1groupadd_selinux(8) SELinux Policy groupadd groupadd_selinux(8)
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6 groupadd_selinux - Security Enhanced Linux Policy for the groupadd pro‐
7 cesses
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10 Security-Enhanced Linux secures the groupadd processes via flexible
11 mandatory access control.
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13 The groupadd processes execute with the groupadd_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 groupadd_t
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24 The groupadd_t SELinux type can be entered via the groupadd_exec_t file
25 type.
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27 The default entrypoint paths for the groupadd_t domain are the follow‐
28 ing:
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30 /usr/bin/gpasswd, /usr/sbin/gpasswd, /usr/sbin/groupadd,
31 /usr/sbin/groupdel, /usr/sbin/groupmod
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34 SELinux defines process types (domains) for each process running on the
35 system
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37 You can see the context of a process using the -Z option to ps
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39 Policy governs the access confined processes have to files. SELinux
40 groupadd policy is very flexible allowing users to setup their groupadd
41 processes in as secure a method as possible.
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43 The following process types are defined for groupadd:
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45 groupadd_t
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47 Note: semanage permissive -a groupadd_t can be used to make the process
48 type groupadd_t permissive. SELinux does not deny access to permissive
49 process types, but the AVC (SELinux denials) messages are still gener‐
50 ated.
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54 SELinux policy is customizable based on least access required.
55 groupadd policy is extremely flexible and has several booleans that
56 allow you to manipulate the policy and run groupadd with the tightest
57 access possible.
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61 If you want to allow users to resolve user passwd entries directly from
62 ldap rather then using a sssd server, you must turn on the authlo‐
63 gin_nsswitch_use_ldap boolean. Disabled by default.
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65 setsebool -P authlogin_nsswitch_use_ldap 1
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69 If you want to allow all daemons the ability to read/write terminals,
70 you must turn on the daemons_use_tty boolean. Disabled by default.
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72 setsebool -P daemons_use_tty 1
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76 If you want to deny any process from ptracing or debugging any other
77 processes, you must turn on the deny_ptrace boolean. Enabled by
78 default.
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80 setsebool -P deny_ptrace 1
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84 If you want to allow any process to mmap any file on system with
85 attribute file_type, you must turn on the domain_can_mmap_files bool‐
86 ean. Enabled by default.
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88 setsebool -P domain_can_mmap_files 1
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92 If you want to allow all domains write to kmsg_device, while kernel is
93 executed with systemd.log_target=kmsg parameter, you must turn on the
94 domain_can_write_kmsg boolean. Disabled by default.
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96 setsebool -P domain_can_write_kmsg 1
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100 If you want to allow all domains to use other domains file descriptors,
101 you must turn on the domain_fd_use boolean. Enabled by default.
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103 setsebool -P domain_fd_use 1
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107 If you want to allow all domains to have the kernel load modules, you
108 must turn on the domain_kernel_load_modules boolean. Disabled by
109 default.
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111 setsebool -P domain_kernel_load_modules 1
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115 If you want to allow all domains to execute in fips_mode, you must turn
116 on the fips_mode boolean. Enabled by default.
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118 setsebool -P fips_mode 1
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122 If you want to enable reading of urandom for all domains, you must turn
123 on the global_ssp boolean. Disabled by default.
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125 setsebool -P global_ssp 1
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129 If you want to allow confined applications to run with kerberos, you
130 must turn on the kerberos_enabled boolean. Enabled by default.
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132 setsebool -P kerberos_enabled 1
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136 If you want to allow system to run with NIS, you must turn on the
137 nis_enabled boolean. Disabled by default.
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139 setsebool -P nis_enabled 1
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143 If you want to allow confined applications to use nscd shared memory,
144 you must turn on the nscd_use_shm boolean. Disabled by default.
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146 setsebool -P nscd_use_shm 1
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150 If you want to allow samba to act as the domain controller, add users,
151 groups and change passwords, you must turn on the samba_domain_con‐
152 troller boolean. Disabled by default.
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154 setsebool -P samba_domain_controller 1
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159 The SELinux process type groupadd_t can manage files labeled with the
160 following file types. The paths listed are the default paths for these
161 file types. Note the processes UID still need to have DAC permissions.
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163 faillog_t
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165 /var/log/btmp.*
166 /var/log/faillog.*
167 /var/log/tallylog.*
168 /var/run/faillock(/.*)?
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170 lastlog_t
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172 /var/log/lastlog.*
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174 passwd_file_t
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176 /etc/group[-+]?
177 /etc/passwd[-+]?
178 /etc/passwd.adjunct.*
179 /etc/ptmptmp
180 /etc/.pwd.lock
181 /etc/group.lock
182 /etc/passwd.OLD
183 /etc/passwd.lock
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185 security_t
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187 /selinux
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189 shadow_t
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191 /etc/shadow.*
192 /etc/gshadow.*
193 /etc/nshadow.*
194 /var/db/shadow.*
195 /etc/security/opasswd
196 /etc/security/opasswd.old
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200 SELinux requires files to have an extended attribute to define the file
201 type.
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203 You can see the context of a file using the -Z option to ls
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205 Policy governs the access confined processes have to these files.
206 SELinux groupadd policy is very flexible allowing users to setup their
207 groupadd processes in as secure a method as possible.
208
209 The following file types are defined for groupadd:
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213 groupadd_exec_t
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215 - Set files with the groupadd_exec_t type, if you want to transition an
216 executable to the groupadd_t domain.
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219 Paths:
220 /usr/bin/gpasswd, /usr/sbin/gpasswd, /usr/sbin/groupadd,
221 /usr/sbin/groupdel, /usr/sbin/groupmod
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224 Note: File context can be temporarily modified with the chcon command.
225 If you want to permanently change the file context you need to use the
226 semanage fcontext command. This will modify the SELinux labeling data‐
227 base. You will need to use restorecon to apply the labels.
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231 semanage fcontext can also be used to manipulate default file context
232 mappings.
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234 semanage permissive can also be used to manipulate whether or not a
235 process type is permissive.
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237 semanage module can also be used to enable/disable/install/remove pol‐
238 icy modules.
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240 semanage boolean can also be used to manipulate the booleans
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243 system-config-selinux is a GUI tool available to customize SELinux pol‐
244 icy settings.
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248 This manual page was auto-generated using sepolicy manpage .
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252 selinux(8), groupadd(8), semanage(8), restorecon(8), chcon(1), sepol‐
253 icy(8) , setsebool(8)
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257groupadd 19-04-25 groupadd_selinux(8)