Veja como você pode adquirir experiência em segurança de rede.

To acquire expertise in network security, start with a strong educational foundation in computer science or IT, and obtain relevant certifications such as CompTIA Security+, CISSP, CEH, and CCNA Security. Gain hands-on experience through internships and entry-level positions, and stay updated with continuous learning via online courses, workshops, and industry events. Network with professionals, develop specialized skills in areas like penetration testing and encryption, and become proficient in security tools like Wireshark and Metasploit. Additionally, practice ethical hacking, participate in Capture The Flag competitions, and enhance your analytical, problem-solving, and communication skills.

Remember two fundamentals - Start with a baby step - One thing at a time. To acquire expertise in network security, focus on: 1. Building a strong foundation in networking fundamentals (TCP/IP, DNS, etc.) 2. Learning security protocols and technologies (firewalls, VPNs, etc.) 3. Understanding threat landscapes and attack vectors 4. Gaining hands-on experience with security tools and simulations 5. Staying up-to-date with industry developments and best practices 6. Pursuing relevant certifications (CompTIA Security+, CISSP, etc.) Remember, expertise comes from continuous learning and practice!

Nobody runs without first going through crawling, then walking before running. Some children skip the crawling phase, while others may run while still crawling. What does this mean? We're human, but we're different. Each of us has our learning curve, but there's no escaping the basics. Nothing beats following the chronological evolution of technologies to create a solid foundation and understand the principles of the famous OSI model created in 70s to today's satellite internet era, with the democratization and accessibility of AI. Tip: Self-study. Not everything is learned in school, and today resources are abundant and free. Learn to search! Manufacturers, forums, blogs, free courses, etc., are great sources of knowledge.

My path to network security centered around learning, building, and troubleshooting various network security features. Studying network certifications guided me toward understanding which network security features were necessary. Network security configurations became more challenging as more advanced network certifications were acquired. Using physical network devices is valuable and logical network labs provide similar benefits. Observing network device startup, configuration, and connections provides insights leading to understanding network security features. Additionally, I recommend gaining an understanding of how media access control and internet protocols work to identify where network security measures can be applied.

Practice Ethical Hacking: 1. Learn penetration testing techniques and tools. 2. Understand common vulnerabilities (e.g., SQL injection, XSS) and how to mitigate them

Focus on core security principles such as encryption, firewalls, intrusion detection/prevention systems, and secure network design.

Acquiring expertise in network security involves a combination of theoretical knowledge, practical experience, and continuous learning. Understand the Basics in Networking Fundamentals. Understand how networks operate, including concepts like IP addresses, subnets, VLANs, and routing. Network Protocols: Get familiar with common protocols such as HTTP, HTTPS, TCP/IP, DNS, DHCP, and SSL/TLS. OSI and TCP/IP Models: Learn the OSI model layers and their functions, as well as the TCP/IP model. Set Up a Lab with Virtual Machines (VMs) to create a virtual lab environment) and Network Simulators. Do Practical Exercises by configuring a network: Set up and configure a small network, practice IP addressing, and configure basic routing.

Basics of Security Core Concepts: 1. CIA Triad: Confidentiality, Integrity, Availability. 2. Authentication vs. Authorization: Verify identity and permissions. 3. Encryption: Basics of AES, RSA. 4. Firewalls: Packet filtering, stateful inspection. Common Security Practices: 1. Password Policies: Creating and managing secure passwords. 2. Network Segmentation: Dividing a network into isolated segments. Hands-on Practice: 1. Tools: Use Wireshark for network analysis, Nmap for scanning. 2. Home Lab: Set up virtual machines with VirtualBox or VMware. Certifications: 1. CompTIA Security+: Fundamental security principles. 2. CEH (Certified Ethical Hacker): Focuses on penetration testing techniques.

Learning network security involves a combination of theoretical knowledge and practical experience. Consider online courses, certifications, reading industry publications, setting up a home lab, and participating in vulnerability research to gain expertise in this field.

Practicing Security from the lowest level to the most complex ones helps a lot in order to mitigate a threat. Getting familiar with firewalls, IDS/IPS, SSL, TLS etc. will give you a faster response to keep your company safe from threats.

Gain hands-on experience through labs, simulations, and real-world projects. Practical skills are essential for applying theoretical knowledge effectively.

There’s nothing better than continuing practice day by day in order to become more efficient. Network scanners, and penetration testing tools are really important for you to master them in order to have a safe network.

Practical Security Skills Hands-on Experience: 1. Home Lab: Set up a virtual lab using VirtualBox to simulate different environments and practice configurations 2. Network Tools: - Wireshark: Analyze network traffic - Nmap: Perform network scanning and mapping - Metasploit: Conduct penetration testing System Hardening: 1. Firewalls: Configure and manage firewalls (e.g., iptables, UFW) 2. Patch Management: Regularly update and patch systems and software Incident Response: 1. Logs Monitoring: Use tools like Splunk or ELK stack 2. Forensics: Basics of digital forensics, analyze logs and network traffic to identify threats Secure Coding: 1. Input Validation: Prevent injection attacks 2. Authentication/Authorization: Implement secure methods

To become a network security expert, earn a relevant degree, obtain key certifications like CISSP or CCNA Security, gain hands-on experience in IT or network roles, specialize in specific security technologies, stay updated on the latest in cybersecurity trends, and develop essential soft skills like communication and problem-solving.

Having certificates definitely prove and validate your knowledge. But having the certificate without any practical experience is also not ideal or helpful. Therefore having the experience to back the certificate will be get you out of tricky situations when you actually start working. Also having some vendor specific certificates such as the AWS Certified Security - Specialty will provide a lot of knowledge on how security controls within a specific vendor work so that you’re better prepared to securing networks that have these technologies running.

Certifications can help you validate your credentials in network security. However, I would refrain from going for certifications like CISSP if you are just starting out and want to do deep dive in network security. Focus on pure networking certifications first, for example, CCNA. Once your credibility is established as a networking professional you can work towards more tailored certifications like security+ and CISSP (which is much more wider than just network security)

You can’t be too prepared, always aim for constant learning and keep your knowledge up to date. Cyber threats are in constant evolution and innovations and as a cybersecurity analyst it is your job to be in constant progress and learning.

I agree , with technology evolving everyday , networking is really important. Like they say if you don’t know something… someone you know knows it! Your network is your net worth !

News and Blogs: 1. Security Blogs: Follow Krebs on Security, Threatpost, and Dark Reading. 2. News Sites: Stay updated with security news on sites like The Hacker News and SecurityWeek. Professional Communities: 1. Forums: Engage in discussions on Reddit’s r/netsec and Stack Exchange’s Information Security community. 2. LinkedIn Groups: Join cybersecurity-focused groups for networking and updates. Conferences and Webinars: 1. Events: Attend DEF CON, Black Hat, and RSA Conference. 2. Webinars: Participate in webinars from security organizations and vendors. RSS Feeds and Newsletters: 1. Subscriptions: Subscribe to security newsletters and RSS feeds for regular updates.

* Follow security news sources: Stay informed about the latest threats and vulnerabilities. * Join online communities: Connect with other security professionals to learn and share knowledge.

This point is vital. You can definitely be self taught in many aspects. However, this will lead to you making a lot of mistakes when looking at the larger picture or future proofing. Mentors have the experience to help bring you to that 30000 foot view and show you how a quick fix today could lead to a massive project tomorrow.

Remember that mentorship is a two-way street, and it’s essential to invest time and effort into building a mutually beneficial relationship with your mentor. By seeking mentorship from experienced professionals in network security, you can accelerate your learning, gain valuable insights, and advance your career in the field. How to Find a Mentor within Your Workplace? Look for experienced professionals within your organization who are willing to mentor junior colleagues. Reach out to them directly or ask HR for mentorship programs. Other sources are professional Associations and Online Communities. Benefits of Mentorship are: you have Guidance and Support, a source for Knowledge Sharing and proof, plus Networking Opportunities

Acquiring expertise in network security involves a combination of formal education, practical experience, and continuous learning. Here's a step-by-step guide to help you become proficient in network security: 1. Educational Requirement 2. Professional Certifications: Obtain industry-recognized certifications such as CompTIA Security+, Certified Information Systems Security Professional (CISSP), or Certified Ethical Hacker (CEH) to validate your skills and knowledge. 3. Practical Experience 4. Specialization 5. Continuous Learning: Stay updated with the latest trends, tools, and threats in cybersecurity. Attend workshops, webinars, and conferences, and engage with the cybersecurity community. 6. Advanced Education 7. Networking

Quando falamos de segurança, é quase impossível não falarmos de redes, até mesmo que é focado em desenvolvimento seguro, tem que ter uma palhinha em redes para saber o movimento de ida e volta de um pacote. Como dica, procure ser curioso, não se contente em fazer uma regra de bloqueio sem entender o funcionamento (TCP, UDP, SNMP, HTTP). É simples hoje em dia com os firewalls de ultima geração fazer uma regra, mas entender o como por trás os controles funciona é o segredo. SEJA CURIOSO.