1cupsd_lpd_selinux(8) SELinux Policy cupsd_lpd cupsd_lpd_selinux(8)
2
6 cupsd_lpd_selinux - Security Enhanced Linux Policy for the cupsd_lpd
7 processes
8
10 Security-Enhanced Linux secures the cupsd_lpd processes via flexible
11 mandatory access control.
12 The cupsd_lpd processes execute with the cupsd_lpd_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 cupsd_lpd_t
20
24 The cupsd_lpd_t SELinux type can be entered via the cupsd_lpd_exec_t
25 file type.
26 The default entrypoint paths for the cupsd_lpd_t domain are the follow‐
28 ing:
29 /usr/lib/cups/daemon/cups-lpd, /usr/lib64/cups/daemon/cups-lpd
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 cupsd_lpd policy is very flexible allowing users to setup their
40 cupsd_lpd processes in as secure a method as possible.
41 The following process types are defined for cupsd_lpd:
43 cupsd_lpd_t
45 Note: semanage permissive -a cupsd_lpd_t can be used to make the
47 process type cupsd_lpd_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
53 SELinux policy is customizable based on least access required.
54 cupsd_lpd policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run cupsd_lpd with the tightest
56 access possible.
57 If you want to allow all domains to use other domains file descriptors,
61 you must turn on the allow_domain_fd_use boolean. Enabled by default.
62 setsebool -P allow_domain_fd_use 1
64 If you want to allow confined applications to run with kerberos, you
68 must turn on the allow_kerberos boolean. Enabled by default.
69 setsebool -P allow_kerberos 1
71 If you want to allow sysadm to debug or ptrace all processes, you must
75 turn on the allow_ptrace boolean. Disabled by default.
76 setsebool -P allow_ptrace 1
78 If you want to allow system to run with NIS, you must turn on the
82 allow_ypbind boolean. Disabled by default.
83 setsebool -P allow_ypbind 1
85 If you want to allow all domains to have the kernel load modules, you
89 must turn on the domain_kernel_load_modules boolean. Disabled by
90 default.
91 setsebool -P domain_kernel_load_modules 1
93 If you want to allow all domains to execute in fips_mode, you must turn
97 on the fips_mode boolean. Enabled by default.
98 setsebool -P fips_mode 1
100 If you want to enable reading of urandom for all domains, you must turn
104 on the global_ssp boolean. Disabled by default.
105 setsebool -P global_ssp 1
107 If you want to allow confined applications to use nscd shared memory,
111 you must turn on the nscd_use_shm boolean. Enabled by default.
112 setsebool -P nscd_use_shm 1
114
118 The SELinux process type cupsd_lpd_t can manage files labeled with the
119 following file types. The paths listed are the default paths for these
120 file types. Note the processes UID still need to have DAC permissions.
121 cupsd_lpd_tmp_t
123 cupsd_lpd_var_run_t
126 initrc_tmp_t
129 mnt_t
132 /mnt(/[^/]*)
134 /mnt(/[^/]*)?
135 /rhev(/[^/]*)?
136 /media(/[^/]*)
137 /media(/[^/]*)?
138 /etc/rhgb(/.*)?
139 /media/.hal-.*
140 /net
141 /afs
142 /rhev
143 /misc
144 tmp_t
146 /tmp
148 /usr/tmp
149 /var/tmp
150 /tmp-inst
151 /var/tmp-inst
152 /var/tmp/vi.recover
153
156 SELinux requires files to have an extended attribute to define the file
157 type.
158 You can see the context of a file using the -Z option to ls
160 Policy governs the access confined processes have to these files.
162 SELinux cupsd_lpd policy is very flexible allowing users to setup their
163 cupsd_lpd processes in as secure a method as possible.
164 STANDARD FILE CONTEXT
166 SELinux defines the file context types for the cupsd_lpd, if you wanted
168 to store files with these types in a diffent paths, you need to execute
169 the semanage command to sepecify alternate labeling and then use
170 restorecon to put the labels on disk.
171 semanage fcontext -a -t cupsd_lpd_var_run_t '/srv/mycupsd_lpd_con‐
173 tent(/.*)?'
174 restorecon -R -v /srv/mycupsd_lpd_content
175 Note: SELinux often uses regular expressions to specify labels that
177 match multiple files.
178 The following file types are defined for cupsd_lpd:
180 cupsd_lpd_exec_t
184 - Set files with the cupsd_lpd_exec_t type, if you want to transition
186 an executable to the cupsd_lpd_t domain.
187 Paths:
190 /usr/lib/cups/daemon/cups-lpd, /usr/lib64/cups/daemon/cups-lpd
191 cupsd_lpd_tmp_t
194 - Set files with the cupsd_lpd_tmp_t type, if you want to store cupsd
196 lpd temporary files in the /tmp directories.
197 cupsd_lpd_var_run_t
201 - Set files with the cupsd_lpd_var_run_t type, if you want to store the
203 cupsd lpd files under the /run or /var/run directory.
204 Note: File context can be temporarily modified with the chcon command.
208 If you want to permanently change the file context you need to use the
209 semanage fcontext command. This will modify the SELinux labeling data‐
210 base. You will need to use restorecon to apply the labels.
211
214 semanage fcontext can also be used to manipulate default file context
215 mappings.
216 semanage permissive can also be used to manipulate whether or not a
218 process type is permissive.
219 semanage module can also be used to enable/disable/install/remove pol‐
221 icy modules.
222 semanage boolean can also be used to manipulate the booleans
224 system-config-selinux is a GUI tool available to customize SELinux pol‐
227 icy settings.
228
231 This manual page was auto-generated using sepolicy manpage .
232
235 selinux(8), cupsd_lpd(8), semanage(8), restorecon(8), chcon(1) , setse‐
236 bool(8)
237cupsd_lpd 15-06-03 cupsd_lpd_selinux(8)