Count attempted Accesses2018/11/27 |
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Count attempted Accesses.
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| [1] | If counts of attempted accesses of a user is over the value, the user account will be locked. |
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root@dlp:~#
vi /etc/pam.d/common-auth # deny=N means a user account is locked over N times attempted (root is not applied) # if also apply to root, add [even_deny_root] # unlock_time=N means a locked account will be unlocked after N secconds later (if not specified this value, locked account will not be unlocked automatically) # if specify [even_deny_root], it's also possible to specify locked timed with [root_unlock_time=N]
auth required pam_tally2.so deny=5 unlock_time=60
# here are the per-package modules (the "Primary" block)
auth [success=1 default=ignore] pam_unix.so nullok_secure
root@dlp:~#
vi /etc/pam.d/common-account # add follows before pam_unix.so
account required pam_tally2.so
# here are the per-package modules (the "Primary" block)
account [success=1 new_authtok_reqd=done default=ignore] pam_unix.so
# here's the fallback if no module succeeds
account requisite pam_deny.so
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| [2] | Refer to a count of attempted accesses or unlock a locked account manually like follows. |
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# show a count of attempted accesses root@dlp:~# pam_tally2 -u ubuntu Login Failures Latest failure From ubuntu 8 11/27/18 19:36:50 10.0.0.241 # unlock a locked account manually root@dlp:~# pam_tally2 -r -u ubuntu
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