Security-Enhanced Linux secures the ping processes via flexible mandatory access control.
If you want to allow confined users the ability to execute the ping and traceroute commands, you must turn on the selinuxuser_ping boolean.
setsebool -P selinuxuser_ping 1
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd serve for the pingd_t, ping_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 pingd_t, ping_t, you must turn on the kerberos_enabled boolean.
setsebool -P kerberos_enabled 1
You can see the context of a file using the -Z option to lsP Policy governs the access confined processes have to these files. SELinux ping policy is very flexible allowing users to setup their ping processes in as secure a method as possible.
The following file types are defined for ping:
ping_exec_t
- Set files with the ping_exec_t type, if you want to transition an executable to the ping_t domain.
pingd_etc_t
- Set files with the pingd_etc_t type, if you want to store pingd files in the /etc directories.
pingd_exec_t
- Set files with the pingd_exec_t type, if you want to transition an executable to the pingd_t domain.
pingd_initrc_exec_t
- Set files with the pingd_initrc_exec_t type, if you want to transition an executable to the pingd_initrc_t domain.
pingd_modules_t
- Set files with the pingd_modules_t type, if you want to treat the files as pingd modules.
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.
You can see the types associated with a port by using the following command:
semanage port -l
Policy governs the access confined processes have to these ports. SELinux ping policy is very flexible allowing users to setup their ping processes in as secure a method as possible.
The following port types are defined for ping:
Default Defined Ports: tcp 9125
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux ping policy is very flexible allowing users to setup their ping processes in as secure a method as possible.
The following process types are defined for ping:
ping_t, pingd_t
Note: semanage permissive -a PROCESS_TYPE can be used to make a process type permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.
The SELinux user type ping_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions.