Nmap linux. ru/kaxhrfz/python-cheat-sheet-for-interview-pdf.

May 28, 2016 · When I run tcpdump to see the traffic and where it's going, it shows all these ports being scanned when the Nmap command is run, and the Nmap scan completes successfully. So it has no special command-line option. It is an open-source Linux command-line tool that is used to scan Sep 28, 2018 · If you already know the IP of one, awesome. Nmap (AKA Network Mapper) es una utilidad de exploración de red de línea de comandos para Linux, BSD y otros sistemas operativos. com. While Nmap has grown in functionality over the years, it began as an efficient port scanner, and that remains its core function. printer, router), the OS family (e. Nmap is a free and open-source network scanner. 1/24 #custom UDP scan N. When an Nmap TCP SYN scan encounters a closed port, the target machine sends back a RST packet and that port's status is determined within the space of only one round-trip-time. Would be nice to save in other formats as well, such as normal output and HTML. org) Nmap scan report for 192. nmap --script smb-os-discovery --script-trace example. Dec 15, 2023 · The nmap command in Linux is a powerful tool used for network exploration and security auditing. Solaris is also a first-tier supported platform because Sun now offers source code to their OS, and also because the Sun GESS Security Team sent me a new Ultra workstation. Jun 17, 2024 · With these capabilities, Nmap is a critical tool for maintaining network security and integrity. 0/8 10. > nmap www. It was even featured in a dozen movies , including The Matrix Reloaded , The Bourne Ultimatum . 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. Nmap comes pre-installed on several versions of Linux including Kali Linux . By the end of this comprehensive tutorial, you will understand key concepts around port scanning and be able to utilize nmap proficiently to inventory your network, perform penetration tests, analyze […] Here are commands that turn an Nmap XML output file into an HTML file using common XSLT processors. Nmap scans for vulnerabilities on your network, performs inventory checks, and monitors host or service uptime, alongside many other useful features. Every fingerprint has one or more Class lines. Org, and Codetalker Digest. org ) Nmap scan report for scanme. Here's a quick run-through of running Nmap in a Docker container. Jun 13, 2022 · This finishes an overview of a most commonly used Linux command by network experts - NMAP and its parameters that are frequently used. Input from Nmap "normal output" would be nice as well. 基本的なスキャン; STATEの種類; nmapのオプション-A : OSやバージョン情報を表示-p : ポート番号を指定 当端口对Nmap的探测做出响应，但是Nmap无法确定它们是关闭还是开放时，这些端口就被认为是 unfiltered(未被过滤的) 如果Nmap报告状态组合 open|filtered 和 closed|filtered时，那说明Nmap无法确定该端口处于两个状态中的哪一个状态。 当要求进行版本探测时，端口表也 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. Los clasificados como no filtrados son aquellos que responden a los sondeos de Nmap, pero para los que que Nmap no puede determinar si se encuentran abiertos o cerrados. ) free and open source application which aims to make Nmap easy for beginners to use while providing advanced features for experienced Nmap users. If all of the matches are classified as Linux, Nmap will simply print that the target is a Linux box. However, it is removed from a Debian Linux repos due to Python version 2 dependency issue as Python 2 is outdated. # nmap -A -T4 -F www. Dec 27, 2023 · Give Nmap a minute or two to send pings to all 254 IPs and aggregate responses. Nmap is a free and powerful port scanner tool to scan hosts on a network. Jan 27, 2022 · Paulino Calderon, co-founder of Websec and part-time Nmap developer, wrote Nmap Network Exploration and Security Auditing Cookbook, Third Edition, published by Packt, to offer firsthand insights into using the multifaceted tool. sample output: Mar 6, 2024 · Another misconception is that Nmap is difficult to use. Jun 30, 2024 · Learn to install Nmap on Debian 12, 11, or 10 Linux via APT or by downloading, compiling then installing the Nmap source binary. Must be able to save Nmap results to an XML file, even after Nmap runs. Hướng dẫn này chỉ cách cài đặt Nmap trên Linux và giải thích các tính năng quan trọng của Nmap. Dec 13, 2023 · Network Discovery: With Nmap users can scan networks and discover devices and hosts on a network, allowing network admin to understand the network more efficiently. 178. Frequently used scans can be saved as profiles to make them easy to run repeatedly. Nmap (“ Network Mapper ”) is a free and open source utility for network exploration and security auditing. Note: Use the sudo command instead of the SYN scan if you have root access. 12 ( https://nmap. 1/24 #custom TCP SYN scan sudo nmap -sP -PU161 192. kame. To scan a host, you can use the syntax, nmap [arguments] [IP address]. 141. Dec 11, 2013 · The Nmap aka Network Mapper is an open source and a very versatile tool for Linux system/network administrators. ; Become a partner Join our Partner Pod to connect with SMBs and startups like yours. Zenmap is a cross-platform application which is available for Linux, Windows and OS X. Plus, having experience with Linux based systems is a great way to get access to a wide selection of security tools. May 14, 2019 · What is Nmap? Nmap (Network mapper) is an open-source Linux tool for network and security auditing. Nmap informa de las combinaciones de estado open|filtered y closed|filtered cuando no puede determinar en cual de los dos estados está un puerto. The primary documentation for using Nmap is the Nmap Reference Guide. nmap -Pn -sn -sC example. On Unix systems, open a terminal window and try executing the command nmap --version. Nmap can scan various targets, ports, protocols, and options with different modes and output formats. 5. It is available for Linux, Windows, and MAC operating systems. Substitute dnf for yum if you are on Red Hat Enterprise Linux 7 or newer. Wrapping Up: Installing the ‘nmap’ Command in Linux. Apr 27, 2023 · Windows, Linux and MacOS users can download Nmap here. Based on the response, the nmap command in Linux determined if a port is open or closed and the status of the target machine. 04 LTS (Focal Fossa). 30 (The 1208 ports scanned but not shown below are in state: closed) PORT STATE SERVICE VERSION 22/tcp open ssh Akamai-I SSH (protocol 1. A script scan without host discovery or a port scan. A lot depends on how the host is configured and which services it is using. Printing the details for all of those fingerprints would be a mess. With Nmap installed correctly, you should be able to use it on your computer without any problems. even after specifying custom ports for scanning you may not get an active host. # nmap -sn 192. 1. -does what you would expect. Most fingerprints also have a Common Platform Enumeration (CPE) representation, like cpe:/o:linux:linux_kernel:2. Nmap issues the raw ARP requests and handles retransmission and timeout periods at its own discretion. org 192. Nmap is a powerful network discovery and security auditing utility that is free, open-source, and easy to install. It was designed to rapidly scan large networks, although it works fine against single hosts. 1, “HTML from XML output in a web browser”. org ) Nmap scan report for kame220. May 4, 2024 · Learn how to use the nmap command, a powerful tool for network mapping and security testing, with various options and examples. ¿Qué es Nmap? Nmap es la abreviatura de Network Mapper. By learning to use Nmap on Kali, you position yourself well for ethical hacking activities. Open up a terminal, if you haven’t already, and run the following linux command. Multi-platform support, including Linux, Windows, Mac OS X, FreeBSD/NetBSD/OpenBSD, Solaris, and all the other platforms on which Nmap is known to work. May 11, 2021 · 什麼是Namp; Getting Startd with nmap; Nmap Scripting Engine(NSE) GUI interface for nmap: Zenmap; 什麼是Namp. 171 Starting Nmap 7. com Starting Nmap ( https://nmap. Windows, Linux). Let‘s go over some basic scans to introduce you to the tool. Execute a specific script with script tracing. What is Nmap? Nmap is short for Network Mapper. B. On some recent versions of macOS, you might see a warning that Nmap is an “unidentified developer”, but you can ignore this warning. If the location of any of these files has been specified (using the --servicedb or --versiondb options), that location is used for that file. 5) 80/tcp open http AkamaiGHost (Akamai's HTTP Acceleration service) 443/tcp open ssl/http AkamaiGHost Jan 4, 2021 · How to Use Nmap Scripts in Linux? Nmap scripts combine power and flexibility. nmap --script snmp-sysdescr --script-args creds. 0,1,3-7. Sample output viewed in a web browser is shown in Figure 13. The Zenmap front-end makes Nmap very user-friendly. Oct 2, 2020 · Nmap is the most famous scanning tool used by penetration testers. Nov 10, 2023 · Testing network security controls and discovering vulnerabilities are essential part of any organization’s security plan. 93 (https://nmap. Install Nmap on Linux. org (64. Nmap started as a Linux utility and was ported to other systems including Windows, macOS, and BSD. Nov 22, 2010 · The Zenmap tool is actually a graphical front end for the very popular Nmap command line tool. To run a basic Nmap scan in Kali Linux, follow the steps below. Aquí es cómo instalar instalar Nmap en Linux. Linux users can either compile Nmap from source or use their chosen package manager. Nmap is used to discover hosts and services on a computer network by sending packets and analyzing the responses. While many port scanners have traditionally lumped all ports into the open or closed states, Nmap is much more granular. Mar 28, 2023 · Step 5 – Installing zenmap on a Debian Linux. But, fear not, you can still install using the following commands: . Run the Nmap-<version>mpkg file to start this installer. 6. Interactive mode caters to human users reading the results directly and it is characterized by a table of interesting ports that is shown in dozens of examples throughout this book. Oct 16, 2021 · Using Nmap on Linux. 68. Ncat is integrated with Nmap and is available in the standard Nmap download packages (including source code and Linux, Windows, and Mac binaries) available from the Nmap download page. root# nmap -sS 192. Sep 18, 2011 · Ports are classified as unfiltered when they are responsive to Nmap's probes, but Nmap cannot determine whether they are open or closed. If Nmap exists and is in your PATH, you should see output similar to that in Example 2. Jul 10, 2024 · How to Perform a Basic Nmap Scan on Kali Linux. It is a multi-platform (Linux, Windows, Mac OS X, BSD, etc. We’ll go through several examples on how to use this tool. Nmap provides a number of features for probing computer networks, including host discovery and service and operating system detection. org ) at 2016-05-28 00:52 SGT Nmap scan report for 192. If SSL is detected, Nmap connects using OpenSSL (if available) and tries to determine what service is listening behind that encryption layer. Seguimos con el curso de hacking ético y ciberseguridad; y en esta ocasión veremos cómo utilizar nmap para detectar equipos y hosts dentro de la red, así com Feb 1, 2023 · Grow Your Business. The ability to run Nmap on Linux, macOS and Windows is a huge benefit in today's multiplatform world. While remembering the many options is challenging, most scans are basic, and there are plenty of reference materials. Nmap reports the state combinations open|filtered and closed|filtered when it cannot determine which of the two states describe a port. Nmap will run on a Windows system, however, it generally works better and is faster under Linux, so that would be my recommended platform. Mar 31, 2020 · To install Nmap on Red Hat Enterprise Linux 8 or Fedora, you'd run: # dnf -y install nmap. If your home network doesn’t use the 192. May 6, 2024 · Why learn about Nmap? Nmap Command Examples in Linux and Unix; Features of Nmap; Nmap Commands; NMAP Commands Cheat Sheet; Frequently Asked Questions ; Introduction . Linux offers the “nmap” command to scan the subnet by displaying the connected device over the IP addresses. 00092s latency). Nov 18, 2022 · Introduction to nmap command. Method 1: Install Nmap via DNF Update Fedora Before Nmap Interactive output. Each contains four well-defined fields: vendor, OS family, OS Aug 17, 2021 · NMAP(Network Mapper)是一款免費且開源的軟體，主要用於網路探測及安全稽核目的，同時也是眾多IT人員用於NMAP來進行網路管理、監控運行服務的主機、解析IP位址的主機、網路、運行的服務(應用程式名稱及版本)、運行的作業系統版本、封包過濾等作業，上述這些都是屬於NMAP的應用範疇。 Nov 3, 2022 · In this article, I will take you through the steps to install Nmap on Ubuntu 20. net (203. Cách cài đặt Nmap trên Debian/Ubuntu 1. If not, Nmap has a tool to get the IP addresses of the computers on your network. La tabla de puertos también Sep 18, 2011 · Before scanning a target port, Nmap will attempt to send ICMP echo request to see if the remote host is “alive”. 13. Nmap scripts are written in Lua and stored at /usr/share/nmap Nov 19, 2012 · hi when I run the command : nmap -v -A local ip (same subnet as nmap server; ie no firewall) I get the following : Increasing send delay for xxxxxx from 0 to 5 due to max_successful_tryno increase to 4 Increasing send delay for xxxxxx from 5 to 10 due to max_successful_tryno increase to 5 Increasing send delay for xxxxxx from 10 to 20 due to max_successful_tryno increase to 6 Increasing send nmap. Mar 23, 2020 · What these scanning methods essentially do is craft and send a specific type of packet to the target IP and wait for a response. This can save time when scanning multiple hosts as nmap won’t waste time attempting to probe hosts that are offline. 168. 171 Host is up (0. This article has explained the usage of the “nmap” command to scan a subnet in the network. From explaining port scanning basics for novices to detailing low-level packet crafting methods used by advanced hackers, this book by Nmap's original # nmap scanme. TCP Connect() Scan Using Nmap command in Linux Dec 27, 2023 · Kali Linux is the go-to platform for security tools and penetration testing. Nmap (“ Network Mapper ”) is an open source tool for network exploration and security auditing. It scans for Live hosts, Operating systems, packet filters and open ports running on remote hosts. The command syntax is the same as usual except that you also add the -6 option. Jan 7, 2024 · Intrusion Detection in Linux: This article from Linux Journal offers a broad overview of Intrusion Detection Systems in Linux. 1 Host is up (0. ISC BIND, Apache httpd, Solaris telnetd), the version number, hostname, device type (e. To scan a host, you can run. Linux (RPM) Any other OS (source code) Older versions (and sometimes newer test releases) are available from the Nmap release archive (and really old ones are in dist-old ). Must be able to execute Nmap and read the XML output, and also be able to parse existing XML files. Dec 27, 2023 · Hello friend! Welcome to my beginner‘s guide on using nmap, the top port scanner used by over 2 million network administrators and security professionals worldwide. While Nmap was once a Unix-only tool, a Windows version was released in 2000 and has since become the second most popular Nmap platform (behind Linux). Jan 28, 2020 · Linux comes with various tools under its belt to help you along the way, including Nmap, ping, traceroute, netstat, ns lookup, and dig. Został zaprojektowany do szybkiego skanowania dużych sieci, ale również działa dobrze w stosunku do pojedynczych adresów. It supports ping scanning (determine which hosts are up), many port scanning techniques, version detection (determine service protocols and application versions listening behind ports), and TCP/IP fingerprinting (remote host OS or device identification). In this excerpt from Chapter 1, "Nmap Fundamentals," Calderon shares a recipe on how to use Nmap to find open ports. 0. Nmap tries to determine the service protocol (e. It is most popular on Linux, followed by Windows. e. May 4, 2022 · On Mac, Nmap also comes with a dedicated installer. Apr 23, 2023 · Nmap es la herramienta de escaneo más famosa utilizada por los pentesters. 99 seconds Nov 8, 2022 · How to do Stealth Scans with nmap on Linux Techniques for nmap TCP SYN (Stealth) Scans. Es una herramienta de línea de comandos de Linux de código abierto que se Nmapは、このポート一覧表以外にも、逆引きDNS名、OSの推測、デバイスの種類、MACアドレスなどの、調査対象に関するさらに詳細な情報を提供できる。 典型的なNmapスキャンの例を、以下の 例1「Nmapスキャンの典型的な例」に示した。 One is to slow down large scale reconnaissance from tools like Nmap. If Nmap is unable to guess the OS of a machine, and conditions are good (e. Admins can choose from a variety of community-driven NSE scripts or create custom ones themselves. 67. 0/24. nmap 是一種免費且開源的系統及網路掃描工具，他除了在滲透 Jan 6, 2014 · Thankfully there is also a graphical front-end for nmap called zenmap. com Nmap can adapt to network conditions including latency and congestion during a scan. Once finished, it will output results similar to this: Starting Nmap 7. In this comprehensive guide, we’ve explored the installation and usage of the ‘nmap’ command in Linux, a powerful tool for network scanning. Nmap is an open source tool for network security and auditing. This is also the basis for the Nmap man page (nroff version of nmap. If you are running one of the operating systems that are designed for penetration testers such as Kali Linux, Nmap should come with the OS as a pre-installed package. When possible, Nmap also gets the Common Platform Enumeration (CPE) representation of this Nmap obtains some special data at runtime in files named nmap-service-probes, nmap-services, nmap-protocols, nmap-rpc, nmap-mac-prefixes, and nmap-os-db. May 21, 2012 · Nmap was named “Security Product of the Year” by Linux Journal, Info World, LinuxQuestions. On Linux, things are a little trickier as you can choose between a source code install or a number of binary packages Mar 29, 2019 · nmapのインストール. Nmap. It is a free application. After installing Nmap, you can run the nmap command without arguments to display all of its options. It is regularly updated for each release and is meant to serve as a quick-reference to virtually all Nmap command-line arguments, but you can learn even more about Nmap by reading it straight through. Don’t ping-PN With this option Nmap simply don’t ping the target/s $ Nmap works well with most common UNIX operating systems. Conclusion This article explains several Nmap Scans, techniques, knowing the intentions and objectives of every scan, pluses, and minuses over other similar scanning tools, which might be better at escaping from Since 2002, Nmap has offered IPv6 support for its most popular features. Before it, users must ensure that the “nmap” command is installed in the operating system. How to use the ssl-enum-ciphers NSE script: examples, script-args, and references. Many free operating system distributions (including most Linux and BSD systems) come with Nmap packages, although they may not be installed by default. The command-line here requested that grepable output be sent to standard output with the -argument to -oG. It’s the simplest way to scan a target IP or a range of IPs to find out which hosts are up and running. Because of this popularity and the fact that many Windows users do not have a compiler, binary executables are distributed for each major Nmap release. Aggressive timing (-T4) as well as OS and version detection (-A) were requested. macOS. In this article, we will look at some core features of Nmap along with a few useful commands. sudo nmap localhost. FTP, SSH, Telnet, HTTP), the application name (e. If the argument isn't a zero or hex string, Nmap looks through nmap-mac-prefixes to find a vendor name containing the given string (it is case insensitive). Other than any Linux specific information, like the installation process, this tutorial applies equally to all of the supported platforms. Zenmap is the official Nmap Security Scanner GUI application. The tool helps network administrators reveal hosts and services on various systems. X IP structure, substitute in yours. Basic Nmap scan. Docker allows Nmap to run in a separate, isolated environment, ensuring system-wide stability. Although Nmap is incredibly powerful, when working with larger networks most administrators do not want to work with command line only tools. org ) Nmap scan report for 80. 192. exe) and then follow the onscreen instructions. May 7, 2023 · Nmap cũng có thể kiểm tra tính bảo mật của thiết bị, xác định các lỗ hổng trong mạng của bạn. Nmap (Network Mapper) is an open-source command-line tool in Linux for network exploration and security auditing. sudo nmap -sP -PS22,3389 192. Nmap categorizes the default scripts for making them easier to use. With Nmap as depicted above, you have the ability to scan a single IP, a DNS name, a range of IP addresses, Subnets, and even scan from text files. It uses raw IP packets to determine hosts, services, operating systems, packet filters/firewalls, and other open ports running on the network. Find a partner Work with a partner to get up and running in the cloud. macOSの場合はbrewで一発です。 $ brew install nmap Linuxなどの場合はyumで一発です。 $ sudo yum install nmap nmapのインストール; nmapでポートスキャン. 134. The simple command nmap <target> scans 1,000 TCP ports on the host <target>. In particular, ping scanning (TCP-only), connect scanning, and version detection all support IPv6. microsoft. nmap. Oct 21, 2023 · 10 nmap command uses in Linux 1. at least one open port and one closed port were found), Nmap will provide a URL you can use to submit the fingerprint if you know (for sure) the OS Nmap (« Network Mapper ») è uno strumento open-source per la network exploration e l'auditing. Getting Started with Basic Nmap Scans. This is the output that Nmap sends to the standard output stream by default. Every beginner’s first step into the realm of Nmap starts with the basic scan. 1 -sV: Attempts to determine the version of the service running on port-sV -version-intensity: nmap 192. Nmap or Network Mapper is a tool that helps a lot for security engineers in testing network security controls and discover vulnerabilities, and it helps network engineers troubleshooting various network issues. If a single subnet is being scanned (i. at least one open port and one closed port were found), Nmap will provide a URL you can use to submit the fingerprint if you know (for sure) the OS Oct 7, 2019 · Introduction. 74 seconds Nmap (ang. Figure 12. For the purpose of this article, I will stick to Nmap and will explain the steps for how to troubleshoot a network. Nmap is used to discover free networks around you. krad~> nmap -T4 -sT scanme. On average Nmap sends 5–10 fewer packets per host, depending on network conditions. The command nmap scanme. snmp=admin example. Nmap is a utility for network exploration or security auditing. Port Scanning: It can determine which ports are open and which services are running on those ports, which is critical for security assessments and vulnerability scanning. ARP scanning resolves both problems by putting Nmap in control. 0/24) Nmap may only have to send two packets to most hosts. 1). The user must use the -sS (SYN) flag to do a SYN or stealth scan like the one shown in the previous second picture. Nmap is used for exploring networks, perform security scans, network audit and finding open ports on remote machine. Cuando se ejecutan, los usuarios pueden usarlo para analizar dispositivos en una red y generar un mapa de lo que descubre, escanear máquinas individuales y mucho más. May 11, 2021 · Nmap is one of the most used network mappers out there. sudo nmap [host] For example. Maybe an option to store in a DB. Nmap is a tool used for network mapping and it is one of the most popular ethical hacking tools in the market. 2. Zenmap is the official Nmap Security Scanner GUI. For this example, we will scan the localhost IP address. Cài đặt Nmap trên Linux. Now, let’s explore the technical steps to install Nmap on Fedora 40 or 39 Linux, ensuring you have the necessary knowledge and tools to effectively use this powerful network scanner. 52) Not shown: 994 filtered ports PORT STATE SERVICE 22/tcp open ssh 25/tcp closed smtp 53/tcp open domain 70/tcp closed gopher 80/tcp open http 113/tcp closed auth Nmap done: 1 IP address (1 host up) scanned in 4. When Nmap is used in raw IP mode (--send-ip), Nmap sometimes has to wait several minutes for ARP cache entries to expire before it can continue with host discovery. 220) Not shown: 984 closed ports Port State Service 19/tcp filtered chargen 21/tcp open ftp 22/tcp open ssh 53/tcp open domain 80/tcp open http 111/tcp filtered sunrpc 137/tcp filtered netbios-ns 138/tcp filtered netbios-dgm 139/tcp May 10, 2024 · SWITCH EXAMPLE DESCRIPTION-sV: nmap 192. Jul 14, 2023 · Nmap began as a Linux utility, but it’s now available for all major operating systems, including Windows and macOS. You can also find it in our SVN source code repository. All hosts are assumed up and only host scripts are eligible to run. While targets are usually specified on the command lines, the following options are also available to control target selection: Dec 16, 2020 · Learn how to install and use Nmap, a powerful network scanning tool for security audits and penetration testing. Note that Nmap's OS detection cannot always provide the level of specificity implied by the icons; for example a Red Hat Linux host will often be displayed with the generic Linux icon. 1 -sV -version-intensity 8 Getting started with Nmap Windows or Linux? Use the operating system that works for you. OS icons Nmap accepts multiple host specifications on the command line, and they don't need to be the same type. „ Network Mapper ”) jest narzędziem open source do eksploracji sieci i audytów bezpieczeństwa. If a match is found, Nmap uses the vendor's OUI (three-byte prefix) and fills out the remaining three bytes randomly. Use the Windows self-installer (referred to as nmap-<version>setup. But thanks to OS classification, Nmap can find commonality. May 11, 2024 · If you're looking to run Nmap in a contained environment or you want to run Nmap without installing it directly on your Ubuntu system, Docker is the perfect solution. Install Nmap on Windows. Downloading Nmap. Get the latest Nmap for your system: Windows. g. The primary focus of Nmap development is on free operating systems such as Linux, FreeBSD, NetBSD, and OpenBSD). Doing it backwards lets Nmap employ clever caching algorithms to speed up traces over multiple hosts. net Starting Nmap ( https://nmap. En este artículo, veremos algunas características principales de Nmap junto con algunos comandos útiles. 0048s latency). Find out how to scan hosts, ports, services, OS, and more with nmap in Linux. nmap --script=version 192. È stato progettato per scansionare rapidamente reti di grandi dimensioni, ma è indicato anche per l'utilizzo verso singoli host. org Starting Nmap ( https://nmap. When you first open up Kali Linux, Nmap is ready to use from the terminal. The connection will be terminated by selecting this option. af at zy vm mm zg jz cu ow fw