Questions tagged [resolv.conf]
/etc/resolv.conf contains Domain Name System(DNS) related configuration information on Unix systems.
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Why do I have to specify the DNS server when doing a forward lookup?
I'm trying to set up a small, private DNS server. I'm using Bind9 and systemd resolved, netplan for managing the network. I've specified the DNS server in both the netplan configuration and /etc/...
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DNS resolution failure when resolv.conf has nameserver value as 127.0.0.1
We have an application hosted in 2 ec-2 instances. In an AWS Route 53 record of A type, the domain is mapped with the IP addresses of those 2 servers. From one of the local VM in our office network, ...
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Kubernetes cluster with incorrect DNS resolution
Question Description:
I have a harvester HCI Cluster (RKE2), where pods do not resolve the correct IP addresses for internet domains.
kubectl run debug --image=busybox -i --tty --rm -- sh
/ # ping ...
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1
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How can I configure my DNS settings on Debian 12?
I'm trying to change my DNS settings on my Debian 12 VPS, and by this I mean, I want to use a public resolver like 1.1.1.1 instead of my VPS host's resolver.
I remember in Debian 11 I could just edit ...
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OpenVPN headless on Debian 11.7 IP does not change
I have a ProtonVPN paid account.
I want to use it on my VPS server (so in headless), to change my ip.
Their client does not work in headless mode, so I use OpenVPN.
I download the Linux config file on ...
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1
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Domain names not resolving on CentOS webserver
I have a small webhosting VPS running CentOS Linux 7.9.2009 (Core).
I'm also running Plesk Obsidian Version 18.0.52
Here is my /etc/resolv.conf file:
nameserver 1.1.1.1
nameserver 8.8.4.4
nameserver ...
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Ubuntu: Netplan dont remove Nameserver
iam running ubuntu 22.04 on hetzner. After changing the nameservers with netplan, the old nameserver still show up resolvectl status and /etc/resolve.conf.
Removing them from resolve.conf does not ...
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747
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How to configure NetworkManager to not set default search domain in RHEL8 based distros?
Assume having a host with single, IPv4 only connection, named ens192, which has statically configured network settings (IP, DNS, gateway), named vm1.example.invalid. NetworkManager will add the ...
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3% of Sendmail Localhost Relays are Deferred
Using Debian 10.3 and Sendmail Version 8.15.2, mail being sent with relay=[127.0.0.1] results in stat=Deferred: Name server: [127.0.0.1]: host name lookup failure. This occurs only 3% of all localhost ...
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"resolvectl dns" empty output
I do on my VPS with Ubuntu 22 server (new, clean setup):
root@vm905709:~# resolvectl dns ens3
Link 2 (ens3):
root@vm905709:~#
(BTW, I did it on the same VPS with Debian and it was the same.)
And ...
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How to configure dnsmasq per interface nameservers from DHCP leases
I am working on an IoT device that has three network interfaces: Ethernet, WiFi, and LTE. The interfaces provide redundancy and fail-over for network connectivity, and any combination of the ...
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2
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1k
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The correct domain settings in /etc/resolv.conf?
Currently I'm trying to configure settings of internal enterprise domain names for virtual SUSE hosts, which OS is SUSE Linux Enterprise Server 12 SP4.
There are two domain names that the SUSE hosts ...
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585
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How to resolve DNS using Network Manager?
I am using Network Manager(nmcli) to establish network connection to a Linux based embedded device. But the client application is having issues connecting to aws backend. In the /etc/NetworkManager/...
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340
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No DNS on PXE booted Linux Live System with NetworkManager
I've built a custom Debian Live CD (using live-boot and containing a kernel, initrd and a filesystem.squashfs) which includes specific tools we regularly use. The Live CD works flawlessly if booted ...
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is there a way on Linux to set DNS servers using a cmd line?
I use a script that creates multiple network interfaces with IP adresses. An example of commands used by the script:
ip addr flush eth0
ip addr flush eth1
ip addr add 192.168.1.10 dev eth0 route add ...
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Shell script to check resolv.conf [closed]
I need to write a shell script which checks the contents of resolv.conf
Eg
domain example.com
search abc.com abc.org abc.net
nameserver 1.1.2.2
nameserver 3.3.4.4
abc.com/abc.org/abc.net can appear ...
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1
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Is it necessary to set a different ttl before change a Route53 DNS record value?
The first time create the Route53 DNS record with a load balancer origin DNS name with ttl 1 day.
After some days, we want to change the value to another load balancer origin DNS name. Do we need to ...
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1
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7k
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/etc/resolv.conf is missing after installation of RHEL 8
I have installed RedHat Enterprise Linux 8.4 (minimal install) on my local server, and got some docker related issues.
Then I found that /etc/resolv.conf was missing.
After executing "systemctl ...
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resolv.conf & systemd-resolved: query next server on domain not found responses
I'm trying to build a simple cascade DNS resolution algorithm for my laptop:
Query the servers provided by DHCP
Not found / failed? Query 8.8.8.8 and it's friends
Not found / failed? Query local ...
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1
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198
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VPS Resolv And Static IP
I have a vps server hosted with an internationally, very well-known hosting provider, and oddly enough they seem disturbingly incapable of troubleshooting their own system.
There are two specific ...
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rhel + resolve.conf + what is the right resolve.conf settings
we want to know what is the right configuration in resolve.conf and about domain name in resolve.conf
in our rhel 7 server we configured the following example of resolve.conf
more /etc/resolv.conf
; ...
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ping: example.org: No address associated with hostname
I am facing a problem I cannot explain:
If I do
ping example.org
I am getting the result
ping: example.org: No address associated with hostname
dig returns an empty result:
dig example.org
; <&...
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1
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789
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Kubernetes through Virtualbox; Pods can't access internet services
System:
VirtualBox, Debian 10 Server, Kubernetes with kubeadm
I've setup a deployment and a service and I am exposing it via NodePort but my Pods somehow cant access the internet. The worker node ...
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1
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Docker cant resolve DNS-Names outside of docker network. Receiving "read from DNS server failed"
I have deployed an Adguard Home docker container which i want to use as my DNS server/proxy.
DNS resolution is working fine when i'm making an nslookup from a machine (as well as the docker host) on ...
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0
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Add DNS options to systemd-resolved /etc/resolv.conf
I am using systemd-networkd and systemd-resolved. I have /etc/resolv.conf being a symlink to /run/systemd/resolve/stub-resolv.conf as recommended.
I guess that /run/systemd/resolve/stub-resolv.conf ...
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2
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dig: parse of /etc/resolv.conf failed
I tried using dig and I got the error in the title.
My /etc/resolv.conf is this
nameserver 67.207.67.2
nameserver 67.207.67.3
nameserver ns1.name.com
nameserver ns2.name.com
nameserver ns3.name.com
...
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How to set options timeout in resolv.conf in docker container?
How (if any) it is possible to add options timeout to /etc/resolv.conf in docker container running in Kubernetes cluster?
The file is generated, so it's not possible to do that in Dockerfile. On the ...
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73
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Fedora network configuration
I've got a Fedora 31 instance configured with an IPv6 stack and that has join an IPA domain.
I've activated the IPv6 stack by editing /etc/sysconfig/network-scripts/ifcfg-eth0
Added
IPV6INIT=yes
...
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2
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Cannot ssh or ping hostname, but dig and nslookup work on Ubuntu 18.04
I updated my kernel this weekend, and now I'm using 5.3.1.
christopher@HAL4:~$ uname -r
5.3.1-050301-generic
I need to login to servers, but I cannot do so by hostname any longer. For example, I ...
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How to set custom settings in resolv.conf when using system-resolvd
I would like to use option values in /etc/resolv.conf.
From reviewing the relevant man page (https://linux.die.net/man/5/resolv.conf) I noticed that I can configure various options.
For example one ...
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HAProxy resolver doesn't work : could not resolve address
I'm on Ubuntu 16.04; I set up HAProxy as an entrypoint to services defined by domain names; those domain names are served by a DNS server (coredns) in the same machine (or VLAN network).
Using ...
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1
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10k
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Host DNS not working with docker container
I have a probleme with docker on my archlinux kernel Linux 4.19.31-1-lts #1 SMP Sun Mar 24 09:29:16 CET 2019 x86_64 GNU/Linux
$ docker info return :
$ docker info ...
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qmail couldn't find any host named [closed]
System:
Ubuntu 18.04 LTS (fresh install)
qmail
dovecot
Plesk 17
Mail configuration was done with plesk.
It is not possible to send any mail to any reciepents on different domains.
Log contains:
...
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1
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1k
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Resolving CoreDNS Loop Error
I am trying to resolve a loop error with CoreDNS as part of a 2-node Kubernetes cluster. The issue is thoroughly documented (below), but I am not strong on dns and networking so am having trouble ...
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638
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Query two different DNS nameservers - one for LAN only, one for everything else
On a Debian-based linux device I need to set up DNS lookups on two different DNS nameservers - one for local domain lookups, one for everything else.
My /etc/resolv.conf currently is:
# Generated by ...
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0
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885
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Linux DNS resolve rotate attempts does not take effect
I have rotate and attempts settings in my resolv file:
nameserver 127.0.0.1
nameserver 10.104.64.25
nameserver 10.104.65.25
options timeout:1 attempts:3 rotate
And OS info is:
Linux 152a580f-e3c2-...
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Linux DNS query sequence with resolv.conf
I have a encountered a DNS resolution issue. Could someone pls give me some tips on this issue, thanks in advance~
uname -a
Linux 152a580f-e3c2-405f-acde-eac4d928af22 4.4.0-111-generic #134~14.04.1-...
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Custom resolv.conf file
Is there any way I can specify a custom resolv.conf file (instead of /etc/resolv.conf) in RedHat Linux, similar to specifying custom hosts file via export HOSTALIASES=~/my_hosts? I don't have root ...
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Using custom DNS in VPN to resolv domains to different server
What I have is simple but I got a VPN issue that I don't know how to solve. In general I want to route public domains differently within a VPN. See the current role of a Debian host:
A public ...
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2
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Can't connect to Internet while F5 VPN is connected
I'm using F5 BIG-IP Edge VPN client on OS X Yosemite 10.10 and trying to find the best way to access the web, while connected
Has anyone found a solution, how to make it work? Maybe this could be an ...
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1
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170
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Using custom etc/resolv.conf for deployed virtual servers?
Saw that cloudflare is now powering their own set of DNS servers https://developers.cloudflare.com/1.1.1.1/setting-up-1.1.1.1/linux/
We are running a couple dozen debian systems.
Anyone used a ...
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Not possible to update resolv.conf
I edit /etc/resolvconf/resolv.conf.d/base:
$ cat /etc/resolvconf/resolv.conf.d/base
nameserver 192.168.100.16
I force an update:
$ sudo resolvconf -u
I check if it worked:
$ cat /etc/resolv.conf ...
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Why are my dns options specified in /etc/network/interfaces not parsed by resolvconf?
I have a Ubuntu 14.04 server which has two IP addresses specified on a single interface. They are defined in /etc/network/interfaces like so:
auto em1
iface em1 inet static
address 192.168.1.2
...
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Where is the "search" line in my resolv.conf coming from?
This is what my resolv.conf looks like:
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
...
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Prevent additional DNS queries when "search" is not set
The host in question is running Arch Linux with hostname set to foo.example.org. There is no search directive in /etc/resolv.conf.
If I ping example.com or curl example.com or wget example.com (...
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14k
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NetworkManager & dnsmasq - ignore auto DNS settings
I'm running Arch Linux with NetworkManager and dnsmasq set up. It all seems to work fine, except that I try to use the new CloudFlare 1.1.1.1 DNS, but the resolver keeps using the DNS that is ...
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1
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SUSE 11 SP4 resolver doesn't query nameservers
My resolver is not querying the nameserver.
This command is running the background
tcpdump -n -s 0 port 53 &
Resolver points to files then dns
# grep hosts /etc/nsswitch.conf
hosts: files ...
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2
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571
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Does linux accept a DNS reply that comes after configured timeout if it is in the middle of the next attempt?
/etc/resolv.conf is configured with:
options timeout:1 attempts:5 rotate
nameserver A
nameserver B
Both configured nameservers have a delay of 3 seconds. The following exchange of messages occurs:
...
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1
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2k
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Unexpected behaviour of 'attempts' option in /etc/resolv.conf
I'd like Linux to make only one request to DNS server, wait for 5 sec timeout and then abort the lookup if no answer.
To do this I set the following options in /etc/resolv.conf assuming that attempts ...
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0
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26
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Solaris 10 app server operating on two company domains
I have a Solaris server hosting Apache and Tomcat web servers, it originally operated on one company domain:
appname1.company1.com
With a change in company, this original domain must still be ...
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