Enabling Security
Describes how to enable security for the cluster, platform, ecosystem components, and network-based connections.
About this task
- Security for the cluster nodes
- Wire-level encryption for the platform and ecosystem components
- Authentication for all network-based connections
- (Optional) Data-at-rest encryption on the cluster
When you set up a cluster, you must run the configure.sh
script on each node
that you want to add to the cluster. After you enable security, review the System Behavior Changes After Enabling Security.
Basic Procedure
About this task
To enable security for the cluster, follow these steps in order:
Procedure
- If the cluster is running, shut it down.
-
Delete the
ssl_keystore
,ssl_keystore.p12
,ssl_keystore.pem
,ssl_truststore
,ssl_truststore.p12
, andssl_truststore.pem
files on a machine where wire-level security is not enabled, as theconfigure.sh
script fails if you already have these files in the directory.NOTE TheFor example, to delete the files, run the following commands:ssl_keystore
,ssl_keystore.p12
,ssl_keystore.pem
,ssl_truststore
,ssl_truststore.p12
, andssl_truststore.pem
files are generated during installation of the Web server even if you did not enable security.
If you are re-running the script due to an invocation error from a previous run, thecd /opt/mapr/conf /bin/rm -f ssl_keystore ssl_keystore.p12 ssl_keystore.pem ssl_truststore ssl_truststore.p12 ssl_truststore.pem
cldb.key
andmaprserverticket
files may have already been created. Delete these files, as the script fails if you already have these files in the directory. For example, run the following command to delete these files:cd /opt/mapr/conf /bin/rm -f cldb.key maprserverticket ssl_keystore ssl_keystore.p12 ssl_keystore.pem ssl_truststore ssl_truststore.p12 ssl_truststore.pem
-
Run the
configure.sh
script with the-secure -genkeys
-dare
options on the first CLDB node in your cluster:/opt/mapr/server/configure.sh -secure -dare -genkeys -Z <Zookeeper_node_list> -C <CLDB_node_list> -N <cluster_name>
where both<Zookeeper_node_list>
and<CLDB_node_list>
have the formhostname[:port_no][,hostname[:port_no]...] and -N <cluster_name>
specifies the cluster name. For the hostname, specify a fully-qualified domain name (FQDN) as described in Connectivity. Do not specify an alias or IP address. The-dare
option is required only if you wish to enable data at rest encryption at the cluster-level.IMPORTANT You must runThis command generates the following files in theconfigure.sh -dare -genkeys
only once on one CLDB node, since the resulting files must be copied to other nodes./opt/mapr/conf
directory:cldb.key
dare.master.key
maprserverticket
ssl_keystore
ssl_keystore.p12
ssl_keystore.pem
ssl_truststore
ssl_truststore.p12
ssl_truststore.pem
NOTE Thedare.master.key
file is generated only if data at rest encryption is enabled on the cluster.TIP A comprehensive listing of the Trust and Key Store files is at: Understanding the Key Store and Trust Store Files. -
Copy the
cldb.key
to any node with the CLDB or Zookeeper service installed, and copy thedare.master.key
to any node with the CLDB service installed.NOTE Copy thedare.master.key
file only if you are enabling data at rest encryption on the cluster. -
Verify that the files
ssl_keystore
,ssl_keystore.p12
,ssl_keystore.pem
,ssl_truststore
,ssl_truststore.p12
, andssl_truststore.pem
are owned by the user that runs cluster services. This user ismapr
by default. Also, themaprserverticket
,ssl_keystore
,ssl_keystore.p12
, andssl_keystore.pem
files must have their UNIX permission-mode bits set to400
, and thessl_truststore
,ssl_truststore.p12
, andssl_truststore.pem
files must be readable to all users. -
Copy the
maprserverticket
,ssl_keystore
,ssl_keystore.p12
,ssl_keystore.pem
,ssl_truststore
,ssl_truststore.p12
, andssl_truststore.pem
files to the/opt/mapr/conf
directory of every node in the cluster. -
Run
configure.sh
on each existing node in the cluster using the same arguments as in Step 3 but without the-genkeys
option.
The/opt/mapr/server/configure.sh -secure -dare -Z <Zookeeper_node_list> -C <CLDB_node_list> -N <cluster_name>
-secure
option indicates that security must be enabled on the node where the command is run and the-dare
option indicates that data at rest encryption must be enabled on the node and must be specified only if it was specified in Step 3.IMPORTANT You must also do this on any nodes that you add to the cluster in the future. -
Copy the
ssl_truststore
,ssl_truststore.p12
,andssl_truststore.pem
files to any client nodes outside the cluster.IMPORTANT If you runconfigure.sh -secure
on a node before you copy the necessary files to that node, the command fails. - Optionally, enable encrypted quorum ZooKeeper communication. See zoo.cfg for more information.
-
Log in as the
mapr
superuser using the maprlogin command:maprlogin password
(in this command,password
is literal text). -
If clients will connect to multiple secure clusters, merge the
ssl_truststore
files with the/opt/mapr/server/manageSSLKeys.sh
tool. See Setting Up the Client for more information on MapR clients.
Advanced Procedure
About this task
In certain situations, you may opt for variant of the basic procedure. Such situations include, but are not limited to the following:
- You are running the script on a host that is configured without a domain name.
- You have a cluster where all the machines do not have the same domain name.
- You wish to import your own custom certificates instead of the self-signed
certificates generated by the
configure.sh
utility.
Running on Hosts with no Configured Domain Name
About this task
When used without the -certdomain
argument, the
configure.sh
script discovers the domain name of the
node on which it is being executed using the hostname -d
command and then creates a 100-year self-signed certificate using the PKCS#1
v1.5 with SHA-512 hash function (SHA512withRSA) with a wildcard certificate
with the common name (CN) *.<domain>
. For
example, if hostname -d
returns the domain name
mycompany.com
, then the CN of the certificate is
*.mycompany.com
. This certificate
works for all machines within the mycompany.com
domain
and can therefore be copied to all cluster nodes as specified in Step 5
in the Basic Procedure.
Certificate generation fails if the host that you are running the
script from is configured without a domain name. To fix this, modify
your machine configuration so that hostname -d
returns a
non-empty string and then run the configure.sh
script.
Alternatively, re-run the script with the
-certdomain
option as shown in Step 3 of the Basic
Procedure:
/opt/mapr/server/configure.sh -secure -genkeys -certdomain <domain_name> -Z <Zookeeper_node_list> -C <CLDB_node_list> [ -N <cluster_name> ]
Securing Clusters with Multiple Domain Names
About this task
Generally, all machines within a cluster should belong to the same domain. In
the unusual case where you have a cluster with different machines belonging
to different domains, applications that perform hostname verification can
fail if you run the configure.sh
script (as described in Step 3 of the Basic Procedure) to generate a
single-domain wildcard certificate. In this case, you must provide your own
multi-domain wildcard certificate and import the custom certificate into the
keystore as described in Importing a Certificate Authority Signed
(CA Signed) SSL Certificate Into a MapR Cluster.
Using Custom Certificates
About this task
To import your own custom certificates into the keystore instead of using the self-signed certificates, see Importing a Certificate Authority Signed (CA Signed) SSL Certificate Into a MapR Cluster.