1cupsd_lpd_selinux(8) SELinux Policy cupsd_lpd cupsd_lpd_selinux(8)
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6 cupsd_lpd_selinux - Security Enhanced Linux Policy for the cupsd_lpd
7 processes
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10 Security-Enhanced Linux secures the cupsd_lpd processes via flexible
11 mandatory access control.
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13 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.
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17 For example:
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19 ps -eZ | grep cupsd_lpd_t
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24 The cupsd_lpd_t SELinux type can be entered via the cupsd_lpd_exec_t
25 file type.
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27 The default entrypoint paths for the cupsd_lpd_t domain are the follow‐
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30 /usr/lib/cups/daemon/cups-lpd
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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 cupsd_lpd policy is very flexible allowing users to setup their
40 cupsd_lpd processes in as secure a method as possible.
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42 The following process types are defined for cupsd_lpd:
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44 cupsd_lpd_t
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46 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.
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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.
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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 domains to execute in fips_mode, you must turn
69 on the fips_mode boolean. Enabled by default.
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71 setsebool -P fips_mode 1
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75 If you want to allow confined applications to run with kerberos, you
76 must turn on the kerberos_enabled boolean. Enabled by default.
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78 setsebool -P kerberos_enabled 1
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82 If you want to allow system to run with NIS, you must turn on the
83 nis_enabled boolean. Disabled by default.
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85 setsebool -P nis_enabled 1
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89 If you want to allow confined applications to use nscd shared memory,
90 you must turn on the nscd_use_shm boolean. Enabled by default.
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92 setsebool -P nscd_use_shm 1
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97 The SELinux process type cupsd_lpd_t can manage files labeled with the
98 following file types. The paths listed are the default paths for these
99 file types. Note the processes UID still need to have DAC permissions.
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101 cupsd_lpd_tmp_t
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104 cupsd_lpd_var_run_t
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107 print_spool_t
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109 /var/spool/lpd(/.*)?
110 /var/spool/cups(/.*)?
111 /var/spool/cups-pdf(/.*)?
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115 SELinux requires files to have an extended attribute to define the file
116 type.
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118 You can see the context of a file using the -Z option to ls
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120 Policy governs the access confined processes have to these files.
121 SELinux cupsd_lpd policy is very flexible allowing users to setup their
122 cupsd_lpd processes in as secure a method as possible.
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124 STANDARD FILE CONTEXT
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126 SELinux defines the file context types for the cupsd_lpd, if you wanted
127 to store files with these types in a diffent paths, you need to execute
128 the semanage command to sepecify alternate labeling and then use
129 restorecon to put the labels on disk.
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131 semanage fcontext -a -t cupsd_lpd_var_run_t '/srv/mycupsd_lpd_con‐
132 tent(/.*)?'
133 restorecon -R -v /srv/mycupsd_lpd_content
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135 Note: SELinux often uses regular expressions to specify labels that
136 match multiple files.
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138 The following file types are defined for cupsd_lpd:
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142 cupsd_lpd_exec_t
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144 - Set files with the cupsd_lpd_exec_t type, if you want to transition
145 an executable to the cupsd_lpd_t domain.
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149 cupsd_lpd_tmp_t
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151 - Set files with the cupsd_lpd_tmp_t type, if you want to store cupsd
152 lpd temporary files in the /tmp directories.
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156 cupsd_lpd_var_run_t
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158 - Set files with the cupsd_lpd_var_run_t type, if you want to store the
159 cupsd lpd files under the /run or /var/run directory.
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163 Note: File context can be temporarily modified with the chcon command.
164 If you want to permanently change the file context you need to use the
165 semanage fcontext command. This will modify the SELinux labeling data‐
166 base. You will need to use restorecon to apply the labels.
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170 semanage fcontext can also be used to manipulate default file context
171 mappings.
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173 semanage permissive can also be used to manipulate whether or not a
174 process type is permissive.
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176 semanage module can also be used to enable/disable/install/remove pol‐
177 icy modules.
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179 semanage boolean can also be used to manipulate the booleans
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182 system-config-selinux is a GUI tool available to customize SELinux pol‐
183 icy settings.
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187 This manual page was auto-generated using sepolicy manpage .
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191 selinux(8), cupsd_lpd(8), semanage(8), restorecon(8), chcon(1), sepol‐
192 icy(8), setsebool(8)
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196cupsd_lpd 19-10-08 cupsd_lpd_selinux(8)