The world today is interconnected in a complex network. There is a greater need to keep these networks safe. Cybercrime has increased many times lately. Internet users need to scan and strengthen their networks regularly. Testing identifies security gaps in systems where cybercriminals might enter through.
Organizations use testing methods like penetration and vulnerability scanning. Platforms like Snort, Metasploit, and Nessus help do these tests. Using these tools and techniques helps organizations to keep their data safe. It helps keep their networks running smoothly while observing compliance rules.
Why it is necessary to test network security
Organizations test network security to check the health of their computer systems. The tests scan the entire company’s network to ensure it has no loopholes for hackers. These tests are necessary for keeping an organization’s digital workspace safe. The tests ensure the entire system is working as expected without security gaps. Companies do network security tests for the following reasons and more.
The smooth running of networks depends on the various APIs and software connected to them. Software code plays a critical role in application capabilities. It forms the software structure and responds to instructions relevant to the app. Code testing helps identify bugs and other defects. Testers use a variety of methods to assess the strength of a code. SAST static code analysis is a popular method used for this goal. Developers and IT experts should know what does SAST stand for. SAST means static application setting testing. SAST identifies code vulnerabilities during development and maintenance works. During development, SAST ensures the code is secure and strong before launching.
● Organizations store a lot of data in their networks nowadays. Network security tests ensure this data is safe and is not tampered with by unauthorized people.
● Network testing is done to check the health of the computer system. It finds weaknesses in the system where cybercriminals could go through.
● Computer system breaches are costly and affect the smooth running of businesses. Testing ensures the system runs well. The company saves losses that breaches could cause.
● Network security scanning helps organizations to remain compliant with existing rules.
Network security tests commonly conducted by organizations
Organizations conduct a variety of network security tests. Each test scans different components of the computer system. Regular testing benefits organizations with secure systems. The types of tests companies conduct include the following.
Security information and event management (SIEM)
SIEM is a type of testing that scans multiple data sources within a system. This scanning provides real-time security monitoring to organizations. It allows automated actions when the system detects threats. Companies use a variety of SIEM testing tools for this goal.
For example, IBM QRadar automatically detects and responds to threats. Splunk goes deeper into the system, searching, monitoring, and analyzing data. It generates reports for the system’s health. ArcSight uses intelligent threat scanning across systems. It detects behavior changes in users and warns threat hunters to take action.
Vulnerability scanning
The goal of vulnerability scanning is to identify weaknesses within a network. It tests the computer system for weaknesses like outdated apps and open ports. It checks insecure system settings, dangerous apps, and more. Tools like QualysGuard scans exploitable vulnerabilities. It scans every networked asset like workstations and servers.
A tool like Nessus scans the security of remotely connected devices and systems. It allows a variety of customizations to conduct personalized breach assessments. It scans misconfigured networks, insecure software, and malicious activities. OpenVAS is another tool used for vulnerability scanning. It tests authentication vulnerabilities and high-level website threats. It also tests vulnerable ports and weak software frameworks.
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Network intrusion detection and prevention systems (IDPS)
Network systems often experience different types of intrusions. A company invests in intrusion detection and prevention. An intrusion detection system sends automatic notifications once it detects potential attacks. An intrusion prevention system limits or stops suspected activities in a system. These two activities ensure the system remains secure.
Network security testing tools like Zeek and Snort detect and prevent intrusion. Zeek analyzes anomalies within network systems. It scans network signatures, HTTP, DNS, and FTP. It uses C++ language which allows high-level system analysis. Snort scans all traffic across a network. It identifies anomalies within the system and prevents intrusion. Suricata scans logging certificates, files, and HTTP requests. It is a powerful intrusion and prevention software.
Password cracking
Password cracking tests the strengths or weaknesses of passwords. This testing scans every password stored in a network. It identifies which passwords are easy to guess and steal. This helps users to change their login data and create stronger passwords. Password cracking tools like Cain and Abel and John the Ripper help with this scanning.
Cain and Abel find and crack all stored passwords. It can be used to recover lost logins. It manages and helps create stronger login information. John the Ripper scans weak passwords and helps create stronger ones. Hashcat is one of the most powerful cracking tools. It can scan a large number of passwords and generate a report for each.
Penetration testing
Penetration testing is a well-planned attack authorized by an organization. Organizations allow IT experts or authorized hackers to do this type of hacking. Its goal is to test all the weak points within the system. The ethical hackers engaged might not know anything about the system. They may have some knowledge or know everything about the network.
The network security testing tools for this work include Wireshark and Metasploit. Wireshark scans communication systems, and software, and troubleshoots networks. It generates real-time reports on network traffic. This tool ensures smooth operations and safety in connected networks. Metasploit penetrates networks to identify weaknesses.
It tests the strength of all defenses and their risks. It also tests patch installations to ensure the entire system and software are strong. Burp Suite penetrates and tests web applications in networks. Its graphical and integrated tools help with mapping and system analysis. It has powerful automation capabilities that test systems day and night.
Best practices for network security testing
Network security testing best practices ensure the scanning is done effectively. Proper procedures help organizations get accurate results for the most effective responses. Organizations should practice the following.
Use a variety of testing tools to identify different problems in their systems. They should do the tests regularly because new issues may come any time. An organization may lack the expertise or tools required for testing. It is okay to get support from third-party providers and testing experts.
Ensure every component of the network is tested. These should include software, devices, and configurations. Have a solution to fix issues in real-time. Delays in response could make the situation worse. Learn the changing trends and stay informed of the latest developments.
Conclusion
Network security testing helps identify problems in computer systems and networks. The testing identifies misconfigured software and systems. It identifies insecure security protocols and other vulnerabilities. Various network security testing tools help organizations achieve these goals. They provide different testing methods and vulnerability fixes. Regular testing and following the best practices are important for every organization.
Andrej Fedek is the creator and the one-person owner of two blogs: InterCool Studio and CareersMomentum. As an experienced marketer, he is driven by turning leads into customers with White Hat SEO techniques. Besides being a boss, he is a real team player with a great sense of equality.