Therefore the purpose of Zenmap is not to replace Nmap, but to make Nmap more useful. The nature of a frontend is that it depends on another tool to do its job. Nmap is a quick tool that provides some security misconfigurations and vulnerabilities of the target.No frontend can replace good old command-line Nmap. This tool also suggests mitigation measures that are missing in the Nmap tool. Now, which one is better? If you are performing official audits and you need to submit reports to clients, Nessus is better as this tool gives clean reports for different security compliance. Nmap tool is more used to identify open ports and services to identify the specific types of vulnerabilities. Nessus is a more complete tool and used as a defacto tool by professional security auditing agencies. Nessus and Nmap, both tools are broadly used by the information security community. Nmap is very fast and you will scan by just type the Nmap with an IP address. To start the Nessus scan, you need to fill in whole details such as IP address, select plugins, etc. Nessus is a slow tool if you compare it with the Nmap tool. Although, a big community is there to resolve issues and develop new scripts to identify new vulnerabilities. As stated earlier, Nmap is free and open-source hence no customer support is available. Nessus is owned by Tenable and has a customer support team that helps to diagnose issues related to problems. ![]() Below is the command to run a Nmap basic scan: nmap But most security researchers use this tool in the command line. Nmap tool is available both in the command line and GUI. Nessus also supports concurrency as you can run multiple scans at the same time and stop, resume scan options are also available. Just need to provide target details such as the name of the scan, target IP, plugin selection for the type of scan, etc. Nessus comes with a nice GUI (Graphical User Interface) and new users can also run scanning for target very easily. Nmap is able to run some vulnerability scripts but it is not equivalent to the whole configuration assessment activity as performed by Nessus. This tool is very effective in configuration assessment activity and is the number one choice for security auditors. Computer of Internet Security(CIS)) benchmarks. Nessus is popular and very effective for doing configuration assessments based on available international (e.g. Nmap is free and you can use this tool without paying a single penny. Nessus Professional is not a much expensive tool and different subscription plans are available for around $3000 a year. Nessus community edition is free but has very little functionality. Nessus tool is available in both community and professional editions. ![]() You can select scripts and run them whenever required. Nmap also has a scripting engine and a lot of scripts available at location /usr/share/nmap/scripts. Nessus scripts are available that are called plugins that identify known vulnerabilities. Both Nmap and Nessus have vulnerability scripts and you can use them very easily against the target system. In this discussion, vulnerability scripts is the term used to denote scripts available in a database of tools that help in finding known vulnerabilities automatically. Port scanning is one such functionality available in Nessus tool. But if you talk specifically, Nmap is a tool used for only port and service scanning and Nessus has a whole list of security functionality including port scanning. Nessus tool updates plugins one you start first time by using īoth tools provide port scanning security functionality and provide great details while reporting open ports of the target system. After the expiration of 7 days trial, you can use the community edition of the tool freely. Remember, you need an official id to register for Nessus Professional tool and it is available for 7 days free trial. Click Here if you are interested in comparing OpenVAS vs Nessus, both are vulnerability scanner tools.Ĭomparison of tools based on security functionality available in Nmap and Nessus Functionalityīoth Nessus and Nmap tools are easy to install and you can easily install both tools by following the official guide. This article covers both Nessus and Nmap tools, here we compare the functionalities offered by both tools. Both tools used remotely and provide a list of possible vulnerabilities of the target system. Nessus is mainly used as an IT infrastructure vulnerability assessment tool while Nmap is an open-source and most popular port scanner tool.
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