pam_tally logs: Tally underflowed for user root
Issue
- pam_tally.so が '..Tally underflowed for user..' を出力した場合はどうすれば良いですか。
Environment
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Red Hat Enterprise Linux 5
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pam-0.99.6.2-4.el5
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/etc/pam.d/system-auth は次のような設定になっています。
#%PAM-1.0 # This file is auto-generated. # User changes will be destroyed the next time authconfig is run. auth required pam_env.so auth required pam_tally.so deny=6 onerr=fail even_deny_root_account #auth sufficient pam_unix.so nullok try_first_pass auth required pam_unix.so nullok try_first_pass #auth requisite pam_succeed_if.so uid >= 500 quiet #auth required pam_deny.so account required pam_tally.so account required pam_unix.so account sufficient pam_succeed_if.so uid < 500 quiet account required pam_permit.so password requisite pam_cracklib.so try_first_pass retry=3 password sufficient pam_unix.so md5 shadow nullok try_first_pass use_authtok 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 use_uid session required pam_unix.so
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/etc/pamd/vsftpd は次のようになっています。
#%PAM-1.0 session optional pam_keyinit.so force revoke auth required pam_listfile.so item=user sense=deny file=/etc/vsftpd/ftpusers onerr=succeed auth required pam_shells.so auth include system-auth account include system-auth session include system-auth session required pam_loginuid.so
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