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In nf the sysadmin configures what name resolution services for this system should be. Think of OS name resolution like an umbrella. In this scenario, DNS is not involved at all.
#Centos 7 static ip local access how to#
You instead described how to configure local name resolution on a Linux host through /etc/hosts. I’m sad to say that in above article you did not describe DNS at all. That’s it! Do share any additional thoughts or questions about this topic with us, via the comment section below.
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Useful ‘host’ Command Examples for Querying DNS Lookups.8 Linux Nslookup Commands to Troubleshoot DNS (Domain Name Server).Setup a Basic Recursive Caching DNS Server and Configure Zones for Domain.
#Centos 7 static ip local access install#
![centos 7 static ip local access centos 7 static ip local access](https://www.linglom.com/wp-content/uploads/2017/03/Configure-static-IP-address-on-CentOS-7-02.png)
Next, test if everything is working well as expected, using the ping command from Host 1, you can ping Host 2 using it domain name like so. Then add the lines below to the end of the file as shown in the screen shot below. Now open the /etc/hosts file using your editor of choice as follows $ sudo vi /etc/hosts $ cat /etc/nfĬheck Name Service Switch Configure DNS Locally Using /etc/hosts File in Linux In this scenario, we want to query the “ files” service. But if DNS is before files then the domain lookup process will consult DNS first before any other appropriate services or files. The configuration is based on order if files is before dns it means the system will query the /etc/hosts file before checking DNS for name service requests. It provides Name Service Switch functionality which controls the order in which services are queried for name service lookups. Understanding Name Service Switch in Linuxīefore moving any further, you should understand a few things about another important file that is /etc/nf. Therefore ensure that you have set static IP addresses for your Linux hosts or nodes running other operating systems.įor the purpose of this article, we will be using the following domain, hostnames and IP addresses (use values that apply to your local setting). This is useful for testing websites changes or the SSL setup before taking a website publicly live.Īttention: This method will only work if the hosts have a static IP address.
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The /etc/hosts is an operating system file that translate hostnames or domain names to IP addresses. This article explains, how to setup a local DNS using the hosts file (/etc/hosts) in Linux systems for local domain resolution or testing the website before taking live.įor example, you may want to test a website locally with a custom domain name before going live publicly by modifying the /etc/hosts file on your local system to point the domain name to the IP address of the local DNS server you configured. DNS ( Domain Name System or Service) is a hierarchical decentralized naming system/service that translates domain names into IP addresses on the Internet or a private network and a server that provides such a service is called a DNS server.