> -----Original Message-----
> From: Alexander Bokovoy [mailto:aboko...@redhat.com]
> Sent: Wednesday, July 12, 2017 1:45 AM
> To: FreeIPA users list <freeipa-users@lists.fedorahosted.org>
> Cc: Andy Thompson <andy.thomp...@e-tcc.com>
> Subject: Re: [Freeipa-users] IPA to AD trust 4625 NULL SID logon failures
> 
> On ti, 11 heinä 2017, Andy Thompson via FreeIPA-users wrote:
> >We are troubleshooting an account lockout issue and came across the
> >error below in the windows DC event logs while investigating.  They are
> >appearing in two of our environments, the third is quiet.  These are
> >logged several times a minute and are likely unrelated to the lockout
> >issue, but what IPA process could cause this?
> I think these are anonymous connections and unrelated to your lockouts.
>

They definitely aren't related to the lockouts but what anonymous connection 
would come from IPA?  I find it odd I'm only seeing it in two of my  
environments this much but they all have AD trusts in place

 
> >
> >Running IPA (ipa-server-4.4.0-14.el7_3.7) on RHEL 7.1
> >
> >An account failed to log on.
> >
> >Subject:
> >     Security ID:            NULL SID
> >     Account Name:           -
> >     Account Domain:         -
> >     Logon ID:               0x0
> >
> >Logon Type:                  3
> >
> >Account For Which Logon Failed:
> >     Security ID:            NULL SID
> >     Account Name:
> >     Account Domain:
> >
> >Failure Information:
> >     Failure Reason:         An Error occured during Logon.
> >     Status:                 0x80090302
> >     Sub Status:             0x0
> >
> >Process Information:
> >     Caller Process ID:      0x0
> >     Caller Process Name:    -
> >
> >Network Information:
> >     Workstation Name:       -
> >     Source Network Address: <IPA server address>
> >     Source Port:            35392
> >
> >Detailed Authentication Information:
> >     Logon Process:
> >     Authentication Package: NTLM
> >     Transited Services:     -
> >     Package Name (NTLM only):       -
> >     Key Length:             0
> >_______________________________________________
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> 
> --
> / Alexander Bokovoy
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