rshd_selinux(8)

1rshd_selinux(8)               SELinux Policy rshd              rshd_selinux(8)
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NAME

6       rshd_selinux - Security Enhanced Linux Policy for the rshd processes
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DESCRIPTION

9       Security-Enhanced  Linux secures the rshd processes via flexible manda‐
10       tory access control.
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12       The rshd processes execute with the rshd_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 rshd_t
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ENTRYPOINTS

23       The rshd_t SELinux type can be entered via the rshd_exec_t file type.
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25       The default entrypoint paths for the rshd_t domain are the following:
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27       /usr/sbin/in.rshd, /usr/sbin/in.rexecd, /usr/kerberos/sbin/kshd
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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       rshd policy is very flexible allowing users to setup  their  rshd  pro‐
37       cesses in as secure a method as possible.
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39       The following process types are defined for rshd:
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41       rshd_t
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43       Note:  semanage  permissive  -a  rshd_t can be used to make the process
44       type rshd_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.   rshd
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run rshd 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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63       If  you  want  to allow confined applications to run with kerberos, you
64       must turn on the kerberos_enabled boolean. Enabled by default.
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66       setsebool -P kerberos_enabled 1
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70       If you want to allow system to run with  NIS,  you  must  turn  on  the
71       nis_enabled boolean. Disabled by default.
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73       setsebool -P nis_enabled 1
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77       If you want to enable polyinstantiated directory support, you must turn
78       on the polyinstantiation_enabled boolean. Disabled by default.
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80       setsebool -P polyinstantiation_enabled 1
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PORT TYPES

85       SELinux defines port types to represent TCP and UDP ports.
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87       You can see the types associated with a port  by  using  the  following
88       command:
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90       semanage port -l
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93       Policy  governs  the  access  confined  processes  have to these ports.
94       SELinux rshd policy is very flexible allowing users to setup their rshd
95       processes in as secure a method as possible.
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97       The following port types are defined for rshd:
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100       rsh_port_t
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104       Default Defined Ports:
105                 tcp 514
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MANAGED FILES

108       The  SELinux process type rshd_t can manage files labeled with the fol‐
109       lowing file types.  The paths listed are the default  paths  for  these
110       file types.  Note the processes UID still need to have DAC permissions.
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112       auth_cache_t
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114            /var/cache/coolkey(/.*)?
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116       auth_home_t
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118            /root/.yubico(/.*)?
119            /root/.config/Yubico(/.*)?
120            /root/.google_authenticator
121            /root/.google_authenticator~
122            /home/[^/]+/.yubico(/.*)?
123            /home/[^/]+/.config/Yubico(/.*)?
124            /home/[^/]+/.google_authenticator
125            /home/[^/]+/.google_authenticator~
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127       faillog_t
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129            /var/log/btmp.*
130            /var/log/faillog.*
131            /var/log/tallylog.*
132            /var/run/faillock(/.*)?
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134       initrc_var_run_t
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136            /var/run/utmp
137            /var/run/random-seed
138            /var/run/runlevel.dir
139            /var/run/setmixer_flag
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141       krb5_host_rcache_t
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143            /var/tmp/krb5_0.rcache2
144            /var/cache/krb5rcache(/.*)?
145            /var/tmp/nfs_0
146            /var/tmp/DNS_25
147            /var/tmp/host_0
148            /var/tmp/imap_0
149            /var/tmp/HTTP_23
150            /var/tmp/HTTP_48
151            /var/tmp/ldap_55
152            /var/tmp/ldap_487
153            /var/tmp/ldapmap1_0
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155       lastlog_t
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157            /var/log/lastlog.*
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159       pam_var_run_t
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161            /var/(db|adm)/sudo(/.*)?
162            /var/lib/sudo(/.*)?
163            /var/run/sudo(/.*)?
164            /var/run/pam_ssh(/.*)?
165            /var/run/sepermit(/.*)?
166            /var/run/pam_mount(/.*)?
167            /var/run/pam_timestamp(/.*)?
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169       security_t
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171            /selinux
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173       user_tmp_t
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175            /dev/shm/mono.*
176            /var/run/user(/.*)?
177            /tmp/.ICE-unix(/.*)?
178            /tmp/.X11-unix(/.*)?
179            /dev/shm/pulse-shm.*
180            /tmp/.X0-lock
181            /tmp/hsperfdata_root
182            /var/tmp/hsperfdata_root
183            /home/[^/]+/tmp
184            /home/[^/]+/.tmp
185            /tmp/gconfd-[^/]+
186
187       user_tmp_type
188
189            all user tmp files
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191       var_auth_t
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193            /var/ace(/.*)?
194            /var/rsa(/.*)?
195            /var/lib/abl(/.*)?
196            /var/lib/rsa(/.*)?
197            /var/lib/pam_ssh(/.*)?
198            /var/lib/pam_shield(/.*)?
199            /var/opt/quest/vas/vasd(/.*)?
200            /var/lib/google-authenticator(/.*)?
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202       wtmp_t
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204            /var/log/wtmp.*
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FILE CONTEXTS

208       SELinux requires files to have an extended attribute to define the file
209       type.
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211       You can see the context of a file using the -Z option to ls
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213       Policy governs the access  confined  processes  have  to  these  files.
214       SELinux rshd policy is very flexible allowing users to setup their rshd
215       processes in as secure a method as possible.
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217       STANDARD FILE CONTEXT
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219       SELinux defines the file context types for the rshd, if you  wanted  to
220       store  files  with  these types in a diffent paths, you need to execute
221       the semanage command to sepecify alternate labeling and  then  use  re‐
222       storecon to put the labels on disk.
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224       semanage fcontext -a -t rshd_keytab_t '/srv/myrshd_content(/.*)?'
225       restorecon -R -v /srv/myrshd_content
226
227       Note:  SELinux  often  uses  regular expressions to specify labels that
228       match multiple files.
229
230       The following file types are defined for rshd:
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234       rshd_exec_t
235
236       - Set files with the rshd_exec_t type, if you want to transition an ex‐
237       ecutable to the rshd_t domain.
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239
240       Paths:
241            /usr/sbin/in.rshd, /usr/sbin/in.rexecd, /usr/kerberos/sbin/kshd
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244       rshd_keytab_t
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246       - Set files with the rshd_keytab_t type, if you want to treat the files
247       as kerberos keytab files.
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251       Note: File context can be temporarily modified with the chcon  command.
252       If  you want to permanently change the file context you need to use the
253       semanage fcontext command.  This will modify the SELinux labeling data‐
254       base.  You will need to use restorecon to apply the labels.
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COMMANDS

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

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