Getting Data In

How do i forward to multiple indexers w/SSL

Chris_R_
Splunk Employee
Splunk Employee

I have two indexers and a (various#) number of forwarders, how can i use SSL for all traffic between these boxes?

Tags (2)
0 Karma
1 Solution

Chris_R_
Splunk Employee
Splunk Employee

Forwarding to multiple indexers via SSL encryption is entirely possible. Here's an example using a cloning configuration, in this config the SSL cert on the forwarder is signed by both indexers and we are using the common name to provide authorization.
Remember to make sure your certs are in the specified directories on both indexers and forwarders.

[tcpout]
defaultGroup = index-server1, index-server2
disabled = false

[tcpout:index-server1]
server = index1.somedomain.com:9777

[tcpout:index-server2]
server = index2.somedomain.com:9777

[tcpout-server://index-server1.somedomain.com:9997]
sslCertPath = $SPLUNK_HOME/etc/auth/fowarder_cert.pem
sslRootCAPath = $SPLUNK_HOME/etc/auth/CAcert.pem
sslVerifyServerCert = true
sslCommonNameToCheck = splunk_index.somedomain.com

[tcpout-server://index-server2.somedomain.com:9997]
sslCertPath = $SPLUNK_HOME/etc/auth/fowarder_cert.pem
sslRootCAPath = $SPLUNK_HOME/etc/auth/CAcert.pem
sslVerifyServerCert = true
sslCommonNameToCheck = splunk_index.somedomain.com

For further examples on how to setup forwarding and receiving using SSL encryption see our official documents Splunk SSL documentation

View solution in original post

Chris_R_
Splunk Employee
Splunk Employee

Forwarding to multiple indexers via SSL encryption is entirely possible. Here's an example using a cloning configuration, in this config the SSL cert on the forwarder is signed by both indexers and we are using the common name to provide authorization.
Remember to make sure your certs are in the specified directories on both indexers and forwarders.

[tcpout]
defaultGroup = index-server1, index-server2
disabled = false

[tcpout:index-server1]
server = index1.somedomain.com:9777

[tcpout:index-server2]
server = index2.somedomain.com:9777

[tcpout-server://index-server1.somedomain.com:9997]
sslCertPath = $SPLUNK_HOME/etc/auth/fowarder_cert.pem
sslRootCAPath = $SPLUNK_HOME/etc/auth/CAcert.pem
sslVerifyServerCert = true
sslCommonNameToCheck = splunk_index.somedomain.com

[tcpout-server://index-server2.somedomain.com:9997]
sslCertPath = $SPLUNK_HOME/etc/auth/fowarder_cert.pem
sslRootCAPath = $SPLUNK_HOME/etc/auth/CAcert.pem
sslVerifyServerCert = true
sslCommonNameToCheck = splunk_index.somedomain.com

For further examples on how to setup forwarding and receiving using SSL encryption see our official documents Splunk SSL documentation

hexx
Splunk Employee
Splunk Employee

Information about setting up SSL forwarding with host authentication and self-signed certificates can be found here : http://answers.splunk.com/questions/7164/how-do-i-set-up-ssl-forwarding-with-new-self-signed-certifi...

0 Karma
Get Updates on the Splunk Community!

Splunk Mobile: Your Brand-New Home Screen

Meet Your New Mobile Hub  Hello Splunk Community!  Staying connected to your data—no matter where you are—is ...

Introducing Value Insights (Beta): Understand the Business Impact your organization ...

Real progress on your strategic priorities starts with knowing the business outcomes your teams are delivering ...

Enterprise Security (ES) Essentials 8.3 is Now GA — Smarter Detections, Faster ...

As of today, Enterprise Security (ES) Essentials 8.3 is now generally available, helping SOC teams simplify ...