1cdcc_selinux(8) SELinux Policy cdcc cdcc_selinux(8)
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6 cdcc_selinux - Security Enhanced Linux Policy for the cdcc processes
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9 Security-Enhanced Linux secures the cdcc processes via flexible manda‐
10 tory access control.
11 The cdcc processes execute with the cdcc_t SELinux type. You can check
13 if you have these processes running by executing the ps command with
14 the -Z qualifier.
15 For example:
17 ps -eZ | grep cdcc_t
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23 The cdcc_t SELinux type can be entered via the cdcc_exec_t file type.
24 The default entrypoint paths for the cdcc_t domain are the following:
26 /usr/bin/cdcc
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30 SELinux defines process types (domains) for each process running on the
31 system
32 You can see the context of a process using the -Z option to ps
34 Policy governs the access confined processes have to files. SELinux
36 cdcc policy is very flexible allowing users to setup their cdcc pro‐
37 cesses in as secure a method as possible.
38 The following process types are defined for cdcc:
40 cdcc_t
42 Note: semanage permissive -a cdcc_t can be used to make the process
44 type cdcc_t permissive. SELinux does not deny access to permissive
45 process types, but the AVC (SELinux denials) messages are still gener‐
46 ated.
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50 SELinux policy is customizable based on least access required. cdcc
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run cdcc with the tightest access possible.
53 If you want to allow users to resolve user passwd entries directly from
57 ldap rather then using a sssd server, you must turn on the authlo‐
58 gin_nsswitch_use_ldap boolean. Disabled by default.
59 setsebool -P authlogin_nsswitch_use_ldap 1
61 If you want to deny any process from ptracing or debugging any other
65 processes, you must turn on the deny_ptrace boolean. Enabled by
66 default.
67 setsebool -P deny_ptrace 1
69 If you want to allow any process to mmap any file on system with
73 attribute file_type, you must turn on the domain_can_mmap_files bool‐
74 ean. Enabled by default.
75 setsebool -P domain_can_mmap_files 1
77 If you want to allow all domains write to kmsg_device, while kernel is
81 executed with systemd.log_target=kmsg parameter, you must turn on the
82 domain_can_write_kmsg boolean. Disabled by default.
83 setsebool -P domain_can_write_kmsg 1
85 If you want to allow all domains to use other domains file descriptors,
89 you must turn on the domain_fd_use boolean. Enabled by default.
90 setsebool -P domain_fd_use 1
92 If you want to allow all domains to have the kernel load modules, you
96 must turn on the domain_kernel_load_modules boolean. Disabled by
97 default.
98 setsebool -P domain_kernel_load_modules 1
100 If you want to allow all domains to execute in fips_mode, you must turn
104 on the fips_mode boolean. Enabled by default.
105 setsebool -P fips_mode 1
107 If you want to enable reading of urandom for all domains, you must turn
111 on the global_ssp boolean. Disabled by default.
112 setsebool -P global_ssp 1
114 If you want to allow confined applications to run with kerberos, you
118 must turn on the kerberos_enabled boolean. Enabled by default.
119 setsebool -P kerberos_enabled 1
121 If you want to allow system to run with NIS, you must turn on the
125 nis_enabled boolean. Disabled by default.
126 setsebool -P nis_enabled 1
128 If you want to allow confined applications to use nscd shared memory,
132 you must turn on the nscd_use_shm boolean. Disabled by default.
133 setsebool -P nscd_use_shm 1
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139 The SELinux process type cdcc_t can manage files labeled with the fol‐
140 lowing file types. The paths listed are the default paths for these
141 file types. Note the processes UID still need to have DAC permissions.
142 cdcc_tmp_t
144 dcc_client_map_t
147 /etc/dcc/map
149 /var/dcc/map
150 /var/lib/dcc/map
151 /var/run/dcc/map
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155 SELinux requires files to have an extended attribute to define the file
156 type.
157 You can see the context of a file using the -Z option to ls
159 Policy governs the access confined processes have to these files.
161 SELinux cdcc policy is very flexible allowing users to setup their cdcc
162 processes in as secure a method as possible.
163 STANDARD FILE CONTEXT
165 SELinux defines the file context types for the cdcc, if you wanted to
167 store files with these types in a diffent paths, you need to execute
168 the semanage command to sepecify alternate labeling and then use
169 restorecon to put the labels on disk.
170 semanage fcontext -a -t cdcc_tmp_t '/srv/mycdcc_content(/.*)?'
172 restorecon -R -v /srv/mycdcc_content
173 Note: SELinux often uses regular expressions to specify labels that
175 match multiple files.
176 The following file types are defined for cdcc:
178 cdcc_exec_t
182 - Set files with the cdcc_exec_t type, if you want to transition an
184 executable to the cdcc_t domain.
185 cdcc_tmp_t
189 - Set files with the cdcc_tmp_t type, if you want to store cdcc tempo‐
191 rary files in the /tmp directories.
192 Note: File context can be temporarily modified with the chcon command.
196 If you want to permanently change the file context you need to use the
197 semanage fcontext command. This will modify the SELinux labeling data‐
198 base. You will need to use restorecon to apply the labels.
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202 semanage fcontext can also be used to manipulate default file context
203 mappings.
204 semanage permissive can also be used to manipulate whether or not a
206 process type is permissive.
207 semanage module can also be used to enable/disable/install/remove pol‐
209 icy modules.
210 semanage boolean can also be used to manipulate the booleans
212 system-config-selinux is a GUI tool available to customize SELinux pol‐
215 icy settings.
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219 This manual page was auto-generated using sepolicy manpage .
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223 selinux(8), cdcc(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)
224 , setsebool(8)
225cdcc 19-04-25 cdcc_selinux(8)