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+++ This bug was initially created as a clone of Bug #2018806 +++
On a system without openssl installed, the unbound-keygen keygen service will fail:
# systemctl status unbound-keygen.service
● unbound-keygen.service - Unbound Control Key And Certificate Generator
Loaded: loaded (/usr/lib/systemd/system/unbound-keygen.service; disabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Sun 2021-10-31 11:28:45 UTC; 2min 16s ago
Process: 294605 ExecStart=/usr/sbin/unbound-control-setup -d /etc/unbound/ (code=exited, status=1/FAILURE)
Main PID: 294605 (code=exited, status=1/FAILURE)
Oct 31 11:28:45 vwb01-00.srv.example.net systemd[1]: Starting Unbound Control Key And Certificate Generator...
Oct 31 11:28:45 vwb01-00.srv.example.net unbound-control-setup[294605]: setup in directory /etc/unbound/
Oct 31 11:28:45 vwb01-00.srv.example.net unbound-control-setup[294605]: generating unbound_server.key
Oct 31 11:28:45 vwb01-00.srv.example.net unbound-control-setup[294605]: /usr/sbin/unbound-control-setup: line 100: openssl: command not found
Oct 31 11:28:45 vwb01-00.srv.example.net unbound-control-setup[294605]: /usr/sbin/unbound-control-setup fatal error: could not genrsa
Oct 31 11:28:45 vwb01-00.srv.example.net systemd[1]: unbound-keygen.service: Main process exited, code=exited, status=1/FAILURE
Oct 31 11:28:45 vwb01-00.srv.example.net systemd[1]: unbound-keygen.service: Failed with result 'exit-code'.
Oct 31 11:28:45 vwb01-00.srv.example.net systemd[1]: Failed to start Unbound Control Key And Certificate Generator.
# rpm -qi unbound
Name : unbound
Version : 1.7.3
Release : 17.el8
Architecture: x86_64
Install Date: Sun Oct 31 11:11:01 2021
Group : Unspecified
Size : 5344276
License : BSD
Signature : RSA/SHA256, Mon May 17 16:12:40 2021, Key ID 05b555b38483c65d
Source RPM : unbound-1.7.3-17.el8.src.rpm
Build Date : Mon May 17 15:16:07 2021
Build Host : x86-02.mbox.centos.org
Relocations : (not relocatable)
Packager : CentOS Buildsys <bugs>
Vendor : CentOS
URL : https://www.unbound.net/
Summary : Validating, recursive, and caching DNS(SEC) resolver
Description :
Unbound is a validating, recursive, and caching DNS(SEC) resolver.
The C implementation of Unbound is developed and maintained by NLnet
Labs. It is based on ideas and algorithms taken from a java prototype
developed by Verisign labs, Nominet, Kirei and ep.net.
Unbound is designed as a set of modular components, so that also
DNSSEC (secure DNS) validation and stub-resolvers (that do not run
as a server, but are linked into an application) are easily possible.
It should have a dependency on it
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (Moderate: unbound security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHSA-2022:8062