Roles and ResponsibilitiesBachelor's degree in Computer Science, Information Technology or Network Security.
Required Experience
Fresh Graduates
Required Skills
- SolarWinds, ServiceNow, L1 Networking
- Access Control:
- Authentication: Ensures that only authorized users can access the network. Common methods include username/password combinations, biometrics, and multi-factor authentication (MFA).
- Authorization: After authentication, systems determine what level of access the user is granted based on their role (e.g., admin, user, guest).
- Role-Based Access Control (RBAC): This system restricts system access to authorized users based on roles or groups.
- Firewall Protection:
- Firewalls are hardware or software devices used to monitor and control incoming and outgoing network traffic based on predetermined security rules.
- Types of Firewalls:
- Packet Filtering Firewalls: Inspects packets of data and decides whether to allow or block them based on defined security rules.
- Stateful Inspection Firewalls: Monitors the state of active connections and makes decisions based on both predefined rules and the state of the connection.
- Next-Generation Firewalls (NGFW): Include additional features such as deep packet inspection, intrusion detection/prevention, and application awareness.
- Intrusion Detection and Prevention Systems (IDPS):
- Intrusion Detection Systems (IDS): Monitors network traffic for suspicious activity and alerts administrators if potentially malicious activity is detected.
- Intrusion Prevention Systems (IPS): Similar to IDS, but with the added capability of actively blocking suspicious activity in real-time to prevent attacks from progressing.
- Virtual Private Network (VPN):
- A VPN is a secure connection that allows remote users to access a network over the internet in an encrypted format.
- Site-to-Site VPN: Establishes a secure link between two networks, such as a corporate office and a remote branch.
- Remote Access VPN: Provides individual users with secure access to a network from remote locations.
- Encryption:
- Encryption is the process of converting data into a coded format that is unreadable without the proper decryption key.
- SSL/TLS: Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols are used to encrypt data exchanged between web browsers and servers.
- Network Segmentation:
- Segmentation involves dividing the network into smaller, isolated segments to limit the spread of potential attacks.
- VLANs (Virtual Local Area Networks): Used to create logical divisions within a physical network.
- Antivirus and Anti-malware Solutions:
- These tools are installed on network devices to detect, prevent, and remove malicious software (malware).
- Traffic Monitoring and Analysis:
- Monitoring network traffic can help identify malicious activities.
- Network Traffic Analysis Tools: These tools examine traffic patterns and identify abnormalities.
- Patch Management:
- Keeping network devices and software up-to-date with the latest patches is crucial for protecting against known vulnerabilities.
- Security Information and Event Management (SIEM):
- SIEM solutions aggregate and analyze logs and security data from various sources across the network.
Desired Candidate ProfileTypes of Network Security Threats:
- Malware: Malicious software that infects systems to steal data, cause disruptions, or damage systems.
- Phishing Attacks: Social engineering attacks where attackers attempt to trick users into revealing sensitive information.
- Denial of Service (DoS) Attacks: Attacks aimed at disrupting the availability of network services.
- Man-in-the-Middle (MitM) Attacks: The attacker intercepts communications between two parties.
- SQL Injection: A form of attack where malicious SQL code is injected into input fields.
- Zero-Day Exploits: Attacks that target previously unknown vulnerabilities.
- Insider Threats: Security breaches originating from inside the organization.
Best Practices for Network Security:
- Regularly Update Software and Devices
- Enforce Strong Authentication
- Educate Employees
- Monitor Network Traffic
- Back Up Data
- Limit User Access
- Implement Network Segmentation
Common Tools and Technologies in Network Security:
- Firewalls
- Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS)
- Virtual Private Network (VPN) solutions
- Security Information and Event Management (SIEM) tools
- Antivirus and Anti-malware software
- Network Monitoring Tools
- Endpoint Protection Solutions
- Encryption Tools
- Two-Factor Authentication (2FA) Solutions