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nagios_services_plugin_selinux(8) SELinux Policy nagios_services_plugin nagios_services_plugin_selinux(8)
NAME
nagios_services_plugin_selinux - Security Enhanced Linux Policy for the nagios_services_plugin processes
DESCRIPTION
Security-Enhanced Linux secures the nagios_services_plugin processes via flexible mandatory access control.
The nagios_services_plugin processes execute with the nagios_services_plugin_t SELinux type. You can check if you have these processes run-
ning by executing the ps command with the -Z qualifier.
For example:
ps -eZ | grep nagios_services_plugin_t
ENTRYPOINTS
The nagios_services_plugin_t SELinux type can be entered via the nagios_services_plugin_exec_t file type.
The default entrypoint paths for the nagios_services_plugin_t domain are the following:
/usr/lib/nagios/plugins/check_ntp.*, /usr/lib/nagios/plugins/check_snmp.*, /usr/lib/nagios/plugins/check_nt, /usr/lib/nagios/plug-
ins/check_dig, /usr/lib/nagios/plugins/check_dns, /usr/lib/nagios/plugins/check_rpc, /usr/lib/nagios/plugins/check_tcp,
/usr/lib/nagios/plugins/check_sip, /usr/lib/nagios/plugins/check_ssh, /usr/lib/nagios/plugins/check_ups, /usr/lib/nagios/plug-
ins/check_dhcp, /usr/lib/nagios/plugins/check_game, /usr/lib/nagios/plugins/check_hpjd, /usr/lib/nagios/plugins/check_http,
/usr/lib/nagios/plugins/check_icmp, /usr/lib/nagios/plugins/check_ircd, /usr/lib/nagios/plugins/check_ldap, /usr/lib/nagios/plug-
ins/check_nrpe, /usr/lib/nagios/plugins/check_ping, /usr/lib/nagios/plugins/check_real, /usr/lib/nagios/plugins/check_time,
/usr/lib/nagios/plugins/check_smtp, /usr/lib/nagios/plugins/check_dummy, /usr/lib/nagios/plugins/check_fping, /usr/lib/nagios/plug-
ins/check_mysql, /usr/lib/nagios/plugins/check_pgsql, /usr/lib/nagios/plugins/check_breeze, /usr/lib/nagios/plugins/check_oracle,
/usr/lib/nagios/plugins/check_radius, /usr/lib/nagios/plugins/check_cluster, /usr/lib/nagios/plugins/check_mysql_query
PROCESS TYPES
SELinux defines process types (domains) for each process running on the system
You can see the context of a process using the -Z option to ps
Policy governs the access confined processes have to files. SELinux nagios_services_plugin policy is very flexible allowing users to setup
their nagios_services_plugin processes in as secure a method as possible.
The following process types are defined for nagios_services_plugin:
nagios_services_plugin_t
Note: semanage permissive -a nagios_services_plugin_t can be used to make the process type nagios_services_plugin_t permissive. SELinux
does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.
BOOLEANS
SELinux policy is customizable based on least access required. nagios_services_plugin policy is extremely flexible and has several bool-
eans that allow you to manipulate the policy and run nagios_services_plugin with the tightest access possible.
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn on the authlo-
gin_nsswitch_use_ldap boolean. Disabled by default.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to deny any process from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean. Enabled by
default.
setsebool -P deny_ptrace 1
If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default.
setsebool -P domain_fd_use 1
If you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean. Disabled by
default.
setsebool -P domain_kernel_load_modules 1
If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.
setsebool -P fips_mode 1
If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.
setsebool -P global_ssp 1
If you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by default.
setsebool -P kerberos_enabled 1
If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.
setsebool -P nis_enabled 1
If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Disabled by default.
setsebool -P nscd_use_shm 1
NSSWITCH DOMAIN
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server for the nagios_services_plug-
in_t, you must turn on the authlogin_nsswitch_use_ldap boolean.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow confined applications to run with kerberos for the nagios_services_plugin_t, you must turn on the kerberos_enabled
boolean.
setsebool -P kerberos_enabled 1
FILE CONTEXTS
SELinux requires files to have an extended attribute to define the file type.
You can see the context of a file using the -Z option to ls
Policy governs the access confined processes have to these files. SELinux nagios_services_plugin policy is very flexible allowing users to
setup their nagios_services_plugin processes in as secure a method as possible.
STANDARD FILE CONTEXT
SELinux defines the file context types for the nagios_services_plugin, if you wanted to store files with these types in a diffent paths,
you need to execute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk.
semanage fcontext -a -t nagios_services_plugin_exec_t '/srv/nagios_services_plugin/content(/.*)?'
restorecon -R -v /srv/mynagios_services_plugin_content
Note: SELinux often uses regular expressions to specify labels that match multiple files.
The following file types are defined for nagios_services_plugin:
nagios_services_plugin_exec_t
- Set files with the nagios_services_plugin_exec_t type, if you want to transition an executable to the nagios_services_plugin_t domain.
Paths:
/usr/lib/nagios/plugins/check_ntp.*, /usr/lib/nagios/plugins/check_snmp.*, /usr/lib/nagios/plugins/check_nt, /usr/lib/nagios/plug-
ins/check_dig, /usr/lib/nagios/plugins/check_dns, /usr/lib/nagios/plugins/check_rpc, /usr/lib/nagios/plugins/check_tcp,
/usr/lib/nagios/plugins/check_sip, /usr/lib/nagios/plugins/check_ssh, /usr/lib/nagios/plugins/check_ups, /usr/lib/nagios/plug-
ins/check_dhcp, /usr/lib/nagios/plugins/check_game, /usr/lib/nagios/plugins/check_hpjd, /usr/lib/nagios/plugins/check_http,
/usr/lib/nagios/plugins/check_icmp, /usr/lib/nagios/plugins/check_ircd, /usr/lib/nagios/plugins/check_ldap, /usr/lib/nagios/plug-
ins/check_nrpe, /usr/lib/nagios/plugins/check_ping, /usr/lib/nagios/plugins/check_real, /usr/lib/nagios/plugins/check_time,
/usr/lib/nagios/plugins/check_smtp, /usr/lib/nagios/plugins/check_dummy, /usr/lib/nagios/plugins/check_fping, /usr/lib/nagios/plug-
ins/check_mysql, /usr/lib/nagios/plugins/check_pgsql, /usr/lib/nagios/plugins/check_breeze, /usr/lib/nagios/plugins/check_oracle,
/usr/lib/nagios/plugins/check_radius, /usr/lib/nagios/plugins/check_cluster, /usr/lib/nagios/plugins/check_mysql_query
Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use
the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.
COMMANDS
semanage fcontext can also be used to manipulate default file context mappings.
semanage permissive can also be used to manipulate whether or not a process type is permissive.
semanage module can also be used to enable/disable/install/remove policy modules.
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux policy settings.
AUTHOR
This manual page was auto-generated using sepolicy manpage .
SEE ALSO
selinux(8), nagios_services_plugin(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8)
nagios_services_plugin 14-06-10 nagios_services_plugin_selinux(8)
