Fortigate Logları Hakkında

Arkadaşlar Merhaba,

Bir kaç gündür aşağıdaki logları alıyorum bunların anlamı nedir.

Message meets Alert condition

date=2013-04-03 time=08:58:09 devname=ULUDAG_ICECEK
devid=FG100C3G10609515 logid=0102043013 type=event subtype=user level=notice src=1.1.1.1 dst=2.2.2.2 policyid=3 user="user"
adgroup="adgroup" ui="user(1.1.1.1)" action=FSS0-auth
status=failure reason="reason" msg="AD group adgroup user user
failed in authentication"

Message meets Alert condition

date=2013-04-03 time=08:58:09 devname=ULUDAG_ICECEK
devid=FG100C3G10609515 logid=0102043017 type=event subtype=user level=notice src=1.1.1.1 dst=2.2.2.2 policyid=3 user="user"
adgroup="adgroup" group="usergroup"
ui="HTTP(1.1.1.1)" action=NTLM-auth status=failure
reason="reason" msg="AD group adgroup user user failed in
authentication"

Message meets Alert condition

date=2013-04-03 time=08:58:09 devname=ULUDAG_ICECEK
devid=FG100C3G10609515 logid=0102043009 type=event subtype=user level=notice src=1.1.1.1 dst=2.2.2.2 policyid=3 user="user"
group="usergroup" ui="HTTP(1.1.1.1)" action=authentication
status=failure reason="reason" msg="User user failed in
authentication"

Message meets Alert condition

date=2013-04-03 time=08:58:09 devname=ULUDAG_ICECEK
devid=FG100C3G10609515 logid=0102043013 type=event subtype=user level=notice src=1.1.1.1 dst=2.2.2.2 policyid=3 user="user"
adgroup="adgroup" ui="HTTP(1.1.1.1)" action=FSS0-auth
status=failure reason="reason" msg="AD group adgroup user user
failed in authentication"