Top 15 Nmap Commands

* both the command would do the same here. On your Kali machine, in a Terminal window, execute this command, replacing the IP address with the IP address of your Windows server: nmap 172. Nmap is an open source security audit tool that is used by most security experts and network engineers. Top 15 Nmap Alternative and Similar Softwares | Oct 2019 Nmap ("Network Mapper") is a free and open source (license) utility for network exploration or security auditing. The following command will try to discover hosts' services using the DNS Service Discovery protocol. Full TCP port scan using with service version detection - usually my first scan, I find T4 more accurate than T5 and still "pretty quick". Once nmap finishes, the nmap results are parsed and passed to a system which, based upon a simple set of rules, delegates further service-level enumeration to service-specific modules found in lib/. Linux Hint LLC 1669 Holenbeck Ave, #2-244, Sunnyvale, CA 94087 [email protected] /nmap -F scanme. In these tcpdump examples you will find 22 tactical commands to zero in on the key packets. Practical examples of nmap commands for running and getting the most of this powerful tool. It’s also so famous that it has been featured in many movies. #nmap fibrevillage. In addition to the classic command-line Nmap executable, the Nmap suite includes an advanced GUI and results viewer (Zenmap), a flexible data transfer, redirection, and debugging tool (Ncat), and a utility for comparing. The following command will try to discover hosts’ services using the DNS Service Discovery protocol. Usage: nmap [Scan_Type(s)] [Options] {target specification} 1) Active the Kali PC viewer on the Kali virtual machine, and open a terminal window on Kali. In this tutorial you'll fined 20 basic examples of Nmap command usage. Open Source Nmap reviewed and rated by IT pros, who share the good, the bad, and the ugly, along with tips and recommendations for getting the most out of it. We feel quite handicapped not being able to run commands on our remote Linux server, this is where SSH comes in handy. The simple command nmap scans 1,000 TCP ports on the host. Nmap is a very useful network tool. The easiest way to do that is to search your harddrive for *. so if some one is tracing our connection using wireshark like tools, then he/she can easily see your data along with your login id and password. Once created, enter the following nmap command: nmap 192. Nmap done: 64 IP addresses (35 hosts up) scanned in 3. It is among the top ten (out of 30,000) programs at the Freshmeat. If you have read any of the other of my NMAP articles then it is best not to perform a PING. However, nmap command comes with lots of options that can make the utility more robust and difficult to follow for new users. This will show you all the commands which you use to scan anything. How to Run the 'top' Command In its basic form all you need to do to show the current processes is type the following in a Linux terminal :. 5 Ways Cheatography Benefits Your BusinessCheatography Cheat Sheets are a great timesaver for individuals - coders, gardeners, musicians, everybody!But businesses can benefit from them as well - read on to find out more. Many advanced users often need to find and list all hosts on a network, often for IP discovery, connecting to a remote machine, or some other system administration or network admin purpose. 1-Basic Scanning Techiniques. That will do a simple PING scan of the entire 192. It is free and open source application which aims to make Nmap easy for beginners to use while providing advanced features for experienced Nmap users. The basic concept of how to use MetaSploit is as follows: – Run msfconsole in your terminal. We should know how it works in order to secure our system. I was doing some learning on Wireshark and the tutorial called to use the command. During a recent penetration test, our team found a few web servers that were vulnerable to a PHP-CGI query string parameter vulnerability (CVE-2012-1823). Nmap is the definitive port scanner. nmap -T4 -F 10. In these tcpdump examples you will find 22 tactical commands to zero in on the key packets. 1 --top-ports 2000 Port scan the top x ports -p-65535 nmap 192. Command: nmap -T4 -F Scan faster than the intense scan by limiting the number of TCP ports scanned to only the top 100 most common TCP ports. Once you’ve developed a policy you are happy with, the next step is to test your firewall rules. Which of the following commands would result in a scan of common ports with the least amount of; Which of the following will perform an Xmas scan using NMAP? Which Nmap option would you use if you were not concerned about being detected and wanted to; If you want only to scan fewer ports than the default scan using Nmap tool, which option would you. X required more than 300 seconds to complete in this scenario. Nmap is a free and useful utility to quickly scan opening ports from a server or network device. zenmap is the official nmap security scanner gui. Nmap command is fairly extensible & a big topic to cover in single tutorial. More details on Npcap can be found at https://npcap. Running just nmap will display the options available as well as example usage. We should have basic knowledge of Kali Linux commands. Introduction. However, nmap command comes with lots of options that can make the utility more robust and difficult to follow for new users. Version scanning would also expose the true address, -sV is not specified. Command: nmap -T4 -F Scan faster than the intense scan by limiting the number of TCP ports scanned to only the top 100 most common TCP ports. Net repository. Nmap: Network Exploration and Security Auditing Cookbook - Second Edition by Paulino Calderon Stay ahead with the world's most comprehensive technology and business learning platform. At over 400 pages, the books 15 chapters provide the reader with everything they need to know about using Nmap to the fullest. The XML output references an XSL stylesheet which can be used to format the results as HTML. nmap -n -Pn -p- Ideally it should look like this. In Nmap's 15-year history, performance has always been a top priority. 0012s latency). txt Find out if host/network is protected…. Nmap can be run from a shell prompt or using a graphical frontend. Nmap is the scanner that other scanners are measured against and you will know how to use it from start to finish. The awk command is used like this: $ awk options program file. ) free and open source application which aims to make nmap easy for beginners to use while providing advanced features for experienced nmap users. Firstly Download Nmap software for scan ports. Reading time 9 minutes Let's see how Nmap can be installed on the most popular Linux distros Nmap 6 40 ( http nmap org ) at 2018 05 11 17 44 EDT Nmap scan report for Enable multiple modules from command line wget https github com angryip ipscan releases download 3 5 2 ipscan _3 5?. Folks, I've noticed both with Nesses 2. Scan hosts and IP addresses reading from a text file. Nmap (Network Mapper) is a security scanner originally written by Gordon Lyon (also known by his pseudonym Fyodor Vaskovich) used to discover hosts and services on a computer network, thus creating a "map" of the network. The purpose of this post is to introduce a user to the nmap command line tool to scan a host and/or network, so to find out the possible vulnerable points in the hosts. 1 Cloak a scan with decoys The -D option it appear to the remote host that the host(s) you specify as decoys are scanning the target network too. The purpose of this post is to introduce a user to the using nmap command…. In this guide, we will discuss some basic information about networking ports and how you can use nmap to find your weaknesses. What Nmap is ? its an open source security tool for network exploration, security scanning and auditing. used for scanning your local network. Nmap scripts are found in the user share Nmap scripts folder. nmap command comes with a lots of options that make the utility more robust and difficult to follow for new users. Nmap is used for exploring networks, perform security scans, network audit and finding open ports on remote machine. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. 21s InfoSec ResourcesNmap Cheat Sheet 5: The Final View of a Ninja By using a POP3 command we can list them, and thanks to Nmap, we can automate this task and include this service information in our scan results. nmap - Network exploration tool and security / port scanner. If you also use Nessus with Nmap, download this cheat sheet instead as it has all the tables included in the Nmap cheat sheet plus three extra Nessus tables. This command commits any files you've added. Back in the day, Nmap supported an option called “interactive. It is an open source security tool for network exploration, security scanning and auditing. SSH to the reverse proxy server. Various Nmap Commands with Examples for Linux System is explained in this article. Heartbleed SSL bug Scanning using Nmap on Kali Linux. 1 nmap -f fw2. Use this command: · If we want to scan the entire subnet,then. The command nmap scanme. Reconnaissance of the target using different Nmap Discovery commands. Folks, I've noticed both with Nesses 2. Find the nmap package, and then grep that package's contents for nmap:. It is available for all major platforms. 1 Scan a host name. Scan hosts and IP addresses reading from a text file. How to Run the 'top' Command In its basic form all you need to do to show the current processes is type the following in a Linux terminal :. In this guide, we will discuss some basic information about networking ports and how you can use nmap to find your weaknesses. local to get a list of services. Let us now look at some commands we can use for scanning open ports. Nmap output gives information about scanned targets which includes whether the host is … Continue reading "Nmap Cheat Sheet". Let your creative juices flow, while evading intrusion detection systems. 0 boot2root CTF challenge Walkthrough. 200, that means it does not really ping all IPs. 200, then it would get no response and disappear from the arp table. 1/24 and click on the scan button. The tutorial will start with basic scanning techniques and explain Nmap fundamentals. Nmap Tutorial Linux Pdf MF is the predominant port scanner for milk security professionals. NMAP is best network scanner till that date, when we take features as our concern, then NMap has left other scanners miles behind. Press question mark to learn the rest of the keyboard shortcuts. This vulnerability allows an attacker to execute commands without authentication, under the privileges of the web server. This option scans all reserved TCP ports on the machine scanme. Timing (-T) The main differences between these are the time Nmap waits between sending probes, with paranoid mode ( -T0) waiting five minutes between sending each probe, and polite mode ( -T2) waiting 0. Top 10 Nmap Command Examples For Sys/Network Admins Introduction: Nmap is short for Network Mapper. During a recent penetration test, our team found a few web servers that were vulnerable to a PHP-CGI query string parameter vulnerability (CVE-2012-1823). Scan with Nmap and use GNMAP/XML output file to Brute force Nmap open port services with default credentials using Medusa or Use your dictionary to gain access. This is one of the simplest uses of nmap. On the machine used to research this article, it took nine minutes for nmap to execute that command. Nmap Commands Nmap Commands. Best 15 Nmap command examples 1. Kali Linux scan network by nmap ping sweep and check for the live host. In this article, I’ll guide you through how to use Nmap commands. Scan specific ports or scan entire port ranges on a local or remote server. Nmap is one of the most used tools and primarily known in Linux that serves to perform port tracking. can i use nmap in ubuntu 13. -does what you would expect. How to Use Nmap Command. X required more than 300 seconds to complete in this scenario. 1, “A representative Nmap scan”. Nmap runs on all major computer operating systems, and official binary packages are available for Linux, Windows, and Mac OS X. The purpose of this post is to introduce a user to the using nmap command…. Now that you have understood what is DevOps, check out our. Delete & Undelete v2 Released ! Download Now !! Whats new in Delete/Undelete Command Version 2 ? Live OS CD to USB Script; NGLinuxInstall Tool: Install(Copy) Linux Live OS. Do you want to scan open ports easily? Well, check this tutorial about how to download, install and use Zenmap, the nmap GUI. How-to Emulate the TOP command in Windows On April 6, 2011, in How-to , Scripting , by Cubert aka (Cube Dweller) Top is a Linux process that shows a list of processes running on the system and what levels of resources are being used. Top 32 Nmap Command Examples For Sys/Network Admins - The purpose of this post is to introduce a user to the nmap command line tool to scan a host and/or network, so to find out the possible vulnerable points. Scribd is the world's largest social reading and publishing site. The script has a -RunStatsOnly switch which shows general information about the scan instead of information about each scanned host; for example, the runstats output includes the scan's start time, end time, command-line arguments when the scan was run, etc. Solved: Hello Community, I was wondering about arcsight Integration Commands, what integration commands are you guys using ? And in what use cases it - 1550339. Orange Box Ceo. You will need to use several modifiers on top of the nmap command in order to get full credit for this section. However, nmap command comes with lots of options that can make the utility more robust and difficult to follow for new users. It was designed to rapidly scan large networks. 0/24 will. nmap -f 192. In this tutorial you'll fined 20 basic examples of Nmap command usage. Although Microsoft has long since released a patch for this vulnerability entitled MS-0687 there are still a astounding amount of computers that are getting infected with Conficker due to the MS-0687 vulnerability. Below, I would like to list some of the command line utilities that saved my network many times. 6, while PRTG Network Monitor is rated 8. Figure 1: The Nmap front-end removes the need to learn the enormous range of options, and gives the administrator a ready-to-run command line (see the bottom of the figure. 0/24 --excludefile skipthese. Here is how nmap interactive looks like:. Let your creative juices flow, while evading intrusion detection systems. Many times, security researchers were using this option to avoid logging their nmap commands in the bash history log file. nmap isn't a simple script. Favorite penetration tools include NMAP, backtrack, MITM, etc. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. [[email protected] ~]# pkg search nmap [enter] lanmap-2006. See its examples and usage in our article "10 Practical Examples of Rsync Command" to learn more about it. Nmap NSE Howto: MySQL Auth Bypass Jun 12 2012 A recently disclosed critical vulnerability in MySQL authentication on some platforms gave me just the excuse I needed to write my first Nmap NSE script. Nmap Package Description. Though this tool has loads of information, anyone can start. 1- What is the best Nmap command to use when you want to list all devices in the same network quickly after you successfully identified a server whose IP address is 10. To accomplish its goal, Nmap sends specially crafted packets to the target host and then analyses the responses. 0 through 10. The important one and most often used is db_nmap which will run nmap with specified commands and record the findings within the database. What Nmap is ? its an open source security tool for network exploration, security scanning and auditing. The program has several profiles you can choose from, depending on the type of scan you want to perform. Most nmap operations require root authority. Zenmap is the official Nmap Security Scanner GUI. Only show open (or possibly open) ports. In Nmap's 15-year history, performance has always been a top priority. Open Source Nmap reviewed and rated by IT pros, who share the good, the bad, and the ugly, along with tips and recommendations for getting the most out of it. in ## Set your own offset size with the --mtu option ## nmap --mtu 32 192. However, nmap command comes with lots of options that can make the utility more robust and difficult to follow for new users. 0 recently and found it to be one of the most fun CTF systems to break into meant to be good for a beginner to intermediate hackers and the first in what will hopefully be an excellent multi-part series!. Nmap is a free and open source utility for network discovery and security auditing. In this guide, you will learn how to install and use Nmap. kali > nmap -sS 192. Nmap is a tool used for determining the hosts that are running and what services the hosts are running. Nmap ("Network Mapper") is a useful utility for network exploration or security auditing. In this cheat sheet you will find a series of practical example commands for running Nmap and getting the most of this powerful tool. Nmap: Network Exploration and Security Auditing Cookbook - Second Edition by Paulino Calderon Stay ahead with the world's most comprehensive technology and business learning platform. 23 seconds Multiple target scan The example above demonstrates using Nmap to scan three addresses at the same time. Orange Box Ceo. Nmap Reference Guide Options Summary. The easiest way to use this is to load the XML output in a web browser such as Firefox or IE. How to check list of open ports in Linux using nmap Command? Nmap (“Network Mapper”) is an open source tool for network exploration and security auditing. nmap -p 1-65535 -sV -sS -T4 target. Open Port Scanning and OS Detection with Nmap in Kali Linux. 1 (and also some versions of RHL) that when nmap is chosen as the port-scanner, and you specify some nmap scanning options, such as a FIN scan, you still only always get the default SYN scan. Nmap ("Network Mapper") is a free and open source (license) utility for network exploration or security auditing. Basic Nmap Scan against IP or host. Introduction. Org: Top 125 Network Security Tools. In our previous articles on nmap - we ran everything from the command line interface of various Linux distributions. This page is not a recommendation to uninstall Npcap 0. If you run nmap without any switches, it gives you a list of all available command-line options. It helps determine whether ports are open or closed. Free and open source tool for network discovery, admin, and security auditing. re: Top 15 Indicators Of Compromise Great discussion on IOCs! There is now a Open Source Database collecting IOC's for the public to upload, download and comment on different IOC. Also, to keep track of the services which are running on the server Thanks Again!!!!. Press J to jump to the feed. in Output #3 Nmap Complete Network Host Scann nmap -sP 192. What is ping sweep and how to do a ping sweep Submitted by Sarath Pillai on Mon, 03/25/2013 - 22:55 I must begin this by saying that the most widely used command by either a network administrator or a Linux system administrator is the PING command. Open ports are shown as they are found and completion time estimates are provided when Nmap thinks a scan will take more than a few minutes. In every Nmap's switch commands are easy to remember because of the short form (like -sL, which means scan List or List Scan). Here’s everything you can do with Nmap – Command Examples Nmap is an open source network mapper that allows one to scan network of hosts, services, perform security assessment and auditing. If the IP IDs are seen as too out-of-order then the scan is terminated. However, nmap command comes with lots of options that can make the utility more robust and difficult to follow for new users. 15 -p- Nmap OS Scan. Now that you have understood what is DevOps, check out our. This article give your the list of top common Nmap commands that helpful for system and network administrator. com –p 22 -vv. The OWASP Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications. ) Figure 2: Nmap even has a web front-end, although the web interface does not offer the full range of Nmap capabilities. Hacking or Penetration testing is the practice of testing a computer system, network or Web application to find vulnerabilities that an attacker could exploit. Check the release notes for more details. To install Nmap on Ubuntu 17. Various Nmap Commands with Examples for Linux System is explained in this article. Today we will see how we can use a Nmap script to scan a target host for SMB vulnerabilities. The purpose of this post is to introduce a user. Now let's use Nmap, a network scanner. If you want more commands then type nmap and hit enter. 1 #27: Cloak a scan with decoys The -D option it appear to the remote host that the host(s) you specify as decoys are scanning the target network too. Nmap can be a valuable diagnostic tool for network administrators while they can be also a potent reconnaissance tool for the Black-hat community (Hackers, Crackers, Script Kiddies, etc). #nmap fibrevillage. If it looks something like this, you’re in serious trouble! The DirectAccess server should never be listening for requests other that HTTPS on the public Internet. Because if I ping manually X. 200, then it would get no response and disappear from the arp table. It then sends a follow-up query for each one to try to get more information. A good demonstration of this technic is BlindElephant but also Nmap's http-favicon script which could be considered a special case. It can give you useful information about what’s running on network hosts. How to enumerate webserver directories with Nmap. Only show open (or possibly open) ports. One of the easiest ways to find all hosts and the host IP addresses on a network is by using the nmap command. If the hosts sport domain names you do not recognize, it is worth investigating further to prevent scanning the wrong company’s network. It is used for scanning network, find hosts available in the network, finds ports which are open, firewall configurations and other characteristics. Nmap Reference Guide Options Summary. Run the following command to install nmap on RHEL based Linux distributions: yum install nmap. Development along these lines:. 2' is shown in Figure 3. The basic syntax for Nmap is: nmap 192. While Nmap has grown in functionality over the years, it began as an efficient port scanner, and that remains its core function. net - Cheat Sheet and Example. This tutorial will show you how to update nmap in kali linux 2. In this article, I am going to discuss the nmap pingsweep for checking livehost. This NMap tutorial provides a brief background, install instructions & a walk-through of its most crucial functions. The login name and password are in clear text format while logging. skip to content; cmdref. The less command is considered to be a more powerful version of the "more" command which is used to display information to the terminal one page at a time. 243 Nmap scans the most common 1000 ports. Nmap also calculates the round-trip time delay (or latency). 23 seconds Multiple target scan The example above demonstrates using Nmap to scan three addresses at the same time. Top Nmap Command Examples For Linux Scan an IP address nmap 192. Guyzz I hope you learn how to use Nmap. Start studying CEH v9 nmap command switches. Nmap is rated 9. The seemingly impossible feat was performed in less than 15 minutes. in nmap -f 15 fw2. less Command - less command is used to view files instead of opening the file. This tutorial will explain additional methods to carry out network scans with nmap. This useful command comes with loads of options and capabilities, but you need to have expertise in using it. If you run nmap without any switches, it gives you a list of all available command-line options. This page outlines the top 1000 ports as defined by nmap authors. In addition to the classic command-line Nmap executable, the Nmap suite includes an advanced GUI and results viewer (Zenmap), a flexible data transfer, redirection, and debugging tool (Ncat), and a utility for comparing. It helps determine whether ports are open or closed. This repository aims to serve as a quick reference to modify the output into readable formats. In this cheat sheet you will find a series of practical example commands for running Nmap and getting the most of this powerful tool. For more than a decade, the Nmap Project has been cataloguing the network security community's favorite tools. Nmap ("Network Mapper") is a free and open source tool for network discovery and security auditing. NMap stands for Network mapper and its a free open source hack tool for network scanning and network security auditing. Nmap stands for Network Mapper. Since Nmap 5 we've rewritten the traceroute system for higher performance and increased the allowed parallelism of the Nmap Scripting Engine and version. Vision2 - Nmap's XML result parse and NVD's CPE correlation to search CVE Reviewed by Zion3R on 10:30 AM Rating: 5 Tags Audit X BIND X Denial of Service X Nmap X Python X Scanner X Search X Vision2 X vulnerabilities X Vulnerability Scanner. In this article you will learn how to capture network packet using Wireshark when attacker is scanning target using NMAP port scanning method. 1 To list the host(s) found in the scan. vimrc file inside of Vim, this command will apply all configuration changes. 04 Final Beta, And It’s Official Flavours Are available For Download This comprehensive tutorial describes. It is useful whether one is a novice and only getting into basic security testing, or an advanced user looking for ways to optimize Nmap. Nmap ("Network Mapper") is a free and open source utility for network exploration or security auditing. nmap - Network exploration tool and security / port scanner. This wildcard in quotes tells nmap to scan all of the +65000 ports that are known. Is nmap Good or Evil? The bad guys are already using nmap for reconnaissance, because a single scan can tell you a lot about the open doors and windows in a computer's house. 70 Port scanning utility for large networks p5-Encode-CNMap-0. Let's take a look at some of the scripts which support enumeration. Nmap runs centered around a command line similar to Windows Command Prompt, but a GUI interface is available for more experienced users. Finding a target device to attack depends on the hacker’s objectives and may be opportunistic or targeted. 12 What is Charles trying to do?. Output only the IP addresses of the online machines with nmap What I would like is to be able to run an nmap command, migrated from serverfault. # Idle Zombie Scan, first t need to find zombie ip $ nmap -sI [Zombie IP. It would not help in your case, however, since closed ports are more strongly preferred than open ones, and 113 is the only closed port in the scan. You will learn how to use Nmap from the command line in Linux to find active hosts on the network and scan open ports. It then sends a follow-up query for each one to try to get more information. 0 Introduced !! Download Now ! Download delete/undelete commands. Scan IP ranges. Here is the kali Linux commands complete list and their Functions or you can say A to Z kali Linux commands. Popular: Thousands of people download Nmap every day, and it is included with many operating systems (Redhat Linux, Debian Linux, Gentoo, FreeBSD, OpenBSD, etc). In short, nmap displays exposed services on a target machine along with other useful information such as the version and OS detection. It also helps find out the operating system running on the host or target machine (along with services of ports). And even a remote user can easily find that your telnet port is on or not by just using simple nmap command. Some people prefer this front end. /24 Scans for the random top 15 ports, which are likely to be open/up often. The list scan is a good sanity check to ensure that you have proper IP addresses for your targets. Nmap ("Network Mapper") is a free and open source (license) utility for network exploration or security auditing. Even Wireshark switched to Npcap recently. Nmap Network Scanning is the official guide to the Nmap Security Scanner, a free and open source utility used by millions of people for network discovery, administration, and security auditing. /24 and if you 2,122 3 3 gold badges 15 15 silver badges. To create a backdoor, the command is, $ ncat -l 10000 -e /bin/bash 'e' flag attaches a bash to port 10000. Moving on, we will cover the advanced functionalities of the Nmap Scripting Engine (NSE) such as libraries, scripts, APIs, and so on. 200, then it would get no response and disappear from the arp table. 0 boot2root CTF challenge Walkthrough. When you give the command -sL then you tell nmap to scan the reverse DNS lookup to the host / IP range / or from specific domain in the above Figure 17. net is command references/cheat sheets/examples for system engineers. Hi nmap-dev! This collection of patches I am proposing greatly increases the capabilities of the -p switch, lays the groundwork for a system that optimises the set of ports scanned in the default/fast scans, and adds an convenient, flexible way to trade-off port scan coverage for a reduction in run time. r81_4 Lanmap sits quietly on a network and builds a picture of what it sees nmap-7. whose vendors simply paged through the Nmap man page adding specific rules!. 5 Ways Cheatography Benefits Your BusinessCheatography Cheat Sheets are a great timesaver for individuals - coders, gardeners, musicians, everybody!But businesses can benefit from them as well - read on to find out more. This NMap tutorial provides a brief background, install instructions & a walk-through of its most crucial functions. In short, nmap displays exposed services on a target machine along with other useful information such as the version and OS detection. 0 subnet, and resolve names via DNS if possible and list everything found for you. 10 seconds The results show that at execution time only 35 hosts were up, or to be 100% precise, only 35 hosts answered the Nmap scan. Command: nmap -sV -T4 -O -F –version-light Add a little bit of version and OS detection and you got the Quick scan plus. Kali Linux scan network by nmap ping sweep and check for the live host. H ow do I use nmap command to scan a single server using a host name or an IP address under Unix like operating systems? You can use a nmap command to scan a single server using a host name such as server1. Nmap, or Network Mapper, is an open source Linux command line tool for network exploration and security auditing. nmap -f 192. How to save nmap output to file example. Then tap on "nmap" button.