• Home
  • Archive
  • Tools
  • Contact Us

The Customize Windows

Technology Journal

  • Cloud Computing
  • Computer
  • Digital Photography
  • Windows 7
  • Archive
  • Cloud Computing
  • Virtualization
  • Computer and Internet
  • Digital Photography
  • Android
  • Sysadmin
  • Electronics
  • Big Data
  • Virtualization
  • Downloads
  • Web Development
  • Apple
  • Android
Advertisement
You are here: Home » sudo: unable to resolve host HP Cloud Instance Fix

By Abhishek Ghosh January 5, 2015 7:40 am Updated on January 5, 2015

sudo: unable to resolve host HP Cloud Instance Fix

Advertisement

After typing sudo su command, on SSH we can receive the error output sudo: unable to resolve host on HP Cloud Instance. Here is How To Fix. First you need to set Ingress-Egress Policies rightly on HP Helion Public Cloud and set the Router and Subnet rightly to properly do SSH. If you can do SSH with the Private Key and command like ssh -i YOUR-KEY.pem ubuntu@YOUR-IP, then your setup is fully right from the point of SSH. You need not to fight with the security settings.

 

sudo: unable to resolve host HP Cloud Instance Fix – Basics

 

There is a file on your Linux instance on HP Helion Cloud – it called the Hosts file. While spinning up the instance, OpenStack Neutron, one line is not injected on the build. That is why you get the error. We are describing the method for Ubuntu (14.04 LTS), you should double check the official documentation for Other Linux Distros for the location of this Hosts file.

We are assuming that, abhishek-ghosh is your instance’s name. In that case, if you open this file /etc/hostname you’ll notice the name. If you change it to, for example; dr-abhishek-ghosh, for dedicated and non-OpenStack non-Cloud instances, a simple reboot after editing will change the instance’s name. However, you should not change it on HP Cloud as you might difficult to control. This was injected while you created the instance. This file need not to be Edited to resolve the error sudo: unable to resolve host.

Advertisement

---

Second file is /etc/hosts. It will have content like this :

Vim
1
2
3
4
5
6
7
127.0.0.1       localhost
 
# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

We will edit this file in one command in very funny way.

sudo- unable to resolve host HP Cloud Instance Fix

Image used is from www.tecmint.com for decorating this article.

 

sudo: unable to resolve host HP Cloud Instance Fix – Steps

 

Run sudo su - to get root privilege. You will get error. No worries. This will be the last time to get the error.
Simply run this command in SSH then :

Vim
1
echo $(hostname -I | cut -d\  -f1) $(hostname) | sudo tee -a /etc/hosts

It will resolve the problem. We have used UNIX Pipes on the command. If you are interested, you can read about UNIX cut, grep commands too.

Essentially, we have echoed the real hostname (abhishek-ghosh was the example), the command has written one line on /etc/hosts file. It is for Ubuntu, if your Linux distort has different location of Hosts file, changing the last part will work :

Vim
1
2
echo $(hostname -I | cut -d\  -f1) $(hostname) | sudo tee -a /path/to/hosts
# /path/to/hosts is an existing path

It has added something like this :

Vim
1
127.0.1.1   abhishek-ghosh

in /etc/hosts file with instance name of abhishek-ghosh as example. Although we have asked to check your disto, it is likely that your distro will have the same path too – /etc/hosts. You can run whereis hosts or locate hosts to find on SSH. Ting.

Tagged With azure sudo su unable to resolve host , hp cloud error windows resource protected

This Article Has Been Shared 782 Times!

Facebook Twitter Pinterest

Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

Here’s what we’ve got for you which might like :

Articles Related to sudo: unable to resolve host HP Cloud Instance Fix

  • Google Cloud Storage – Benefits

    Google Cloud Storage has certain benefits over other Cloud Storage service providers. Let us have a look on the plus points of using Google Cloud Storage.

  • Cloud IaaS aka Cloud Hosting : The Question is Scalability

    Cloud IaaS which is, in most cases synonymous to Cloud Hosting, has differences, regardless of the pricing, which are important to run site or for business.

  • Permissions and Identities in the Cloud

    Permissions and Identities in the Cloud is among the core components of a cloud computing platform. This guarantee installation and manageability of identities.

  • Basic Guide to Use Rackspace Cloud Server

    Basic Guide to Use Rackspace Cloud Server explains & guides how to get started with unmanaged Rackspace Cloud Server and use it effectively for cost reduction.

  • Solarwinds Virtualization Manager and Other Tools

    Solarwinds Virtualization Manager is one of the remarkable software among their network, applications, virtualization and storage management softwares.

Additionally, performing a search on this website can help you. Also, we have YouTube Videos.

Take The Conversation Further ...

We'd love to know your thoughts on this article.
Meet the Author over on Twitter to join the conversation right now!

If you want to Advertise on our Article or want a Sponsored Article, you are invited to Contact us.

Contact Us

Subscribe To Our Free Newsletter

Get new posts by email:

Please Confirm the Subscription When Approval Email Will Arrive in Your Email Inbox as Second Step.

Search this website…

 

Popular Articles

Our Homepage is best place to find popular articles!

Here Are Some Good to Read Articles :

  • Cloud Computing Service Models
  • What is Cloud Computing?
  • Cloud Computing and Social Networks in Mobile Space
  • ARM Processor Architecture
  • What Camera Mode to Choose
  • Indispensable MySQL queries for custom fields in WordPress
  • Windows 7 Speech Recognition Scripting Related Tutorials

Social Networks

  • Pinterest (24.3K Followers)
  • Twitter (5.8k Followers)
  • Facebook (5.7k Followers)
  • LinkedIn (3.7k Followers)
  • YouTube (1.3k Followers)
  • GitHub (Repository)
  • GitHub (Gists)
Looking to publish sponsored article on our website?

Contact us

Recent Posts

  • What is an Automatic Ethanol Fireplace February 8, 2023
  • Disadvantages of Cloud-Native Computing February 7, 2023
  • Projector Screen Basics February 6, 2023
  • What is Configuration Management February 5, 2023
  • What is ChatGPT? February 3, 2023

About This Article

Cite this article as: Abhishek Ghosh, "sudo: unable to resolve host HP Cloud Instance Fix," in The Customize Windows, January 5, 2015, February 8, 2023, https://thecustomizewindows.com/2015/01/sudo-unable-resolve-host-hp-cloud-instance-fix/.

Source:The Customize Windows, JiMA.in

PC users can consult Corrine Chorney for Security.

Want to know more about us? Read Notability and Mentions & Our Setup.

Copyright © 2023 - The Customize Windows | dESIGNed by The Customize Windows

Copyright  · Privacy Policy  · Advertising Policy  · Terms of Service  · Refund Policy

We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
Do not sell my personal information.
Cookie SettingsAccept
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
CookieDurationDescription
cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
SAVE & ACCEPT