1smbcontrol_selinux(8) SELinux Policy smbcontrol smbcontrol_selinux(8)
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6 smbcontrol_selinux - Security Enhanced Linux Policy for the smbcontrol
7 processes
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10 Security-Enhanced Linux secures the smbcontrol processes via flexible
11 mandatory access control.
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13 The smbcontrol processes execute with the smbcontrol_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 smbcontrol_t
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24 The smbcontrol_t SELinux type can be entered via the smbcontrol_exec_t
25 file type.
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27 The default entrypoint paths for the smbcontrol_t domain are the fol‐
28 lowing:
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30 /usr/bin/smbcontrol
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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 smbcontrol policy is very flexible allowing users to setup their smb‐
40 control processes in as secure a method as possible.
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42 The following process types are defined for smbcontrol:
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44 smbcontrol_t
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46 Note: semanage permissive -a smbcontrol_t can be used to make the
47 process type smbcontrol_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. smbcon‐
54 trol policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run smbcontrol with the tightest
56 access possible.
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60 If you want to deny any process from ptracing or debugging any other
61 processes, you must turn on the deny_ptrace boolean. Enabled by
62 default.
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64 setsebool -P deny_ptrace 1
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68 If you want to allow any process to mmap any file on system with
69 attribute file_type, you must turn on the domain_can_mmap_files bool‐
70 ean. Enabled by default.
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72 setsebool -P domain_can_mmap_files 1
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76 If you want to allow all domains write to kmsg_device, while kernel is
77 executed with systemd.log_target=kmsg parameter, you must turn on the
78 domain_can_write_kmsg boolean. Disabled by default.
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80 setsebool -P domain_can_write_kmsg 1
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84 If you want to allow all domains to use other domains file descriptors,
85 you must turn on the domain_fd_use boolean. Enabled by default.
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87 setsebool -P domain_fd_use 1
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91 If you want to allow all domains to have the kernel load modules, you
92 must turn on the domain_kernel_load_modules boolean. Disabled by
93 default.
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95 setsebool -P domain_kernel_load_modules 1
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99 If you want to allow all domains to execute in fips_mode, you must turn
100 on the fips_mode boolean. Enabled by default.
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102 setsebool -P fips_mode 1
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106 If you want to enable reading of urandom for all domains, you must turn
107 on the global_ssp boolean. Disabled by default.
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109 setsebool -P global_ssp 1
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114 The SELinux process type smbcontrol_t can manage files labeled with the
115 following file types. The paths listed are the default paths for these
116 file types. Note the processes UID still need to have DAC permissions.
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118 samba_var_t
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120 /var/nmbd(/.*)?
121 /var/lib/samba(/.*)?
122 /var/cache/samba(/.*)?
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126 SELinux requires files to have an extended attribute to define the file
127 type.
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129 You can see the context of a file using the -Z option to ls
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131 Policy governs the access confined processes have to these files.
132 SELinux smbcontrol policy is very flexible allowing users to setup
133 their smbcontrol processes in as secure a method as possible.
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135 The following file types are defined for smbcontrol:
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139 smbcontrol_exec_t
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141 - Set files with the smbcontrol_exec_t type, if you want to transition
142 an executable to the smbcontrol_t domain.
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146 Note: File context can be temporarily modified with the chcon command.
147 If you want to permanently change the file context you need to use the
148 semanage fcontext command. This will modify the SELinux labeling data‐
149 base. You will need to use restorecon to apply the labels.
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153 semanage fcontext can also be used to manipulate default file context
154 mappings.
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156 semanage permissive can also be used to manipulate whether or not a
157 process type is permissive.
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159 semanage module can also be used to enable/disable/install/remove pol‐
160 icy modules.
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162 semanage boolean can also be used to manipulate the booleans
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165 system-config-selinux is a GUI tool available to customize SELinux pol‐
166 icy settings.
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170 This manual page was auto-generated using sepolicy manpage .
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174 selinux(8), smbcontrol(8), semanage(8), restorecon(8), chcon(1), sepol‐
175 icy(8) , setsebool(8)
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179smbcontrol 19-04-25 smbcontrol_selinux(8)