Question: What is the ETC Hosts file and what does it do?

What happens if you delete etc hosts?

2 Answers. When you remove the line you can’t resolve the Hostname slave1-machine to a IP Address anymore. Linux looks into the /etc/hosts before triyng to resolve a hostname via a DNS Query. So if you remove the Line.

Can I delete the hosts file?

To delete Windows Hosts file entries select the whole line and press the delete button on the keyboard. You may also add # in front of any line to make it a comment so that it is not processed but preserved. To edit individual entries click in the line of the mapping that you want to edit and make the changes.

What is the use of ETC hosts in Linux?

In Linux, /etc/hosts is a file used by the operating system to translate hostnames to IP-addresses. It is also called the ‘hosts’ file. By adding lines to this file, we can map arbitrary hostnames to arbitrary IP-addresses, which then we can use for testing websites locally.

Is ETC Hosts necessary?

Using the /etc/hosts file to give a human readable name to a local system within a desktop environment is perfectly reasonable. The hosts file is great to use in a home network or even in a small business environment. This cannot be public side like internet addressing — then you need DNS.

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What does host file do?

The hosts file is a Windows system file that can override DNS and redirect URLs or IP addresses to different locations. A typical home internet user will not have a modified hosts file.

How recover deleted hosts file?

To reset the Hosts file back to the default yourself, follow these steps: Click Start, click Run, type Notepad, and then click OK. On the File menu, select Save as, type “hosts” in the File name box, and then save the file to the desktop. Select Start > Run, type %WinDir%System32DriversEtc, and then select OK.

Do I have to reboot after changing hosts file?

You don’t need to reboot. Any changes you make to the hosts file are immediate. You used to need to reboot for changes to take effect in Windows 9x.

What is C : Windows System32 drivers etc hosts?

The hosts file is a plain text file used to map host names to IP addresses. On Windows, it is located in the C:WindowsSystem32driversetc folder. Note that the “Hosts” file is owned by the “System” account [NT AUTHORITY/SYSTEM] and may only be modified by an administrator.

What is ETC Linux?

ETC is a folder which contain all your system configuration files in it. Then why the etc name? “etc” is an English word which means etcetera i.e in layman words it is “and so on”.

What should be in etc hostname?

4 Answers. /etc/hostname contains name of the machine, as known to applications that run locally. /etc/hosts and DNS associate names with IP addresses. myname may be mapped to whichever IP address the machine can access itself, but mapping it to 127.0. 0.1 is unæsthetic.

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What is the difference between resolv conf and etc hosts file?

conf: Lists nameservers that are used by your host for DNS resolution. If you are using DHCP , this file is automatically populated with DNS record issued by DHCP server. /etc/hosts/: It is just a static lookup method for resolution.