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
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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.
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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 all domains to execute in fips_mode, you must turn
57       on the fips_mode boolean. Enabled by default.
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59       setsebool -P fips_mode 1
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PORT TYPES

64       SELinux defines port types to represent TCP and UDP ports.
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66       You  can  see  the  types associated with a port by using the following
67       command:
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69       semanage port -l
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71
72       Policy governs the access  confined  processes  have  to  these  ports.
73       SELinux tcsd policy is very flexible allowing users to setup their tcsd
74       processes in as secure a method as possible.
75
76       The following port types are defined for tcsd:
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78
79       tcs_port_t
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83       Default Defined Ports:
84                 tcp 30003
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MANAGED FILES

87       The SELinux process type tcsd_t can manage files labeled with the  fol‐
88       lowing  file  types.   The paths listed are the default paths for these
89       file types.  Note the processes UID still need to have DAC permissions.
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91       cluster_conf_t
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93            /etc/cluster(/.*)?
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95       cluster_var_lib_t
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97            /var/lib/pcsd(/.*)?
98            /var/lib/cluster(/.*)?
99            /var/lib/openais(/.*)?
100            /var/lib/pengine(/.*)?
101            /var/lib/corosync(/.*)?
102            /usr/lib/heartbeat(/.*)?
103            /var/lib/heartbeat(/.*)?
104            /var/lib/pacemaker(/.*)?
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106       cluster_var_run_t
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108            /var/run/crm(/.*)?
109            /var/run/cman_.*
110            /var/run/rsctmp(/.*)?
111            /var/run/aisexec.*
112            /var/run/heartbeat(/.*)?
113            /var/run/corosync-qnetd(/.*)?
114            /var/run/corosync-qdevice(/.*)?
115            /var/run/corosync.pid
116            /var/run/cpglockd.pid
117            /var/run/rgmanager.pid
118            /var/run/cluster/rgmanager.sk
119
120       root_t
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122            /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
123            /
124            /initrd
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126       tcsd_var_lib_t
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128            /var/lib/tpm(/.*)?
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130

FILE CONTEXTS

132       SELinux requires files to have an extended attribute to define the file
133       type.
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135       You can see the context of a file using the -Z option to ls
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137       Policy  governs  the  access  confined  processes  have to these files.
138       SELinux tcsd policy is very flexible allowing users to setup their tcsd
139       processes in as secure a method as possible.
140
141       STANDARD FILE CONTEXT
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143       SELinux  defines  the file context types for the tcsd, if you wanted to
144       store files with these types in a diffent paths, you  need  to  execute
145       the  semanage  command  to  sepecify  alternate  labeling  and then use
146       restorecon to put the labels on disk.
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148       semanage fcontext -a -t tcsd_var_lib_t '/srv/mytcsd_content(/.*)?'
149       restorecon -R -v /srv/mytcsd_content
150
151       Note: SELinux often uses regular expressions  to  specify  labels  that
152       match multiple files.
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154       The following file types are defined for tcsd:
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156
157
158       tcsd_exec_t
159
160       -  Set  files  with  the tcsd_exec_t type, if you want to transition an
161       executable to the tcsd_t domain.
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165       tcsd_initrc_exec_t
166
167       - Set files with the tcsd_initrc_exec_t type, if you want to transition
168       an executable to the tcsd_initrc_t domain.
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172       tcsd_var_lib_t
173
174       - Set files with the tcsd_var_lib_t type, if you want to store the tcsd
175       files under the /var/lib directory.
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179       Note: File context can be temporarily modified with the chcon  command.
180       If  you want to permanently change the file context you need to use the
181       semanage fcontext command.  This will modify the SELinux labeling data‐
182       base.  You will need to use restorecon to apply the labels.
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COMMANDS

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

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

209       selinux(8), tcsd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
210       setsebool(8)
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214tcsd                               21-03-26                    tcsd_selinux(8)
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