Re: How can I use an selinux unused port

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Sep 23, 2009 at 09:35:40AM -0700, Brian Ginn wrote:
> I want to use port 60000 for a confined application that is not postgrey.
> 
> However port 60000 is "owned by" postgrey and I can't seem to get past that.
> 
> I don't want to add SELinux policy that allows my app to use postgrey's port,
> 
> I want my app to think the port is myapp_port_t.
> 
> 
> 
> Is there a way to free port 60000 from postgrey?

No easy way no, the port is declared in the corenetwork source policy which is compiled in the base module. You cannot alter/remove policy that is defined in base without editing rebuilding the whole thing.

You would have to get the selinux-policy.src.rpm corresponding to what you have installed, prep it (apply patch), Than in corenetwork.te.in remove the declaration for the particular port , rebuild and reinstall it.

But why not share the port with postgrey? Only one service can bind to it at a time anyways. Other objects get shared all the time.

> 
> 
> 
> [root@domingo install]# netstat -an | grep 60000
> 
> [root@domingo install]# semanage port -l | grep 60000
> 
> postgrey_port_t                tcp      60000
> 
> [root@domingo install]# /usr/sbin/semanage port -d -t postgrey_port_t -p tcp 60000
> 
> /usr/sbin/semanage: Port tcp/60000 is defined in policy, cannot be deleted
> 
> [root@domingo install]#
> 
> 
> 
> 
> 
> 
> 
> Thanks,
> 
> Brian
> 
> 
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please visit http://www.messagelabs.com/email 
> ______________________________________________________________________

> --
> fedora-selinux-list mailing list
> fedora-selinux-list@xxxxxxxxxx
> https://www.redhat.com/mailman/listinfo/fedora-selinux-list

Attachment: pgpLlDO5fPLgf.pgp
Description: PGP signature

--
fedora-selinux-list mailing list
fedora-selinux-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/fedora-selinux-list

[Index of Archives]     [Fedora Users]     [Fedora Desktop]     [Big List of Linux Books]     [Yosemite News]     [Yosemite Campsites]     [KDE Users]     [Gnome Users]

  Powered by Linux