ypserv_selinux(8)

1ypserv_selinux(8)            SELinux Policy ypserv           ypserv_selinux(8)
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NAME

6       ypserv_selinux  -  Security  Enhanced  Linux Policy for the ypserv pro‐
7       cesses
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DESCRIPTION

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

24       The  ypserv_t  SELinux  type  can be entered via the ypserv_exec_t file
25       type.
26
27       The default entrypoint paths for the ypserv_t domain are the following:
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29       /usr/sbin/ypserv
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PROCESS TYPES

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

52       SELinux policy is customizable based on least access required.   ypserv
53       policy is extremely flexible and has several booleans that allow you to
54       manipulate the policy and run ypserv with the tightest access possible.
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58       If you want to allow all daemons to write corefiles to /, you must turn
59       on the daemons_dump_core boolean. Disabled by default.
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61       setsebool -P daemons_dump_core 1
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65       If  you  want  to enable cluster mode for daemons, you must turn on the
66       daemons_enable_cluster_mode boolean. Enabled by default.
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68       setsebool -P daemons_enable_cluster_mode 1
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72       If you want to allow all daemons to use tcp wrappers, you must turn  on
73       the daemons_use_tcp_wrapper boolean. Disabled by default.
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75       setsebool -P daemons_use_tcp_wrapper 1
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79       If  you  want to allow all daemons the ability to read/write terminals,
80       you must turn on the daemons_use_tty boolean. Disabled by default.
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82       setsebool -P daemons_use_tty 1
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86       If you want to deny any process from ptracing or  debugging  any  other
87       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
88       default.
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90       setsebool -P deny_ptrace 1
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94       If you want to allow any process  to  mmap  any  file  on  system  with
95       attribute  file_type,  you must turn on the domain_can_mmap_files bool‐
96       ean. Enabled by default.
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98       setsebool -P domain_can_mmap_files 1
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102       If you want to allow all domains write to kmsg_device, while kernel  is
103       executed  with  systemd.log_target=kmsg parameter, you must turn on the
104       domain_can_write_kmsg boolean. Disabled by default.
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106       setsebool -P domain_can_write_kmsg 1
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110       If you want to allow all domains to use other domains file descriptors,
111       you must turn on the domain_fd_use boolean. Enabled by default.
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113       setsebool -P domain_fd_use 1
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117       If  you  want to allow all domains to have the kernel load modules, you
118       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
119       default.
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121       setsebool -P domain_kernel_load_modules 1
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125       If you want to allow all domains to execute in fips_mode, you must turn
126       on the fips_mode boolean. Enabled by default.
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128       setsebool -P fips_mode 1
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132       If you want to enable reading of urandom for all domains, you must turn
133       on the global_ssp boolean. Disabled by default.
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135       setsebool -P global_ssp 1
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MANAGED FILES

140       The  SELinux  process  type  ypserv_t can manage files labeled with the
141       following file types.  The paths listed are the default paths for these
142       file types.  Note the processes UID still need to have DAC permissions.
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144       cluster_conf_t
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146            /etc/cluster(/.*)?
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148       cluster_var_lib_t
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150            /var/lib/pcsd(/.*)?
151            /var/lib/cluster(/.*)?
152            /var/lib/openais(/.*)?
153            /var/lib/pengine(/.*)?
154            /var/lib/corosync(/.*)?
155            /usr/lib/heartbeat(/.*)?
156            /var/lib/heartbeat(/.*)?
157            /var/lib/pacemaker(/.*)?
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159       cluster_var_run_t
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161            /var/run/crm(/.*)?
162            /var/run/cman_.*
163            /var/run/rsctmp(/.*)?
164            /var/run/aisexec.*
165            /var/run/heartbeat(/.*)?
166            /var/run/corosync-qnetd(/.*)?
167            /var/run/corosync-qdevice(/.*)?
168            /var/run/cpglockd.pid
169            /var/run/corosync.pid
170            /var/run/rgmanager.pid
171            /var/run/cluster/rgmanager.sk
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173       root_t
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175            /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
176            /
177            /initrd
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179       var_yp_t
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181            /var/yp(/.*)?
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183       ypserv_tmp_t
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186       ypserv_var_run_t
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188            /var/run/ypserv.*
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FILE CONTEXTS

192       SELinux requires files to have an extended attribute to define the file
193       type.
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195       You can see the context of a file using the -Z option to ls
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197       Policy governs the access  confined  processes  have  to  these  files.
198       SELinux  ypserv  policy  is very flexible allowing users to setup their
199       ypserv processes in as secure a method as possible.
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201       STANDARD FILE CONTEXT
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203       SELinux defines the file context types for the ypserv, if you wanted to
204       store  files  with  these types in a diffent paths, you need to execute
205       the semanage command  to  sepecify  alternate  labeling  and  then  use
206       restorecon to put the labels on disk.
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208       semanage fcontext -a -t ypserv_var_run_t '/srv/myypserv_content(/.*)?'
209       restorecon -R -v /srv/myypserv_content
210
211       Note:  SELinux  often  uses  regular expressions to specify labels that
212       match multiple files.
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214       The following file types are defined for ypserv:
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218       ypserv_conf_t
219
220       - Set files with the ypserv_conf_t type, if you want to treat the files
221       as ypserv configuration data, usually stored under the /etc directory.
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225       ypserv_exec_t
226
227       -  Set  files with the ypserv_exec_t type, if you want to transition an
228       executable to the ypserv_t domain.
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232       ypserv_tmp_t
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234       - Set files with the ypserv_tmp_t type, if you  want  to  store  ypserv
235       temporary files in the /tmp directories.
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239       ypserv_var_run_t
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241       -  Set  files  with the ypserv_var_run_t type, if you want to store the
242       ypserv files under the /run or /var/run directory.
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246       Note: File context can be temporarily modified with the chcon  command.
247       If  you want to permanently change the file context you need to use the
248       semanage fcontext command.  This will modify the SELinux labeling data‐
249       base.  You will need to use restorecon to apply the labels.
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COMMANDS

253       semanage  fcontext  can also be used to manipulate default file context
254       mappings.
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256       semanage permissive can also be used to manipulate  whether  or  not  a
257       process type is permissive.
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259       semanage  module can also be used to enable/disable/install/remove pol‐
260       icy modules.
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262       semanage boolean can also be used to manipulate the booleans
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264
265       system-config-selinux is a GUI tool available to customize SELinux pol‐
266       icy settings.
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AUTHOR

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