Loop: A DNS implementation

Loop DNS nameserver and utilities

Loop implements a DNS nameserver that can run as an authoritative DNS server, as a caching recursive resolver, or with both functions. It supports DNSSEC, dynamic updates, fine-grained threat-protection policies, live administration, detailed observability, and a complete DNS operations toolset. It can run independently or be managed centrally by Akira. Loop also includes DNSSEC signing and management utilities, DNS diagnostic clients, a dynamic DNS UPDATE client, and performance tools — all the components used to operate DNS services.

Install Loop 1.99.22 Documentation Commercial support $1,000/month/host

Loop is an enterprise-grade DNS nameserver distribution. It is maintained as a DNS reference implementation by closely adhering to the DNS standards. Loop is free for commercial and personal use. It is packaged for Red Hat Enterprise Linux, Fedora, Ubuntu, Debian, Amazon Linux, and Azure Linux.

Authoritative DNS and recursive resolver
in one DNS nameserver

Authoritative DNS

Serve primary and secondary zones from RFC 1035 zone master files with efficient replication and durable change tracking.

Primary and secondary authoritative zones
DNS NOTIFY, AXFR, and IXFR
Master files, journaling of changes, and integrity checks

Recursive resolver

Resolve and cache iteratively or through forwarders, selecting upstream servers using measured response times and refreshing hot data before expiry.

Forwarding, prefetch, and cache controls
Built-in empty zones and resolver safeguards
DNSSEC validation
Smoothed-RTT nameserver selection
IPv6, DNS64 and dual-stack server controls

Dynamic DNS

Change live authoritative zones with DNS UPDATE while authorization policies and journaling protect and preserve every update.

RFC 2136 DNS UPDATE support
Fine-grained update policies
TSIG authenticated updates
Kerberos/GSS-TSIG authenticated updates

Live zone lifecycle

Operate a large number of authoritative zones without stopping the server: add or remove zones, refresh replicas, and safely work with dynamic zones.

Runtime zone add/remove and reconfiguration
Refresh, retransfer, reload, and NOTIFY controls
Freeze and thaw zones, journal synchronization

Validate, sign, and protect
DNS data and transactions

DNSSEC validation and trust

Validate recursive answers against DNSSEC chains of trust and keep trust anchors current without manual updation.

DNSSEC-validating recursive resolution
RFC 5011 managed trust anchors
Static trust anchors
RSASHA256, RSASHA512, ECDSAP256SHA256, ECDSAP384SHA384, ED25519, ED448, MLDSA44 algorithm support
Post-quantum downgrade protection
NSEC and NSEC3 support
RFC 8509 root trust anchor sentinel checks

Manual & automated zone signing

Sign authoritative zones online and automate the routine work of publishing keys, rolling keys, and maintaining signatures.

Manual signing with bundled DNSSEC utility programs
Automatic and inline DNSSEC signing
Key rollover and periodic re-signing
RSASHA256, RSASHA512, ECDSAP256SHA256, ECDSAP384SHA384, ED25519, ED448, MLDSA44 algorithm support
NSEC, NSEC3, OPTOUT, and signing-state controls

Protected DNSSEC keys

Keep private key material encrypted on disk or in PKCS#11 hardware security modules while using the normal DNSSEC workflow.

Encrypted private-key files at rest
PKCS#11 HSM key generation and signing
RSASHA256, RSASHA512, ECDSAP256SHA256, ECDSAP384SHA384, ED25519, ED448, MLDSA44 algorithm support in encrypted private-key files and for HSM key generation and signing

Authenticated DNS transactions

Authenticate updates, transfers, and other DNS transactions using shared-secret, public-key, or Kerberos-based mechanisms.

TSIG, TKEY, and SIG(0) authentication
GSS-TSIG/Kerberos authentication
Key-aware ACLs and update policies

Threat protection
and fine-grained access controls

Views and access control

Present different nameserver configurations and resolver behavior to different clients and tightly scope access to DNS features.

Split DNS with multiple views
Address-based and key-based ACLs
Query, recursion, transfer, and update controls among others

RPZ filtering and abuse resistance

Apply DNS firewall response policies from third-party feeds, and limit reflection and abuse.

Use up to 64 Response Policy Zones (RPZ) with threat control and filtering policies
Response Rate Limiting (RRL)
DNS cookies

Reporting filtering and errors

Return standards-based filtering information and detailed errors when requests are filtered, prohibited due to access control, or fail during processing.

EDNS Extended DNS Errors
EDNS Structured DNS Errors
EDNS options for filtering information

Resolver and resource safeguards

Bound expensive recursive work and memory use with configurable cache, fetch, recursion, TCP, and transfer limits.

Per-server and per-zone fetch quotas
Recursion depth, query, and client limits
Cache size/TTL and transfer resource controls

Manage, monitor, and diagnose
production DNS operations

Akira-managed operation

Let Akira centrally configure and monitor nameservers over secure authenticated connections while retaining resilient local startup behavior.

Authenticated management over secure WebSocket that works through corporate firewalls
Remote configuration management of farms of nameserver groups
Status monitoring
Statistics graphs
Cached configuration and built-in fallback

Statistics and logging

Inspect nameserver, resolver, zone-maintenance, and socket activity with detailed counters, history, and configurable logs.

XML server statistics
Statistics recording in time-series RRD databases
Graph rendering in Akira
Finely configurable logging system
Query logging

Administration and hardening

Control a live server remotely and reduce daemon privileges using operating-system isolation and capability controls.

Remote control using rndc program: reload, cache, zone, and DNSSEC controls
Unprivileged-user and chroot(2) jail support
Linux capability minimization and resource-limit controls

DNS operator toolset

Query, validate, update, inspect, check, sign, and benchmark DNS using utilities shipped and tested within the same distribution.

dig and delv DNS clients
RFC 2136 DNS UPDATEs using nsupdate
Configuration, zone, journal, RR, key-generation, and DNSSEC utilities
dnsperf and resperf load testing

DNS management using Akira

Configure, monitor, and manage groups of nameservers centrally with the Akira network manager application.

Loop installation

Loop is packaged for Red Hat Enterprise Linux & clones, Fedora, Ubuntu, Debian, Amazon Linux, and Azure Linux.

To install Loop version 1.99.22 on Red Hat Enterprise Linux 10 (x86_64), follow these steps as the root user.

First, install the akira-release RPM package that will add the akira-epel and akira-epel-testing DNF repositories to your system, as well as associated GPG keys used to verify signed RPM packages from these repositories:

# dnf install https://download.akira.org/packages/akira/1.99/epel/10/x86_64/akira-release-1.99.22.20260929062732.578d1ce122-1.el10.noarch.rpm

Then, install the loop RPM package that will install the Loop software and documentation:

# dnf install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Red Hat Enterprise Linux 10 (aarch64), follow these steps as the root user.

# dnf install https://download.akira.org/packages/akira/1.99/epel/10/aarch64/akira-release-1.99.22.20260929062732.578d1ce122-1.el10.noarch.rpm

Then, install the loop RPM package that will install the Loop software and documentation:

# dnf install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Red Hat Enterprise Linux 9 (x86_64), follow these steps as the root user.

# dnf install https://download.akira.org/packages/akira/1.99/epel/9/x86_64/akira-release-1.99.22.20260929062732.578d1ce122-1.el9.noarch.rpm

Then, install the loop RPM package that will install the Loop software and documentation:

# dnf install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Red Hat Enterprise Linux 9 (aarch64), follow these steps as the root user.

# dnf install https://download.akira.org/packages/akira/1.99/epel/9/aarch64/akira-release-1.99.22.20260929062732.578d1ce122-1.el9.noarch.rpm

Then, install the loop RPM package that will install the Loop software and documentation:

# dnf install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Fedora Linux 44 (x86_64), follow these steps as the root user.

First, install the akira-release RPM package that will add the akira-fedora and akira-fedora-testing DNF repositories to your system, as well as associated GPG keys used to verify signed RPM packages from these repositories:

# dnf install https://download.akira.org/packages/akira/1.99/fedora/44/x86_64/akira-release-1.99.22.20260929062732.578d1ce122-1.fc44.noarch.rpm

Then, install the loop RPM package that will install the Loop software and documentation:

# dnf install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Fedora Linux 44 (aarch64), follow these steps as the root user.

# dnf install https://download.akira.org/packages/akira/1.99/fedora/44/aarch64/akira-release-1.99.22.20260929062732.578d1ce122-1.fc44.noarch.rpm

Then, install the loop RPM package that will install the Loop software and documentation:

# dnf install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Fedora Linux 43 (x86_64), follow these steps as the root user.

# dnf install https://download.akira.org/packages/akira/1.99/fedora/43/x86_64/akira-release-1.99.22.20260929062732.578d1ce122-1.fc43.noarch.rpm

Then, install the loop RPM package that will install the Loop software and documentation:

# dnf install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Fedora Linux 43 (aarch64), follow these steps as the root user.

# dnf install https://download.akira.org/packages/akira/1.99/fedora/43/aarch64/akira-release-1.99.22.20260929062732.578d1ce122-1.fc43.noarch.rpm

Then, install the loop RPM package that will install the Loop software and documentation:

# dnf install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Debian 13 “Trixie” (amd64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/debian/trixie/amd64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/debian/trixie/amd64/ /" > /etc/apt/sources.list.d/akira-trixie-amd64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Debian 13 “Trixie” (arm64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/debian/trixie/arm64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/debian/trixie/arm64/ /" > /etc/apt/sources.list.d/akira-trixie-arm64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Debian 13 “Trixie” (riscv64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/debian/trixie/riscv64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/debian/trixie/riscv64/ /" > /etc/apt/sources.list.d/akira-trixie-riscv64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Debian 12 “Bookworm” (amd64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/debian/bookworm/amd64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/debian/bookworm/amd64/ /" > /etc/apt/sources.list.d/akira-bookworm-amd64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Debian 12 “Bookworm” (arm64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/debian/bookworm/arm64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/debian/bookworm/arm64/ /" > /etc/apt/sources.list.d/akira-bookworm-arm64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Ubuntu 26.04 LTS “Resolute Raccoon” (amd64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/ubuntu/resolute/amd64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/ubuntu/resolute/amd64/ /" > /etc/apt/sources.list.d/akira-resolute-amd64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Ubuntu 26.04 LTS “Resolute Raccoon” (arm64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/ubuntu/resolute/arm64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/ubuntu/resolute/arm64/ /" > /etc/apt/sources.list.d/akira-resolute-arm64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Ubuntu 26.04 LTS “Resolute Raccoon” (riscv64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/ubuntu/resolute/riscv64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/ubuntu/resolute/riscv64/ /" > /etc/apt/sources.list.d/akira-resolute-riscv64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Ubuntu 24.04 LTS “Noble Numbat” (amd64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/ubuntu/noble/amd64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/ubuntu/noble/amd64/ /" > /etc/apt/sources.list.d/akira-noble-amd64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Ubuntu 24.04 LTS “Noble Numbat” (arm64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/ubuntu/noble/arm64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/ubuntu/noble/arm64/ /" > /etc/apt/sources.list.d/akira-noble-arm64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Ubuntu 24.04 LTS “Noble Numbat” (riscv64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/ubuntu/noble/riscv64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/ubuntu/noble/riscv64/ /" > /etc/apt/sources.list.d/akira-noble-riscv64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Ubuntu 22.04 LTS “Jammy Jellyfish” (amd64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/ubuntu/jammy/amd64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/ubuntu/jammy/amd64/ /" > /etc/apt/sources.list.d/akira-jammy-amd64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

To install Loop version 1.99.22 on Ubuntu 22.04 LTS “Jammy Jellyfish” (arm64), follow these steps as the root user.

First, copy the OpenPGP key that apt uses to verify the release's deb package checksums into /usr/share/keyrings/:

# curl -o /usr/share/keyrings/akira-archive-keyring.gpg https://download.akira.org/packages/akira/1.99/ubuntu/jammy/arm64/akira-archive-keyring-2026-06-09.gpg

Then, add the Akira apt network package repository for your platform:

# echo "deb [signed-by=/usr/share/keyrings/akira-archive-keyring.gpg] https://download.akira.org/packages/akira/1.99/ubuntu/jammy/arm64/ /" > /etc/apt/sources.list.d/akira-jammy-arm64.list

Then, install the loop deb package that will install the Loop software and documentation:

# apt install loop

Then, if you wish to run the nameserver, configure named suitably by editing /etc/loop/named.conf, and then run it:

# systemctl enable --now named

Note

Loop is free for commercial and personal use. Please see its license under Loop documentation for more details.

Note

Users of Red Hat Enterprise Linux clones such as Rocky Linux, AlmaLinux, and Oracle Linux can use the Red Hat Enterprise Linux packages of the corresponding version and follow the corresponding installation instructions.

Warning

Amazon Linux and Azure Linux packages are currently alpha releases, i.e., they are published only for testing purposes. They have known outstanding issues due to idiosyncracies of these platforms, which may cause various functions to not work correctly or at all. We will remove this warning when these issues have been resolved.

Note

Raspberry Pi OS users can use the Debian arm64 packages of the corresponding Debian version (e.g., Trixie) and follow the corresponding installation instructions.

Note

On some Linux distributions that have SELinux enabled, you may notice errors when running the named service such as:

Aug 10 07:59:06 rpi3 audit[14591]: AVC avc:  denied  { create } for  pid=14591 comm="loop-worker-0" name="tmp-dW3tOeMfdD" scontext=system_u:system_r:named_t:s0 tcontext=system_u:object_r:var_lib_t:s0 tclass=file permissive=0
Aug 10 07:59:06 rpi3 audit[14591]: AVC avc:  denied  { read write open } for  pid=14591 comm="loop-worker-0" path="/var/lib/loop/tmp-dW3tOeMfdD" dev="mmcblk0p3" ino=258270 scontext=system_u:system_r:named_t:s0 tcontext=system_u:object_r:var_lib_t:s0 tclass=file permissive=0
Aug 10 07:59:07 rpi3 audit[14591]: AVC avc:  denied  { rename } for  pid=14591 comm="loop-worker-0" name="tmp-dW3tOeMfdD" dev="mmcblk0p3" ino=258270 scontext=system_u:system_r:named_t:s0 tcontext=system_u:object_r:var_lib_t:s0 tclass=file permissive=0
Aug 10 07:59:07 rpi3 audit[14591]: AVC avc:  denied  { unlink } for  pid=14591 comm="loop-worker-0" name="managed-keys.loop" dev="mmcblk0p3" ino=258227 scontext=system_u:system_r:named_t:s0 tcontext=system_u:object_r:var_lib_t:s0 tclass=file permissive=0

These errors occur because SELinux, when using the targeted policy, runs the program with path /usr/sbin/named confined in the named_t security context. It limits the directories where the named process can write to. This can be verified by running the command:

$ ps axZ | grep named
system_u:system_r:named_t:s0    14591 ?        Ssl    0:01 /usr/sbin/named -u loop

The loop package doesn't (and shouldn't) do anything to solve this issue automatically as it would be a hack. The SELinux policies for programs such as /usr/sbin/named are installed by a different package called selinux-policy-targeted, and are not handled by the loop package.

You can workaround this issue by either configuring SELinux to run in permissive mode, or by editing the targeted policy to remove the Loop programs from it.

We will rename named in a future release, or have this issue resolved in the distro packages, upon which this issue should not occur anymore.

Loop documentation

Loop is documented in the Loop User Manual, and manpages are provided for the Loop programs and their config files. The user manual and manpages are also included in the software packages.

Branch	Type	User Manual	User Manual	Download HTML	README	License
1.99	Development	View PDF	View HTML	Download HTML ZIP	View README	View LICENSE.txt

Commercial support

Paid commercial support is available covering the entire Akira platform of products.
Whatever Akira products you use, you are covered all under one commercial support plan.

Akira platform support plans Three different support options are available. Paid commercial support plans include support for all of Loop, Dora, and Akira together on a per-host basis.	None Free Install Loop Documentation Public mailing lists	Business US $1,000/month/host Email sales Purchase	Larger operator US $1,000/month/host Email sales Purchase
Contract period	Not applicable	None	None
Minimum number of hosts	Not applicable	1	64
Support hours	Not applicable	Business hours (9 AM—5 PM)	24×7 throughout the year
Response time	Not applicable	Within 1–2 business days	Immediate ASAP
Community discussions on public mailing lists
Commercial support from Akira by email
Commercial support from Akira by voice/video
Access to support tickets system
Advance information about vulnerabilities

Paying commercial support customers may follow the instructions provided through their Akira account for receiving support. Other users may use the public Akira mailing lists for community discussions, or email <support@akira.org> for other support requests.

Authoritative DNS

Recursive resolver

Dynamic DNS

Live zone lifecycle

DNSSEC validation and trust

Manual & automated zone signing

Protected DNSSEC keys

Authenticated DNS transactions

Views and access control

RPZ filtering and abuse resistance

Reporting filtering and errors

Resolver and resource safeguards

Akira-managed operation

Statistics and logging

Administration and hardening

DNS operator toolset

Red Hat Enterprise Linux 10 (x86_64)

Red Hat Enterprise Linux 10 (aarch64)

Red Hat Enterprise Linux 9 (x86_64)

Red Hat Enterprise Linux 9 (aarch64)

Fedora Linux 44 (x86_64)

Fedora Linux 44 (aarch64)

Fedora Linux 43 (x86_64)

Fedora Linux 43 (aarch64)

Debian 13 “Trixie” (amd64)

Debian 13 “Trixie” (arm64)

Debian 13 “Trixie” (riscv64)

Debian 12 “Bookworm” (amd64)

Debian 12 “Bookworm” (arm64)

Ubuntu 26.04 LTS “Resolute Raccoon” (amd64)

Ubuntu 26.04 LTS “Resolute Raccoon” (arm64)

Ubuntu 26.04 LTS “Resolute Raccoon” (riscv64)

Ubuntu 24.04 LTS “Noble Numbat” (amd64)

Ubuntu 24.04 LTS “Noble Numbat” (arm64)

Ubuntu 24.04 LTS “Noble Numbat” (riscv64)

Ubuntu 22.04 LTS “Jammy Jellyfish” (amd64)

Ubuntu 22.04 LTS “Jammy Jellyfish” (arm64)

Note

Note

Warning

Note

Note

Akira platform support plans