• Here, some of the key advantages of using splunk which will help you in understanding key features of splunk.

• Identify and resolve issues upto 70% faster.
• Reduces costly escalations by upto 90%.
• Splunk change difficult logs to visual graphs and reports resulting simplified analysis,reporting and troubleshooting

• No separate database requirements like oracle or SQL as splunk stores all data in its index
• Supports any format and any amount of data -enables centralized log management

• Simple to implement and scale
• Continually index all of your IT data in real time.
• Automatically search helpful information inserted in your data, therefore you can’t to spot yourself.
• Search your physical and virtual IT infrastructure for virtually something of interest and find results in seconds.
• Save searches and tag helpful information, to create your system smarter.
• Set up alerts to modify the observation of your system for specific continual events.
• Provide analytical reports with interactive charts, graphs, and tables.
• Share saved searches and reports with fellow Splunk users, and distribute their results to team members and project stakeholders via email.
• Design specialised, information-rich views and dashboards that work the wide-ranging desires of your enterprise.

• The application of splunk are Monitoring, Analyzes machines, security and business performance.
• With intuitive analysis features, machine learning, packaged applications and open APIs, Splunk Enterprise is a comfortable environment that scales from focused use cases to an enterprise-wide analytics backbone.

• A Splunk application is not much more than a structured set of configurations and assets help to achieve an end goal of data collection, indexing, and visualization.
• In order to make a valid Splunk application, you must include the ability to navigate. Without navigation in the application, you would be working on an add-on.
• The performance of application can be monitor vendors Dynatrace and Extrahop have developed apps for Splunk software to help the users to visualize their deep-dive application performance data in the event of all other application data like logs, events, infrastructure performance.

• Proxy logs : It’s better for C2 analysis of files, domains, downloads of DLL/EXE files.
• Anti‐virus logs : It’s good for analysis of malware, vulnerabilities of hosts, laptops, servers, monitor for suspicious file paths.
• Server Operating System logs : These logs are good for analysis of server activities such as users, runaway services, security logs.
• Firewall logs : Logs for network traffic of source/destination ip addresses, ports, protocols.
• Mail logs : Logs for inbound/outbound mail for malicious links, targeted recipients, unauthorized file out bound, data loss, bad attachments.
• Custom apps logs : Logs could be analyze for possible buffer overflow, code injection, SQL injection analyses.

• Intrusion Prevention System logs : To alert on signatures firing off, COTS signatures, threat analysis of bad network packets.
• Database logs : It’s can be capture for authorized access to critical data tables, authorized logons, op ports, admin accounts.
• Virtual Private Network(VPN) logs : Capture logs to analyze users coming into network for situational awareness, monitored foreign ip subnets, compliance monitoring of browsers/apps of connected hosts.
• Authentication logs : To monitor authorized/unauthorized users, times of day of connection, how often, logons/logoffs, BIOS analysis.
• Vulnerability Scan Data : Import data about assets, vulnerabilities, patch data, etc.
• Web Application logs : External facing logs to monitor suspicious SQL keywords, text patterns, REGEX for threats coming in through browser.
• DNS logs: To relate IP address what domain in a client level.
• DHCP logs : To monitor what systems are assign what IP address and how long, how often.

• Active Directory/Domain Controller logs : Monitor user accounts for AD admins, privilege accounts, remote access, multiple admins across the domain, new account creation, event ID’s.
• Badge Access logs : Logs to capture to correlate insider threat, situational awareness, correlate data with authentication logs.
• Router/Switch data (net-‐flow) : Capture this critical data source for APT monitoring, network monitoring, data exfiltration, flow analysis are very important data source.
• Packet Capture logs(PCAP): Very difficult data source to capture for Advanced Persistent Threats, packet analysis, deep packet inspection, malware analysis, etc.
• FW + AV : Will help detect and respond to viruses, worm propagation.
• IPS + AV + FW : Detect/alert on network based attacks such as buffer overflow, reconnaissance scans, code injection.
• PROXY : The web based/application layer is a majority attacks to monitor like: cross-site scripting, session hacking, browse redirects.
• AV + PROXY : Monitor/detect/respond to download of bad files, remote code execution…web-based attacks.
• FW + PROXY : Detect outbound data exfiltration, detect potentially misconfig fw rules.
• IPS + FW : Network packet of signature threats to be monitored.
• AD Server : All user/group modifications, deletes, updates for administrators to be monitored.
• AD + PROXY : Monitor/Detect/Alert on post compromise analysis, lateral movement.

• Splunk is a software environment to give search, analyze and event to machine-generated data collect from the websites, applications, sensors,devices etc.,It create for your IT environment and business.
• Splunk is an advanced,scalable and potent technology that system can be stored indexes and searches log files.It also search the machine-generated data to give operational intelligence.
• The below image will help you how to relate Splunk collects data.

• To report real time health condition.
• The patient’s health record and analyze patterns in the Delve deeper.
• When the patient’s health degrades to be Alarms/Alerts for both the doctor and patient.

• It work can be moved as the ‘Google’ for log files.
• Simpler terms to be searched with the use of Search Processing Language (SPL).
• If the Splunk file system to be store the data directly that means it does not require any back-end or any database
• It doesn’t against any single point of failure to be happened.

Some of the additional components that separately and collectively perform the major operations: