1sge_shepherd_selinux(8) SELinux Policy sge_shepherd sge_shepherd_selinux(8)
2
6 sge_shepherd_selinux - Security Enhanced Linux Policy for the sge_shep‐
7 herd processes
8
10 Security-Enhanced Linux secures the sge_shepherd processes via flexible
11 mandatory access control.
12 The sge_shepherd processes execute with the sge_shepherd_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep sge_shepherd_t
20
24 The sge_shepherd_t SELinux type can be entered via the sge_shep‐
25 herd_exec_t file type.
26 The default entrypoint paths for the sge_shepherd_t domain are the fol‐
28 lowing:
29 /usr/bin/sge_shepherd
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 sge_shepherd policy is very flexible allowing users to setup their
40 sge_shepherd processes in as secure a method as possible.
41 The following process types are defined for sge_shepherd:
43 sge_shepherd_t
45 Note: semanage permissive -a sge_shepherd_t can be used to make the
47 process type sge_shepherd_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
53 SELinux policy is customizable based on least access required.
54 sge_shepherd policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run sge_shepherd with the tight‐
56 est access possible.
57 If you want to deny user domains applications to map a memory region as
61 both executable and writable, this is dangerous and the executable
62 should be reported in bugzilla, you must turn on the deny_execmem bool‐
63 ean. Enabled by default.
64 setsebool -P deny_execmem 1
66 If you want to deny any process from ptracing or debugging any other
70 processes, you must turn on the deny_ptrace boolean. Enabled by
71 default.
72 setsebool -P deny_ptrace 1
74 If you want to allow any process to mmap any file on system with
78 attribute file_type, you must turn on the domain_can_mmap_files bool‐
79 ean. Enabled by default.
80 setsebool -P domain_can_mmap_files 1
82 If you want to allow all domains write to kmsg_device, while kernel is
86 executed with systemd.log_target=kmsg parameter, you must turn on the
87 domain_can_write_kmsg boolean. Disabled by default.
88 setsebool -P domain_can_write_kmsg 1
90 If you want to allow all domains to use other domains file descriptors,
94 you must turn on the domain_fd_use boolean. Enabled by default.
95 setsebool -P domain_fd_use 1
97 If you want to allow all domains to have the kernel load modules, you
101 must turn on the domain_kernel_load_modules boolean. Disabled by
102 default.
103 setsebool -P domain_kernel_load_modules 1
105 If you want to allow all domains to execute in fips_mode, you must turn
109 on the fips_mode boolean. Enabled by default.
110 setsebool -P fips_mode 1
112 If you want to enable reading of urandom for all domains, you must turn
116 on the global_ssp boolean. Disabled by default.
117 setsebool -P global_ssp 1
119 If you want to control the ability to mmap a low area of the address
123 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
124 the mmap_low_allowed boolean. Disabled by default.
125 setsebool -P mmap_low_allowed 1
127 If you want to allow confined applications to use nscd shared memory,
131 you must turn on the nscd_use_shm boolean. Disabled by default.
132 setsebool -P nscd_use_shm 1
134 If you want to disable kernel module loading, you must turn on the
138 secure_mode_insmod boolean. Enabled by default.
139 setsebool -P secure_mode_insmod 1
141 If you want to boolean to determine whether the system permits loading
145 policy, setting enforcing mode, and changing boolean values. Set this
146 to true and you have to reboot to set it back, you must turn on the
147 secure_mode_policyload boolean. Enabled by default.
148 setsebool -P secure_mode_policyload 1
150 If you want to allow unconfined executables to make their heap memory
154 executable. Doing this is a really bad idea. Probably indicates a
155 badly coded executable, but could indicate an attack. This executable
156 should be reported in bugzilla, you must turn on the selin‐
157 uxuser_execheap boolean. Disabled by default.
158 setsebool -P selinuxuser_execheap 1
160 If you want to allow all unconfined executables to use libraries
164 requiring text relocation that are not labeled textrel_shlib_t, you
165 must turn on the selinuxuser_execmod boolean. Enabled by default.
166 setsebool -P selinuxuser_execmod 1
168 If you want to allow unconfined executables to make their stack exe‐
172 cutable. This should never, ever be necessary. Probably indicates a
173 badly coded executable, but could indicate an attack. This executable
174 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
175 stack boolean. Enabled by default.
176 setsebool -P selinuxuser_execstack 1
178 If you want to allow sge to connect to the network using any TCP port,
182 you must turn on the sge_domain_can_network_connect boolean. Disabled
183 by default.
184 setsebool -P sge_domain_can_network_connect 1
186 If you want to allow sge to access nfs file systems, you must turn on
190 the sge_use_nfs boolean. Disabled by default.
191 setsebool -P sge_use_nfs 1
193 If you want to support X userspace object manager, you must turn on the
197 xserver_object_manager boolean. Enabled by default.
198 setsebool -P xserver_object_manager 1
200
204 The SELinux process type sge_shepherd_t can manage files labeled with
205 the following file types. The paths listed are the default paths for
206 these file types. Note the processes UID still need to have DAC per‐
207 missions.
208 file_type
210 all files on the system
212
215 SELinux requires files to have an extended attribute to define the file
216 type.
217 You can see the context of a file using the -Z option to ls
219 Policy governs the access confined processes have to these files.
221 SELinux sge_shepherd policy is very flexible allowing users to setup
222 their sge_shepherd processes in as secure a method as possible.
223 The following file types are defined for sge_shepherd:
225 sge_shepherd_exec_t
229 - Set files with the sge_shepherd_exec_t type, if you want to transi‐
231 tion an executable to the sge_shepherd_t domain.
232 Note: File context can be temporarily modified with the chcon command.
236 If you want to permanently change the file context you need to use the
237 semanage fcontext command. This will modify the SELinux labeling data‐
238 base. You will need to use restorecon to apply the labels.
239
242 semanage fcontext can also be used to manipulate default file context
243 mappings.
244 semanage permissive can also be used to manipulate whether or not a
246 process type is permissive.
247 semanage module can also be used to enable/disable/install/remove pol‐
249 icy modules.
250 semanage boolean can also be used to manipulate the booleans
252 system-config-selinux is a GUI tool available to customize SELinux pol‐
255 icy settings.
256
259 This manual page was auto-generated using sepolicy manpage .
260
263 selinux(8), sge_shepherd(8), semanage(8), restorecon(8), chcon(1),
264 sepolicy(8) , setsebool(8)
265sge_shepherd 19-04-25 sge_shepherd_selinux(8)