DNS flag day 2020, software should reflect the minimum EDNS 1232 bytes.
Added iface_wan and iface_lan to control internal DNS assignemnts and
to control what is local service ACL. Interface wild cards are not
explicitly set so that they can be customized in extended conf.
Signed-off-by: Eric Luehrsen <ericluehrsen@gmail.com>
- prevent rapid overlap in DHCP script updates
- check and allow localhost forwards with specific applications
- add option for rate limiting inbound queries
- change UCI list to table format with Unbound conf references
Signed-off-by: Eric Luehrsen <ericluehrsen@gmail.com>
Unbound has a quirk and may reply on a different device address.
When Unbound answers with from-address different than it
received queries on, it may cause trouble for select VPN and
firewall configurations. Ensure Unbound replies with the same
address by changing this default.
Signed-off-by: Eric Luehrsen <ericluehrsen@gmail.com>
This exposes the interface-auto option to UCI.
By default, interface-auto is disabled.
This leads to the DNS reply possibly originating from
a different address then the request was sent to.
Devices with a packet filter might not receive the reply in this case.
Enabling interface-auto ensures the reply is sent with the
source-address the request was sent to.
Signed-off-by: David Bauer <mail@david-bauer.net>
- treat RFC6762 'local.' as nxdomain because avahi and other services
will disable if SOA or NS records appear in central DNS.
- allow two threads to be enabled with the 'heavy traffic' variant of
Unbound packages.
Signed-off-by: Eric Luehrsen <ericluehrsen@gmail.com>
With growing interest, DNS over TLS can be setup in Unbounds foward-zone:
clause. A broader UCI solution is added to support forward-, stub-, and
auth- zone clauses in a new 'zone' section. This implentation required
reworking scripts, because they did not scale. 'forward_domain' and
'prefetch_root' options are removed, and superceded by 'zone' section.
Signed-off-by: Eric Luehrsen <ericluehrsen@gmail.com>
Add the possibility to use Unbound auto-zone: clause to
fetch complete root, arpa, in-addr.arpa, and ip6.arpa
zone files. This can speed up recursion when users
access many ccTLD or connection logging hits many PTR.
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
Some resource options bundled many Unbound.conf options and
made customizing on top of UCI difficult. Make it easier to
use Unbound built defaults (blank conf sections).
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
- Add domain_forward to permit designated domains to forward instead
of recurse as listed in resolve.conf.auto from DHCP WAN client
- Update rebind_protection and add rebind_interface to protect IP6
GLA locally just like RFC 1918 protection
- Rename trigger to trigger_interface with backwards compatability
- Update odhcpd script for efficiency handling many clients
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
Enhance the 'control' option to allow using SSL
to connect to the server. Add the 'extended_stats'
option to match 'extended-statistics: yes.'
Document the 'extended_luci' option; it does not
control Unbound, but changes the LuCI tabs.
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
Base LEDE/OpenWrt UCI for dnsmasq provides for DNS override in
/etc/config/dhcp. It is desired to be able to use dnsmasq and
Unbound as transparently as possible. Option 'add_extra_dns'
will pull 'domain', 'mxhost', 'srvhost, and 'cname' from base.
netifd/procd have an interaction with DHCPv6/RA on WAN (FS#713).
Minor IP6 parameter updates can cause Unbound reload events every
few minutes. List option 'trigger' selects which interfaces may
cause reload. For example 'lan', 'wan' but not 'wan6'.
Squash other cosmetics.
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
Unbound UCI tries to protect embedded flash from excess
use. Unbound RFC5011 KSK tracking can rewrite root.key
every few minutes to an hour. It also writes and destroys
files in the same directory during the process.
Recommended UCI delays for copying busy work in /var/
back to /etc/ may be too conservative. These are all
changed from 28 to 9 days.
The RFC5011 KSK results were also destroyed by an
init.d restart, even if /var/ is mounted on persistent
storage like USB drive. /var/lib/unbound/root.key is
now preserved during this process, unless a newer key
is installed in /etc/ manually or package update.
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
Unbound+DHCP (server of your choice) should be able to replicate
a lot of what dnsmasq provides. With this change set Unbound
still works with dnsmasq, but also it can work with a plain
DHCP server. Features have been added within the UCI itself
to act like dnsmasq.
- alone: name each interface relative to router hostname
- alone: prevent upstream leakage of your domain and '.local'
- dnsmasq: use dnsmasq UCI to configure forwarding clauses
- dhcp: work with odhcpd as example of companion DHCP-DNS
- dhcp: convert DHCPv4 leases into EUI64 SLAAC for DNS records
- all: enable encrypted remote unbound-control using splice conf
- all: allow user spliced conf-files for hybrid UCI and manual conf
-- 'unbound_srv.conf' will be spliced into the 'server:' clause
-- 'unbound_ext.conf' will add clauses to the end, example 'forward:'
README HOW TO for dnsmasq-in-serial, dnsmasq-in-parallel, and
unbound-with-odhcpd have better/added UCI starters. HOW TO for
including unbound_srv.conf and unbound_ext.conf are added.
Document new UCI: add_local_fqdn, add_wan_fqdn, dhcp4_slaac6,
dhcp_link, domain, and domain_type
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
- UCI to take advantage of "qname-minimisation-strict:"
- UCI to block chaos reponses bind, server, and version
- UCI to limit or prefer recrusion over IP4 or IP6
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
- UCI option dnsmasq_gate_name typo in few locations
- NTP hotplug to check /etc/init.d/unbound not ..dnsmasq
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
Eric Luehrsen
David Bauer
Eric Luehrsen