1fetchmail_selinux(8) SELinux Policy fetchmail fetchmail_selinux(8)
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6 fetchmail_selinux - Security Enhanced Linux Policy for the fetchmail
7 processes
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10 Security-Enhanced Linux secures the fetchmail processes via flexible
11 mandatory access control.
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13 The fetchmail processes execute with the fetchmail_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep fetchmail_t
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24 The fetchmail_t SELinux type can be entered via the fetchmail_exec_t
25 file type.
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27 The default entrypoint paths for the fetchmail_t domain are the follow‐
28 ing:
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30 /usr/bin/fetchmail
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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 fetchmail policy is very flexible allowing users to setup their fetch‐
40 mail processes in as secure a method as possible.
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42 The following process types are defined for fetchmail:
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44 fetchmail_t
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46 Note: semanage permissive -a fetchmail_t can be used to make the
47 process type fetchmail_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
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53 SELinux policy is customizable based on least access required. fetch‐
54 mail policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run fetchmail with the tightest access
56 possible.
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60 If you want to allow all daemons to write corefiles to /, you must turn
61 on the daemons_dump_core boolean. Disabled by default.
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63 setsebool -P daemons_dump_core 1
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67 If you want to enable cluster mode for daemons, you must turn on the
68 daemons_enable_cluster_mode boolean. Enabled by default.
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70 setsebool -P daemons_enable_cluster_mode 1
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74 If you want to allow all daemons to use tcp wrappers, you must turn on
75 the daemons_use_tcp_wrapper boolean. Disabled by default.
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77 setsebool -P daemons_use_tcp_wrapper 1
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81 If you want to allow all daemons the ability to read/write terminals,
82 you must turn on the daemons_use_tty boolean. Disabled by default.
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84 setsebool -P daemons_use_tty 1
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88 If you want to deny any process from ptracing or debugging any other
89 processes, you must turn on the deny_ptrace boolean. Enabled by
90 default.
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92 setsebool -P deny_ptrace 1
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96 If you want to allow any process to mmap any file on system with
97 attribute file_type, you must turn on the domain_can_mmap_files bool‐
98 ean. Enabled by default.
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100 setsebool -P domain_can_mmap_files 1
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104 If you want to allow all domains write to kmsg_device, while kernel is
105 executed with systemd.log_target=kmsg parameter, you must turn on the
106 domain_can_write_kmsg boolean. Disabled by default.
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108 setsebool -P domain_can_write_kmsg 1
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112 If you want to allow all domains to use other domains file descriptors,
113 you must turn on the domain_fd_use boolean. Enabled by default.
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115 setsebool -P domain_fd_use 1
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119 If you want to allow all domains to have the kernel load modules, you
120 must turn on the domain_kernel_load_modules boolean. Disabled by
121 default.
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123 setsebool -P domain_kernel_load_modules 1
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127 If you want to allow all domains to execute in fips_mode, you must turn
128 on the fips_mode boolean. Enabled by default.
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130 setsebool -P fips_mode 1
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134 If you want to enable reading of urandom for all domains, you must turn
135 on the global_ssp boolean. Disabled by default.
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137 setsebool -P global_ssp 1
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141 If you want to allow confined applications to run with kerberos, you
142 must turn on the kerberos_enabled boolean. Enabled by default.
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144 setsebool -P kerberos_enabled 1
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148 If you want to allow confined applications to use nscd shared memory,
149 you must turn on the nscd_use_shm boolean. Disabled by default.
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151 setsebool -P nscd_use_shm 1
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156 The SELinux process type fetchmail_t can manage files labeled with the
157 following file types. The paths listed are the default paths for these
158 file types. Note the processes UID still need to have DAC permissions.
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160 cluster_conf_t
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162 /etc/cluster(/.*)?
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164 cluster_var_lib_t
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166 /var/lib/pcsd(/.*)?
167 /var/lib/cluster(/.*)?
168 /var/lib/openais(/.*)?
169 /var/lib/pengine(/.*)?
170 /var/lib/corosync(/.*)?
171 /usr/lib/heartbeat(/.*)?
172 /var/lib/heartbeat(/.*)?
173 /var/lib/pacemaker(/.*)?
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175 cluster_var_run_t
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177 /var/run/crm(/.*)?
178 /var/run/cman_.*
179 /var/run/rsctmp(/.*)?
180 /var/run/aisexec.*
181 /var/run/heartbeat(/.*)?
182 /var/run/corosync-qnetd(/.*)?
183 /var/run/corosync-qdevice(/.*)?
184 /var/run/cpglockd.pid
185 /var/run/corosync.pid
186 /var/run/rgmanager.pid
187 /var/run/cluster/rgmanager.sk
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189 fetchmail_uidl_cache_t
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191 /var/lib/fetchmail(/.*)?
192 /var/mail/.fetchmail-UIDL-cache
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194 fetchmail_var_run_t
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196 /var/run/fetchmail.*
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198 root_t
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200 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
201 /
202 /initrd
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204 sendmail_log_t
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206 /var/log/mail(/.*)?
207 /var/log/sendmail.st.*
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211 SELinux requires files to have an extended attribute to define the file
212 type.
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214 You can see the context of a file using the -Z option to ls
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216 Policy governs the access confined processes have to these files.
217 SELinux fetchmail policy is very flexible allowing users to setup their
218 fetchmail processes in as secure a method as possible.
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220 STANDARD FILE CONTEXT
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222 SELinux defines the file context types for the fetchmail, if you wanted
223 to store files with these types in a diffent paths, you need to execute
224 the semanage command to sepecify alternate labeling and then use
225 restorecon to put the labels on disk.
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227 semanage fcontext -a -t fetchmail_var_run_t '/srv/myfetchmail_con‐
228 tent(/.*)?'
229 restorecon -R -v /srv/myfetchmail_content
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231 Note: SELinux often uses regular expressions to specify labels that
232 match multiple files.
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234 The following file types are defined for fetchmail:
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238 fetchmail_etc_t
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240 - Set files with the fetchmail_etc_t type, if you want to store fetch‐
241 mail files in the /etc directories.
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245 fetchmail_exec_t
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247 - Set files with the fetchmail_exec_t type, if you want to transition
248 an executable to the fetchmail_t domain.
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252 fetchmail_home_t
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254 - Set files with the fetchmail_home_t type, if you want to store fetch‐
255 mail files in the users home directory.
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258 Paths:
259 /root/.fetchmailrc, /home/[^/]+/.fetchmailrc
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262 fetchmail_initrc_exec_t
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264 - Set files with the fetchmail_initrc_exec_t type, if you want to tran‐
265 sition an executable to the fetchmail_initrc_t domain.
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269 fetchmail_log_t
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271 - Set files with the fetchmail_log_t type, if you want to treat the
272 data as fetchmail log data, usually stored under the /var/log direc‐
273 tory.
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277 fetchmail_uidl_cache_t
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279 - Set files with the fetchmail_uidl_cache_t type, if you want to store
280 the files under the /var/cache directory.
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283 Paths:
284 /var/lib/fetchmail(/.*)?, /var/mail/.fetchmail-UIDL-cache
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287 fetchmail_var_run_t
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289 - Set files with the fetchmail_var_run_t type, if you want to store the
290 fetchmail files under the /run or /var/run directory.
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294 Note: File context can be temporarily modified with the chcon command.
295 If you want to permanently change the file context you need to use the
296 semanage fcontext command. This will modify the SELinux labeling data‐
297 base. You will need to use restorecon to apply the labels.
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301 semanage fcontext can also be used to manipulate default file context
302 mappings.
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304 semanage permissive can also be used to manipulate whether or not a
305 process type is permissive.
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307 semanage module can also be used to enable/disable/install/remove pol‐
308 icy modules.
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310 semanage boolean can also be used to manipulate the booleans
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313 system-config-selinux is a GUI tool available to customize SELinux pol‐
314 icy settings.
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318 This manual page was auto-generated using sepolicy manpage .
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322 selinux(8), fetchmail(8), semanage(8), restorecon(8), chcon(1), sepol‐
323 icy(8) , setsebool(8)
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327fetchmail 19-04-25 fetchmail_selinux(8)