1tcsd_selinux(8)               SELinux Policy tcsd              tcsd_selinux(8)
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NAME

6       tcsd_selinux - Security Enhanced Linux Policy for the tcsd processes
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DESCRIPTION

9       Security-Enhanced  Linux secures the tcsd processes via flexible manda‐
10       tory access control.
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12       The tcsd processes execute with the tcsd_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 tcsd_t
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20
21

ENTRYPOINTS

23       The tcsd_t SELinux type can be entered via the tcsd_exec_t file type.
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25       The default entrypoint paths for the tcsd_t domain are the following:
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27       /usr/sbin/tcsd
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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       tcsd policy is very flexible allowing users to setup  their  tcsd  pro‐
37       cesses in as secure a method as possible.
38
39       The following process types are defined for tcsd:
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41       tcsd_t
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43       Note:  semanage  permissive  -a  tcsd_t can be used to make the process
44       type tcsd_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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48

BOOLEANS

50       SELinux policy is customizable based on least  access  required.   tcsd
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run tcsd with the tightest access possible.
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56       If you want to allow users to resolve user passwd entries directly from
57       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
58       gin_nsswitch_use_ldap boolean. Disabled by default.
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60       setsebool -P authlogin_nsswitch_use_ldap 1
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64       If you want to allow all domains to execute in fips_mode, you must turn
65       on the fips_mode boolean. Enabled by default.
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67       setsebool -P fips_mode 1
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71       If  you  want  to allow confined applications to run with kerberos, you
72       must turn on the kerberos_enabled boolean. Enabled by default.
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74       setsebool -P kerberos_enabled 1
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78       If you want to allow system to run with  NIS,  you  must  turn  on  the
79       nis_enabled boolean. Disabled by default.
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81       setsebool -P nis_enabled 1
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84
85       If  you  want to allow confined applications to use nscd shared memory,
86       you must turn on the nscd_use_shm boolean. Enabled by default.
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88       setsebool -P nscd_use_shm 1
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91

PORT TYPES

93       SELinux defines port types to represent TCP and UDP ports.
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95       You can see the types associated with a port  by  using  the  following
96       command:
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98       semanage port -l
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100
101       Policy  governs  the  access  confined  processes  have to these ports.
102       SELinux tcsd policy is very flexible allowing users to setup their tcsd
103       processes in as secure a method as possible.
104
105       The following port types are defined for tcsd:
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107
108       tcs_port_t
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110
111
112       Default Defined Ports:
113                 tcp 30003
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MANAGED FILES

116       The  SELinux process type tcsd_t can manage files labeled with the fol‐
117       lowing file types.  The paths listed are the default  paths  for  these
118       file types.  Note the processes UID still need to have DAC permissions.
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120       cluster_conf_t
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122            /etc/cluster(/.*)?
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124       cluster_var_lib_t
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126            /var/lib/pcsd(/.*)?
127            /var/lib/cluster(/.*)?
128            /var/lib/openais(/.*)?
129            /var/lib/pengine(/.*)?
130            /var/lib/corosync(/.*)?
131            /usr/lib/heartbeat(/.*)?
132            /var/lib/heartbeat(/.*)?
133            /var/lib/pacemaker(/.*)?
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135       cluster_var_run_t
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137            /var/run/crm(/.*)?
138            /var/run/cman_.*
139            /var/run/rsctmp(/.*)?
140            /var/run/aisexec.*
141            /var/run/heartbeat(/.*)?
142            /var/run/corosync-qnetd(/.*)?
143            /var/run/corosync-qdevice(/.*)?
144            /var/run/corosync.pid
145            /var/run/cpglockd.pid
146            /var/run/rgmanager.pid
147            /var/run/cluster/rgmanager.sk
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149       root_t
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151            /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
152            /
153            /initrd
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155       tcsd_var_lib_t
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157            /var/lib/tpm(/.*)?
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159

FILE CONTEXTS

161       SELinux requires files to have an extended attribute to define the file
162       type.
163
164       You can see the context of a file using the -Z option to ls
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166       Policy governs the access  confined  processes  have  to  these  files.
167       SELinux tcsd policy is very flexible allowing users to setup their tcsd
168       processes in as secure a method as possible.
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170       STANDARD FILE CONTEXT
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172       SELinux defines the file context types for the tcsd, if you  wanted  to
173       store  files  with  these types in a diffent paths, you need to execute
174       the semanage command  to  sepecify  alternate  labeling  and  then  use
175       restorecon to put the labels on disk.
176
177       semanage fcontext -a -t tcsd_var_lib_t '/srv/mytcsd_content(/.*)?'
178       restorecon -R -v /srv/mytcsd_content
179
180       Note:  SELinux  often  uses  regular expressions to specify labels that
181       match multiple files.
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183       The following file types are defined for tcsd:
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186
187       tcsd_exec_t
188
189       - Set files with the tcsd_exec_t type, if you  want  to  transition  an
190       executable to the tcsd_t domain.
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192
193
194       tcsd_initrc_exec_t
195
196       - Set files with the tcsd_initrc_exec_t type, if you want to transition
197       an executable to the tcsd_initrc_t domain.
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201       tcsd_var_lib_t
202
203       - Set files with the tcsd_var_lib_t type, if you want to store the tcsd
204       files under the /var/lib directory.
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208       Note:  File context can be temporarily modified with the chcon command.
209       If you want to permanently change the file context you need to use  the
210       semanage fcontext command.  This will modify the SELinux labeling data‐
211       base.  You will need to use restorecon to apply the labels.
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COMMANDS

215       semanage fcontext can also be used to manipulate default  file  context
216       mappings.
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218       semanage  permissive  can  also  be used to manipulate whether or not a
219       process type is permissive.
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221       semanage module can also be used to enable/disable/install/remove  pol‐
222       icy modules.
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224       semanage port can also be used to manipulate the port definitions
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226       semanage boolean can also be used to manipulate the booleans
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228
229       system-config-selinux is a GUI tool available to customize SELinux pol‐
230       icy settings.
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AUTHOR

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

238       selinux(8), tcsd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
239       setsebool(8)
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243tcsd                               19-10-08                    tcsd_selinux(8)
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