1samba_unconfined_net_seSlEiLniunxu(x8)Policy samba_unconsfaimnbead__unnectonfined_net_selinux(8)
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6 samba_unconfined_net_selinux - Security Enhanced Linux Policy for the
7 samba_unconfined_net processes
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10 Security-Enhanced Linux secures the samba_unconfined_net processes via
11 flexible mandatory access control.
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13 The samba_unconfined_net processes execute with the samba_uncon‐
14 fined_net_t SELinux type. You can check if you have these processes
15 running by executing the ps command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep samba_unconfined_net_t
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24 The samba_unconfined_net_t SELinux type can be entered via the
25 samba_net_exec_t file type.
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27 The default entrypoint paths for the samba_unconfined_net_t domain are
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30 /usr/bin/net
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33 SELinux defines process types (domains) for each process running on the
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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 samba_unconfined_net policy is very flexible allowing users to setup
40 their samba_unconfined_net processes in as secure a method as possible.
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42 The following process types are defined for samba_unconfined_net:
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44 samba_unconfined_net_t
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46 Note: semanage permissive -a samba_unconfined_net_t can be used to make
47 the process type samba_unconfined_net_t permissive. SELinux does not
48 deny access to permissive process types, but the AVC (SELinux denials)
49 messages are still generated.
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53 SELinux policy is customizable based on least access required.
54 samba_unconfined_net policy is extremely flexible and has several bool‐
55 eans that allow you to manipulate the policy and run samba_uncon‐
56 fined_net with the tightest access possible.
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60 If you want to deny user domains applications to map a memory region as
61 both executable and writable, this is dangerous and the executable
62 should be reported in bugzilla, you must turn on the deny_execmem bool‐
63 ean. Enabled by default.
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65 setsebool -P deny_execmem 1
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69 If you want to deny any process from ptracing or debugging any other
70 processes, you must turn on the deny_ptrace boolean. Enabled by
71 default.
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73 setsebool -P deny_ptrace 1
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77 If you want to allow any process to mmap any file on system with
78 attribute file_type, you must turn on the domain_can_mmap_files bool‐
79 ean. Enabled by default.
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81 setsebool -P domain_can_mmap_files 1
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85 If you want to allow all domains write to kmsg_device, while kernel is
86 executed with systemd.log_target=kmsg parameter, you must turn on the
87 domain_can_write_kmsg boolean. Disabled by default.
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89 setsebool -P domain_can_write_kmsg 1
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93 If you want to allow all domains to use other domains file descriptors,
94 you must turn on the domain_fd_use boolean. Enabled by default.
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96 setsebool -P domain_fd_use 1
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100 If you want to allow all domains to have the kernel load modules, you
101 must turn on the domain_kernel_load_modules boolean. Disabled by
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104 setsebool -P domain_kernel_load_modules 1
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108 If you want to allow all domains to execute in fips_mode, you must turn
109 on the fips_mode boolean. Enabled by default.
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111 setsebool -P fips_mode 1
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115 If you want to enable reading of urandom for all domains, you must turn
116 on the global_ssp boolean. Disabled by default.
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118 setsebool -P global_ssp 1
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122 If you want to control the ability to mmap a low area of the address
123 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
124 the mmap_low_allowed boolean. Disabled by default.
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126 setsebool -P mmap_low_allowed 1
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130 If you want to disable kernel module loading, you must turn on the
131 secure_mode_insmod boolean. Enabled by default.
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133 setsebool -P secure_mode_insmod 1
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137 If you want to boolean to determine whether the system permits loading
138 policy, setting enforcing mode, and changing boolean values. Set this
139 to true and you have to reboot to set it back, you must turn on the
140 secure_mode_policyload boolean. Enabled by default.
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142 setsebool -P secure_mode_policyload 1
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146 If you want to allow unconfined executables to make their heap memory
147 executable. Doing this is a really bad idea. Probably indicates a
148 badly coded executable, but could indicate an attack. This executable
149 should be reported in bugzilla, you must turn on the selin‐
150 uxuser_execheap boolean. Disabled by default.
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152 setsebool -P selinuxuser_execheap 1
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156 If you want to allow all unconfined executables to use libraries
157 requiring text relocation that are not labeled textrel_shlib_t, you
158 must turn on the selinuxuser_execmod boolean. Enabled by default.
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160 setsebool -P selinuxuser_execmod 1
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164 If you want to allow unconfined executables to make their stack exe‐
165 cutable. This should never, ever be necessary. Probably indicates a
166 badly coded executable, but could indicate an attack. This executable
167 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
168 stack boolean. Enabled by default.
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170 setsebool -P selinuxuser_execstack 1
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174 If you want to support X userspace object manager, you must turn on the
175 xserver_object_manager boolean. Enabled by default.
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177 setsebool -P xserver_object_manager 1
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182 The SELinux process type samba_unconfined_net_t can manage files
183 labeled with the following file types. The paths listed are the
184 default paths for these file types. Note the processes UID still need
185 to have DAC permissions.
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187 file_type
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189 all files on the system
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193 semanage fcontext can also be used to manipulate default file context
194 mappings.
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196 semanage permissive can also be used to manipulate whether or not a
197 process type is permissive.
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199 semanage module can also be used to enable/disable/install/remove pol‐
200 icy modules.
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202 semanage boolean can also be used to manipulate the booleans
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205 system-config-selinux is a GUI tool available to customize SELinux pol‐
206 icy settings.
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210 This manual page was auto-generated using sepolicy manpage .
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214 selinux(8), samba_unconfined_net(8), semanage(8), restorecon(8),
215 chcon(1), sepolicy(8) , setsebool(8)
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219samba_unconfined_net 19-04-25 samba_unconfined_net_selinux(8)