1fail2ban_selinux(8) SELinux Policy fail2ban fail2ban_selinux(8)
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6 fail2ban_selinux - Security Enhanced Linux Policy for the fail2ban pro‐
7 cesses
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10 Security-Enhanced Linux secures the fail2ban processes via flexible
11 mandatory access control.
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13 The fail2ban processes execute with the fail2ban_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 fail2ban_t
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24 The fail2ban_t SELinux type can be entered via the fail2ban_exec_t file
25 type.
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27 The default entrypoint paths for the fail2ban_t domain are the follow‐
28 ing:
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30 /usr/bin/fail2ban, /usr/bin/fail2ban-server
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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 fail2ban policy is very flexible allowing users to setup their fail2ban
40 processes in as secure a method as possible.
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42 The following process types are defined for fail2ban:
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44 fail2ban_t, fail2ban_client_t
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46 Note: semanage permissive -a fail2ban_t can be used to make the process
47 type fail2ban_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.
54 fail2ban policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run fail2ban with the tightest
56 access possible.
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60 If you want to allow users to resolve user passwd entries directly from
61 ldap rather then using a sssd server, you must turn on the authlo‐
62 gin_nsswitch_use_ldap boolean. Disabled by default.
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64 setsebool -P authlogin_nsswitch_use_ldap 1
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68 If you want to allow all daemons to write corefiles to /, you must turn
69 on the daemons_dump_core boolean. Disabled by default.
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71 setsebool -P daemons_dump_core 1
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75 If you want to enable cluster mode for daemons, you must turn on the
76 daemons_enable_cluster_mode boolean. Enabled by default.
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78 setsebool -P daemons_enable_cluster_mode 1
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82 If you want to allow all daemons to use tcp wrappers, you must turn on
83 the daemons_use_tcp_wrapper boolean. Disabled by default.
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85 setsebool -P daemons_use_tcp_wrapper 1
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89 If you want to allow all daemons the ability to read/write terminals,
90 you must turn on the daemons_use_tty boolean. Disabled by default.
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92 setsebool -P daemons_use_tty 1
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96 If you want to deny any process from ptracing or debugging any other
97 processes, you must turn on the deny_ptrace boolean. Enabled by
98 default.
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100 setsebool -P deny_ptrace 1
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104 If you want to allow any process to mmap any file on system with
105 attribute file_type, you must turn on the domain_can_mmap_files bool‐
106 ean. Enabled by default.
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108 setsebool -P domain_can_mmap_files 1
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112 If you want to allow all domains write to kmsg_device, while kernel is
113 executed with systemd.log_target=kmsg parameter, you must turn on the
114 domain_can_write_kmsg boolean. Disabled by default.
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116 setsebool -P domain_can_write_kmsg 1
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120 If you want to allow all domains to use other domains file descriptors,
121 you must turn on the domain_fd_use boolean. Enabled by default.
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123 setsebool -P domain_fd_use 1
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127 If you want to allow all domains to have the kernel load modules, you
128 must turn on the domain_kernel_load_modules boolean. Disabled by
129 default.
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131 setsebool -P domain_kernel_load_modules 1
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135 If you want to allow all domains to execute in fips_mode, you must turn
136 on the fips_mode boolean. Enabled by default.
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138 setsebool -P fips_mode 1
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142 If you want to enable reading of urandom for all domains, you must turn
143 on the global_ssp boolean. Disabled by default.
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145 setsebool -P global_ssp 1
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149 If you want to allow confined applications to run with kerberos, you
150 must turn on the kerberos_enabled boolean. Enabled by default.
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152 setsebool -P kerberos_enabled 1
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156 If you want to allow system to run with NIS, you must turn on the
157 nis_enabled boolean. Disabled by default.
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159 setsebool -P nis_enabled 1
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163 If you want to allow confined applications to use nscd shared memory,
164 you must turn on the nscd_use_shm boolean. Disabled by default.
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166 setsebool -P nscd_use_shm 1
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171 The SELinux process type fail2ban_t can manage files labeled with the
172 following file types. The paths listed are the default paths for these
173 file types. Note the processes UID still need to have DAC permissions.
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175 cluster_conf_t
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177 /etc/cluster(/.*)?
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179 cluster_var_lib_t
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181 /var/lib/pcsd(/.*)?
182 /var/lib/cluster(/.*)?
183 /var/lib/openais(/.*)?
184 /var/lib/pengine(/.*)?
185 /var/lib/corosync(/.*)?
186 /usr/lib/heartbeat(/.*)?
187 /var/lib/heartbeat(/.*)?
188 /var/lib/pacemaker(/.*)?
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190 cluster_var_run_t
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192 /var/run/crm(/.*)?
193 /var/run/cman_.*
194 /var/run/rsctmp(/.*)?
195 /var/run/aisexec.*
196 /var/run/heartbeat(/.*)?
197 /var/run/corosync-qnetd(/.*)?
198 /var/run/corosync-qdevice(/.*)?
199 /var/run/cpglockd.pid
200 /var/run/corosync.pid
201 /var/run/rgmanager.pid
202 /var/run/cluster/rgmanager.sk
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204 fail2ban_tmp_t
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207 fail2ban_var_lib_t
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209 /var/lib/fail2ban(/.*)?
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211 fail2ban_var_run_t
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213 /var/run/fail2ban.*
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215 net_conf_t
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217 /etc/hosts[^/]*
218 /etc/yp.conf.*
219 /etc/denyhosts.*
220 /etc/hosts.deny.*
221 /etc/resolv.conf.*
222 /etc/.resolv.conf.*
223 /etc/resolv-secure.conf.*
224 /var/run/systemd/network(/.*)?
225 /etc/sysconfig/networking(/.*)?
226 /etc/sysconfig/network-scripts(/.*)?
227 /etc/sysconfig/network-scripts/.*resolv.conf
228 /var/run/NetworkManager/resolv.conf.*
229 /etc/ethers
230 /etc/ntp.conf
231 /var/run/systemd/resolve/resolv.conf
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233 root_t
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235 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
236 /
237 /initrd
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241 SELinux requires files to have an extended attribute to define the file
242 type.
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244 You can see the context of a file using the -Z option to ls
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246 Policy governs the access confined processes have to these files.
247 SELinux fail2ban policy is very flexible allowing users to setup their
248 fail2ban processes in as secure a method as possible.
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250 STANDARD FILE CONTEXT
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252 SELinux defines the file context types for the fail2ban, if you wanted
253 to store files with these types in a diffent paths, you need to execute
254 the semanage command to sepecify alternate labeling and then use
255 restorecon to put the labels on disk.
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257 semanage fcontext -a -t fail2ban_var_run_t '/srv/myfail2ban_con‐
258 tent(/.*)?'
259 restorecon -R -v /srv/myfail2ban_content
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261 Note: SELinux often uses regular expressions to specify labels that
262 match multiple files.
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264 The following file types are defined for fail2ban:
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268 fail2ban_client_exec_t
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270 - Set files with the fail2ban_client_exec_t type, if you want to tran‐
271 sition an executable to the fail2ban_client_t domain.
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275 fail2ban_exec_t
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277 - Set files with the fail2ban_exec_t type, if you want to transition an
278 executable to the fail2ban_t domain.
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281 Paths:
282 /usr/bin/fail2ban, /usr/bin/fail2ban-server
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285 fail2ban_initrc_exec_t
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287 - Set files with the fail2ban_initrc_exec_t type, if you want to tran‐
288 sition an executable to the fail2ban_initrc_t domain.
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292 fail2ban_log_t
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294 - Set files with the fail2ban_log_t type, if you want to treat the data
295 as fail2ban log data, usually stored under the /var/log directory.
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299 fail2ban_tmp_t
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301 - Set files with the fail2ban_tmp_t type, if you want to store fail2ban
302 temporary files in the /tmp directories.
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306 fail2ban_var_lib_t
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308 - Set files with the fail2ban_var_lib_t type, if you want to store the
309 fail2ban files under the /var/lib directory.
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313 fail2ban_var_run_t
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315 - Set files with the fail2ban_var_run_t type, if you want to store the
316 fail2ban files under the /run or /var/run directory.
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320 Note: File context can be temporarily modified with the chcon command.
321 If you want to permanently change the file context you need to use the
322 semanage fcontext command. This will modify the SELinux labeling data‐
323 base. You will need to use restorecon to apply the labels.
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327 semanage fcontext can also be used to manipulate default file context
328 mappings.
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330 semanage permissive can also be used to manipulate whether or not a
331 process type is permissive.
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333 semanage module can also be used to enable/disable/install/remove pol‐
334 icy modules.
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336 semanage boolean can also be used to manipulate the booleans
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339 system-config-selinux is a GUI tool available to customize SELinux pol‐
340 icy settings.
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344 This manual page was auto-generated using sepolicy manpage .
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348 selinux(8), fail2ban(8), semanage(8), restorecon(8), chcon(1), sepol‐
349 icy(8) , setsebool(8), fail2ban_client_selinux(8),
350 fail2ban_client_selinux(8)
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354fail2ban 19-04-25 fail2ban_selinux(8)