1cobblerd_selinux(8) SELinux Policy cobblerd cobblerd_selinux(8)
2
6 cobblerd_selinux - Security Enhanced Linux Policy for the cobblerd pro‐
7 cesses
8
10 Security-Enhanced Linux secures the cobblerd processes via flexible
11 mandatory access control.
12 The cobblerd processes execute with the cobblerd_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
16 For example:
18 ps -eZ | grep cobblerd_t
20
24 The cobblerd_t SELinux type can be entered via the cobblerd_exec_t file
25 type.
26 The default entrypoint paths for the cobblerd_t domain are the follow‐
28 ing:
29 /usr/bin/cobblerd
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 cobblerd policy is very flexible allowing users to setup their cobblerd
40 processes in as secure a method as possible.
41 The following process types are defined for cobblerd:
43 cobblerd_t
45 Note: semanage permissive -a cobblerd_t can be used to make the process
47 type cobblerd_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
50
53 SELinux policy is customizable based on least access required. cob‐
54 blerd policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run cobblerd with the tightest access
56 possible.
57 If you want to determine whether Cobbler can connect to the network
61 using TCP, you must turn on the cobbler_can_network_connect boolean.
62 Disabled by default.
63 setsebool -P cobbler_can_network_connect 1
65 If you want to determine whether Cobbler can access cifs file systems,
69 you must turn on the cobbler_use_cifs boolean. Disabled by default.
70 setsebool -P cobbler_use_cifs 1
72 If you want to determine whether Cobbler can access nfs file systems,
76 you must turn on the cobbler_use_nfs boolean. Disabled by default.
77 setsebool -P cobbler_use_nfs 1
79 If you want to allow all domains to execute in fips_mode, you must turn
83 on the fips_mode boolean. Enabled by default.
84 setsebool -P fips_mode 1
86
90 SELinux defines port types to represent TCP and UDP ports.
91 You can see the types associated with a port by using the following
93 command:
94 semanage port -l
96 Policy governs the access confined processes have to these ports.
99 SELinux cobblerd policy is very flexible allowing users to setup their
100 cobblerd processes in as secure a method as possible.
101 The following port types are defined for cobblerd:
103 cobbler_port_t
106 Default Defined Ports:
110 tcp 25151
111
113 The SELinux process type cobblerd_t can manage files labeled with the
114 following file types. The paths listed are the default paths for these
115 file types. Note the processes UID still need to have DAC permissions.
116 cifs_t
118 cluster_conf_t
121 /etc/cluster(/.*)?
123 cluster_var_lib_t
125 /var/lib/pcsd(/.*)?
127 /var/lib/cluster(/.*)?
128 /var/lib/openais(/.*)?
129 /var/lib/pengine(/.*)?
130 /var/lib/corosync(/.*)?
131 /usr/lib/heartbeat(/.*)?
132 /var/lib/heartbeat(/.*)?
133 /var/lib/pacemaker(/.*)?
134 cluster_var_run_t
136 /var/run/crm(/.*)?
138 /var/run/cman_.*
139 /var/run/rsctmp(/.*)?
140 /var/run/aisexec.*
141 /var/run/heartbeat(/.*)?
142 /var/run/corosync-qnetd(/.*)?
143 /var/run/corosync-qdevice(/.*)?
144 /var/run/corosync.pid
145 /var/run/cpglockd.pid
146 /var/run/rgmanager.pid
147 /var/run/cluster/rgmanager.sk
148 cobbler_var_lib_t
150 /var/lib/cobbler(/.*)?
152 /var/www/cobbler(/.*)?
153 /var/cache/cobbler(/.*)?
154 /var/lib/tftpboot/etc(/.*)?
155 /var/lib/tftpboot/ppc(/.*)?
156 /var/lib/tftpboot/boot(/.*)?
157 /var/lib/tftpboot/grub(/.*)?
158 /var/lib/tftpboot/s390x(/.*)?
159 /var/lib/tftpboot/images(/.*)?
160 /var/lib/tftpboot/aarch64(/.*)?
161 /var/lib/tftpboot/images2(/.*)?
162 /var/lib/tftpboot/pxelinux.cfg(/.*)?
163 /var/lib/tftpboot/yaboot
164 /var/lib/tftpboot/memdisk
165 /var/lib/tftpboot/menu.c32
166 /var/lib/tftpboot/pxelinux.0
167 dhcp_etc_t
169 /etc/dhcpc.*
171 /etc/dhcp3?(/.*)?
172 /etc/dhcpd(6)?.conf
173 /etc/dhcp3?/dhclient.*
174 /etc/dhclient.*conf
175 /etc/dhcp/dhcpd(6)?.conf
176 /etc/dhclient-script
177 dnsmasq_etc_t
179 /etc/dnsmasq.d(/.*)?
181 /etc/dnsmasq.conf
182 named_conf_t
184 /etc/rndc.*
186 /etc/named(/.*)?
187 /etc/unbound(/.*)?
188 /var/named/chroot(/.*)?
189 /etc/named.rfc1912.zones
190 /var/named/chroot/etc/named.rfc1912.zones
191 /etc/named.conf
192 /var/named/named.ca
193 /etc/named.root.hints
194 /var/named/chroot/etc/named.conf
195 /etc/named.caching-nameserver.conf
196 /var/named/chroot/var/named/named.ca
197 /var/named/chroot/etc/named.root.hints
198 /var/named/chroot/etc/named.caching-nameserver.conf
199 named_zone_t
201 /var/named(/.*)?
203 /var/named/chroot/var/named(/.*)?
204 nfs_t
206 root_t
209 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
211 /
212 /initrd
213 rsync_etc_t
215 /etc/rsyncd.conf
217 systemd_passwd_var_run_t
219 /var/run/systemd/ask-password(/.*)?
221 /var/run/systemd/ask-password-block(/.*)?
222 tftpd_etc_t
224 /etc/(x)?inetd.d/tftp
226
229 SELinux requires files to have an extended attribute to define the file
230 type.
231 You can see the context of a file using the -Z option to ls
233 Policy governs the access confined processes have to these files.
235 SELinux cobblerd policy is very flexible allowing users to setup their
236 cobblerd processes in as secure a method as possible.
237 The following file types are defined for cobblerd:
239 cobblerd_exec_t
243 - Set files with the cobblerd_exec_t type, if you want to transition an
245 executable to the cobblerd_t domain.
246 cobblerd_initrc_exec_t
250 - Set files with the cobblerd_initrc_exec_t type, if you want to tran‐
252 sition an executable to the cobblerd_initrc_t domain.
253 Note: File context can be temporarily modified with the chcon command.
257 If you want to permanently change the file context you need to use the
258 semanage fcontext command. This will modify the SELinux labeling data‐
259 base. You will need to use restorecon to apply the labels.
260
263 If you want to share files with multiple domains (Apache, FTP, rsync,
264 Samba), you can set a file context of public_content_t and public_con‐
265 tent_rw_t. These context allow any of the above domains to read the
266 content. If you want a particular domain to write to the public_con‐
267 tent_rw_t domain, you must set the appropriate boolean.
268 Allow cobblerd servers to read the /var/cobblerd directory by adding
270 the public_content_t file type to the directory and by restoring the
271 file type.
272 semanage fcontext -a -t public_content_t "/var/cobblerd(/.*)?"
274 restorecon -F -R -v /var/cobblerd
275 Allow cobblerd servers to read and write /var/cobblerd/incoming by
277 adding the public_content_rw_t type to the directory and by restoring
278 the file type. You also need to turn on the cobblerd_anon_write bool‐
279 ean.
280 semanage fcontext -a -t public_content_rw_t "/var/cobblerd/incom‐
282 ing(/.*)?"
283 restorecon -F -R -v /var/cobblerd/incoming
284 setsebool -P cobblerd_anon_write 1
285 If you want to determine whether Cobbler can modify public files used
288 for public file transfer services., you must turn on the cob‐
289 bler_anon_write boolean.
290 setsebool -P cobbler_anon_write 1
292
295 semanage fcontext can also be used to manipulate default file context
296 mappings.
297 semanage permissive can also be used to manipulate whether or not a
299 process type is permissive.
300 semanage module can also be used to enable/disable/install/remove pol‐
302 icy modules.
303 semanage port can also be used to manipulate the port definitions
305 semanage boolean can also be used to manipulate the booleans
307 system-config-selinux is a GUI tool available to customize SELinux pol‐
310 icy settings.
311
314 This manual page was auto-generated using sepolicy manpage .
315
318 selinux(8), cobblerd(8), semanage(8), restorecon(8), chcon(1), sepol‐
319 icy(8), setsebool(8)
320cobblerd 20-05-05 cobblerd_selinux(8)