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Unbound: Group patch work for example.conf.in 

-Remove interlaced configuration changes
--Less sensitive to upstream example.conf changes
--Easier to read patch-of-patch work for maintenance
-Use MEMORY CONTROL EXAMPLE from http://unbound.net/
--Review and rework with respect to previous pacakge
--Effectively the same configuration as previous package
-Disable DNSSEC by default due to real-time chicken-n-egg
--Many OpenWrt target devices have no power-off clock (reboot)
--User choice of work around should be conscious
--Initial install should not fail reboot with DNSSEC default
-Add some defaults explicitly to prevent surprises

Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
lilik-openwrt-22.03
Eric Luehrsen 8 years ago
parent
78d163bdea
commit
acf40cf6ae
1 changed files with 84 additions and 123 deletions
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  1. +84
    -123
      net/unbound/patches/001-conf.patch

+ 84
- 123
net/unbound/patches/001-conf.patch View File

@ -1,133 +1,94 @@
diff --git a/doc/example.conf.in b/doc/example.conf.in
index c520c88..af92a87 100644
--- a/doc/example.conf.in --- a/doc/example.conf.in
+++ b/doc/example.conf.in +++ b/doc/example.conf.in
@@ -38,6 +38,8 @@ server:
# interface: 192.0.2.154
# interface: 192.0.2.154@5003
# interface: 2001:DB8::5
@@ -1,20 +1,81 @@
-#
-# Example configuration file.
-#
-# See unbound.conf(5) man page, version 1.5.10.
-#
-# this is a comment.
+##############################################################################
+# MEMORY CONTROL EXAMPLE
+# In the example config settings below memory usage is reduced. Some ser-
+# vice levels are lower, notable very large data and a high TCP load are
+# no longer supported ... are exceptional for the DNS.
+# (http://unbound.net/documentation/unbound.conf.html)
+##############################################################################
#Use this to include other text into the file.
#include: "otherfile.conf"
# The server clause sets the main parameters.
server:
- # whitespace is not necessary, but looks cleaner.
- # verbosity number, 0 is least verbose. 1 is default.
+ # verbosity 1 is default
verbosity: 1
+ # prevent any upstream core surprises (OpenWrt assumptions)
+ username: "unbound"
+ pidfile: "/var/run/unbound.pid"
+ directory: "/etc/unbound"
+ chroot: ""
+
+ # no threads and no memory slabs for threads
+ num-threads: 1
+ msg-cache-slabs: 1
+ rrset-cache-slabs: 1
+ infra-cache-slabs: 1
+ key-cache-slabs: 1
+
+ # don't be picky about interfaces but consider your firewall
+ interface: 0.0.0.0 + interface: 0.0.0.0
+ interface: ::0 + interface: ::0
# enable this feature to copy the source address of queries to reply.
# Socket options are not supported on all platforms. experimental.
@@ -66,6 +68,7 @@ server:
# port range that can be open simultaneously. About double the
# num-queries-per-thread, or, use as many as the OS will allow you.
# outgoing-range: 4096
+ outgoing-range: 60
# permit unbound to use this port number or port range for
# making outgoing queries, using an outgoing interface.
@@ -82,9 +85,11 @@ server:
# number of outgoing simultaneous tcp buffers to hold per thread.
# outgoing-num-tcp: 10
+ outgoing-num-tcp: 1
# number of incoming simultaneous tcp buffers to hold per thread.
# incoming-num-tcp: 10
+ access-control: 0.0.0.0/0 allow
+ access-control: ::0/0 allow
+
+ # this limits TCP service but uses less buffers
+ outgoing-num-tcp: 1
+ incoming-num-tcp: 1 + incoming-num-tcp: 1
# buffer size for UDP port 53 incoming (SO_RCVBUF socket option).
# 0 is system default. Use 4m to catch query spikes for busy servers.
@@ -118,18 +123,22 @@ server:
# buffer size for handling DNS data. No messages larger than this
# size can be sent or received, by UDP or TCP. In bytes.
# msg-buffer-size: 65552
+
+ # use somewhat higher port numbers versus possible NAT issue
+ outgoing-port-permit: "10240-65335"
+
+ # uses less memory, but less performance
+ outgoing-range: 60
+ num-queries-per-thread: 30
+
+ # exclude large responses
+ msg-buffer-size: 8192 + msg-buffer-size: 8192
# the amount of memory to use for the message cache.
# plain value in bytes or you can append k, m or G. default is "4Mb".
# msg-cache-size: 4m
+
+ # tiny memory cache
+ infra-cache-numhosts: 200
+ msg-cache-size: 100k + msg-cache-size: 100k
# the number of slabs to use for the message cache.
# the number of slabs must be a power of 2.
# more slabs reduce lock contention, but fragment memory usage.
# msg-cache-slabs: 4
+ msg-cache-slabs: 1
# the number of queries that a thread gets to service.
# num-queries-per-thread: 1024
+ num-queries-per-thread: 30
# if very busy, 50% queries run to completion, 50% get timeout in msec
# jostle-timeout: 200
@@ -140,11 +149,13 @@ server:
# the amount of memory to use for the RRset cache.
# plain value in bytes or you can append k, m or G. default is "4Mb".
# rrset-cache-size: 4m
+ rrset-cache-size: 100k + rrset-cache-size: 100k
# the number of slabs to use for the RRset cache.
# the number of slabs must be a power of 2.
# more slabs reduce lock contention, but fragment memory usage.
# rrset-cache-slabs: 4
+ rrset-cache-slabs: 1
# the time to live (TTL) value lower bound, in seconds. Default 0.
# If more than an hour could easily give trouble due to stale data.
@@ -168,9 +179,11 @@ server:
# the number of slabs must be a power of 2.
# more slabs reduce lock contention, but fragment memory usage.
# infra-cache-slabs: 4
+ infra-cache-slabs: 1
# the maximum number of hosts that are cached (roundtrip, EDNS, lame).
# infra-cache-numhosts: 10000
+ infra-cache-numhosts: 200
# define a number of tags here, use with local-zone, access-control.
# repeat the define-tag statement to add additional tags.
@@ -215,6 +228,8 @@ server:
# access-control: ::0/0 refuse
# access-control: ::1 allow
# access-control: ::ffff:127.0.0.1 allow
+ access-control: 0.0.0.0/0 allow
+ access-control: ::0/0 allow
# tag access-control with list of tags (in "" with spaces between)
# Clients using this access control element use localzones that
@@ -309,12 +324,15 @@ server:
# positive value: fetch that many targets opportunistically.
# Enclose the list of numbers between quotes ("").
# target-fetch-policy: "3 2 1 0 0"
+ target-fetch-policy: "2 1 0 0 0 0"
# Harden against very small EDNS buffer sizes.
# harden-short-bufsize: no
+ harden-short-bufsize: yes
# Harden against unseemly large queries.
# harden-large-queries: no
+ harden-large-queries: yes
# Harden against out of zone rrsets, to avoid spoofing attempts.
# harden-glue: yes
@@ -414,7 +432,7 @@ server:
# you start unbound (i.e. in the system boot scripts). And enable:
# Please note usage of unbound-anchor root anchor is at your own risk
# and under the terms of our LICENSE (see that file in the source).
- # auto-trust-anchor-file: "@UNBOUND_ROOTKEY_FILE@"
+ auto-trust-anchor-file: "@UNBOUND_ROOTKEY_FILE@"
# File with DLV trusted keys. Same format as trust-anchor-file.
# There can be only one DLV configured, it is trusted from root down.
@@ -504,15 +522,18 @@ server:
# the amount of memory to use for the key cache.
# plain value in bytes or you can append k, m or G. default is "4Mb".
# key-cache-size: 4m
+ key-cache-size: 100k + key-cache-size: 100k
# the number of slabs to use for the key cache.
# the number of slabs must be a power of 2.
# more slabs reduce lock contention, but fragment memory usage.
# key-cache-slabs: 4
+ key-cache-slabs: 1
# the amount of memory to use for the negative cache (used for DLV).
# plain value in bytes or you can append k, m or G. default is "1Mb".
# neg-cache-size: 1m
+ neg-cache-size: 10k + neg-cache-size: 10k
# By default, for a number of zones a small default 'nothing here'
# reply is built-in. Query traffic is thus blocked. If you
+
+ # gentle on recursion
+ target-fetch-policy: "2 1 0 0 0 0"
+ harden-large-queries: yes
+ harden-short-bufsize: yes
+
+ # Enable a trust anchor and modules "validator iterator." However, Unbound
+ # RFC5011 "auto-trust-anchor-" activity can be busy and harmful to flash ROM.
+ # "/etc/unbound" (directory & files) needs chown for write access. Else, use
+ # plain "trust-anchor-" to treat the key file as static.
+ #module-config: "validator iterator"
+ #auto-trust-anchor-file: "@UNBOUND_ROOTKEY_FILE@"
+ #trust-anchor-file: "@UNBOUND_ROOTKEY_FILE@"
+
+ # DNSSEC needs real time to validate signatures. If your device does not
+ # have power off clock (reboot), then you may need this work around.
+ #domain-insecure: "pool.ntp.org"
+
+##############################################################################
+# Resume Stock example.conf.in
+##############################################################################
+
# print statistics to the log (for every thread) every N seconds.
# Set to "" or 0 to disable. Default is disabled.
# statistics-interval: 0

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