Review the results and answer the following questions.Nmap is among the most useful tools for network administrators to diagnose network problems, security auditing and even offensive security, often called the “Swiss Army knife” for sysadmins and hackers Nmap constituted a revolutionary tool which until today leads the market. Nmap done: 1 IP address (1 host up) scanned in 23.96 secondsĬ. Service Info: OS: Linux CPE: cpe:/o:linux:linux_kernel |_http-server-header: Apache/2.4.7 (Ubuntu) Other addresses for (not scanned): 2600:3c01::f03c:91ff:fe18:bb2fĢ2/tcp open ssh OpenSSH 6.6.1p1 Ubuntu 2ubuntu2.8 (Ubuntu Linux protocol 2.0) At the terminal prompt, enter nmap -A -T4. This site allows users to learn about Nmap and test their Nmap installation.ī. Nmap done: 256 IP addresses (4 hosts up) scanned in 346.89 seconds Service Info: Host: Welcome OS: Linux CPE: cpe:/o:linux:linux_kernel ~]$ nmap -A -T4 10.0.2.0/24Ģ2/tcp open ssh OpenSSH 8.2 (protocol 2.0)Ģ3/tcp open telnet Openwall GNU/*/Linux telnetd In one test environment, the scan took about 4 minutes. Note: This operation can take some time, especially if you have many devices attached to the network. The network address 10.0.2.0/24 is used in this example If your VM has a different netmask, search the internet for a “CIDR conversion table” to find your prefix. The /24 is called the prefix and is a shorthand for the netmask 255.255.255.0. Therefore, the network address is 10.0.2.0. For example, in the IP address 10.0.2.15, the. The last octet of the IP address should be replaced with a zero. To locate other hosts on this LAN, enter nmap -A -T4 network address/prefix. Review the results and answer the following questions.Īnswers will vary.
#Zenmap topology code
| ftp-anon: Anonymous FTP login allowed (FTP code 230)
RDNS record for 127.0.0.1: localhost.localdomain Other addresses for localhost (not scanned): ::1 Nmap scan report for localhost (127.0.0.1) Depending on your local network and devices, the scan will take anywhere from a few seconds to a few minutes. At the prompt, enter nmap -A -T4 localhost. In this part, you will use the switches from the example in the Nmap man pages to scan your localhost, your local network, and a remote server at. Scroll through the page to learn more about nmap. T4 is recommended for a decent broadband or ethernet connection.į. T4 for faster execution by prohibiting the dynamic scan delay from exceeding 10 ms for TCP ports. In the first instance of example, you see three matches. This will search for the word example forward through the man page.Į. The forward slash searches forward through the document, and the question mark searches backward through the document. To search for a specific term or phrase use enter a forward slash (/) or question mark (?) followed by the term or phrase. You can also press the space bar to forward one page at a time. While in the man page, you can use the up and down arrow keys to scroll through the pages. Nmap can be commonly used for security audits, to identify open ports, network inventory, and find vulnerabilities in the network.ĭ. Some of the nmap features include host discovery, port scanning and operating system detection. Nmap is used to scan a network and determine the available hosts and services offered in the network. These pages can include these sections: Name, Synopsis, Descriptions, Examples, and See Also.Ĭ.
#Zenmap topology manuals
The manual pages are the reference manuals found on Unix and Linux OSs. The man command displays the manual pages associated with the arguments. In this part, you will use manual pages (or man pages for short) to learn more about Nmap. Nmap is a powerful network utility that is used for network discovery and security auditing.
#Zenmap topology how to
We will explore how to use the Nmap utility. There are a variety of port scanning methods that can be used. Port scanning is usually part of a reconnaissance attack. Instructor Note: Red font color or gray highlights indicate text that appears in the instructor copy only.
9.3.8 Lab – Exploring Nmap (Instructor Version)