1sshd_keygen_selinux(8)    SELinux Policy sshd_keygen    sshd_keygen_selinux(8)
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NAME

6       sshd_keygen_selinux  - Security Enhanced Linux Policy for the sshd_key‐
7       gen processes
8

DESCRIPTION

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

24       The  sshd_keygen_t  SELinux  type  can  be  entered  via  the sshd_key‐
25       gen_exec_t file type.
26
27       The default entrypoint paths for the sshd_keygen_t domain are the  fol‐
28       lowing:
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30       /usr/sbin/sshd-keygen
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PROCESS TYPES

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

BOOLEANS

53       SELinux   policy  is  customizable  based  on  least  access  required.
54       sshd_keygen policy is extremely flexible and has several booleans  that
55       allow  you to manipulate the policy and run sshd_keygen with the tight‐
56       est access possible.
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59
60       If you want to allow users to resolve user passwd entries directly from
61       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
62       gin_nsswitch_use_ldap boolean. Disabled by default.
63
64       setsebool -P authlogin_nsswitch_use_ldap 1
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66
67
68       If you want to allow all daemons to write corefiles to /, you must turn
69       on the daemons_dump_core boolean. Disabled by default.
70
71       setsebool -P daemons_dump_core 1
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74
75       If  you  want  to enable cluster mode for daemons, you must turn on the
76       daemons_enable_cluster_mode boolean. Enabled by default.
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78       setsebool -P daemons_enable_cluster_mode 1
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81
82       If you want to allow all daemons to use tcp wrappers, you must turn  on
83       the daemons_use_tcp_wrapper boolean. Disabled by default.
84
85       setsebool -P daemons_use_tcp_wrapper 1
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87
88
89       If  you  want to allow all daemons the ability to read/write terminals,
90       you must turn on the daemons_use_tty boolean. Disabled by default.
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92       setsebool -P daemons_use_tty 1
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95
96       If you want to deny any process from ptracing or  debugging  any  other
97       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
98       default.
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100       setsebool -P deny_ptrace 1
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103
104       If you want to allow any process  to  mmap  any  file  on  system  with
105       attribute  file_type,  you must turn on the domain_can_mmap_files bool‐
106       ean. Enabled by default.
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108       setsebool -P domain_can_mmap_files 1
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110
111
112       If you want to allow all domains write to kmsg_device, while kernel  is
113       executed  with  systemd.log_target=kmsg parameter, you must turn on the
114       domain_can_write_kmsg boolean. Disabled by default.
115
116       setsebool -P domain_can_write_kmsg 1
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118
119
120       If you want to allow all domains to use other domains file descriptors,
121       you must turn on the domain_fd_use boolean. Enabled by default.
122
123       setsebool -P domain_fd_use 1
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126
127       If  you  want to allow all domains to have the kernel load modules, you
128       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
129       default.
130
131       setsebool -P domain_kernel_load_modules 1
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134
135       If you want to allow all domains to execute in fips_mode, you must turn
136       on the fips_mode boolean. Enabled by default.
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138       setsebool -P fips_mode 1
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141
142       If you want to enable reading of urandom for all domains, you must turn
143       on the global_ssp boolean. Disabled by default.
144
145       setsebool -P global_ssp 1
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148
149       If  you  want  to allow confined applications to run with kerberos, you
150       must turn on the kerberos_enabled boolean. Enabled by default.
151
152       setsebool -P kerberos_enabled 1
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155
156       If you want to allow system to run with  NIS,  you  must  turn  on  the
157       nis_enabled boolean. Disabled by default.
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159       setsebool -P nis_enabled 1
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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. Disabled by default.
165
166       setsebool -P nscd_use_shm 1
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169

MANAGED FILES

171       The SELinux process type sshd_keygen_t can manage  files  labeled  with
172       the  following  file types.  The paths listed are the default paths for
173       these file types.  Note the processes UID still need to have  DAC  per‐
174       missions.
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176       cluster_conf_t
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178            /etc/cluster(/.*)?
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180       cluster_var_lib_t
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182            /var/lib/pcsd(/.*)?
183            /var/lib/cluster(/.*)?
184            /var/lib/openais(/.*)?
185            /var/lib/pengine(/.*)?
186            /var/lib/corosync(/.*)?
187            /usr/lib/heartbeat(/.*)?
188            /var/lib/heartbeat(/.*)?
189            /var/lib/pacemaker(/.*)?
190
191       cluster_var_run_t
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193            /var/run/crm(/.*)?
194            /var/run/cman_.*
195            /var/run/rsctmp(/.*)?
196            /var/run/aisexec.*
197            /var/run/heartbeat(/.*)?
198            /var/run/corosync-qnetd(/.*)?
199            /var/run/corosync-qdevice(/.*)?
200            /var/run/cpglockd.pid
201            /var/run/corosync.pid
202            /var/run/rgmanager.pid
203            /var/run/cluster/rgmanager.sk
204
205       root_t
206
207            /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
208            /
209            /initrd
210
211       sshd_key_t
212
213            /etc/ssh/ssh_host.*_key
214            /etc/ssh/ssh_host.*_key.pub
215            /etc/ssh/primes
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217

FILE CONTEXTS

219       SELinux requires files to have an extended attribute to define the file
220       type.
221
222       You can see the context of a file using the -Z option to ls
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224       Policy governs the access  confined  processes  have  to  these  files.
225       SELinux  sshd_keygen  policy  is  very flexible allowing users to setup
226       their sshd_keygen processes in as secure a method as possible.
227
228       STANDARD FILE CONTEXT
229
230       SELinux defines the file context types  for  the  sshd_keygen,  if  you
231       wanted  to store files with these types in a diffent paths, you need to
232       execute the semanage command to sepecify alternate  labeling  and  then
233       use restorecon to put the labels on disk.
234
235       semanage   fcontext  -a  -t  sshd_keygen_unit_file_t  '/srv/mysshd_key‐
236       gen_content(/.*)?'
237       restorecon -R -v /srv/mysshd_keygen_content
238
239       Note: SELinux often uses regular expressions  to  specify  labels  that
240       match multiple files.
241
242       The following file types are defined for sshd_keygen:
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244
245
246       sshd_keygen_exec_t
247
248       - Set files with the sshd_keygen_exec_t type, if you want to transition
249       an executable to the sshd_keygen_t domain.
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253       sshd_keygen_unit_file_t
254
255       - Set files with the sshd_keygen_unit_file_t type, if you want to treat
256       the files as sshd keygen unit content.
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259
260       Note:  File context can be temporarily modified with the chcon command.
261       If you want to permanently change the file context you need to use  the
262       semanage fcontext command.  This will modify the SELinux labeling data‐
263       base.  You will need to use restorecon to apply the labels.
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COMMANDS

267       semanage fcontext can also be used to manipulate default  file  context
268       mappings.
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270       semanage  permissive  can  also  be used to manipulate whether or not a
271       process type is permissive.
272
273       semanage module can also be used to enable/disable/install/remove  pol‐
274       icy modules.
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276       semanage boolean can also be used to manipulate the booleans
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278
279       system-config-selinux is a GUI tool available to customize SELinux pol‐
280       icy settings.
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AUTHOR

284       This manual page was auto-generated using sepolicy manpage .
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SEE ALSO

288       selinux(8),  sshd_keygen(8),  semanage(8),   restorecon(8),   chcon(1),
289       sepolicy(8) , setsebool(8)
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293sshd_keygen                        19-04-25             sshd_keygen_selinux(8)
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