ssh_keygen_selinux(8)

1ssh_keygen_selinux(8)      SELinux Policy ssh_keygen     ssh_keygen_selinux(8)
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NAME

6       ssh_keygen_selinux  - Security Enhanced Linux Policy for the ssh_keygen
7       processes
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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.
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17       For example:
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19       ps -eZ | grep ssh_keygen_t
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ENTRYPOINTS

24       The  ssh_keygen_t SELinux type can be entered via the ssh_keygen_exec_t
25       file type.
26
27       The default entrypoint paths for the ssh_keygen_t domain are  the  fol‐
28       lowing:
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30       /usr/bin/ssh-keygen
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PROCESS TYPES

33       SELinux defines process types (domains) for each process running on the
34       system
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36       You can see the context of a process using the -Z option to ps
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38       Policy governs the access confined processes have  to  files.   SELinux
39       ssh_keygen  policy  is  very  flexible  allowing  users  to setup their
40       ssh_keygen processes in as secure a method as possible.
41
42       The following process types are defined for ssh_keygen:
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44       ssh_keygen_t
45
46       Note: semanage permissive -a ssh_keygen_t  can  be  used  to  make  the
47       process  type  ssh_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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BOOLEANS

53       SELinux   policy  is  customizable  based  on  least  access  required.
54       ssh_keygen policy is extremely flexible and has several  booleans  that
55       allow you to manipulate the policy and run ssh_keygen with the tightest
56       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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67
68       If you want to allow all daemons the ability to  read/write  terminals,
69       you must turn on the daemons_use_tty boolean. Disabled by default.
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71       setsebool -P daemons_use_tty 1
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75       If  you  want  to deny any process from ptracing or debugging any other
76       processes, you  must  turn  on  the  deny_ptrace  boolean.  Enabled  by
77       default.
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79       setsebool -P deny_ptrace 1
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83       If  you  want  to  allow  any  process  to mmap any file on system with
84       attribute file_type, you must turn on the  domain_can_mmap_files  bool‐
85       ean. Enabled by default.
86
87       setsebool -P domain_can_mmap_files 1
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91       If  you want to allow all domains write to kmsg_device, while kernel is
92       executed with systemd.log_target=kmsg parameter, you must turn  on  the
93       domain_can_write_kmsg boolean. Disabled by default.
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95       setsebool -P domain_can_write_kmsg 1
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99       If you want to allow all domains to use other domains file descriptors,
100       you must turn on the domain_fd_use boolean. Enabled by default.
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102       setsebool -P domain_fd_use 1
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106       If you want to allow all domains to have the kernel load  modules,  you
107       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
108       default.
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110       setsebool -P domain_kernel_load_modules 1
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114       If you want to allow all domains to execute in fips_mode, you must turn
115       on the fips_mode boolean. Enabled by default.
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117       setsebool -P fips_mode 1
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121       If you want to enable reading of urandom for all domains, you must turn
122       on the global_ssp boolean. Disabled by default.
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124       setsebool -P global_ssp 1
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127
128       If you want to allow confined applications to run  with  kerberos,  you
129       must turn on the kerberos_enabled boolean. Enabled by default.
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131       setsebool -P kerberos_enabled 1
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134
135       If  you  want  to  allow  system  to run with NIS, you must turn on the
136       nis_enabled boolean. Disabled by default.
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138       setsebool -P nis_enabled 1
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141
142       If you want to allow confined applications to use nscd  shared  memory,
143       you must turn on the nscd_use_shm boolean. Disabled by default.
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145       setsebool -P nscd_use_shm 1
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148
149       If  you want to support ecryptfs home directories, you must turn on the
150       use_ecryptfs_home_dirs boolean. Disabled by default.
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152       setsebool -P use_ecryptfs_home_dirs 1
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156       If you want to support fusefs home directories, you must  turn  on  the
157       use_fusefs_home_dirs boolean. Disabled by default.
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159       setsebool -P use_fusefs_home_dirs 1
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162
163       If  you  want  to  support  NFS  home directories, you must turn on the
164       use_nfs_home_dirs boolean. Disabled by default.
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166       setsebool -P use_nfs_home_dirs 1
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170       If you want to support SAMBA home directories, you  must  turn  on  the
171       use_samba_home_dirs boolean. Disabled by default.
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173       setsebool -P use_samba_home_dirs 1
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MANAGED FILES

178       The SELinux process type ssh_keygen_t can manage files labeled with the
179       following file types.  The paths listed are the default paths for these
180       file types.  Note the processes UID still need to have DAC permissions.
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182       cifs_t
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185       ecryptfs_t
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187            /home/[^/]+/.Private(/.*)?
188            /home/[^/]+/.ecryptfs(/.*)?
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190       fusefs_t
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192            /var/run/user/[^/]*/gvfs
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194       glusterd_var_lib_t
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196            /var/lib/glusterd(/.*)?
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198       nfs_t
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201       ssh_home_t
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203            /var/lib/[^/]+/.ssh(/.*)?
204            /root/.ssh(/.*)?
205            /var/lib/one/.ssh(/.*)?
206            /var/lib/pgsql/.ssh(/.*)?
207            /var/lib/openshift/[^/]+/.ssh(/.*)?
208            /var/lib/amanda/.ssh(/.*)?
209            /var/lib/stickshift/[^/]+/.ssh(/.*)?
210            /var/lib/gitolite/.ssh(/.*)?
211            /var/lib/nocpulse/.ssh(/.*)?
212            /var/lib/gitolite3/.ssh(/.*)?
213            /var/lib/openshift/gear/[^/]+/.ssh(/.*)?
214            /root/.shosts
215            /home/[^/]+/.ssh(/.*)?
216            /home/[^/]+/.ansible/cp/.*
217            /home/[^/]+/.shosts
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219       ssh_keygen_tmp_t
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222       sshd_key_t
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224            /etc/ssh/ssh_host.*_key
225            /etc/ssh/ssh_host.*_key.pub
226            /etc/ssh/primes
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FILE CONTEXTS

230       SELinux requires files to have an extended attribute to define the file
231       type.
232
233       You can see the context of a file using the -Z option to ls
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235       Policy governs the access  confined  processes  have  to  these  files.
236       SELinux  ssh_keygen  policy  is  very  flexible allowing users to setup
237       their ssh_keygen processes in as secure a method as possible.
238
239       STANDARD FILE CONTEXT
240
241       SELinux defines the file context  types  for  the  ssh_keygen,  if  you
242       wanted  to store files with these types in a diffent paths, you need to
243       execute the semanage command to sepecify alternate  labeling  and  then
244       use restorecon to put the labels on disk.
245
246       semanage   fcontext   -a  -t  ssh_keygen_tmp_t  '/srv/myssh_keygen_con‐
247       tent(/.*)?'
248       restorecon -R -v /srv/myssh_keygen_content
249
250       Note: SELinux often uses regular expressions  to  specify  labels  that
251       match multiple files.
252
253       The following file types are defined for ssh_keygen:
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257       ssh_keygen_exec_t
258
259       -  Set files with the ssh_keygen_exec_t type, if you want to transition
260       an executable to the ssh_keygen_t domain.
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264       ssh_keygen_tmp_t
265
266       - Set files with the ssh_keygen_tmp_t type, if you want  to  store  ssh
267       keygen temporary files in the /tmp directories.
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271       Note:  File context can be temporarily modified with the chcon command.
272       If you want to permanently change the file context you need to use  the
273       semanage fcontext command.  This will modify the SELinux labeling data‐
274       base.  You will need to use restorecon to apply the labels.
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COMMANDS

278       semanage fcontext can also be used to manipulate default  file  context
279       mappings.
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281       semanage  permissive  can  also  be used to manipulate whether or not a
282       process type is permissive.
283
284       semanage module can also be used to enable/disable/install/remove  pol‐
285       icy modules.
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287       semanage boolean can also be used to manipulate the booleans
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289
290       system-config-selinux is a GUI tool available to customize SELinux pol‐
291       icy settings.
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AUTHOR

295       This manual page was auto-generated using sepolicy manpage .
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