1smbmount_selinux(8) SELinux Policy smbmount smbmount_selinux(8)
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6 smbmount_selinux - Security Enhanced Linux Policy for the smbmount pro‐
7 cesses
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10 Security-Enhanced Linux secures the smbmount processes via flexible
11 mandatory access control.
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13 The smbmount processes execute with the smbmount_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 smbmount_t
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24 The smbmount_t SELinux type can be entered via the smbmount_exec_t file
25 type.
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27 The default entrypoint paths for the smbmount_t domain are the follow‐
28 ing:
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30 /usr/bin/smbmnt, /usr/bin/smbmount
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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 smbmount policy is very flexible allowing users to setup their smbmount
40 processes in as secure a method as possible.
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42 The following process types are defined for smbmount:
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44 smbmount_t
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46 Note: semanage permissive -a smbmount_t can be used to make the process
47 type smbmount_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
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53 SELinux policy is customizable based on least access required. smb‐
54 mount policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run smbmount with the tightest access
56 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 The SELinux process type smbmount_t can manage files labeled with the
144 following file types. The paths listed are the default paths for these
145 file types. Note the processes UID still need to have DAC permissions.
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147 etc_runtime_t
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149 /[^/]+
150 /etc/mtab.*
151 /etc/blkid(/.*)?
152 /etc/nologin.*
153 /etc/.fstab.hal..+
154 /halt
155 /fastboot
156 /poweroff
157 /etc/cmtab
158 /forcefsck
159 /.autofsck
160 /.suspended
161 /fsckoptions
162 /var/.updated
163 /etc/.updated
164 /.autorelabel
165 /etc/securetty
166 /etc/nohotplug
167 /etc/killpower
168 /etc/ioctl.save
169 /etc/fstab.REVOKE
170 /etc/network/ifstate
171 /etc/sysconfig/hwconf
172 /etc/ptal/ptal-printd-like
173 /etc/sysconfig/iptables.save
174 /etc/xorg.conf.d/00-system-setup-keyboard.conf
175 /etc/X11/xorg.conf.d/00-system-setup-keyboard.conf
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177 samba_log_t
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179 /var/log/samba(/.*)?
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181 samba_secrets_t
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183 /etc/samba/smbpasswd
184 /etc/samba/passdb.tdb
185 /etc/samba/MACHINE.SID
186 /etc/samba/secrets.tdb
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188 samba_var_t
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190 /var/nmbd(/.*)?
191 /var/lib/samba(/.*)?
192 /var/cache/samba(/.*)?
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196 SELinux requires files to have an extended attribute to define the file
197 type.
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199 You can see the context of a file using the -Z option to ls
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201 Policy governs the access confined processes have to these files.
202 SELinux smbmount policy is very flexible allowing users to setup their
203 smbmount processes in as secure a method as possible.
204
205 The following file types are defined for smbmount:
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209 smbmount_exec_t
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211 - Set files with the smbmount_exec_t type, if you want to transition an
212 executable to the smbmount_t domain.
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215 Paths:
216 /usr/bin/smbmnt, /usr/bin/smbmount
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219 Note: File context can be temporarily modified with the chcon command.
220 If you want to permanently change the file context you need to use the
221 semanage fcontext command. This will modify the SELinux labeling data‐
222 base. You will need to use restorecon to apply the labels.
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226 semanage fcontext can also be used to manipulate default file context
227 mappings.
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229 semanage permissive can also be used to manipulate whether or not a
230 process type is permissive.
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232 semanage module can also be used to enable/disable/install/remove pol‐
233 icy modules.
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235 semanage boolean can also be used to manipulate the booleans
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238 system-config-selinux is a GUI tool available to customize SELinux pol‐
239 icy settings.
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243 This manual page was auto-generated using sepolicy manpage .
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247 selinux(8), smbmount(8), semanage(8), restorecon(8), chcon(1), sepol‐
248 icy(8) , setsebool(8)
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252smbmount 19-04-25 smbmount_selinux(8)