Security-Enhanced Linux secures the memcached processes via flexible mandatory access control.
If you want to allow httpd to connect to memcache server, you must turn on the httpd_can_network_memcache boolean.
setsebool -P httpd_can_network_memcache 1
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd serve for the memcached_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 memcached_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 memcached policy is very flexible allowing users to setup their memcached processes in as secure a method as possible.
The following file types are defined for memcached:
memcached_exec_t
- Set files with the memcached_exec_t type, if you want to transition an executable to the memcached_t domain.
memcached_initrc_exec_t
- Set files with the memcached_initrc_exec_t type, if you want to transition an executable to the memcached_initrc_t domain.
memcached_var_run_t
- Set files with the memcached_var_run_t type, if you want to store the memcached files under the /run directory.
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 memcached policy is very flexible allowing users to setup their memcached processes in as secure a method as possible.
The following port types are defined for memcached:
Default Defined Ports: tcp 11211 udp 11211
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux memcached policy is very flexible allowing users to setup their memcached processes in as secure a method as possible.
The following process types are defined for memcached:
memcached_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 memcached_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.
memcached_var_run_t
/var/run/memcached(/.*)?
/var/run/ipa_memcached(/.*)?
semanage permissive can also be used to manipulate wheth