ping_selinux(8)

1ping_selinux(8)               SELinux Policy ping              ping_selinux(8)
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NAME

6       ping_selinux - Security Enhanced Linux Policy for the ping processes
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DESCRIPTION

9       Security-Enhanced  Linux secures the ping processes via flexible manda‐
10       tory access control.
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12       The ping processes execute with the ping_t SELinux type. You can  check
13       if  you  have  these processes running by executing the ps command with
14       the -Z qualifier.
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16       For example:
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18       ps -eZ | grep ping_t
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ENTRYPOINTS

23       The ping_t SELinux type can be entered via the ping_exec_t file type.
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25       The default entrypoint paths for the ping_t domain are the following:
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27       /bin/ping.*, /usr/sbin/fping.*, /usr/sbin/hping2, /usr/sbin/send_arp
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PROCESS TYPES

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

50       SELinux policy is customizable based on least  access  required.   ping
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run ping with the tightest access possible.
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56       If you want to allow all daemons the ability to  read/write  terminals,
57       you  must  turn  on  the  allow_daemons_use_tty  boolean.  Disabled  by
58       default.
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60       setsebool -P allow_daemons_use_tty 1
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64       If you want to allow all domains to use other domains file descriptors,
65       you must turn on the allow_domain_fd_use boolean. Enabled by default.
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67       setsebool -P allow_domain_fd_use 1
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71       If  you  want  to allow confined applications to run with kerberos, you
72       must turn on the allow_kerberos boolean. Enabled by default.
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74       setsebool -P allow_kerberos 1
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78       If you want to allow sysadm to debug or ptrace all processes, you  must
79       turn on the allow_ptrace boolean. Disabled by default.
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81       setsebool -P allow_ptrace 1
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85       If  you  want  to  allow  system  to run with NIS, you must turn on the
86       allow_ypbind boolean. Disabled by default.
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88       setsebool -P allow_ypbind 1
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92       If you want to allow all domains to have the kernel load  modules,  you
93       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
94       default.
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96       setsebool -P domain_kernel_load_modules 1
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100       If you want to allow all domains to execute in fips_mode, you must turn
101       on the fips_mode boolean. Enabled by default.
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103       setsebool -P fips_mode 1
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107       If you want to enable reading of urandom for all domains, you must turn
108       on the global_ssp boolean. Disabled by default.
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110       setsebool -P global_ssp 1
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114       If you want to allow confined applications to use nscd  shared  memory,
115       you must turn on the nscd_use_shm boolean. Enabled by default.
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117       setsebool -P nscd_use_shm 1
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121       If  you want to control users use of ping and traceroute, you must turn
122       on the user_ping boolean. Enabled by default.
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124       setsebool -P user_ping 1
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PORT TYPES

129       SELinux defines port types to represent TCP and UDP ports.
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131       You can see the types associated with a port  by  using  the  following
132       command:
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134       semanage port -l
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137       Policy  governs  the  access  confined  processes  have to these ports.
138       SELinux ping policy is very flexible allowing users to setup their ping
139       processes in as secure a method as possible.
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141       The following port types are defined for ping:
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143
144       pingd_port_t
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148       Default Defined Ports:
149                 tcp 9125
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MANAGED FILES

152       The  SELinux process type ping_t can manage files labeled with the fol‐
153       lowing file types.  The paths listed are the default  paths  for  these
154       file types.  Note the processes UID still need to have DAC permissions.
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156       initrc_tmp_t
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159       mnt_t
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161            /mnt(/[^/]*)
162            /mnt(/[^/]*)?
163            /rhev(/[^/]*)?
164            /media(/[^/]*)
165            /media(/[^/]*)?
166            /etc/rhgb(/.*)?
167            /media/.hal-.*
168            /net
169            /afs
170            /rhev
171            /misc
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173       tmp_t
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175            /tmp
176            /usr/tmp
177            /var/tmp
178            /tmp-inst
179            /var/tmp-inst
180            /var/tmp/vi.recover
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FILE CONTEXTS

184       SELinux requires files to have an extended attribute to define the file
185       type.
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187       You can see the context of a file using the -Z option to ls
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189       Policy governs the access  confined  processes  have  to  these  files.
190       SELinux ping policy is very flexible allowing users to setup their ping
191       processes in as secure a method as possible.
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193       STANDARD FILE CONTEXT
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195       SELinux defines the file context types for the ping, if you  wanted  to
196       store  files  with  these types in a diffent paths, you need to execute
197       the semanage command  to  sepecify  alternate  labeling  and  then  use
198       restorecon to put the labels on disk.
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200       semanage fcontext -a -t pingd_modules_t '/srv/myping_content(/.*)?'
201       restorecon -R -v /srv/myping_content
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203       Note:  SELinux  often  uses  regular expressions to specify labels that
204       match multiple files.
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206       The following file types are defined for ping:
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210       ping_exec_t
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212       - Set files with the ping_exec_t type, if you  want  to  transition  an
213       executable to the ping_t domain.
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216       Paths:
217            /bin/ping.*,          /usr/sbin/fping.*,         /usr/sbin/hping2,
218            /usr/sbin/send_arp
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221       pingd_etc_t
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223       - Set files with the pingd_etc_t type, if you want to store pingd files
224       in the /etc directories.
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228       pingd_exec_t
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230       -  Set  files  with the pingd_exec_t type, if you want to transition an
231       executable to the pingd_t domain.
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235       pingd_initrc_exec_t
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237       - Set files with the pingd_initrc_exec_t type, if you want  to  transi‐
238       tion an executable to the pingd_initrc_t domain.
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242       pingd_modules_t
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244       -  Set  files  with  the pingd_modules_t type, if you want to treat the
245       files as pingd modules.
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249       Note: File context can be temporarily modified with the chcon  command.
250       If  you want to permanently change the file context you need to use the
251       semanage fcontext command.  This will modify the SELinux labeling data‐
252       base.  You will need to use restorecon to apply the labels.
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COMMANDS

256       semanage  fcontext  can also be used to manipulate default file context
257       mappings.
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259       semanage permissive can also be used to manipulate  whether  or  not  a
260       process type is permissive.
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262       semanage  module can also be used to enable/disable/install/remove pol‐
263       icy modules.
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265       semanage port can also be used to manipulate the port definitions
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267       semanage boolean can also be used to manipulate the booleans
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269
270       system-config-selinux is a GUI tool available to customize SELinux pol‐
271       icy settings.
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AUTHOR

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