1cyrus_selinux(8) SELinux Policy cyrus cyrus_selinux(8)
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6 cyrus_selinux - Security Enhanced Linux Policy for the cyrus processes
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9 Security-Enhanced Linux secures the cyrus processes via flexible manda‐
10 tory access control.
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12 The cyrus processes execute with the cyrus_t SELinux type. You can
13 check if you have these processes running by executing the ps command
14 with the -Z qualifier.
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16 For example:
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18 ps -eZ | grep cyrus_t
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23 The cyrus_t SELinux type can be entered via the cyrus_exec_t file type.
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25 The default entrypoint paths for the cyrus_t domain are the following:
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27 /usr/lib/cyrus/master, /usr/libexec/cyrus-imapd/master, /usr/lib/cyrus-
28 imapd/cyrus-master, /usr/libexec/cyrus-imapd/cyrus-master
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31 SELinux defines process types (domains) for each process running on the
32 system
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34 You can see the context of a process using the -Z option to ps
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36 Policy governs the access confined processes have to files. SELinux
37 cyrus policy is very flexible allowing users to setup their cyrus pro‐
38 cesses in as secure a method as possible.
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40 The following process types are defined for cyrus:
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42 cyrus_t
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44 Note: semanage permissive -a cyrus_t can be used to make the process
45 type cyrus_t permissive. SELinux does not deny access to permissive
46 process types, but the AVC (SELinux denials) messages are still gener‐
47 ated.
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51 SELinux policy is customizable based on least access required. cyrus
52 policy is extremely flexible and has several booleans that allow you to
53 manipulate the policy and run cyrus with the tightest access possible.
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57 If you want to dontaudit all daemons scheduling requests (setsched,
58 sys_nice), you must turn on the daemons_dontaudit_scheduling boolean.
59 Enabled by default.
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61 setsebool -P daemons_dontaudit_scheduling 1
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65 If you want to allow all domains to execute in fips_mode, you must turn
66 on the fips_mode boolean. Enabled by default.
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68 setsebool -P fips_mode 1
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72 If you want to allow system to run with NIS, you must turn on the
73 nis_enabled boolean. Disabled by default.
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75 setsebool -P nis_enabled 1
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80 SELinux defines port types to represent TCP and UDP ports.
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82 You can see the types associated with a port by using the following
83 command:
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85 semanage port -l
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88 Policy governs the access confined processes have to these ports.
89 SELinux cyrus policy is very flexible allowing users to setup their
90 cyrus processes in as secure a method as possible.
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92 The following port types are defined for cyrus:
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95 cyrus_imapd_port_t
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99 Default Defined Ports:
100 tcp 2005
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103 The SELinux process type cyrus_t can manage files labeled with the fol‐
104 lowing file types. The paths listed are the default paths for these
105 file types. Note the processes UID still need to have DAC permissions.
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107 cluster_conf_t
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109 /etc/cluster(/.*)?
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111 cluster_var_lib_t
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113 /var/lib/pcsd(/.*)?
114 /var/lib/cluster(/.*)?
115 /var/lib/openais(/.*)?
116 /var/lib/pengine(/.*)?
117 /var/lib/corosync(/.*)?
118 /usr/lib/heartbeat(/.*)?
119 /var/lib/heartbeat(/.*)?
120 /var/lib/pacemaker(/.*)?
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122 cluster_var_run_t
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124 /var/run/crm(/.*)?
125 /var/run/cman_.*
126 /var/run/rsctmp(/.*)?
127 /var/run/aisexec.*
128 /var/run/heartbeat(/.*)?
129 /var/run/pcsd-ruby.socket
130 /var/run/corosync-qnetd(/.*)?
131 /var/run/corosync-qdevice(/.*)?
132 /var/run/corosync.pid
133 /var/run/cpglockd.pid
134 /var/run/rgmanager.pid
135 /var/run/cluster/rgmanager.sk
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137 cyrus_tmp_t
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140 cyrus_var_lib_t
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142 /var/imap(/.*)?
143 /var/lib/imap(/.*)?
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145 cyrus_var_run_t
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147 /var/run/cyrus.*
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149 krb5_host_rcache_t
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151 /var/tmp/krb5_0.rcache2
152 /var/cache/krb5rcache(/.*)?
153 /var/tmp/nfs_0
154 /var/tmp/DNS_25
155 /var/tmp/host_0
156 /var/tmp/imap_0
157 /var/tmp/HTTP_23
158 /var/tmp/HTTP_48
159 /var/tmp/ldap_55
160 /var/tmp/ldap_487
161 /var/tmp/ldapmap1_0
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163 mail_spool_t
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165 /var/mail(/.*)?
166 /var/spool/imap(/.*)?
167 /var/spool/mail(/.*)?
168 /var/spool/smtpd(/.*)?
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170 root_t
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172 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
173 /
174 /initrd
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176 snmpd_var_lib_t
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178 /var/agentx(/.*)?
179 /var/net-snmp(/.*)
180 /var/lib/snmp(/.*)?
181 /var/net-snmp(/.*)?
182 /var/lib/net-snmp(/.*)?
183 /var/spool/snmptt(/.*)?
184 /usr/share/snmp/mibs/.index
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188 SELinux requires files to have an extended attribute to define the file
189 type.
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191 You can see the context of a file using the -Z option to ls
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193 Policy governs the access confined processes have to these files.
194 SELinux cyrus policy is very flexible allowing users to setup their
195 cyrus processes in as secure a method as possible.
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197 STANDARD FILE CONTEXT
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199 SELinux defines the file context types for the cyrus, if you wanted to
200 store files with these types in a different paths, you need to execute
201 the semanage command to specify alternate labeling and then use re‐
202 storecon to put the labels on disk.
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204 semanage fcontext -a -t cyrus_exec_t '/srv/cyrus/content(/.*)?'
205 restorecon -R -v /srv/mycyrus_content
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207 Note: SELinux often uses regular expressions to specify labels that
208 match multiple files.
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210 The following file types are defined for cyrus:
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214 cyrus_exec_t
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216 - Set files with the cyrus_exec_t type, if you want to transition an
217 executable to the cyrus_t domain.
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220 Paths:
221 /usr/lib/cyrus/master, /usr/libexec/cyrus-imapd/master,
222 /usr/lib/cyrus-imapd/cyrus-master, /usr/libexec/cyrus-imapd/cyrus-
223 master
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226 cyrus_initrc_exec_t
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228 - Set files with the cyrus_initrc_exec_t type, if you want to transi‐
229 tion an executable to the cyrus_initrc_t domain.
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233 cyrus_keytab_t
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235 - Set files with the cyrus_keytab_t type, if you want to treat the
236 files as kerberos keytab files.
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240 cyrus_tmp_t
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242 - Set files with the cyrus_tmp_t type, if you want to store cyrus tem‐
243 porary files in the /tmp directories.
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247 cyrus_var_lib_t
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249 - Set files with the cyrus_var_lib_t type, if you want to store the
250 cyrus files under the /var/lib directory.
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253 Paths:
254 /var/imap(/.*)?, /var/lib/imap(/.*)?
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257 cyrus_var_run_t
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259 - Set files with the cyrus_var_run_t type, if you want to store the
260 cyrus files under the /run or /var/run directory.
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264 Note: File context can be temporarily modified with the chcon command.
265 If you want to permanently change the file context you need to use the
266 semanage fcontext command. This will modify the SELinux labeling data‐
267 base. You will need to use restorecon to apply the labels.
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271 semanage fcontext can also be used to manipulate default file context
272 mappings.
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274 semanage permissive can also be used to manipulate whether or not a
275 process type is permissive.
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277 semanage module can also be used to enable/disable/install/remove pol‐
278 icy modules.
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280 semanage port can also be used to manipulate the port definitions
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282 semanage boolean can also be used to manipulate the booleans
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285 system-config-selinux is a GUI tool available to customize SELinux pol‐
286 icy settings.
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290 This manual page was auto-generated using sepolicy manpage .
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294 selinux(8), cyrus(8), semanage(8), restorecon(8), chcon(1), sepol‐
295 icy(8), setsebool(8)
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299cyrus 23-10-20 cyrus_selinux(8)