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Configuration steps for Syslog forwarding from F5 devices to EventLog Analyzer
- To forward system logs:
- Login into Configuration Utility.
- Navigate to System > Logs > Configuration > Remote Logging.
- Enter the remote IP. The remote IP in this case would be EventLog Analyzer server's IP address.
- Enter the remote port number. The default remote port for EventLog Analyzer is 514.
- Click on Add.
- Click on Update.
- To forward event logs. (Ex: Firewall Events, Application Security Event)
- Create management port destination
- Login to Configuration Utility.
- Navigate to System > Logs > Configuration > Log Destinations.
- Click on Create.
- Enter a name for the log destination.
- To specify the log type, click management port.
- Enter the IP address of the EventLog Analyzer server.
- Enter the listening port of the EventLog Analyzer server. The default listening port is 514.
- For protocol, select the UDP protocol.
- Click on Finish.
- Create a formatted remote syslog destination.
- Now navigate to System > Logs > Configuration > Log Destinations.
- Click on Create.
- Enter a name for the log destination.
- To specify the log type, select remote syslog.
- Under syslog settings, set the syslog format as syslog and select the forward to management Port as the syslog destination.
- Click on Finish.
- Create a log publisher to forward the logs.
- Navigate to System > Logs > Configuration > Log Publishers.
- Click on Create.
- Enter a name for the log publisher configuration.
- In the available list, click the previously configured remote syslog destination name and move it to the selected list.
- Click on Finish.
- Create a logging profile for virtual servers.
- Navigate to Security > Event Logs > Logging Profiles.
- Click on Create.
- Enter a profile name for the logging profile.
- Then enable the Network Firewall or Application Security or Both by clicking on the checkbox.
- For network firewall event logging, follow the steps below
- Under the network firewall configuration, enter the publisher. Enter the previously configured Syslog publisher.
- Under log rule matches, click Accept, Drop, and Reject. (Note: If you do not want any logs, you can disable it).
- Leave other options in default. (Note: Storage Format should be none)
- For application security event logging, follow the below steps
- Under application security configuration, select storage destination as Remote Storage.
- Select logging format as Key-Value Pairs (Splunk).
- Select the protocol as UDP or TCP.
- Enter Eventlog Analyzer server IP address and port (513/514) and click on Add.
- Then click on Create.
- Apply Logging Profile to corresponding Virtual Server
- Now navigate to Local Traffic > Virtual Servers
- Select your virtual server to which you want to apply logging profile.
- On the top, tap on the security tab and click on the policy.
- Go to Network Firewall.
- Set Enforcement: Enabled, and select your network firewall policy.
- Under log profile, enable the log profile and select the previously configured logging profile.
- Then click on Update.
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