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Questions tagged [unbound]

Unbound is an open-source DNSSEC validating DNS resolver.

Unbound is an open-source BSD licensed caching DNS resolver developed by NLnet Labs, and is included in FreeBSD & OpenBSD's base installation.

In addition to validation, Unbound implements many enabled-by-default security features including hardening, cache poisoning prevention and zone overrides. Guides are available in the Documentation for configuration, and the underlying libunbound C library.

Documentation: https://www.unbound.net/documentation/index.html

Unbound(8) https://www.unbound.net/documentation/unbound.html

Unbound.conf(5) https://www.unbound.net/documentation/unbound.conf.html

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Unbound DNS - Local-data redirection

I'm running unbound DNS version 1.13.1 (docker image in Ubuntu 20.04) and block ad-sites domain in unbound config. Sample config below. local-zone: "sitename.com" redirect local-data: "sitename.com A 127.0.0.1" As of now, after adding the new…
Akshay
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Investigate huge recursion delay with Unbound

I am running a recursive DNS resolver with unbound 1.9.0 on Debian Stretch. It periodically logs statistics about the recursion procession times. The latest is: [2195:0] info: server stats for thread 0: 157732 queries, 87671 answers from cache,…
user2233709
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How to whitelist domain in Unbound

I know that sometimes false positive can happen when using public blocklists, that way I want to import/create whitelist to make sure not to block them. I've already checked manual from Unbound and searched but unfortunately didn't found the right…
user134969
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Putting a caching nameserver in front of ad

I would like to set up a caching nameserver to meet some requirements in the datacenter. Some of these requirements make me to put this caching nameserver between my servers and AD (e.g. collecting some statistics, managing whole dns things at one…
Çiçek Adam
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Unbound DNS (Redirection of LAN)

I'm trying to redirect my LAN queries to local DNS server (installed in LAN) instead of default DNS ie 8.8.8.8. I'm using unbound 1.13.1 and tried the following: tried localzone local-zone: "10.in-addr.arpa." transparent domain-insecure:…
Akshay
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Centos - Unbboud and URIBL_BLOCKED blacklist

I am facing the following problem: My websites have contact forms. People reach out to me via contact form. I receive 1 email after every contact form sent. Since about 1 week Ms Outlook is marking my own emails (sent from my websites) as spam. The…
Pikk
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Unbound error - unbound.service: Start request repeated too quickly

I am new using unbound. I have a network 192.168.50.1 to 192.168.50.240. And I'd like to use DoH for non cache data. my conf file: # Unbound configuration file for Debian. # # See the unbound.conf(5) man page. # # See…
RGS
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Unbound not returning A records over IPv6

I recently replaced my pfSense installation with OPNsense and have been struggling a bit with the Unbound installation. In short, it's IPv6 enabled and everything works well (both IPv6 and IPv4) in general. However, it seems to struggle with DNS…
vpetersson
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Fallback to forwarding with Unbound?

I'm using Unbound on an internal network What I want it to do is as follows: If a local_zone matches, return from there If not and it matches the internal domain name, then try forwarding to Consul on 127.0.0.1:8600 If not, then forward to…
starbeamrainbowlabs
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Docker Container DNS slow (~ 4 seconds) with DNS resolver as container

DNS resolution inside all of my Docker containers is consistently slow (slightly more than 4 seconds). From the host, DNS queries are fast, as well as on the rest of my network. I must admit I did not try many things up until now because googling…
DeBaum
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Unbound : what capacity will i need on drive?

I'm planning to set up my own dns server (for a cybercafe, 30 computers) what size will unbound need on hdd after months of use ? Mb, Gb, Tb ?
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