3/29/2023 0 Comments Splunk logsSplunk commands, along with field extractions, can be used to transform the raw data into charts, graphs, and tables. The search results are returned in an unmodified (i.e., raw) format. Splunk Enterprise provides a web interface that can be used to search and analyze the data that is collected. An example configuration could send log data to a Splunk server, using a custom filter and the UDP transmission protocol. ICS also can send log data directly to a Syslog server. This feature is important as it makes it easier to extract fields from the raw log data once it is sent to the Splunk server datastore. ICS utilizes custom filters for formatting log output.The ICS architecture provides a layered system of access controls, ensuring that internal resources are protected from unauthorized access.Its ability to customize the format of log output, along with the ability to send the logs to a Syslog server, are important features for the advanced analysis capabilities presented. ICS (formerly Pulse Connect Secure) is a platform that runs on the Ivanti SSL VPN appliance and provides an architecture for secure access to and protection of network resources. Splunk searches are run against this indexed, semi-structured data. For the advanced data analysis, regular expressions are used for field extraction, which is the process for giving structure to the unstructured logs sent to Splunk. Once received by the Splunk server and added to the Splunk Enterprise Datastore, the log data is indexed so that it can be analyzed.For the advanced data analysis presented in Research Details, the Syslog method is used to send data from ICS to the Splunk server. Splunk Enterprise can serve as a Syslog server, allowing a device or service to send data directly to the Splunk server datastore using User Datagram Protocol (UDP) or Transmission Control Protocol (TCP) on port 514. Syslog is an industry standard for sending and receiving data and was developed as part of the Sendmail project in the 1980s.It is the most common means of sending data to a Splunk server. The Splunk Universal Forwarder is a special version of Splunk Enterprise that runs as a process or service on the host and sends data to a Splunk Enterprise Server.Splunk can collect data from a host either through the Splunk Universal Forwarder or through the Syslog Configuration. Splunk Enterprise is a platform for collecting, indexing, and analyzing enterprise data. The advanced data analysis includes Splunk search pipelines that provide the following information: This is an approach for using Splunk Enterprise search capabilities to perform advanced data analysis of ICS logs. Ivanti Connect SecureĀ© (ICS) is a market-leading platform powered by the Ivanti Secure Socket Layer Virtual Private Network (SSL VPN) appliance, providing an architecture for secure access to and protection of network resources. SplunkĀ® Enterprise is an industry leading tool that allows analysis of log data, which can enhance troubleshooting capability, improve system performance, and improve the security posture of an IT system. Analyzing the logs of even the smallest Information Technology (IT) system can be a challenge, considering that they can generate millions of lines of log data in a very short time.
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