/usr/share/selinux/ubuntu/include/global_tunables.xml is in selinux-policy-ubuntu-dev 0.2.20091117-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 | <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_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="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>
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