nmbd_selinux(8)

1nmbd_selinux(8)               SELinux Policy nmbd              nmbd_selinux(8)
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NAME

6       nmbd_selinux - Security Enhanced Linux Policy for the nmbd processes
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DESCRIPTION

9       Security-Enhanced  Linux secures the nmbd processes via flexible manda‐
10       tory access control.
11
12       The nmbd processes execute with the nmbd_t SELinux type. You can  check
13       if  you  have  these processes running by executing the ps command with
14       the -Z qualifier.
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16       For example:
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18       ps -eZ | grep nmbd_t
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ENTRYPOINTS

23       The nmbd_t SELinux type can be entered via the nmbd_exec_t file type.
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25       The default entrypoint paths for the nmbd_t domain are the following:
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27       /usr/sbin/nmbd
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PROCESS TYPES

30       SELinux defines process types (domains) for each process running on the
31       system
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33       You can see the context of a process using the -Z option to ps
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35       Policy  governs  the  access confined processes have to files.  SELinux
36       nmbd policy is very flexible allowing users to setup  their  nmbd  pro‐
37       cesses in as secure a method as possible.
38
39       The following process types are defined for nmbd:
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41       nmbd_t
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43       Note:  semanage  permissive  -a  nmbd_t can be used to make the process
44       type nmbd_t permissive. SELinux does  not  deny  access  to  permissive
45       process  types, but the AVC (SELinux denials) messages are still gener‐
46       ated.
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BOOLEANS

50       SELinux policy is customizable based on least  access  required.   nmbd
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run nmbd with the tightest access possible.
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56       If you want to dontaudit all  daemons  scheduling  requests  (setsched,
57       sys_nice),  you  must turn on the daemons_dontaudit_scheduling boolean.
58       Enabled by default.
59
60       setsebool -P daemons_dontaudit_scheduling 1
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64       If you want to allow all domains to execute in fips_mode, you must turn
65       on the fips_mode boolean. Enabled by default.
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67       setsebool -P fips_mode 1
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71       If  you  want  to  allow  system  to run with NIS, you must turn on the
72       nis_enabled boolean. Disabled by default.
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74       setsebool -P nis_enabled 1
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78       If you want to allow samba to share any file/directory read  only,  you
79       must turn on the samba_export_all_ro boolean. Disabled by default.
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81       setsebool -P samba_export_all_ro 1
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85       If  you want to allow samba to share any file/directory read/write, you
86       must turn on the samba_export_all_rw boolean. Disabled by default.
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88       setsebool -P samba_export_all_rw 1
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PORT TYPES

93       SELinux defines port types to represent TCP and UDP ports.
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95       You can see the types associated with a port  by  using  the  following
96       command:
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98       semanage port -l
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100
101       Policy  governs  the  access  confined  processes  have to these ports.
102       SELinux nmbd policy is very flexible allowing users to setup their nmbd
103       processes in as secure a method as possible.
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105       The following port types are defined for nmbd:
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107
108       nmbd_port_t
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112       Default Defined Ports:
113                 udp 137,138
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MANAGED FILES

116       The  SELinux process type nmbd_t can manage files labeled with the fol‐
117       lowing file types.  The paths listed are the default  paths  for  these
118       file types.  Note the processes UID still need to have DAC permissions.
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120       cluster_conf_t
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122            /etc/cluster(/.*)?
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124       cluster_var_lib_t
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126            /var/lib/pcsd(/.*)?
127            /var/lib/cluster(/.*)?
128            /var/lib/openais(/.*)?
129            /var/lib/pengine(/.*)?
130            /var/lib/corosync(/.*)?
131            /usr/lib/heartbeat(/.*)?
132            /var/lib/heartbeat(/.*)?
133            /var/lib/pacemaker(/.*)?
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135       cluster_var_run_t
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137            /var/run/crm(/.*)?
138            /var/run/cman_.*
139            /var/run/rsctmp(/.*)?
140            /var/run/aisexec.*
141            /var/run/heartbeat(/.*)?
142            /var/run/pcsd-ruby.socket
143            /var/run/corosync-qnetd(/.*)?
144            /var/run/corosync-qdevice(/.*)?
145            /var/run/corosync.pid
146            /var/run/cpglockd.pid
147            /var/run/rgmanager.pid
148            /var/run/cluster/rgmanager.sk
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150       ctdbd_var_lib_t
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152            /var/lib/ctdb(/.*)?
153            /var/lib/ctdbd(/.*)?
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155       krb5_host_rcache_t
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157            /var/tmp/krb5_0.rcache2
158            /var/cache/krb5rcache(/.*)?
159            /var/tmp/nfs_0
160            /var/tmp/DNS_25
161            /var/tmp/host_0
162            /var/tmp/imap_0
163            /var/tmp/HTTP_23
164            /var/tmp/HTTP_48
165            /var/tmp/ldap_55
166            /var/tmp/ldap_487
167            /var/tmp/ldapmap1_0
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169       nmbd_var_run_t
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171            /var/run/nmbd(/.*)?
172            /var/run/samba/nmbd(/.*)?
173            /var/run/samba/nmbd.pid
174            /var/run/samba/messages.tdb
175            /var/run/samba/namelist.debug
176            /var/run/samba/unexpected.tdb
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178       non_security_file_type
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181       noxattrfs
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183            all files on file systems which do not support extended attributes
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185       root_t
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187            /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
188            /
189            /initrd
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191       samba_log_t
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193            /var/log/samba(/.*)?
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FILE CONTEXTS

197       SELinux requires files to have an extended attribute to define the file
198       type.
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200       You can see the context of a file using the -Z option to ls
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202       Policy governs the access  confined  processes  have  to  these  files.
203       SELinux nmbd policy is very flexible allowing users to setup their nmbd
204       processes in as secure a method as possible.
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206       EQUIVALENCE DIRECTORIES
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208
209       nmbd policy stores data with multiple different file context types  un‐
210       der  the /var/run/samba/nmbd directory.  If you would like to store the
211       data in a different directory you can use the semanage command to  cre‐
212       ate an equivalence mapping.  If you wanted to store this data under the
213       /srv directory you would execute the following command:
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215       semanage fcontext -a -e /var/run/samba/nmbd /srv/nmbd
216       restorecon -R -v /srv/nmbd
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218       STANDARD FILE CONTEXT
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220       SELinux defines the file context types for the nmbd, if you  wanted  to
221       store  files with these types in a different paths, you need to execute
222       the semanage command to specify alternate labeling  and  then  use  re‐
223       storecon to put the labels on disk.
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225       semanage fcontext -a -t nmbd_exec_t '/srv/nmbd/content(/.*)?'
226       restorecon -R -v /srv/mynmbd_content
227
228       Note:  SELinux  often  uses  regular expressions to specify labels that
229       match multiple files.
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231       The following file types are defined for nmbd:
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235       nmbd_exec_t
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237       - Set files with the nmbd_exec_t type, if you want to transition an ex‐
238       ecutable to the nmbd_t domain.
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242       nmbd_var_run_t
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244       - Set files with the nmbd_var_run_t type, if you want to store the nmbd
245       files under the /run or /var/run directory.
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247
248       Paths:
249            /var/run/nmbd(/.*)?,                    /var/run/samba/nmbd(/.*)?,
250            /var/run/samba/nmbd.pid,              /var/run/samba/messages.tdb,
251            /var/run/samba/namelist.debug, /var/run/samba/unexpected.tdb
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253
254       Note: File context can be temporarily modified with the chcon  command.
255       If  you want to permanently change the file context you need to use the
256       semanage fcontext command.  This will modify the SELinux labeling data‐
257       base.  You will need to use restorecon to apply the labels.
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COMMANDS

261       semanage  fcontext  can also be used to manipulate default file context
262       mappings.
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264       semanage permissive can also be used to manipulate  whether  or  not  a
265       process type is permissive.
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267       semanage  module can also be used to enable/disable/install/remove pol‐
268       icy modules.
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270       semanage port can also be used to manipulate the port definitions
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272       semanage boolean can also be used to manipulate the booleans
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274
275       system-config-selinux is a GUI tool available to customize SELinux pol‐
276       icy settings.
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AUTHOR

280       This manual page was auto-generated using sepolicy manpage .
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