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- The Art of Investigation (Defense SOC Analyst): https://lnkd.in/gFd8x57P
- Data and Tools for Defense Analysts: https://lnkd.in/gGVEYgRr
- Developing SOAR Applications: https://lnkd.in/g_WqDjT8
- Scheduling Reports & Alerts: https://lnkd.in/gJa9Bsbe
- Security Operations and Defense Analyst: https://lnkd.in/gKWFq6pn
- to Cybersecurity Awareness: https://lnkd.in/gXFUYwrN
- to Enterprise Security: https://lnkd.in/gDhScUjz
- Visualizations: https://lnkd.in/g2GSfJGj
- The Cybersecurity Landscape: https://lnkd.in/g7TPZnHS
- Understanding Threats and Attacks: https://lnkd.in/gjzjpkbH
Practice Verified Codes and Commands
Splunk Commands for Beginners
1. Searching Logs:
[splunk]
index=main “error”
[/splunk]
This command searches for logs containing the word “error” in the main index.
2. Filtering by Time Range:
[splunk]
index=main earliest=-24h latest=now
[/splunk]
Retrieves logs from the last 24 hours.
3. Creating Alerts:
[splunk]
index=main “failed login” | stats count by user
[/splunk]
This query counts failed login attempts by user.
4. Visualizing Data:
[splunk]
index=main sourcetype=access_combined | timechart count by status
[/splunk]
Creates a time-based chart of HTTP status codes.
5. Extracting Fields:
[splunk]
index=main | rex field=_raw “user=(?
[/splunk]
Extracts the “user” field from raw logs.
Linux Commands for Cybersecurity
1. Network Scanning with Nmap:
nmap -sP 192.168.1.0/24
Scans the network for active devices.
2. Monitoring Network Traffic:
tcpdump -i eth0 -w capture.pcap
Captures network traffic on interface `eth0`.
3. Checking Open Ports:
netstat -tuln
Lists all open ports on the system.
4. File Integrity Check:
sha256sum /path/to/file
Generates a SHA-256 hash for file integrity verification.
5. Log Analysis with Grep:
grep "Failed password" /var/log/auth.log
Searches for failed login attempts in the auth log.
What Undercode Says
Cybersecurity is a critical field that requires continuous learning and hands-on practice. The Splunk courses listed above provide an excellent opportunity to gain expertise in SIEM tools, which are essential for monitoring and defending modern IT infrastructures. By mastering Splunk, you can efficiently analyze logs, detect threats, and respond to incidents in real-time.
In addition to Splunk, Linux commands like nmap, tcpdump, and `grep` are indispensable for cybersecurity professionals. These tools allow you to scan networks, monitor traffic, and analyze logs, which are fundamental tasks in securing systems.
For those new to cybersecurity, start with basic commands and gradually move to advanced techniques. Practice is key—set up a lab environment using virtual machines and experiment with different tools and scenarios.
Remember, cybersecurity is not just about tools; it’s about understanding the landscape, identifying vulnerabilities, and implementing robust defenses. Stay updated with the latest threats and trends, and always be proactive in securing your systems.
For further reading, explore these resources:
By combining theoretical knowledge with practical skills, you can build a strong foundation in cybersecurity and advance your career in this ever-evolving field.
References:
initially reported by: https://www.linkedin.com/posts/ouardi-mohamed-hamdi_share-someone-needs-it-free-cybersecurity-activity-7301546149897756672-WWIB – Hackers Feeds
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