ssh_keygen_selinux(8)

1ssh_keygen_selinux(8)      SELinux Policy ssh_keygen     ssh_keygen_selinux(8)
2
3
4

NAME

6       ssh_keygen_selinux  - Security Enhanced Linux Policy for the ssh_keygen
7       processes
8

DESCRIPTION

10       Security-Enhanced Linux secures the ssh_keygen processes  via  flexible
11       mandatory access control.
12
13       The  ssh_keygen  processes  execute with the ssh_keygen_t SELinux type.
14       You can check if you have these processes running by executing  the  ps
15       command with the -Z qualifier.
16
17       For example:
18
19       ps -eZ | grep ssh_keygen_t
20
21
22

ENTRYPOINTS

24       The  ssh_keygen_t  SELinux  type  can  be  entered  via  the file_type,
25       ssh_keygen_exec_t,     unlabeled_t,     proc_type,     filesystem_type,
26       mtrr_device_t, sysctl_type file types.
27
28       The  default  entrypoint paths for the ssh_keygen_t domain are the fol‐
29       lowing:
30
31       all files on the system, /usr/bin/ssh-keygen, /dev/cpu/mtrr
32

PROCESS TYPES

34       SELinux defines process types (domains) for each process running on the
35       system
36
37       You can see the context of a process using the -Z option to ps
38
39       Policy  governs  the  access confined processes have to files.  SELinux
40       ssh_keygen policy is  very  flexible  allowing  users  to  setup  their
41       ssh_keygen processes in as secure a method as possible.
42
43       The following process types are defined for ssh_keygen:
44
45       ssh_keygen_t
46
47       Note:  semanage  permissive  -a  ssh_keygen_t  can  be used to make the
48       process type ssh_keygen_t permissive. SELinux does not deny  access  to
49       permissive  process  types,  but the AVC (SELinux denials) messages are
50       still generated.
51
52

BOOLEANS

54       SELinux  policy  is  customizable  based  on  least  access   required.
55       ssh_keygen  policy  is extremely flexible and has several booleans that
56       allow you to manipulate the policy and run ssh_keygen with the tightest
57       access possible.
58
59
60
61       If  you  want to allow all daemons the ability to read/write terminals,
62       you  must  turn  on  the  allow_daemons_use_tty  boolean.  Disabled  by
63       default.
64
65       setsebool -P allow_daemons_use_tty 1
66
67
68
69       If you want to allow all domains to use other domains file descriptors,
70       you must turn on the allow_domain_fd_use boolean. Enabled by default.
71
72       setsebool -P allow_domain_fd_use 1
73
74
75
76       If you want to allow unconfined executables to make their  heap  memory
77       executable.   Doing  this  is  a  really bad idea. Probably indicates a
78       badly coded executable, but could indicate an attack.  This  executable
79       should  be  reported  in  bugzilla, you must turn on the allow_execheap
80       boolean. Disabled by default.
81
82       setsebool -P allow_execheap 1
83
84
85
86       If you want to allow unconfined executables to map a memory  region  as
87       both  executable  and  writable,  this  is dangerous and the executable
88       should be reported in bugzilla), you must  turn  on  the  allow_execmem
89       boolean. Enabled by default.
90
91       setsebool -P allow_execmem 1
92
93
94
95       If  you  want  to  allow  all  unconfined  executables to use libraries
96       requiring text relocation that are not  labeled  textrel_shlib_t),  you
97       must turn on the allow_execmod boolean. Enabled by default.
98
99       setsebool -P allow_execmod 1
100
101
102
103       If  you  want  to allow unconfined executables to make their stack exe‐
104       cutable.  This should never, ever be necessary.  Probably  indicates  a
105       badly  coded  executable, but could indicate an attack. This executable
106       should be reported in bugzilla), you must turn on  the  allow_execstack
107       boolean. Enabled by default.
108
109       setsebool -P allow_execstack 1
110
111
112
113       If  you  want  to allow confined applications to run with kerberos, you
114       must turn on the allow_kerberos boolean. Enabled by default.
115
116       setsebool -P allow_kerberos 1
117
118
119
120       If you want to allow sysadm to debug or ptrace all processes, you  must
121       turn on the allow_ptrace boolean. Disabled by default.
122
123       setsebool -P allow_ptrace 1
124
125
126
127       If  you  want  to  allow  system  to run with NIS, you must turn on the
128       allow_ypbind boolean. Disabled by default.
129
130       setsebool -P allow_ypbind 1
131
132
133
134       If you want to allow all domains to have the kernel load  modules,  you
135       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
136       default.
137
138       setsebool -P domain_kernel_load_modules 1
139
140
141
142       If you want to allow all domains to execute in fips_mode, you must turn
143       on the fips_mode boolean. Enabled by default.
144
145       setsebool -P fips_mode 1
146
147
148
149       If you want to enable reading of urandom for all domains, you must turn
150       on the global_ssp boolean. Disabled by default.
151
152       setsebool -P global_ssp 1
153
154
155
156       If you want to allow certain domains to map low memory in  the  kernel,
157       you must turn on the mmap_low_allowed boolean. Disabled by default.
158
159       setsebool -P mmap_low_allowed 1
160
161
162
163       If  you  want to allow confined applications to use nscd shared memory,
164       you must turn on the nscd_use_shm boolean. Enabled by default.
165
166       setsebool -P nscd_use_shm 1
167
168
169
170       If you want to boolean to determine whether the system permits  loading
171       policy,  setting enforcing mode, and changing boolean values.  Set this
172       to true and you have to reboot to set it back, you  must  turn  on  the
173       secure_mode_policyload boolean. Disabled by default.
174
175       setsebool -P secure_mode_policyload 1
176
177
178
179       If  you  want  to  support  NFS  home directories, you must turn on the
180       use_nfs_home_dirs boolean. Disabled by default.
181
182       setsebool -P use_nfs_home_dirs 1
183
184
185
186       If you want to support X userspace object manager, you must turn on the
187       xserver_object_manager boolean. Disabled by default.
188
189       setsebool -P xserver_object_manager 1
190
191
192

MANAGED FILES

194       The SELinux process type ssh_keygen_t can manage files labeled with the
195       following file types.  The paths listed are the default paths for these
196       file types.  Note the processes UID still need to have DAC permissions.
197
198       file_type
199
200            all files on the system
201
202

FILE CONTEXTS

204       SELinux requires files to have an extended attribute to define the file
205       type.
206
207       You can see the context of a file using the -Z option to ls
208
209       Policy governs the access  confined  processes  have  to  these  files.
210       SELinux  ssh_keygen  policy  is  very  flexible allowing users to setup
211       their ssh_keygen processes in as secure a method as possible.
212
213       The following file types are defined for ssh_keygen:
214
215
216
217       ssh_keygen_exec_t
218
219       - Set files with the ssh_keygen_exec_t type, if you want to  transition
220       an executable to the ssh_keygen_t domain.
221
222
223
224       Note:  File context can be temporarily modified with the chcon command.
225       If you want to permanently change the file context you need to use  the
226       semanage fcontext command.  This will modify the SELinux labeling data‐
227       base.  You will need to use restorecon to apply the labels.
228
229

COMMANDS

231       semanage fcontext can also be used to manipulate default  file  context
232       mappings.
233
234       semanage  permissive  can  also  be used to manipulate whether or not a
235       process type is permissive.
236
237       semanage module can also be used to enable/disable/install/remove  pol‐
238       icy modules.
239
240       semanage boolean can also be used to manipulate the booleans
241
242
243       system-config-selinux is a GUI tool available to customize SELinux pol‐
244       icy settings.
245
246

AUTHOR

248       This manual page was auto-generated using sepolicy manpage .
249
250