Linux temporary failure resolving

Temporary failure resolving ubuntu

Ubuntu fetch errors in apt-get update “Temporary failure resolving”.

En error appears when we use the command:

Errors

Err:1 http://mirror.serverius.net/ubuntu focal InRelease
Temporary failure resolving ‘mirror.serverius.net’
Err:2 http://security.ubuntu.com/ubuntu focal-security InRelease
Temporary failure resolving ‘security.ubuntu.com’
Err:3 http://mirror.serverius.net/ubuntu focal-updates InRelease
Temporary failure resolving ‘mirror.serverius.net’
Err:4 http://mirror.serverius.net/ubuntu focal-backports InRelease
Temporary failure resolving ‘mirror.serverius.net’
Reading package lists… Done
W: Failed to fetch http://mirror.serverius.net/ubuntu/dists/focal/InRelease Temporary failure resolving ‘mirror.serverius.net’
W: Failed to fetch http://mirror.serverius.net/ubuntu/dists/focal-updates/InRelease Temporary failure resolving ‘mirror.serverius.net’
W: Failed to fetch http://mirror.serverius.net/ubuntu/dists/focal-backports/InRelease Temporary failure resolving ‘mirror.serverius.net’
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/focal-security/InRelease Temporary failure resolving ‘security.ubuntu.com’
W: Some index files failed to download. They have been ignored, or old ones used instead.

Solution

Perhaps this is a temporary problem with your provider’s DNS server.

We can add Google Public DNS server to our system as a temporary solution:

Источник

Обновлению apt-get не удается получить файлы, ошибка «Устранение временного сбоя…»

Это то, что я вижу, когда пытаюсь бежать sudo apt-get update . Я сделал обновление на моем экземпляре вчера и сейчас испытываю это.

обзор

Ваш вопрос состоит из двух частей:

• исправление сообщений временного разрешения
• решение проблем управления пакетами

Временное решение

Вполне вероятно, что эта проблема либо:

• временно из-за того, что ваш интернет-провайдер неправильно перенаправляет интернет-имена (DNS) на свои или на внешние DNS-серверы, или
• из-за изменений в вашей сети аналогичным образом заблокировано это наименование — например, новый маршрутизатор / модем, перенастроивший коммутатор с новой конфигурацией.

Давайте посмотрим на возможные проблемы с DNS.

Сначала временно добавьте известный DNS-сервер в вашу систему.

Тогда беги sudo apt-get update .

Если это исправляет ваши временные разрешающие сообщения, то либо подождите 24 часа, чтобы узнать, решит ли ваш провайдер проблему для вас (или просто обратитесь к вашему провайдеру), либо вы можете добавить DNS-сервер в вашу систему:

8.8.8.8 это собственный DNS-сервер Google.

Другим примером DNS-сервера, который вы можете использовать, является OpenDNS — например:

вопросы управления пакетами

В дополнение к временным проблемам разрешения — у вас есть несколько проблем с управлением пакетами, которые необходимо исправить — я предполагаю, что вы недавно пытались обновить одну версию Ubuntu до следующей рекомендуемой версии — в вашем случае с Natty (11.04) до Онейрик (11.10)

Откройте терминал и введите

Найдите в списке строки с другим именем дистрибутива, чем вы ожидали — в вашем случае — вы выполнили обновление, oneiric но у вас есть другое имя выпуска. natty

Например, ищите строки, которые выглядят как deb http:/archive.canonical.com/ natty backports

Добавьте a # в начало строки, чтобы закомментировать — например,

#deb http:/archive.canonical.com/ natty backports

Сохраните и повторно запустите:

Вы не должны иметь больше ошибок именования релизов.

На момент написания этого, возможные общие имена релиза включают в себя lucid , maverick , natty , oneiric , precise , quantal , raring , saucy , trusty , utopic и vivid .

Обратите внимание, что этот ответ был написан для старых версий Ubuntu. В текущих версиях используется локальный сервер имен, управляемый D-Bus, для которого применяется диагностическая часть этого ответа, но не решение. Если /etc/resolv.conf содержит nameserver 127.0.1.1 или в более общем смысле nameserver 127.X.Y.Z , не изменяйте его.

«Устранение временного сбоя…» означает, что ваш DNS , т. Е. Перевод имен хостов в IP-адреса, не работает. Вы недавно что-то перенастроили на своей машине? Если нет, это может быть временная ошибка у вашего интернет-провайдера.

ping -n 8.8.8.8 Показывает ли линии как 64 bytes from 8.8.8.8: … ? (Нажмите Ctrl +, C чтобы остановить ping .)

Источник

Ubuntu 16.04 Server updates — Temporary failure resolving ‘ro.archive.ubuntu.com’ [duplicate]

Fresh install of Ubuntu 16.04 Server tty1

When I try to use sudo apt-get update , this shows up:

I ran nslookup google.com :

Now, I tried all I could find on the internet about this issue, like adding Google DNS server in /etc/resolv.conf , then dpkg-reconfigure etc. Nothing worked.

If you need any additional info in helping me resolve this problem I am happy to provide. I’m new to Ubuntu so I don’t really know much. Any additional help is welcome.

Thank you in advance!

2 Answers 2

In my case it worked to set the Google DNS (8.8.8.8) in /etc/resolvconf/resolv.conf.d/base

After this procedure I was able to resolve hostnames and

is doing the job well!

I had a similar experience, wherein a complete shutdown (even removing the power cord and waiting long enough for firmware to clear, etc. Then restarting solved the same issue for me.

My only theory as to why, is that it could be some sort of caching issue on the NIC itself.

Since the NIC on this motherboard (Z87) is integrated, stuff like the ARP cache, preferred DNS servers list, etc. are likely cached in PRAM. (again, I am just speculating here.)

Since I had made a change to the DNS servers list (and I believe that’s what ultimately resolved this issue) I think it took the hard start to get the new list into the cache. At any rate, the hard start solved it, whereas soft resets did not.

Источник

Docker: Temporary failure resolving ‘deb.debian.org’

I have a Rails application that I want to deploy using Docker on an Ubuntu server. I have the Dockerfile for the application already set up, right now I want to view the nginx conf in its container.

I ran the command below to start an nginx container in an interactive mode:

Right now I am trying to install nano editor in order to view the configuration for nginx configuration ( nginx.conf ) using the commands below:

However, when I run the first command apt-get update , I get the error below:

I have checked very well it has nothing to do with network connectivity. I would need some help. Thank you.

11 Answers 11

I simply restarted docker and this worked for me.

sudo service docker restart or sudo /etc/init.d/docker restart

Prior to bumping into this issue, docker was working fine. If you never had docker working in the first place, you probably have a different issue.

If you have VPN running, stop it and try again. It solved for me!

Perhaps the network on the VM is not communicating with the default network created by docker during the build (bridge), so try «host» network :

Here’s how I solved it:

Start the docker container for the application in an interactive mode, in my case it an nginx container :

Run the command below to grant read permission to the others role for the resolv.conf file:

Note: If you are having this issue on your host machine (Ubuntu Linux OS) and not for the Docker containers, then run the same command adding sudo to it in the host machine terminal:

Endeavour to exit your bash interactive terminal once you run this:

And then open a new bash interactive terminal and run the commands again:

Everything should work fine now.

I hope this helps

Specyfying own DNS server for docker containers helped me.

Create a /etc/docker/daemon.json file with this content:

and restart the docker service:

Under Debian, as root, I’ve ran:

This solved the issue for me.

Then build and run the container again.

I easily resolved it via:

Please also confirms /etc/sysctl.conf

sudo sysctl -p /etc/sysctl.conf

I had a similar issue, I tried many suggested solutions, but my issue was gone after I rebooted y VM.

I had the same problem and in my case it was file access control.

I uses extended acls on the docker root folder and did not realize it, because they where inherited from the folder above (stupid idea to test docker in a «scratch» directory where permissions are set via extended acls).

This lead to the situation that «/etc/resolv.conf» had setting «640» inside the running docker container with a «+» marking the extended acls. But the image did not have extended acls installed and could not handle it.

The weird thing was that, as far as I can see, all other network tools worked (e.g. ping ) but only apt could no access the DNS resolver.

After removing the extended acls from the docker root and setting the usual acls, everything worked inside the running container.

Similar to the answer of «Promise Prestion», but solved permanently for new containers, too.

Источник

apt-get update fails to fetch files, “Temporary failure resolving …” error

This is what I’m seeing when I try to run sudo apt-get update . I did an update on my instance yesterday and am now experiencing this.

17 Answers 17

overview

There are two parts to your question:

• fixing temporary resolve messages
• fixing the package management issues

Temporary resolve

It is likely that this issue is either:

• temporary due to your Internet Service Provider not correctly forwarding internet naming (DNS) to either its or external DNS servers, or
• due to a change in your network has similarly blocked this naming — for example, new router/modem, reconfiguring a switch with a new configuration.

Lets look at the possible DNS resolving issues.

First, temporarily add a known DNS server to your system.

Then run sudo apt-get update .

If this fixes your temporary resolving messages then either wait for 24 hours to see if your ISP fixes the issue for you (or just contact your ISP) — or you can permanently add a DNS server to your system:

8.8.8.8 is Google’s own DNS server.

Another example DNS server you could use is OpenDNS — for example:

package-management issues

In addition to the temporary resolve issues — you have a few package management issues that need to be corrected — I’m assuming you have tried recently to upgrade from one Ubuntu version to the next recommended version — in your case from Natty (11.04) to Oneiric (11.10)

Open a terminal and type

Look for lines that have your a different distribution name in the list than you were expecting — in your case — you have upgraded to oneiric but you have another release name natty

For example, look for lines that look like deb http:/archive.canonical.com/ natty backports

Add a # to the beginning of the line to comment it out — for example

#deb http:/archive.canonical.com/ natty backports

You should not have any more release naming errors.

At the time of writing this, possible common release names include lucid , maverick , natty , oneiric , precise , quantal , raring , saucy , trusty , utopic and vivid .

You can comment the unresolved repo from the file sources.list found on dir /etc/apt/

After modifying the sources.list, clean the apt-get repo as

The error will gone away

Note that this answer was written for old versions of Ubuntu. Current versions use a local nameserver controlled by D-Bus, for which the diagnosis part of this answer applies, but not the solution. If /etc/resolv.conf contains nameserver 127.0.1.1 or more generally nameserver 127.X.Y.Z , don’t modify it.

“Temporary failure resolving …” means that your DNS, i.e. the translation from host names to IP addresses, is not working. Did you reconfigure something on your machine recently? If not, this may be a transient error at your ISP.

Does ping -n 8.8.8.8 show lines like 64 bytes from 8.8.8.8: … ? (Press Ctrl + C to stop ping .)

Источник