shadow
----i-------- /etc/shadow
[root@weijing ]# passwd weijing
Changing password for user weijing.
New UNIX password:
BAD PASSWORD: it is based on a dictionary word
Retype new UNIX password:
passwd: Authentication token manipulation error
解决方法：
[root@weijing ]# chattr -i /etc/shadow
[root@weijing ]# chattr -i /etc/passwd
[root@weijing ]# lsattr /etc/passwd
------------- /etc/passwd
[root@weijing ]# lsattr /etc/shadow
------------- /etc/shadow
2、系统磁盘或者inode 100%满了，导致修改用户报错，通过df -h及df -i查看
3、输入完passwd后立即报错
应该是/etc/pam.d/认证的地方出问题了
[root@weijing ~]# passwd weijing
Changing password for user weijing .
passwd: Authentication token manipulation error
You have new mail in /var/spool/mail/root
注释了password：
[root@weijing ~]# cat /etc/pam.d/passwd
#%PAM-1.0
auth required pam_stack.so service=system-auth
account required pam_stack.so service=system-auth
#password required pam_stack.so service=system-auth
解决方法：
[root@weijing ~]# cat /etc/pam.d/passwd
#%PAM-1.0
auth required pam_stack.so service=system-auth
account required pam_stack.so service=system-auth
password required pam_stack.so service=system-auth
3、/etc/pam.d/system-auth 文件内容被清空。
添加如下：
[root@weijing ~]# cat /etc/pam.d/system-auth
#%PAM-1.0
# This file is auto-generated.
# User changes will be destroyed the next time authconfig is run.
auth required /lib/security/$ISA/pam_env.so
auth sufficient /lib/security/$ISA/pam_unix.so likeauth nullok
auth required /lib/security/$ISA/pam_deny.so
account required /lib/security/$ISA/pam_unix.so
account sufficient /lib/security/$ISA/pam_succeed_if.so uid < 100 quiet
account required /lib/security/$ISA/pam_permit.so
password requisite /lib/security/$ISA/pam_cracklib.so retry=3
password sufficient /lib/security/$ISA/pam_unix.so nullok use_authtok md5 shadow
password required /lib/security/$ISA/pam_deny.so
session required /lib/security/$ISA/pam_limits.so
session required /lib/security/$ISA/pam_unix.so
