1checkpc_selinux(8)          SELinux Policy checkpc          checkpc_selinux(8)
2
3
4

NAME

6       checkpc_selinux  -  Security Enhanced Linux Policy for the checkpc pro‐
7       cesses
8

DESCRIPTION

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

ENTRYPOINTS

24       The  checkpc_t  SELinux type can be entered via the checkpc_exec_t file
25       type.
26
27       The default entrypoint paths for the checkpc_t domain are  the  follow‐
28       ing:
29
30       /usr/sbin/checkpc
31

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       checkpc  policy  is very flexible allowing users to setup their checkpc
40       processes in as secure a method as possible.
41
42       The following process types are defined for checkpc:
43
44       checkpc_t
45
46       Note: semanage permissive -a checkpc_t can be used to make the  process
47       type  checkpc_t  permissive. SELinux does not deny access to permissive
48       process types, but the AVC (SELinux denials) messages are still  gener‐
49       ated.
50
51

BOOLEANS

53       SELinux policy is customizable based on least access required.  checkpc
54       policy is extremely flexible and has several booleans that allow you to
55       manipulate  the  policy and run checkpc with the tightest access possi‐
56       ble.
57
58
59
60       If you want to allow all daemons the ability to  read/write  terminals,
61       you must turn on the daemons_use_tty boolean. Disabled by default.
62
63       setsebool -P daemons_use_tty 1
64
65
66
67       If  you  want  to deny any process from ptracing or debugging any other
68       processes, you  must  turn  on  the  deny_ptrace  boolean.  Enabled  by
69       default.
70
71       setsebool -P deny_ptrace 1
72
73
74
75       If  you  want  to  allow  any  process  to mmap any file on system with
76       attribute file_type, you must turn on the  domain_can_mmap_files  bool‐
77       ean. Enabled by default.
78
79       setsebool -P domain_can_mmap_files 1
80
81
82
83       If  you want to allow all domains write to kmsg_device, while kernel is
84       executed with systemd.log_target=kmsg parameter, you must turn  on  the
85       domain_can_write_kmsg boolean. Disabled by default.
86
87       setsebool -P domain_can_write_kmsg 1
88
89
90
91       If you want to allow all domains to use other domains file descriptors,
92       you must turn on the domain_fd_use boolean. Enabled by default.
93
94       setsebool -P domain_fd_use 1
95
96
97
98       If you want to allow all domains to have the kernel load  modules,  you
99       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
100       default.
101
102       setsebool -P domain_kernel_load_modules 1
103
104
105
106       If you want to allow all domains to execute in fips_mode, you must turn
107       on the fips_mode boolean. Enabled by default.
108
109       setsebool -P fips_mode 1
110
111
112
113       If you want to enable reading of urandom for all domains, you must turn
114       on the global_ssp boolean. Disabled by default.
115
116       setsebool -P global_ssp 1
117
118
119
120       If you want to allow system to run with  NIS,  you  must  turn  on  the
121       nis_enabled boolean. Disabled by default.
122
123       setsebool -P nis_enabled 1
124
125
126

MANAGED FILES

128       The  SELinux  process  type checkpc_t can manage files labeled with the
129       following file types.  The paths listed are the default paths for these
130       file types.  Note the processes UID still need to have DAC permissions.
131
132       print_spool_t
133
134            /var/spool/lpd(/.*)?
135            /var/spool/cups(/.*)?
136            /var/spool/cups-pdf(/.*)?
137
138

FILE CONTEXTS

140       SELinux requires files to have an extended attribute to define the file
141       type.
142
143       You can see the context of a file using the -Z option to ls
144
145       Policy governs the access  confined  processes  have  to  these  files.
146       SELinux  checkpc  policy is very flexible allowing users to setup their
147       checkpc processes in as secure a method as possible.
148
149       STANDARD FILE CONTEXT
150
151       SELinux defines the file context types for the checkpc, if  you  wanted
152       to store files with these types in a diffent paths, you need to execute
153       the semanage command  to  sepecify  alternate  labeling  and  then  use
154       restorecon to put the labels on disk.
155
156       semanage fcontext -a -t checkpc_log_t '/srv/mycheckpc_content(/.*)?'
157       restorecon -R -v /srv/mycheckpc_content
158
159       Note:  SELinux  often  uses  regular expressions to specify labels that
160       match multiple files.
161
162       The following file types are defined for checkpc:
163
164
165
166       checkpc_exec_t
167
168       - Set files with the checkpc_exec_t type, if you want to transition  an
169       executable to the checkpc_t domain.
170
171
172
173       checkpc_log_t
174
175       -  Set files with the checkpc_log_t type, if you want to treat the data
176       as checkpc log data, usually stored under the /var/log directory.
177
178
179
180       Note: File context can be temporarily modified with the chcon  command.
181       If  you want to permanently change the file context you need to use the
182       semanage fcontext command.  This will modify the SELinux labeling data‐
183       base.  You will need to use restorecon to apply the labels.
184
185

COMMANDS

187       semanage  fcontext  can also be used to manipulate default file context
188       mappings.
189
190       semanage permissive can also be used to manipulate  whether  or  not  a
191       process type is permissive.
192
193       semanage  module can also be used to enable/disable/install/remove pol‐
194       icy modules.
195
196       semanage boolean can also be used to manipulate the booleans
197
198
199       system-config-selinux is a GUI tool available to customize SELinux pol‐
200       icy settings.
201
202

AUTHOR

204       This manual page was auto-generated using sepolicy manpage .
205
206

SEE ALSO

208       selinux(8),  checkpc(8),  semanage(8),  restorecon(8), chcon(1), sepol‐
209       icy(8) , setsebool(8)
210
211
212
213checkpc                            19-04-25                 checkpc_selinux(8)
Impressum