1usernetctl_selinux(8) SELinux Policy usernetctl usernetctl_selinux(8)
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6 usernetctl_selinux - Security Enhanced Linux Policy for the usernetctl
7 processes
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10 Security-Enhanced Linux secures the usernetctl processes via flexible
11 mandatory access control.
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13 The usernetctl processes execute with the usernetctl_t SELinux type.
14 You can check if you have these processes running by executing the ps
15 command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep usernetctl_t
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24 The usernetctl_t SELinux type can be entered via the usernetctl_exec_t
25 file type.
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27 The default entrypoint paths for the usernetctl_t domain are the fol‐
28 lowing:
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30 /usr/sbin/usernetctl
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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 usernetctl policy is very flexible allowing users to setup their user‐
40 netctl processes in as secure a method as possible.
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42 The following process types are defined for usernetctl:
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44 usernetctl_t
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46 Note: semanage permissive -a usernetctl_t can be used to make the
47 process type usernetctl_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. user‐
54 netctl policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run usernetctl 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 deny any process from ptracing or debugging any other
69 processes, you must turn on the deny_ptrace boolean. Enabled by
70 default.
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72 setsebool -P deny_ptrace 1
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76 If you want to allow any process to mmap any file on system with
77 attribute file_type, you must turn on the domain_can_mmap_files bool‐
78 ean. Enabled by default.
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80 setsebool -P domain_can_mmap_files 1
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84 If you want to allow all domains write to kmsg_device, while kernel is
85 executed with systemd.log_target=kmsg parameter, you must turn on the
86 domain_can_write_kmsg boolean. Disabled by default.
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88 setsebool -P domain_can_write_kmsg 1
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92 If you want to allow all domains to use other domains file descriptors,
93 you must turn on the domain_fd_use boolean. Enabled by default.
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95 setsebool -P domain_fd_use 1
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99 If you want to allow all domains to have the kernel load modules, you
100 must turn on the domain_kernel_load_modules boolean. Disabled by
101 default.
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103 setsebool -P domain_kernel_load_modules 1
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107 If you want to allow all domains to execute in fips_mode, you must turn
108 on the fips_mode boolean. Enabled by default.
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110 setsebool -P fips_mode 1
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114 If you want to enable reading of urandom for all domains, you must turn
115 on the global_ssp boolean. Disabled by default.
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117 setsebool -P global_ssp 1
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121 If you want to allow confined applications to run with kerberos, you
122 must turn on the kerberos_enabled boolean. Enabled by default.
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124 setsebool -P kerberos_enabled 1
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128 If you want to allow system to run with NIS, you must turn on the
129 nis_enabled boolean. Disabled by default.
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131 setsebool -P nis_enabled 1
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135 If you want to allow confined applications to use nscd shared memory,
136 you must turn on the nscd_use_shm boolean. Disabled by default.
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138 setsebool -P nscd_use_shm 1
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143 SELinux requires files to have an extended attribute to define the file
144 type.
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146 You can see the context of a file using the -Z option to ls
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148 Policy governs the access confined processes have to these files.
149 SELinux usernetctl policy is very flexible allowing users to setup
150 their usernetctl processes in as secure a method as possible.
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152 The following file types are defined for usernetctl:
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156 usernetctl_exec_t
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158 - Set files with the usernetctl_exec_t type, if you want to transition
159 an executable to the usernetctl_t domain.
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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), usernetctl(8), semanage(8), restorecon(8), chcon(1), sepol‐
192 icy(8) , setsebool(8)
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196usernetctl 19-04-25 usernetctl_selinux(8)