Radhat Linux User Login authentication failed

Source: Internet
Author: User

Today the customer reflects a problem, ssh not on their own server, into the computer room radhat Linux Local login (3 level) when the input root hit enter the following prompt:

Your account is locked. Maximum amount of failed attempts was reached.

Say, single-user mode

Pam_tally2-u Root (faillog-u root< see login failure information recorded in/var/log/faillog >) shows the number of log-in failures logged by the root user

Pam_tally2-u Root-r (faillog-u root-r< resets login failure information recorded in/var/log/faillog >) Resets the number of login errors to 0

Then restart (5-level mode) Enter the user name password, prompting Authontication failed.

Continue single-user mode


By the way Vi/etc/pam.d/system-auth


# This file is auto-generated.

# User changes'll be destroyed the next time Authconfig is run.

Auth requeired pam_tally2.so deny=5 lock_time=30 even_deny_root root_unlock_time=30

Auth Required pam_env.so

Auth sufficient pam_unix.so Nullok Try_first_pass

Auth requisite pam_succeed_if.so uid >= quiet

Auth Required pam_deny.so

Account Required Pam_unix.so

Account Sufficient pam_localuser.so

Account sufficient pam_succeed_if.so UID < quiet

Account Required Pam_permit.so

Password requisite pam_cracklib.so try_first_pass retry=3 type=

Password sufficient pam_unix.so sha512 shadow Nullok try_first_pass Use_au


Password Required pam_deny.so

Session optional Pam_keyinit.so Revoke

Session Required Pam_limits.so

session [Success=1 Default=ignore] pam_succeed_if.so service in Crond quiet


Session Required Pam_unix.so

The culprit is the red font line, please add a #650 in front of the red font) this.width=650; "src=" Http://img.baidu.com/hi/jx2/j_0062.gif "alt=" J_0062.gif "/> All problems are solved, the system user can log in normally.

This article is from the "Struggle" blog, please be sure to keep this source http://qiangzuibang.blog.51cto.com/2140444/1430380

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