Add increase login attempts til

linux/increase_login_attempts.md

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+# Increase login attempts
+
+Usually you get 3 login attempts before having to wait 10 seconds.
+Every login you get wrong after that increases the time you have to wait.
+To increase the amount of login attempts before that happens, edit `/etc/security/faillock.conf`
+
+```
+# Deny access if the number of consecutive authentication failures
+# for this user during the recent interval exceeds n tries.
+# The default is 3.
+deny = 10
+```
+
+see also:
+```
+man pam_faillock
+```