1krb5kdc_selinux(8) SELinux Policy krb5kdc krb5kdc_selinux(8)
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6 krb5kdc_selinux - Security Enhanced Linux Policy for the krb5kdc pro‐
7 cesses
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10 Security-Enhanced Linux secures the krb5kdc processes via flexible
11 mandatory access control.
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13 The krb5kdc processes execute with the krb5kdc_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 krb5kdc_t
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24 The krb5kdc_t SELinux type can be entered via the krb5kdc_exec_t file
25 type.
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27 The default entrypoint paths for the krb5kdc_t domain are the follow‐
28 ing:
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30 /usr/(kerberos/)?sbin/krb5kdc
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33 SELinux defines process types (domains) for each process running on the
34 system
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36 You can see the context of a process using the -Z option to ps
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38 Policy governs the access confined processes have to files. SELinux
39 krb5kdc policy is very flexible allowing users to setup their krb5kdc
40 processes in as secure a method as possible.
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42 The following process types are defined for krb5kdc:
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44 krb5kdc_t
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46 Note: semanage permissive -a krb5kdc_t can be used to make the process
47 type krb5kdc_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
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53 SELinux policy is customizable based on least access required. krb5kdc
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run krb5kdc with the tightest access possi‐
56 ble.
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60 If you want to dontaudit all daemons scheduling requests (setsched,
61 sys_nice), you must turn on the daemons_dontaudit_scheduling boolean.
62 Enabled by default.
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64 setsebool -P daemons_dontaudit_scheduling 1
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68 If you want to allow all domains to execute in fips_mode, you must turn
69 on the fips_mode boolean. Enabled by default.
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71 setsebool -P fips_mode 1
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75 If you want to allow system to run with NIS, you must turn on the
76 nis_enabled boolean. Disabled by default.
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78 setsebool -P nis_enabled 1
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83 The SELinux process type krb5kdc_t can manage files labeled with the
84 following file types. The paths listed are the default paths for these
85 file types. Note the processes UID still need to have DAC permissions.
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87 cluster_conf_t
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89 /etc/cluster(/.*)?
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91 cluster_var_lib_t
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93 /var/lib/pcsd(/.*)?
94 /var/lib/cluster(/.*)?
95 /var/lib/openais(/.*)?
96 /var/lib/pengine(/.*)?
97 /var/lib/corosync(/.*)?
98 /usr/lib/heartbeat(/.*)?
99 /var/lib/heartbeat(/.*)?
100 /var/lib/pacemaker(/.*)?
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102 cluster_var_run_t
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104 /var/run/crm(/.*)?
105 /var/run/cman_.*
106 /var/run/rsctmp(/.*)?
107 /var/run/aisexec.*
108 /var/run/heartbeat(/.*)?
109 /var/run/pcsd-ruby.socket
110 /var/run/corosync-qnetd(/.*)?
111 /var/run/corosync-qdevice(/.*)?
112 /var/run/corosync.pid
113 /var/run/cpglockd.pid
114 /var/run/rgmanager.pid
115 /var/run/cluster/rgmanager.sk
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117 krb5_host_rcache_t
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119 /var/tmp/krb5_0.rcache2
120 /var/cache/krb5rcache(/.*)?
121 /var/tmp/nfs_0
122 /var/tmp/DNS_25
123 /var/tmp/host_0
124 /var/tmp/imap_0
125 /var/tmp/HTTP_23
126 /var/tmp/HTTP_48
127 /var/tmp/ldap_55
128 /var/tmp/ldap_487
129 /var/tmp/ldapmap1_0
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131 krb5kdc_lock_t
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133 /var/kerberos/krb5kdc/principal.*.ok
134 /var/kerberos/krb5kdc/from_master.*
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136 krb5kdc_log_t
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138 /var/log/krb5kdc.log.*
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140 krb5kdc_principal_t
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142 /etc/krb5kdc/principal.*
143 /usr/var/krb5kdc/principal.*
144 /var/kerberos/krb5kdc/principal.*
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146 krb5kdc_tmp_t
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149 krb5kdc_var_lib_t
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151 /var/lib/kdcproxy(/.*)?
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153 krb5kdc_var_run_t
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155 /var/run/krb5kdc(/.*)?
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157 root_t
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159 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
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161 /initrd
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163 security_t
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165 /selinux
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169 SELinux requires files to have an extended attribute to define the file
170 type.
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172 You can see the context of a file using the -Z option to ls
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174 Policy governs the access confined processes have to these files.
175 SELinux krb5kdc policy is very flexible allowing users to setup their
176 krb5kdc processes in as secure a method as possible.
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178 EQUIVALENCE DIRECTORIES
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181 krb5kdc policy stores data with multiple different file context types
182 under the /var/kerberos/krb5kdc directory. If you would like to store
183 the data in a different directory you can use the semanage command to
184 create an equivalence mapping. If you wanted to store this data under
185 the /srv directory you would execute the following command:
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187 semanage fcontext -a -e /var/kerberos/krb5kdc /srv/krb5kdc
188 restorecon -R -v /srv/krb5kdc
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190 STANDARD FILE CONTEXT
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192 SELinux defines the file context types for the krb5kdc, if you wanted
193 to store files with these types in a different paths, you need to exe‐
194 cute the semanage command to specify alternate labeling and then use
195 restorecon to put the labels on disk.
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197 semanage fcontext -a -t krb5kdc_conf_t '/srv/krb5kdc/content(/.*)?'
198 restorecon -R -v /srv/mykrb5kdc_content
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200 Note: SELinux often uses regular expressions to specify labels that
201 match multiple files.
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203 The following file types are defined for krb5kdc:
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207 krb5kdc_conf_t
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209 - Set files with the krb5kdc_conf_t type, if you want to treat the
210 files as krb5kdc configuration data, usually stored under the /etc di‐
211 rectory.
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214 Paths:
215 /etc/krb5kdc(/.*)?, /usr/var/krb5kdc(/.*)?, /var/ker‐
216 beros/krb5kdc(/.*)?
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219 krb5kdc_exec_t
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221 - Set files with the krb5kdc_exec_t type, if you want to transition an
222 executable to the krb5kdc_t domain.
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226 krb5kdc_lock_t
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228 - Set files with the krb5kdc_lock_t type, if you want to treat the
229 files as krb5kdc lock data, stored under the /var/lock directory
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232 Paths:
233 /var/kerberos/krb5kdc/principal.*.ok, /var/ker‐
234 beros/krb5kdc/from_master.*
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237 krb5kdc_log_t
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239 - Set files with the krb5kdc_log_t type, if you want to treat the data
240 as krb5kdc log data, usually stored under the /var/log directory.
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244 krb5kdc_principal_t
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246 - Set files with the krb5kdc_principal_t type, if you want to treat the
247 files as krb5kdc principal data.
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250 Paths:
251 /etc/krb5kdc/principal.*, /usr/var/krb5kdc/principal.*, /var/ker‐
252 beros/krb5kdc/principal.*
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255 krb5kdc_tmp_t
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257 - Set files with the krb5kdc_tmp_t type, if you want to store krb5kdc
258 temporary files in the /tmp directories.
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262 krb5kdc_var_lib_t
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264 - Set files with the krb5kdc_var_lib_t type, if you want to store the
265 krb5kdc files under the /var/lib directory.
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269 krb5kdc_var_run_t
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271 - Set files with the krb5kdc_var_run_t type, if you want to store the
272 krb5kdc files under the /run or /var/run directory.
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276 Note: File context can be temporarily modified with the chcon command.
277 If you want to permanently change the file context you need to use the
278 semanage fcontext command. This will modify the SELinux labeling data‐
279 base. You will need to use restorecon to apply the labels.
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283 semanage fcontext can also be used to manipulate default file context
284 mappings.
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286 semanage permissive can also be used to manipulate whether or not a
287 process type is permissive.
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289 semanage module can also be used to enable/disable/install/remove pol‐
290 icy modules.
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292 semanage boolean can also be used to manipulate the booleans
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295 system-config-selinux is a GUI tool available to customize SELinux pol‐
296 icy settings.
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300 This manual page was auto-generated using sepolicy manpage .
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304 selinux(8), krb5kdc(8), semanage(8), restorecon(8), chcon(1), sepol‐
305 icy(8), setsebool(8)
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309krb5kdc 23-10-20 krb5kdc_selinux(8)