Configure LogRhythm DX

This section explains how to configure the LogRhythm DX (Data Indexer) to run in FIPS mode and communicate with the LogRhythm DPAWC machine using FIPs-approved algorithms.

Download and Install the LogRhythm FIPS Package

1. Download the LogRhythm FIPS package (lrdx_fips.zip), available on the LogRhythm Community.

   

   The package consists of several applications that are required for running the LogRhythm in FIPS mode.

2. Create the directory /usr/local/logrhythm/LogRhythmFIPS (with no space between LogRhythm and FIPS).
3. Unzip the contents of lrdx_fips.zip into that directory.
   The package contains:
   
   • LogRhythm stunnel application and configuration files – stunnel and lrdx_stunnel.conf.
   • LogRhythm FIPS SIT application and .hsh file – lrsitapp and dxsvcs.hsh
   • OpenSSL 1.0.2u with FIPS Module 2.0.16 - libcrypto.so.1.0.0 and libssl.so.1.0.0.  Used by stunnel and lrsitapp

4. Make the lrsitapp and OpenSSL libraries executable:

   CODE

   sudo chmod a+x /usr/local/logrhythm/LogRhythmFIPS/lrsitapp

   CODE

   sudo chmod a+x libcrypto.so.1.0.0

   CODE

   sudo chmod a+x libssl.so.1.0.0

   CODE

   sudo chmod a+x libnsl.so.1

Configure the Stunnel Solution for DPAWC Communications

The LogRhythm services use stunnel to encrypt the DX/DPAWC communications using FIPS-approved algorithms.

1. Edit the stunnel configuration file /usr/local/logrhythm/LogRhythmFIPS/lrdx_stunnel.conf:
   
   • Change all instances of LR_DPAWC_IPADDRESS to the IP address of the LR DPAWC machine.
   • Change all instances of LR_DX_IPADDRESS to the IP address of the LR DX machine.
2. Create the stunnel client and server certificates using your organization's Certificate Authority or the Red Hat 7 system's OpenSSL application:
   
   • Copy the lr_stunnel.pem file to /usr/local/logrhythm/LogRhythmFIPS/lr_stunnel.pem.
3. Configure iptables for SQL Server JDBC clients to use stunnel (bulldozer and carpenter):
   

   • Configure iptables for the SQL Server client connection:

     CODE

     iptables -t nat -A OUTPUT -p tcp --dport 1433 -j DNAT --to-destination LR_DX_IPADDRESS:14330

4. Set the library path to the provided OpenSSL shared libraries:

   CODE

   sudo cp /usr/local/logrhythm/LogRhythmFIPS/libcrypto.so.1.0.0 /lib64/libcrypto.so.1.0.0

   CODE

   sudo cp /usr/local/logrhythm/LogRhythmFIPS/libssl.so.1.0.0 /lib64/libssl.so.1.0.0

   CODE

   sudo cp /usr/local/logrhythm/LogRhythmFIPS/libnsl.so.1 /lib64/libnsl.so.1

   
   

5. Start stunnel:

   CODE

   sudo /usr/local/logrhythm/LogRhythmFIPS/stunnel 
   /usr/local/logrhythm/LogRhythmFIPS/lrdx_stunnel.conf

   

   You must manually start stunnel each time the machine restarts.

Configure the LogRhythm API Gateway to Use the Stunnel Solution

Configuring the LogRhythm API Gateway involves setting the following system environment variables for the LogRhythm Service Registry to use:

To set the environment variables:

1. Create a fips_config environment variable file containing the ENV variables using the following command (replace the 10.5.0.147 below with the DX IP address):

   CODE

   IP=10.4.0.157;printf "FIPS_GATEWAY_ENABLED=true\nFIPS_GATEWAY_IP=${IP}\nFIPS_GATEWAY_PORT=8503\n" > /tmp/fips_config
   sudo mv /tmp/fips_config /usr/local/logrhythm/env/fips_config

2. Set permissions:

   CODE

   sudo chown persistent:persistent /usr/local/logrhythm/env/fips_config

3. Verify the file was created:

   CODE

   sudo cat /usr/local/logrhythm/env/fips_config

4. Update the LogRhythmAPIGateway system service config to use the new fips_config environment file:

   CODE

   sudo vi /usr/lib/systemd/system/LogRhythmAPIGateway.service

5. Add the following line to the bottom of the [Service] section (just below the "KillSignal=SIGINT" line):

   EnvironmentFile=/usr/local/logrhythm/env/fips_config

6. Create the firewall rule for the incoming stunnel connection to API Gateway. (The first command will add an immediate rule, the second will set it as permanent that will be set after a restart):

   CODE

   sudo firewall-cmd --add-port=8502/tcp --zone=internal

   CODE

   sudo firewall-cmd --add-port=8502/tcp --zone=internal --permanent

7. Apply and reload the LogRhythmAPIGateway service changes:

   CODE

   sudo systemctl daemon-reload

   CODE

   sudo systemctl restart LogRhythmAPIGateway

8. Restart all the LogRhythm DX services.

   

   Each LogRhythm service will indicate it is operating in FIPS-approved mode in its respective application log.