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why we use command line console 0 and what 0 is representing

by Zena Haley III Published 3 years ago Updated 2 years ago

The use of "line console 0" command is to connect a switch/router through medium console. If there is only one console port, you can only choose "line console 0". However if you have more than the number goes as 1,2,3,4 You can set different or same password to all your console ports. Click to see full answer.

Full Answer

What is the use of line console 0?

The use of "line console 0" command is to connect a switch/router through medium console. If there is only one console port, you can only choose "line console 0". However if you have more than the number goes as 1,2,3,4 ...

What does the string {0} mean in the console?

{0} is a format string parameter. Hello World! to the Console. Note, that in your example, the code reads {0] instead of {0} and you are also missing an argument for the intended parameter. In my example, the string "World" is the argument for the {0} format parameter).

How many views does line console 0 have?

Line console 0 command 3761 Views 0 Helpful 4 Replies dbarboza27 Beginner Mark as New Bookmark Subscribe Mute Subscribe to RSS Feed Permalink Print Email to a Friend Report Inappropriate Content ‎05-10-201002:39 PM ‎05-10-201002:39 PM Line console 0 command Hi,

How do I use command-line arguments in a console application?

The following example shows how to use command-line arguments in a console application. The application takes one argument at run time, converts the argument to an integer, and calculates the factorial of the number. If no arguments are supplied, the application issues a message that explains the correct usage of the program.

What does it mean line console 0?

The use of "line console 0" command is to connect a switch/router through medium console. If there is only one console port, you can only choose "line console 0". However if you have more than the number goes as 1,2,3,4 ... You can set different or same password to all your console ports.

What is the use of line console 0 in Cisco?

console 0 is the physical console port on the switch/router you plug into. line vty is when you remote into the switch/router via telnet or ssh. the config-line is letting you know you are currently in configuration mode for that specific line.Mar 21, 2017

What does the command line Vty 0 1 mean?

What does the command line vty 0 1 mean? The "0 1" represents the number of vty lines to which the following configu- ration parameters will be applied. The two virtual terminal connections are identified as 0, 1.

What does line console command do?

The line command can configure: The router's console port (CTY) The router's asynchronous ports (TTYs), used for dial-in and dial-out modem connections. The router's auxiliary port (AUX), used for backup modem connections.

What is the purpose for command exec timeout 0 0?

The example also show the exec-timeout 0 0 command. This means that on the console port will never timeout. The default for this command is exec-timeout 10 0 which means that the console line will logoff when inactivity at this line reaches 10 minutes.Jun 2, 2009

What is the difference between line Vty 0 4 and line Vty 0 15?

VTY lines are usually used for creating out-of-band management sessions to devices. If a password is not supplied on a vty line, that line cannot be used for managing the device. In some cases administrators may decide to let junior staff to use lines 0 - 4 and senior staff to use lines 5 - 15.

Why do we use line Vty 0 4?

VTY is a virtual port and used to get Telnet or SSH access to the device. VTY is solely used for inbound connections to the device. These connections are all virtual with no hardware associated with them. The abstract “0 – 4” means that the device can allow 5 simultaneous virtual connections which may be Telnet or SSH.

What is the meaning of line Vty 0 15?

What does Vty 0 15 mean? This is a type of zone command, we specify a zone with vty (virtual terminal line) from 0 to 15 (ie every 16 lines). New password command to enter the password to be used for authentication. login command to configure the router to require authentication.Aug 23, 2021

Why is the login command required?

The login command validates the user's account, ensuring authentication, logins enabled properly, and correct capacity for the port that is used for the login. The login command verifies the user's identity by using the system defined authentication methods for each user.

What is no IP domain lookup command?

No IP Domain Lookup Command is one of basic commands of IOS which can be used again and again during working with the CLI of a router or switch. The No IP Domain Lookup Command tells the router not to search any wrong words typed in the CLI.Sep 4, 2019

What does console mean on a router?

The console port on the router is an EIA/TIA-232 asynchronous, serial connection with no flow control and an RJ-45 connector. The console port is used to access the router and is located on the front panel of the Route Processor.

What does no exec mean Cisco?

When you want to allow an outgoing connection only for a line (no incoming) use the no exec command. When a user tries to Telnet to a line with the no exec command configured, the user will get no response when pressing the Return key at the login screen.Sep 30, 2018

What is a command line argument?

Command line arguments are extra commands you can use when launching a program so that the program's functionality will change . Depending on the program, these arguments can be used to add more features that includes specifying a file that output should be logged to, specifying a default document to launch, or to enable features ...

Why are program arguments named command line arguments?

Program's arguments are named command line arguments because they are typically used when you type them within a console, command prompt, or terminal. In a graphical user interface, when you want to move a file from one folder to another, you just drag it. On the other hand if you want to move a file from a console command, ...

Is notepad.exe/s a valid argument?

It is important to note that you must add a space between the program you want to run and the command line argument. For example, notepad. exe/s is not a valid argument because it does not contain a space. Instead you must add a space so it looks like notepad.exe /s.

Can you use command line arguments on a console?

Now, just because they are called command line arguments does not mean they can only be used from a console. For example, in Windows you can modify a shortcut so that it permanently uses a particular argument in order to perform a certain behavior every time you launch the program from the icon. Let's use the above Notepad shortcut as an example.

1. When Unix Was Developed, There Was No GUI

While Linux is not Unix, as it has no code from the system, its behavior is based on it, including its use of the command line. When Unix was developed at Bell Labs in the late '60s and early '70s, there was no such thing as a graphical user interface.

2. Programming Tools Use the Command Line

Programmers have been the staunchest advocates of Linux because it has so many tools for them to get their work done: interpreters, compilers, and debuggers. And all of these tools run on the command line.

3. The Command Line Is Fast

A lot of Linux users love to claim that the Linux command line is faster than using a GUI. Command-line programs start faster than graphical ones because there's less overhead.

4. The Command Line Works Everywhere, Including on Servers

One big reason that the command line has survived on Linux systems is that it works just about everywhere. If X doesn't like your graphics card, a problem that was also more common on early Linux systems, you'll find yourself dumped at the console. This means you can fall back on the command line when you need to.

5. Command-Line Programs Can Be Scripted

One big advantage of command-line programs over graphical ones is that programmers can automate them.

Now You Know Why Linux Uses the Command Line So Much

If you've been baffled by how important the command line is to Linux, you now know how important it is for many technical uses like servers and development. It even puts the computer to work for you instead of the other way around.

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When Unix Was Developed, There Was No Gui

Programming Tools Use The Command Line

  • Programmers have been the staunchest advocates of Linux because it has so many tools for them to get their work done: interpreters, compilers, and debuggers. And all of these tools run on the command line. While you can call all of these from a graphical IDE, it's just a front end to a command line somewhere.
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The Command Line Is Fast

  • A lot of Linux users love to claim that the Linux command line is faster than using a GUI. Command-line programs start faster than graphical ones because there's less overhead. This is one reason that when Linux first debuted on PCs, distributions would default to the console environment. The less powerful PCs of the era would often struggle to run X, at least with the s…
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The Command Line Works Everywhere, Including on Servers

  • One big reason that the command line has survived on Linux systems is that it works just about everywhere. If X doesn't like your graphics card, a problem that was also more common on early Linux systems, you'll find yourself dumped at the console. This means you can fall back on the command line when you need to. For this reason, it's popular to i...
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Command-Line Programs Can Be Scripted

  • One big advantage of command-line programs over graphical ones is that programmers can automate them. If you work with graphical programs such as file managers, you'll often run into repetitive operations like renaming files. If you have a lot of files, this can get tedious with a GUI file manager. The shell lets you use wildcards to generate a list of files. If you wanted to copy al…
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Now You Know Why Linux Uses The Command Line So Much

  • If you've been baffled by how important the command line is to Linux, you now know how important it is for many technical uses like servers and development. It even puts the computer to work for you instead of the other way around. If you're just getting started with the Linux command line and feel lost, read on for more tips on getting the most out of your Linux system …
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