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Best Network Security Tools

Application security, information security, network security, disaster recovery, operational security, and other areas of cybersecurity are required to protect against multiple cyber threats such as ransomware, malware, and phishing. Thus, when it comes to the protection of sensitive and private data held by enterprises and individuals, cyber security solutions play a critical role.

The terms "network security" and "security tools" refer to a variety of equipment, methods, and procedures. It is a set of strategies used to defend the system, accessibility, applications, confidentiality, data, and network against cyber-attacks in its most basic form. To avoid unauthorized data access, identify theft, and stay protected from cyber-attacks, network security is a must-have skill. Only a few types of network security exist information security, application security, cybersecurity, operational security, disaster recovery, and so on.

In this article, we are going to give a list of the Best Network Security Tools that every company or individual can utilize to protect their networks.

1. Syxsense Manage

Syxsense Manage provides visibility and management of all endpoints both inside and outside the network, with support for all major operating systems and endpoints. With just a few mouse clicks, you can take care of all of your unpatched vulnerabilities thanks to Syxsense.

Some of the main features of Syxsense Manage are listed below:

  • Patch It All: The cloud-hosted system consolidates desktops, laptops, and servers into a single console that can be accessed from anywhere in the world. For Windows, Mac, and Linux platforms, you can see and fix all endpoint vulnerabilities within and outside your network.
  • Verification of Adherence: Make a record of your security and patching successes. You can set up automatic delivery or export of reports such as Security Risk Assessment, Most Vulnerable Devices, and Tasks Summary. HIPAA, SOX, and PCI compliance are all made possible by comprehensive reporting.
  • Feature Updates: Support for older Windows 10 versions is being phased out by Microsoft. Patches can be rolled back if you don't have the ability to deploy Feature Updates, leaving your devices open to attack. All of your Windows 10 versions can be seen in one place, making it easy to see which ones need to be upgraded right now.
  • Device Health: Prioritize patching based on your exposure to risk when running a Device Health Scan. See if any vulnerabilities are being exploited and which patches have been released, along with their severity. Prioritize the devices that represent the greatest risk to your organization, and focus on those first.
  • Deployment Automation: Definable patching windows allow you to protect the productivity of your workforce by defining the start and end timings of device patching. Microsoft's most recent Patch Tuesday release, all critical severity Linux patches, or only third-party updates can be scheduled to be deployed on a recurrent basis.
  • Third-Party Assistance: Be aware of new dangers and fixes for popular third-party programs like Adobe, Java, and Google Chrome. Syxsense makes it easy to check for hotfixes, bug fixes, and other vendor-issued software changes.

2. SolarWinds Security Event Manager

SolarWinds (NYSE:SWI) is a major provider of IT management software that is simple, powerful, and secure. Its solutions aim to empower enterprises around the world to accelerate business transformation in today's hybrid IT environments, regardless of their kind, size, or complexity. Security Event Manager (SEM) from SolarWinds allows for unified compliance audits and reporting across a complete company infrastructure. Advanced automation automates the gathering and analysis of system logs and security events, freeing up internal resources while assisting business owners in meeting tight compliance reporting standards.

Security Event Manager has hundreds of pre-built connectors for gathering logs from diverse sources, parsing their data, and converting it to a commonly readable format, allowing you and your team to easily examine potential vulnerabilities, prepare for audits, and store logs in one central area.

Security Event Manager provides visualizations, out-of-the-box filters, and simple, responsive text-based searching for both live and historical events to help you quickly find the logs you need. You may save, load, and schedule your most frequently used searches with planned search.

SIEM (security information and event management) is a solution that helps with threat detection and security incident response by collecting and analyzing security events in real-time from a number of events and contextual data sources. The examination of historical data from these sources also aids compliance reporting and incident investigation. SIEM technology's key characteristics include a broad range of event collection and the ability to correlate and analyze events from several sources. For the past 20 years, SIEM tools have been commercially available. The primary goal of these technologies was to help business owners reduce the "false positives" that plagued old-style intrusion detection systems (IDS) in the late 1990s. Only major corporations could afford SIEM systems back then, and these companies often had substantial IT and security teams as well as a 24/7 Security Operations Center (SOC).

What are the main features of SolarWinds SIEM? Here is the list.

  • Log collecting and normalization in one location
  • Threat detection and response that is automated
  • Tools for reporting on compliance that is integrated
  • The dashboard and user interface are simple to use
  • File integrity monitoring is built-in
  • Licensing is simple and inexpensive.

3. ManageEngine Vulnerability Manager Plus

Many companies are vulnerable to cyber attacks due to a lack of awareness and the lack of a centralized approach to facilitate cyber-hygiene. Businesses must develop a strategic approach to prioritizing and controlling vulnerabilities because not all vulnerabilities are created equal.

ManageEngine Vulnerability Manager Plus is a vulnerability management program for businesses that prioritize vulnerabilities and includes patch management. It's a strategic security solution that provides full visibility, assessment, and remediation of threats and vulnerabilities across all of your IT assets, such as servers, PCs, laptops, virtual machines, DMZ servers, and roaming devices, from a single console.

In what ways can Manage Engine Vulnerability Manager Plus strengthen your network's security?

Vulnerability analysis

  • How Vulnerability Manager Plus strengthens your network's security posture? Determine the priority, urgency, and effect of vulnerabilities by looking at their contexts, such as CVSS and severity scores.
  • Keep an eye on whether the exploit code for a vulnerability has been made public.
  • Keep track of how long a security flaw has been present in your network.
  • Filter vulnerabilities depending on their severity and whether or not patches are available.
  • Gather recommendations on high-profile vulnerabilities based on the risk indicators listed above.
  • Use a dedicated tab to keep track of publicly published and zero-day vulnerabilities, and use workarounds to mitigate them until patches are released.
  • Isolate and discover vulnerabilities in essential assets, such as databases and web servers, which store sensitive data and perform critical business functions.

Automated patch management

  • Correlate vulnerability intelligence and patch management automatically.
  • Patching for Windows, macOS, Linux, and over 300 third-party apps can be done automatically.
  • For a hassle-free deployment, customize deployment policies.
  • Before applying fixes to production computers, they must be tested and approved.
  • Decline patches to specific groups

Web server hardening

  • Keep an eye out for old software that has reached or is about to reach the end of its useful life.
  • Obtain real-time information about potentially dangerous peer-to-peer software and remote sharing tools, and delete them with a single click.
  • Detect instances when a port has been activated by malicious executables by keeping a constant eye on the active ports in your computers.

Compliance with CIS benchmarks

  • Over 75 CIS benchmarks are audited and maintained with this tool.
  • Automate multiple asset audits against multiple CIS benchmarks at the same time.
  • For each violation, get comprehensive remedies.

Management of security configurations

  • Identify and correct misconfigurations in operating systems, programs, and browsers.
  • Examine the status of your firewalls, antivirus, and BitLocker.
  • By imposing complicated passwords, account lockout, and secure login policies, you can avoid brute-force attacks.
  • Make sure that memory protection features like Structured Exception Handling Overwrite Protection, Data Execution Prevention, and Address Space Layout Randomization are turned on.
  • Put an end to legacy protocols that have more hazards than benefits.
  • To limit your attack surface, manage sharing permissions, change user account controls, and disable legacy protocols.
  • Review crucial deployment warnings to safely change security configurations without disrupting corporate operations.

Hardening the webserver

  • Monitor your web servers for default and unsafe setups on a regular basis.
  • Analyze web server misconfigurations and receive security suggestions based on the situation.
  • To secure communication between clients and servers, make sure SSL certificates are installed and HTTPS is enabled.
  • To prevent unwanted access, check whether the server's root directory permissions are restricted.

4. Argus

Argus is the first data network flow system, invented by Carter Bullard at Georgia Tech in the early 1980s and adapted for cybersecurity incident response at Carnegie Mellon's Software Engineering Institute's first Computer Emergency Response Team (CERT) in the late 1980s. Since then, network flow technology has evolved into a crucial component of modern networking and cybersecurity, with Argus playing a significant role in this progress.

Argus is a network auditing solution that provides an engine for auditing all network traffic, not just IP.

It was inspired by the Public Switched Telephone Networks (PSTN) Call Detail Record (CDR) and is designed to track all network activities in a way that supports all types of network management functions, including security monitoring. Auditing is a critical component of NIST's security controls.

The Argus Project is an open-source initiative focusing on demonstrating proofs of concept for all aspects of large-scale network awareness obtained from network traffic data.

Argus aspires to be at the "bleeding edge" of network flow technology, rapidly analyzing packets on the wire or in captures to produce the most comprehensive network flow data possible.

The Argus system aims to handle a broad range of network flow data processing concerns, including scale, performance, application, privacy, and value.

Although Argus is a proof of concept project, it has been operationally deployed in the US Government, the US Department of Defense, the Department of Homeland Security, the Department of Energy, large enterprises, and university networks worldwide.

It is widely used in network research, enabling a variety of projects ranging from network performance analysis to situational awareness, cyber security, machine learning, and even chip design for Software Defined Networks (SDNs).

The Argus architecture is intended to facilitate network auditing on a modest to very large scale.

Real-time data contains a wealth of information that can be kept in files for later processing or cobbled together to offer real-time network data streams for simple network awareness, large-scale distributed visibility, and even active cyber protection.

Argus is a free and open-source project licensed under the GNU General Public License version 2. In order to ensure that everyone may use Argus, if the GPL is not to your satisfaction, please contact Argus for information on other licensing alternatives.

Argus is a network auditing system that monitors network traffic. It is made up of two packages in total. A packet processing network flow sensor, argus, that generates Argus flow data, and a collection of argus data processing programs, called argus-clients, that can be coupled to build high-performance data flow pipelines for processing network data in real-time, or uncoupled to support large data science analytics, such as statistical analysis and machine learning, are the core components of the argus system.

A simple report, such as billing or resource use reports, can be generated on an endpoint basis using the records that have been collected and processed. When reporting on network function degradation or verifying SLAs, Argus performance measurements can be used to provide information. Because of the ability to annotate network flow data with geolocation information, reports can be organized by nation, state, and AS number.

5. Splunk

Splunk is a sophisticated, scalable, and effective tool for indexing and searching system log data. It examines data generated by machines in order to give operational intelligence. The primary advantage of utilizing Splunk is that it does not require a database to store its data, as it makes significant use of indexes.

Splunk is a web-based application that is primarily used for searching, monitoring, and analyzing machine-generated Big Data. Splunk collects, indexes, and correlates live data into a searchable container from which it generates graphs, reports, alerts, dashboards, and visualizations. Its objective is to provide machine-generated data that is accessible throughout an organization and is capable of recognizing data patterns, producing metrics, diagnosing problems, and providing insight into business operations objectives. Splunk is a tool that is used to manage applications, secure them, and ensure compliance, as well as do business and web analytics.

Finding a specific piece of data among a large collection of complicated data is simple with the aid of Splunk software. As you may be aware, determining which configuration is presently operating is difficult in the log files. To assist with this, Splunk software includes a tool that enables users to identify configuration file issues and view the currently used settings.

After discussing 'What is Splunk?', the question 'Why Splunk?' arises. Splunk is a digital platform that enables easy access to machine-generated data that is both helpful and beneficial to everyone. Managing a massive volume of data is one of the most difficult issues, given the fast expansion of the information technology sector and its machinery. Splunk plays a critical part in resolving this dilemma.

According to an IT Central Station user, some of Splunk's most notable characteristics include 'its speed, scalability, and most crucially, its creative approach to data collection and presentation.' On the other side, the same user notes that setting up and adding new sources in Splunk might be challenging.

Several advantages of utilizing Splunk include the following:

  • Splunk generates analytical reports with interactive charts, graphs, and tables and allows users to share them.
  • Splunk is scalable and simple to deploy.
  • Splunk can automatically detect relevant information included inside your data, so you don't have to.
  • It assists in preserving your searches and tags that are identified as critical information, so making your system smarter.

6. Aircrack

Aircrack-ng is a comprehensive set of tools for assessing the security of WiFi networks.

It focuses on several aspects of WiFi security, including the following:

  • Monitoring: Data collection via packet capture and export to text files for further processing by third-party tools
  • Attacking: Packet injection attacks include replay attacks, deauthentication, and the creation of bogus access points.
  • Testing: Verifying the capabilities of WiFi cards and drivers (capture and injection)
  • WEP and WPA PSK Cracking (WPA 1 and 2)

All tools are command-line-based, which enables extensive scripting. Numerous graphical user interfaces have incorporated this feature. It is largely Linux-based, but also supports Windows, macOS, FreeBSD, OpenBSD, NetBSD, Solaris, and even eComStation 2.

AirCrack-ng is the most well-known utility for cracking WEP and WPA-PSK encryption in Windows. As a result, the penetration tester's knowledge of AirCrack and accompanying tools is critical. WEP is decrypted using AirCrack-ng by statistical mathematical analysis, whereas WPA PSK and WPA2 are decrypted via a brute-force attack against known passwords.

To install AirCrack-ng on Windows,

  1. Download the Aircrack-ng 1.6 package, which includes AirCrack-ng and its accompanying programs. The compressed file is named aircrack-ng-[version]
  2. Create a directory named C:aircrack-[version]-win on your hard drive
  3. Extract the archived files into it. To run AirCrack-ng successfully, you must capture some packets, which must be captured over the wireless network card. You must load the necessary drivers for your PC card; instructions for various cards and drivers are available at AirCrack-ng is compatible with a wide variety of wireless cards that use the Atheros, Hermes, or Prism chipsets. After installing the drivers, begin collecting packets using the supplied capture tool airodump-ng, which captures and assembles the required packets. Once a significant number of packets has been collected, the AirCrack-ng application can be used to decrypt the data.

7. Wireshark

Few programs are as useful to IT professionals as Wireshark, the de facto standard for network packet capture. Wireshark enables you to capture and visualize network packets at a fine level. After decompressing these packets, you can use them for real-time or offline analysis. This program enables you to magnify your network traffic and then filter and drill down into it, assisting with network analysis and, ultimately, network security.

Wireshark is a network protocol analyzer or an application that captures packets passing over a network connection, such as one connecting your computer to your home office or the internet. In a typical Ethernet network, the term "packet" refers to a distinct unit of data.

Wireshark is the world's most popular packet sniffer. Wireshark, like any other packet sniffer, performs three functions:

  1. Wireshark listens in real-time to a network connection and then captures whole streams of traffic - potentially tens of thousands of packets at a time.
  2. Through the use of filters, Wireshark is capable of slicing and dicing all of this random live data. By employing a filter, you can retrieve only the data that you require.
  3. Wireshark, like any other decent packet sniffer, enables you to dive right into the heart of a network packet. Additionally, it enables the visualization of full conversations and network streams.

Wireshark is useful for a variety of tasks, including diagnosing network performance issues. Wireshark is frequently used by cybersecurity professionals to trace connections, analyze the contents of suspicious network transactions, and spot surges in network traffic. It's a critical component of any IT professional's toolset - and preferably, the IT professional possesses the necessary skills to utilize it.

8. Tcpdump

Tcpdump is a command-line utility for capturing and analyzing network traffic passing through your system. It is frequently used to assist in troubleshooting network issues and as a security tool.

Tcpdump is a robust and adaptable tool that comes with a plethora of options and filters. It may be used in a variety of situations. Because it is a command-line tool, it is excellent for use on distant servers or devices without a graphical user interface in order to collect data for subsequent analysis. Additionally, it can be run in the background or as a scheduled job via technologies such as cron.

It is included with the majority of Linux/Unix-based operating systems. Additionally, tcpdump allows us to save the recorded packets to a file for later study. It stores the file in the pcap format, which may be inspected using the tcpdump command or an open-source graphical user interface (GUI) program called Wireshark (Network Protocol Analyzer), which can read tcpdump pcap format files.

This software is based on the libpcap interface, a system-independent portable interface for capturing network datagrams at the user level. Contrary to its name, tcpdump may also capture non-TCP communications, such as UDP and ICMP. One of the key advantages of this technology is its widespread availability, which has made it the de facto standard format for collected network traffic. The tcpdump tool is included with a large number of BSD, Linux, and Mac OS X distributions, and a Windows version is available. Due to its extensive history, there are also a plethora of references available on the Internet and in text form for those interested in learning the tool.

9. Nagios

Nagios is the open-source network monitoring tool of choice for the world's top enterprises. Nagios monitors the network for issues such as overloaded data cables or network connections, as well as routers, switches, and other network devices. Nagios is easily capable of monitoring the availability, uptime, and reaction time of each node on the network and presenting the findings in a number of visual representations and reports.

Nagios is widely regarded as the industry's best server monitoring software. Server monitoring is simplified with Nagios because it supports both agent-based and agentless monitoring. With over 5000 different addons for monitoring your servers, the Nagios Exchange community has left no stone unturned.

By implementing effective application monitoring using Nagios, your organization may immediately identify application, service, or process problems and take corrective action to avoid application users experiencing downtime. Nagios provides tools for monitoring applications and their state including Windows, Linux, UNIX, and Web applications.

Nagios has three different types of applications

  1. Nagios XI: Nagios XI monitors important infrastructure components such as applications, services, operating systems, network protocols, system metrics, and network infrastructure. Several hundred third-party addons enable monitoring of almost all internal and external applications, services, and systems.
  1. Nagios Log Server: Nagios Log Server significantly simplifies the process of searching for information in your log files. Create alerts to advise you of potential hazards, or just query your log data to perform a rapid audit of any system. With Nagios Log Server, you can consolidate all of your log data in a single location, with built-in high availability and fail-over.
  1. Nagios Fusion: Nagios Fusion provides a high level of visibility and scalability for your network, assisting you in resolving issues associated with numerous networks and geographical separation. Centralization simplifies network management by allowing you to visualize numerous Nagios XI and Core servers in a single location.

10. Snort

Snort is the most widely used Open Source Intrusion Prevention System (IPS) in the world, with over a million users. Snort IPS makes use of a set of rules that help identify harmful network activity, and it then uses those rules to find packets that match against those criteria and creates warnings for the users who are viewing them.

Snort can also be used inline to prevent these packets from being sent. Snort may be used in three different ways:

  1. as a packet sniffer similar to tcpdump,
  2. as a packet logger which is handy for network traffic debugging
  3. as a full-blown network intrusion prevention system.

Snort is available for download and configuration for both personal and commercial use.

Snort rules are provided in two sets once they have been downloaded and configured: the "Community Ruleset" and the "Snort Subscriber Ruleset." Once downloaded and configured, the "Community Ruleset" and the "Snort Subscriber Ruleset" are used.

Cisco Talos is responsible for the development, testing, and approval of the Snort Subscriber Ruleset. Subscribers to the Snort Subscriber Ruleset will receive the ruleset in real-time, as soon as they are made available to Cisco customers for general distribution. website provides you with the ability to download and install the rules on your computer's network. The Snort community contributes to the development of the Community Ruleset, which is then QAed by Cisco Talos. It is open to any and all users at no cost.

11. Teramind DLP

Data Loss Prevention (DLP) is a strategy for ensuring that your employees and contractors do not share sensitive or company-sensitive data outside of your organization, either unintentionally or intentionally. A data loss prevention solution identifies and categorizes sensitive data and IP by utilizing content discovery, digital inspection techniques, and contextual analysis.

Following that, data usage situations are defined via policies and regulations. Following that, the DLP software keeps an eye on user behavior. Following that, user behaviors are compared to data loss protection rules. If the condition specified in the rule is met, the relevant action is executed.

Stopping an action, blocking a user, alerting an administrator, asking management override, and others are all possible actions.

Teramind's endpoint Data Loss Prevention solution is 'user-centric,' going beyond typical DLP approaches. Teramind's data loss prevention systems incorporate cognitive behavioral analysis to identify human variables.

Malicious intent, errors, or accidents are all examples of human factors. You can deploy effective security against data breaches and other data exfiltration attempts using Teramind's data loss prevention software.

Teramind's data loss prevention software gives the highest return on investment for businesses of any size. DLP software is intended to aid small and medium-sized businesses, organizations, and the public sector in addressing data loss, cybersecurity, and insider threats.

Additionally, Teramind's compliance management capabilities assist you in adhering to regulatory requirements like GDPR, HIPAA, PCI DSS, and ISO 27001.

Some of the most notable features of Teramind DLP Software

  • Monitoring of User Activity in Real-Time: The DLP solution monitors all user behavior, including that of third-party vendors and privileged users, on more than 12 system objects, including the website, application, keystroke, instant messaging, email, and network.
  • A Highly Effective Policy and Rule Engine: The DLP software from Teramind includes hundreds of pre-built rules, templates, and data categories. With a simple, visual Policy & Rule Editor, you may create your own rules.
  • Detection of Insider Threats: Intelligent user behavioral analysis paired with session recording and replay, real-time alarms, and immutable logs enables early detection of insider threats.
  • Content Discovery and Classification: The DLP solution identifies and classifies sensitive material in the form of structured and unstructured data in motion. Templates for classifying Personally Identifiable Information (PII), Personal Health Information (PHI), and Personal Financial Information (PFI) are already included.
  • Advanced OCR: Advanced OCR enables 'on-the-fly' content discovery. Using keywords, patterns, and regular expressions, detect sensitive text on the screen (within images, programs, and even movies).
  • Monitoring of the Clipboard: The Clipboard Monitoring and Interception feature of Teramind's data loss prevention system enables you to prevent sensitive data from being shared via clipboard copy/paste operations.
  • Tagging and Fingerprinting: Teramind's advanced fingerprinting and tagging capabilities automatically identify critical documents and files and then monitor their usage, allowing you to keep track of your data even when it is edited or transferred.
  • Management of Compliance: Teramind's DLP services have built-in support for compliance and standards such as GDPR, HIPAA, PCI DSS, and ISO 27001, and maybe customized to meet additional regulatory requirements through the use of a robust Policy & Rules editor and a variety of monitoring and reporting tools.
  • Management of Risks: On the dedicated Risk Dashboard, leverage DLP services to identify high-risk individuals, rules, and system objects. The comprehensive risk assessment capabilities of the DLP software assist in identifying and prioritizing high-risk regions.

12. Burp Suite

When it comes to protecting your applications, you need to know how they're being attacked. Security testing of online applications is made easier using Burp Suite, an integrated platform and graphical tool that supports the full testing process, from the initial mapping and analysis of an application's attack surface to detecting and exploiting security vulnerabilities.

Its diverse technologies integrate smoothly to assist the whole testing process, from initial mapping and analysis of an application's attack surface to identifying and exploiting security flaws. Burp Suite is pre-installed in Kali Linux.

PortSwigger Web Security developed the tool, which is written in Java. The tool is available in three editions: a free Community Edition, a paid Professional Edition and an enterprise edition that may be purchased after a trial period. The Community version comes with much fewer features. It aims to provide a comprehensive solution for performing security assessments on web applications. Along with standard features such as a proxy server, scanner, and invader, the tool has sophisticated features such as a spider, a repeater, a decoder, a comparer, an extension, and a sequencer.

13. Nmap

Nmap is an abbreviation for Network Mapper. It is a free and open-source Linux command-line program that is used to scan a network's IP addresses and ports for installed applications.

Nmap enables network administrators to determine which devices are connected to their network, open ports and services, and identify vulnerabilities.

Gordon Lyon (a.k.a. Fyodor) created Nmap as a tool for quickly mapping a complete network and locating open ports and services.

Nmap has grown in popularity as a result of its appearances in films like The Matrix and the famous television series Mr. Robot.

14. KisMAC

The free and open-source software assists you in collecting critical information about nearby WiFi networks. The KisMAC WiFi scanner app can detect SSIDs, show you the clients who are currently logged in, and even allow you to sketch WiFi maps.

  • It detects and displays information. Wireless network names that have been disguised or blocked.
  • Lists all of the people who are currently logged into the system (MAC Address, IP address, signal strength)
  • Maps and GPS are supported.
  • Possesses the ability to create a network coverage map.
  • Export and re-import of PCAP
  • Has a frequency range of 802.11b/g
  • Attacks on encrypted networks that differ from one another
  • Attackers who attempt to deauthenticate
  • Approved as AppleScript-capable is the application in question.
  • A drone capturing system that supports Kismet

Which Network Security Tool Should Be Used?

Network security tools and resources are available to assist a firm in safeguarding its secret information as well as its general efficiency, credibility, and even its ability to conduct commercial operations successfully.

The network of a corporation is subjected to threats of every shape and size. Consequently, they should be prepared for a wide range of techniques to recognize and protect against any risks that may arise. Individual hackers, on the other hand, are not a concern to most enterprises; rather, groups of well-funded attackers that target specific firms pose a greater hazard. As a result, their network security policy must be flexible enough to accommodate the many techniques taken by these hackers.

Here are the top 5 network security testing tools that every company should utilize for network security protection.

  1. Wireshark
  2. Splunk
  3. Snort
  4. Nagios
  5. Nmap

Which Two Basic Functions are Performed by Network Security Tools?

Two main functions are performed by Network Security tools are as follows:

  1. Monitoring network traffic and showing what kind of information an attacker may get from it.
  1. Attack simulations to find out whether any flaws exist in the production network.