Passwd: Authentication token manipulation error solved when RHEL6 changes the password

RHEL6 password modification error passwd: Authentication token manipulation error solve password modification error passwd: Authentication token manipulation error cause: it is related to the previous security reinforcement, you can manually modify the attributes of files such as/etc/passwd to modify the password. Note: chattr changes the attributes of files. I: Immutable. The system does not allow any modifications to this file. If the directory has this attribute, any process can only modify the files under the directory. The solution to the problem is as follows: Modify the file attribute to be modified and then change it back, for details, see [root @ linux1/] # passwd oracleChanging password for user oracle. new password: Retype new password: passwd: authentication token manipulation error [root @ linux1/] # [root @ linux1/] # [root @ linux1/] # ls-l/etc/passwd-rw-r -- 1 root 1831 May 30/etc/passwd [root @ linux1/] # ls-l/etc/shadow-rw-r -- 1 root 1430 May 30/etc /shadow [root @ linux1/] # chattr-I/etc/passwd [root @ linux1/] # chattr-I/etc/shadow [root @ linux1/] # [root @ linux1/] # [root @ linux1/] # passwd oracleChanging password for user oracle. new password: Retype new password: passwd: all authentication tokens updated successfully. [root @ linux1/] # [root @ linux1/] # [root @ linux1/] # chattr + I/etc/shadow [root @ linux1/] # chattr + I/etc /passwd [root @ linux1/] #