Step 5: Restart Knox, you should see the below
highlighted lines in your knox logs
[~]$ tail –f /var/log/knox/gateway.log
INFO hadoop.gateway (JettySSLService.java:init(106)) - Keystore for the gateway instance found - no need to create one.
INFO hadoop.gateway (JettySSLService.java:logAndValidateCertificate(128)) - The Gateway SSL
certificate is issued to hostname: XXXXXXXXXXXX.
hadoop.gateway (JettySSLService.java:logAndValidateCertificate(131)) - The Gateway SSL
certificate is valid between: 5/3/16 7:00 PM and 5/4/19 6:59 PM.
INFO hadoop.gateway (GatewayServer.java:startGateway(219)) - Starting gateway...
INFO hadoop.gateway (GatewayServer.java:start(311)) - Loading topologies from directory:
/usr/hdp/2.4.0.0-169/knox/bin/../conf/topologies
INFO hadoop.gateway (GatewayServer.java:handleCreateDeployment(450)) - Loading topology admin from /usr/hdp/2.4.0.0-169/knox/bin/../data/deployments/admin.war.152cadc1518
INFO hadoop.gateway (GatewayServer.java:handleCreateDeployment(450)) - Loading topology default from /usr/hdp/2.4.0.0-169/knox/bin/../data/deployments/default.war.154819e2a38
INFO hadoop.gateway (GatewayServer.java:start(315)) - Monitoring topologies in directory:
/usr/hdp/2.4.0.0-169/knox/bin/../conf/topologies
INFO hadoop.gateway (GatewayServer.java:startGateway(232)) - Started gateway on port 8,443