dovecot and allow_ypbind

[Daniel J Walsh]

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On 05/29/2012 08:55 AM, Dominick Grift wrote:
> On Tue, 2012-05-29 at 13:50 +0100, lejeczek wrote:
>> hi everybody
>> 
>> I wonder why dovecot when run with spool in users home's would need
>> allow_ypbind=1 would you know?
> 
> What AVC denials are you seeying? Setroubleshoot and/or audit2why does not
> make optimal suggestions.
> 
>> thanks!
>> 
>> -- selinux mailing list selinux at lists.fedoraproject.org 
>> https://admin.fedoraproject.org/mailman/listinfo/selinux
> 
> 
> -- selinux mailing list selinux at lists.fedoraproject.org 
> https://admin.fedoraproject.org/mailman/listinfo/selinux


Yes setroubleshoot and audit2allow/audit2why is just looking for a boolean
that would allow the access.  allow_ypbind is a very powerful boolean which
allows all apps that call getpw to listen on any port and to connect to any
port.  Unless you are actually using NIS/YP in your environment you should
never turn on allow_ypbind.


Most likely dovecot is to connect or listen on an unexpected port.  So you
could either add custom policy or modify the ports that dovecot
listens/connects too.  Best to show us the AVC.s
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