File: //usr/share/selinux/devel/include/global_tunables.xml
<tunable name="allow_execheap" dftval="false">
<desc>
<p>
Allow unconfined executables to make their heap memory executable. Doing this is a really bad idea. Probably indicates a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla
</p>
</desc>
</tunable>
<tunable name="allow_execmem" dftval="false">
<desc>
<p>
Allow unconfined executables to map a memory region as both executable and writable, this is dangerous and the executable should be reported in bugzilla")
</p>
</desc>
</tunable>
<tunable name="allow_execmod" dftval="false">
<desc>
<p>
Allow all unconfined executables to use libraries requiring text relocation that are not labeled textrel_shlib_t")
</p>
</desc>
</tunable>
<tunable name="allow_execstack" dftval="false">
<desc>
<p>
Allow unconfined executables to make their stack executable. This should never, ever be necessary. Probably indicates a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla")
</p>
</desc>
</tunable>
<tunable name="allow_raw_memory_access" dftval="false">
<desc>
<p>
Allow raw memory device (/dev/mem, /dev/kmem, /dev/mergemem,
dev/oldmem, /dev/port) access for confined executables. This is
extremely dangerous as it can bypass the SELinux protections, and
should only be used by trusted domains.
</p>
</desc>
</tunable>
<tunable name="allow_polyinstantiation" dftval="false">
<desc>
<p>
Enable polyinstantiated directory support.
</p>
</desc>
</tunable>
<tunable name="allow_ypbind" dftval="false">
<desc>
<p>
Allow system to run with NIS
</p>
</desc>
</tunable>
<tunable name="console_login" dftval="true">
<desc>
<p>
Allow logging in and using the system from /dev/console.
</p>
</desc>
</tunable>
<tunable name="global_ssp" dftval="false">
<desc>
<p>
Enable reading of urandom for all domains.
</p>
<p>
This should be enabled when all programs
are compiled with ProPolice/SSP
stack smashing protection. All domains will
be allowed to read from /dev/urandom.
</p>
</desc>
</tunable>
<tunable name="mail_read_content" dftval="false">
<desc>
<p>
Allow email client to various content.
nfs, samba, removable devices, and user temp
files
</p>
</desc>
</tunable>
<tunable name="nfs_export_all_rw" dftval="false">
<desc>
<p>
Allow any files/directories to be exported read/write via NFS.
</p>
</desc>
</tunable>
<tunable name="nfs_export_all_ro" dftval="false">
<desc>
<p>
Allow any files/directories to be exported read/only via NFS.
</p>
</desc>
</tunable>
<tunable name="use_nfs_home_dirs" dftval="false">
<desc>
<p>
Support NFS home directories
</p>
</desc>
</tunable>
<tunable name="use_samba_home_dirs" dftval="false">
<desc>
<p>
Support SAMBA home directories
</p>
</desc>
</tunable>
<tunable name="user_tcp_server" dftval="false">
<desc>
<p>
Allow users to run TCP servers (bind to ports and accept connection from
the same domain and outside users) disabling this forces FTP passive mode
and may change other protocols.
</p>
</desc>
</tunable>
<tunable name="user_udp_server" dftval="false">
<desc>
<p>
Allow users to run UDP servers (bind to ports and accept connection from
the same domain and outside users)
</p>
</desc>
</tunable>