1portmap_helper_selinux(8)SELinux Policy portmap_helperportmap_helper_selinux(8)
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6 portmap_helper_selinux - Security Enhanced Linux Policy for the
7 portmap_helper processes
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10 Security-Enhanced Linux secures the portmap_helper processes via flexi‐
11 ble mandatory access control.
12 The portmap_helper processes execute with the portmap_helper_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep portmap_helper_t
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24 The portmap_helper_t SELinux type can be entered via the
25 portmap_helper_exec_t file type.
26 The default entrypoint paths for the portmap_helper_t domain are the
28 following:
29 /sbin/pmap_set, /sbin/pmap_dump, /usr/sbin/pmap_set,
31 /usr/sbin/pmap_dump
32
34 SELinux defines process types (domains) for each process running on the
35 system
36 You can see the context of a process using the -Z option to ps
38 Policy governs the access confined processes have to files. SELinux
40 portmap_helper policy is very flexible allowing users to setup their
41 portmap_helper processes in as secure a method as possible.
42 The following process types are defined for portmap_helper:
44 portmap_helper_t
46 Note: semanage permissive -a portmap_helper_t can be used to make the
48 process type portmap_helper_t permissive. SELinux does not deny access
49 to permissive process types, but the AVC (SELinux denials) messages are
50 still generated.
51
54 SELinux policy is customizable based on least access required.
55 portmap_helper policy is extremely flexible and has several booleans
56 that allow you to manipulate the policy and run portmap_helper with the
57 tightest access possible.
58 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.
64 setsebool -P authlogin_nsswitch_use_ldap 1
66 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.
71 setsebool -P daemons_use_tty 1
73 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.
79 setsebool -P deny_ptrace 1
81 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.
87 setsebool -P domain_can_mmap_files 1
89 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.
95 setsebool -P domain_can_write_kmsg 1
97 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.
102 setsebool -P domain_fd_use 1
104 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.
110 setsebool -P domain_kernel_load_modules 1
112 If you want to allow all domains to execute in fips_mode, you must turn
116 on the fips_mode boolean. Enabled by default.
117 setsebool -P fips_mode 1
119 If you want to enable reading of urandom for all domains, you must turn
123 on the global_ssp boolean. Disabled by default.
124 setsebool -P global_ssp 1
126 If you want to allow confined applications to run with kerberos, you
130 must turn on the kerberos_enabled boolean. Enabled by default.
131 setsebool -P kerberos_enabled 1
133 If you want to allow system to run with NIS, you must turn on the
137 nis_enabled boolean. Disabled by default.
138 setsebool -P nis_enabled 1
140 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.
145 setsebool -P nscd_use_shm 1
147
151 The SELinux process type portmap_helper_t can manage files labeled with
152 the following file types. The paths listed are the default paths for
153 these file types. Note the processes UID still need to have DAC per‐
154 missions.
155 initrc_var_run_t
157 /var/run/utmp
159 /var/run/random-seed
160 /var/run/runlevel.dir
161 /var/run/setmixer_flag
162 portmap_var_run_t
164 /var/run/portmap_mapping
166 /var/run/portmap.upgrade-state
167 var_run_t
169 /run/.*
171 /var/run/.*
172 /run
173 /var/run
174 /var/run
175 /var/spool/postfix/pid
176
179 SELinux requires files to have an extended attribute to define the file
180 type.
181 You can see the context of a file using the -Z option to ls
183 Policy governs the access confined processes have to these files.
185 SELinux portmap_helper policy is very flexible allowing users to setup
186 their portmap_helper processes in as secure a method as possible.
187 The following file types are defined for portmap_helper:
189 portmap_helper_exec_t
193 - Set files with the portmap_helper_exec_t type, if you want to transi‐
195 tion an executable to the portmap_helper_t domain.
196 Paths:
199 /sbin/pmap_set, /sbin/pmap_dump, /usr/sbin/pmap_set,
200 /usr/sbin/pmap_dump
201 Note: File context can be temporarily modified with the chcon command.
204 If you want to permanently change the file context you need to use the
205 semanage fcontext command. This will modify the SELinux labeling data‐
206 base. You will need to use restorecon to apply the labels.
207
210 semanage fcontext can also be used to manipulate default file context
211 mappings.
212 semanage permissive can also be used to manipulate whether or not a
214 process type is permissive.
215 semanage module can also be used to enable/disable/install/remove pol‐
217 icy modules.
218 semanage boolean can also be used to manipulate the booleans
220 system-config-selinux is a GUI tool available to customize SELinux pol‐
223 icy settings.
224
227 This manual page was auto-generated using sepolicy manpage .
228
231 selinux(8), portmap_helper(8), semanage(8), restorecon(8), chcon(1),
232 sepolicy(8) , setsebool(8)
233portmap_helper 19-04-25 portmap_helper_selinux(8)