1samba_net_selinux(8) SELinux Policy samba_net samba_net_selinux(8)
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6 samba_net_selinux - Security Enhanced Linux Policy for the samba_net
7 processes
8
10 Security-Enhanced Linux secures the samba_net processes via flexible
11 mandatory access control.
12 The samba_net processes execute with the samba_net_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
16 For example:
18 ps -eZ | grep samba_net_t
20
24 The samba_net_t SELinux type can be entered via the samba_net_exec_t
25 file type.
26 The default entrypoint paths for the samba_net_t domain are the follow‐
28 ing:
29 /usr/bin/net
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 samba_net policy is very flexible allowing users to setup their
40 samba_net processes in as secure a method as possible.
41 The following process types are defined for samba_net:
43 samba_net_t
45 Note: semanage permissive -a samba_net_t can be used to make the
47 process type samba_net_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
53 SELinux policy is customizable based on least access required.
54 samba_net policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run samba_net with the tightest
56 access possible.
57 If you want to allow all domains to execute in fips_mode, you must turn
61 on the fips_mode boolean. Enabled by default.
62 setsebool -P fips_mode 1
64 If you want to allow system to run with NIS, you must turn on the
68 nis_enabled boolean. Disabled by default.
69 setsebool -P nis_enabled 1
71 If you want to support NFS home directories, you must turn on the
75 use_nfs_home_dirs boolean. Disabled by default.
76 setsebool -P use_nfs_home_dirs 1
78 If you want to support SAMBA home directories, you must turn on the
82 use_samba_home_dirs boolean. Disabled by default.
83 setsebool -P use_samba_home_dirs 1
85
89 The SELinux process type samba_net_t can manage files labeled with the
90 following file types. The paths listed are the default paths for these
91 file types. Note the processes UID still need to have DAC permissions.
92 auth_cache_t
94 /var/cache/coolkey(/.*)?
96 ctdbd_var_lib_t
98 /var/lib/ctdb(/.*)?
100 /var/lib/ctdbd(/.*)?
101 krb5_host_rcache_t
103 /var/tmp/krb5_0.rcache2
105 /var/cache/krb5rcache(/.*)?
106 /var/tmp/nfs_0
107 /var/tmp/DNS_25
108 /var/tmp/host_0
109 /var/tmp/imap_0
110 /var/tmp/HTTP_23
111 /var/tmp/HTTP_48
112 /var/tmp/ldap_55
113 /var/tmp/ldap_487
114 /var/tmp/ldapmap1_0
115 krb5_keytab_t
117 /var/kerberos/krb5(/.*)?
119 /etc/krb5.keytab
120 /etc/krb5kdc/kadm5.keytab
121 /var/kerberos/krb5kdc/kadm5.keytab
122 realmd_var_cache_t
124 /var/cache/realmd(/.*)?
126 samba_net_tmp_t
128 samba_secrets_t
131 /etc/samba/smbpasswd
133 /etc/samba/passdb.tdb
134 /etc/samba/MACHINE.SID
135 /etc/samba/secrets.tdb
136
139 SELinux requires files to have an extended attribute to define the file
140 type.
141 You can see the context of a file using the -Z option to ls
143 Policy governs the access confined processes have to these files.
145 SELinux samba_net policy is very flexible allowing users to setup their
146 samba_net processes in as secure a method as possible.
147 STANDARD FILE CONTEXT
149 SELinux defines the file context types for the samba_net, if you wanted
151 to store files with these types in a diffent paths, you need to execute
152 the semanage command to specify alternate labeling and then use re‐
153 storecon to put the labels on disk.
154 semanage fcontext -a -t samba_net_tmp_t '/srv/mysamba_net_con‐
156 tent(/.*)?'
157 restorecon -R -v /srv/mysamba_net_content
158 Note: SELinux often uses regular expressions to specify labels that
160 match multiple files.
161 The following file types are defined for samba_net:
163 samba_net_exec_t
167 - Set files with the samba_net_exec_t type, if you want to transition
169 an executable to the samba_net_t domain.
170 samba_net_tmp_t
174 - Set files with the samba_net_tmp_t type, if you want to store samba
176 net temporary files in the /tmp directories.
177 Note: File context can be temporarily modified with the chcon command.
181 If you want to permanently change the file context you need to use the
182 semanage fcontext command. This will modify the SELinux labeling data‐
183 base. You will need to use restorecon to apply the labels.
184
187 semanage fcontext can also be used to manipulate default file context
188 mappings.
189 semanage permissive can also be used to manipulate whether or not a
191 process type is permissive.
192 semanage module can also be used to enable/disable/install/remove pol‐
194 icy modules.
195 semanage boolean can also be used to manipulate the booleans
197 system-config-selinux is a GUI tool available to customize SELinux pol‐
200 icy settings.
201
204 This manual page was auto-generated using sepolicy manpage .
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208 selinux(8), samba_net(8), semanage(8), restorecon(8), chcon(1), sepol‐
209 icy(8), setsebool(8)
210samba_net 21-11-19 samba_net_selinux(8)