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Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS and DNS-over-HTTPS which allows clients to encrypt their communication. In addition, it supports various modern standards that limit
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Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. If you have any feedback, we would love to hear from you. Don’t hesitate to create an issue on Github or post a message on the Unbound mailing list. You can learn more about Unbound by reading our do...
Make sure you have the C toolchain, OpenSSL and its include files, and libexpat installed. If building from the repository source you also need flex and bison installed. Unbound can be compiled and installed using:
You can use libevent if you want. libevent is useful when using many (10000) outgoing ports. By default max 256 ports are opened at the same time and the builtin alternative is equally capable and a little faster.
All of Unbound's configuration options are described in the man pages, which will be installed and are available on the Unbound documentation page.
An example configuration file is located in doc/example.conf.
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May 5, 2020 · Basic configuration. First find and uncomment these two entries in unbound.conf: interface: 0.0.0.0 interface: ::0. Here, the 0 entry indicates that we'll be accepting DNS queries on all interfaces. If you have more than one interface in your server and need to manage where DNS is available, you would put the address of the interface here.
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Below is a minimal config file. The source distribution contains an extensive example.conf file with all the options. # unbound.conf(5) config file for unbound(8). server: directory: "/etc/unbound". username: unbound. # make sure unbound can access entropy from inside the chroot. # e.g. on linux the use these commands (on BSD, devfs(8) is used):
By default Unbound assumes that a user named “unbound” exists. You can add this user with an account management tool available on your system; on Linux this is usually useradd ). You can also disable this feature by adding username: "" in the configuration file: server: # disable user privilege protection. username: "".
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Unbound runs on FreeBSD, OpenBSD, NetBSD, MacOS, Linux and Microsoft Windows, with packages available for most platforms. It is included in the standard repositories of most Linux distributions. Installation and configuration is designed to be easy.
