Unbound TCP buffer settings not sticky

shinzo · Feb 26, 2014, 7:10 PM

@Shinzo,
What version package were you running prior? I can tell you outgoing-range as a custom setting, along with a few select others, has never worked in 2.0 or 2.1, see my post @ https://forum.pfsense.org/index.php/topic,64897.msg352131.html#msg352131 . I had to strip my custom options down to only forward zone and addresses. No way to detune unbound. So you cant really troubleshoot the package by probable trial'n'error if it acts quirky. Unbound reboots by itself a few times a day on my 64-bit install. And I've never read anywhere until today that the word "option:" needs to be placed before every custom option entry if I read this thread correctly. Where is this documented? I don't use them in my options and the ones I have entered show in the unbound.conf fine. Can't say if, for example, "option: outgoing-range: 950" would be accepted by unbound but imagine it would get hung up on the pair of colon syntax, although I haven't tried it.

The "option: blah" was used as a example of how the output should be. As i continue to troubleshoot my issue, i removed the 4 previous lines which had to do with the forward-zones and got it up and running, il keep looking

oh and i was using version 1.4.21_2 and it was on a 2.1.1 box

bryan.paradis · Feb 26, 2014, 7:37 PM

FILE FORMAT
There must be whitespace between keywords. Attribute keywords end with
a colon ':'. An attribute is followed by its containing attributes, or
a value.

Files can be included using the include: directive. It can appear any-
where, it accepts a single file name as argument. Processing continues
as if the text from the included file was copied into the config file
at that point. If also using chroot, using full path names for the
included files works, relative pathnames for the included names work if
the directory where the daemon is started equals its chroot/working
directory. Wildcards can be used to include multiple files, see
glob(7).

Server Options
These options are part of the server: clause.

Looks like the configuration file should be laid out in clause sections full of options as below:


server:
option: blah

remote-control:
option: blah

stub-zone:
option: blah

forward-zone:
option: blah

but it seems that the custom server options are being added after the forward-zone clause. I have moved the code in the unbound.inc file up above the foward-zone code and attached it. Try backing up the unbound.inc and placing the one I have attached in its place.

unbound.inc.txt

shinzo · Feb 26, 2014, 7:39 PM

#########################

Unbound configuration

#########################

Server config

server:
chroot: ""
username: "unbound"
directory: "/usr/pbi/unbound-amd64/etc/unbound"
pidfile: "/var/run/unbound.pid"
harden-referral-path: no
prefetch: no
prefetch-key: no
use-syslog: yes
port: 53
verbosity: 0
do-ip4: yes
do-ip6: yes
do-udp: yes
do-tcp: yes
do-daemonize: yes
module-config: "validator iterator"
unwanted-reply-threshold: 5000000
num-queries-per-thread: 512
jostle-timeout: 200
infra-host-ttl: 900
prefetch: no
prefetch-key: no
infra-cache-numhosts: 15000
outgoing-num-tcp: 10
incoming-num-tcp: 10
edns-buffer-size: 4096
statistics-interval: 0
extended-statistics: no
statistics-cumulative: no
cache-max-ttl: 86400
cache-min-ttl: 0
harden-dnssec-stripped: yes
hide-identity: yes
hide-version: yes
harden-glue: yes
num-threads: 4
msg-cache-slabs: 4
rrset-cache-slabs: 4
infra-cache-slabs: 4
key-cache-slabs: 4
msg-cache-size: 10m
rrset-cache-size: 20m
outgoing-range: 8192
#so-rcvbuf: 4m
#so-sndbuf: 4m

Interface IP(s) to bind to

interface: 192.168.1.1

Interfaces to query from

outgoing-interface: 192.168.1.1

auto-trust-anchor-file: /usr/pbi/unbound-amd64/etc/unbound/root-trust-anchor

Access Control

Local attached networks allowed to utilize service and any user added ACLs

access-control: 127.0.0.0/8 allow
access-control: ::1 allow
access-control: 192.168.1.0/27 allow

For DNS Rebinding prevention

private-address: 10.0.0.0/8
private-address: 172.16.0.0/12
private-address: 192.168.0.0/16
private-address: 169.254.0.0/16
private-address: fd00::/8
private-address: fe80::/10

Set private domains in case authorative name server returns a RFC1918 IP address

Host entries

local-zone: "lan" transparent
local-data-ptr: "127.0.0.1 localhost"
local-data: "localhost A 127.0.0.1"
local-data: "localhost.lan A 127.0.0.1"
local-data-ptr: "::1 localhost"
local-data: "localhost AAAA ::1"
local-data: "localhost.lan AAAA ::1"
local-data-ptr: "192.168.1.1 peanuts.lan"
local-data: "peanuts.lan A 192.168.1.1"
local-data: "peanuts A 192.168.1.1"

DHCP Reservations

/etc/hosts entries

Domain overrides

#forward-zone:
#name: "."
#forward-addr: 75.75.75.75
#forward-addr: 75.75.76.76

Unbound Custom options

msg-cache-slabs: 1
rrset-cache-slabs: 1
infra-cache-slabs: 1
key-cache-slabs: 1
outgoing-range: 950
val-clean-additional: yes
harden-glue: yes
do-not-query-localhost: yes
do-ip6: no
use-caps-for-id: no
hide-identity: yes
hide-version: yes

Remote Control Config

remote-control:
control-enable: yes
control-interface: 127.0.0.1
control-port: 953
server-key-file: "/usr/pbi/unbound-amd64/etc/unbound/unbound_server.key"
server-cert-file: "/usr/pbi/unbound-amd64/etc/unbound/unbound_server.pem"
control-key-file: "/usr/pbi/unbound-amd64/etc/unbound/unbound_control.key"
control-cert-file: "/usr/pbi/unbound-amd64/etc/unbound/unbound_control.pem"

thats how my file looks like when its working. Some of those options are doubled because they weren't there before or i didn't want to manually change the values every time the package was updated. If i put them in the custom options window, then it will overwrite the default value to what ever i wanted since the custom options are read last

thats the output in the status tab when its running. or do you want the config file?

bryan.paradis · Feb 26, 2014, 7:46 PM

@shinzo:

#########################

Unbound configuration

#########################

snip

thats how my file looks like when its working. Some of those options are doubled because they weren't there before or i didn't want to manually change the values every time the package was updated. If i put them in the custom options window, then it will overwrite the default value to what ever i wanted since the custom options are read last

Check my update attachement. I think it is because the custom options are getting put in after the server: clause has been finished because the forward-zones clause has started. Can you test it out to see if it works properly with my changes?

shinzo · Feb 26, 2014, 7:45 PM

sure just need a minute

shinzo · Feb 26, 2014, 7:53 PM

@bryan.paradis:

@shinzo:

#########################

Unbound configuration

#########################

snip

thats how my file looks like when its working. Some of those options are doubled because they weren't there before or i didn't want to manually change the values every time the package was updated. If i put them in the custom options window, then it will overwrite the default value to what ever i wanted since the custom options are read last

Check my update attachement. I think it is because the custom options are getting put in after the server: clause has been finished because the forward-zones clause has started. Can you test it out to see if it works properly with my changes?

yeah that did fix it.

it looks like

Unbound Custom options

msg-cache-slabs: 1
rrset-cache-slabs: 1
infra-cache-slabs: 1
key-cache-slabs: 1
val-clean-additional: yes
harden-glue: yes
do-not-query-localhost: yes
do-ip6: no
use-caps-for-id: no
hide-identity: yes
hide-version: yes
forward-zone:
name: "."
forward-addr: 75.75.75.75
forward-addr: 75.75.76.76

bryan.paradis · Feb 26, 2014, 8:10 PM

So all the options work correctly now?

markn62 · Feb 26, 2014, 8:20 PM

I've never had an issue with forward zones taking. Bryan, where did you get the syntax document? Is it for the unbound package or unbound stand-alone, two different animals. And your work begs another question. Do the custom options override the GUI settings or cause unbound to not start?

Guess I'll have to do some testing myself. Looks like forward zones no longer make it from the GUI to the config file. If so, the GUI notes below the custom options box is in need of editing to clarify the syntax required.

shinzo · Feb 26, 2014, 8:22 PM

@bryan.paradis:

So all the options work correctly now?

yes its working correctly, thank you

wagonza · Feb 26, 2014, 8:36 PM

Yes that was a mistake. Thanks @bryan.paradis. Fix pushed.

markn62 · Feb 26, 2014, 8:49 PM

I stand corrected, the old syntax is still putting forward zones in the config file. Options are pushed way down with the recent expansion of reserve leases and hostnames. Thanks for clarifying the syntax bryan.

bryan.paradis · Feb 26, 2014, 8:54 PM

@markn62:

I've never had an issue with forward zones taking. Bryan, where did you get the syntax document? Is it for the unbound package or unbound stand-alone, two different animals. And your work begs another question. Do the custom options override the GUI settings or cause unbound to not start?

Guess I'll have to do some testing myself. Looks like forward zones no longer make it from the GUI to the config file. If so, the GUI notes below the custom options box is in need of editing to clarify the syntax required.

Forward zones would take but the custom options are being put in the forward zones clause area and not in the server clause area causing errors if you add any.

@markn62:

I stand corrected, the old syntax is still putting forward zones in the config file. Options are pushed way down with the recent expansion of reserve leases and hostnames. Thanks for clarifying the syntax bryan.

GUI generates a config file in unbound.inc out of what you fill out which is then what unbound uses. Just like the standalone.

@wagonza:

Yes that was a mistake. Thanks @bryan.paradis. Fix pushed.

:) Your welcome

markn62 · Feb 28, 2014, 5:47 PM

Thanks for clarifying Bryan. Wagonza, either it's not installing correctly or the unbound fix broke the service. When I install the package it always fails the first time and shows installed but won't run. Reboot and reinstall pkg, then unbound starts but doesn't resolve 100%. Hit'n'miss on the queries. Some webpages load, via google links all connections would fail. Had to point router to backup Unbound service on another box.

When I finally get it to install it shows in GUI as 1.4.21_3 just as it does in the available packages list. When I uninstall it the script reports it's uninstalling 1.4.21_1. Leaving remnants behind? Also notice watchdog leaves unbound in it's list and fills the log. Maybe its normal the uninstall wouldn't remove a watchdog entry.

And I'm still not clear when it can't install the unbound pkg from pfsense server that it doesn't use a cached copy of the package from local drive like the pkg installer says it will do. When unbound acts up its very hard to fix PfSense since all web updates are reliant on it. I'm going to look into putting unbound on an embedded linux box and forget it as a PfSense package at least until such time as it gets a thorough looking over.

On the bright side, outgoing-num-tcp & incoming-num-tcp GUI entries are now sticky.

wagonza · Feb 28, 2014, 6:12 PM

Interesting…looks like you may have remnants of an old package lying around which might be the cause of your problems.
The fact that Watchdog still has it in its list is a good indicator of this.

Sorry you have had problems with the package its been kind(er) to others.
Its going into 2.2 as a replacement for DNSMasq so no longer will it be a package. Might be a better experience for you then.

doktornotor · Feb 28, 2014, 6:26 PM

Just noting that I reinstalled unbound multiple times on multiple boxes without any problems whatsoever after the latest batch of commits… So yeah, you probably have some state junk leftovers on your box.

markn62 · Feb 28, 2014, 6:40 PM

States get reset on reboot, no? Don't think it's states unless only a state reset will do. So I should console ipkg list then ipkg remove package.name? Or is more cleanup needed?

wagonza · Feb 28, 2014, 6:44 PM

Check your config.xml for multiple entries for Unbound.
Look between <installedpackages>xml tags.</installedpackages>

markn62 · Feb 28, 2014, 7:00 PM

./conf.default/config.xml or ./cf/conf/config.xml?

wagonza · Feb 28, 2014, 7:08 PM

The latter one.

bryan.paradis · Feb 28, 2014, 7:46 PM

@markn62:

./conf.default/config.xml or ./cf/conf/config.xml?

Same thing /conf is a link of /cf/conf

mark62 are you running pfsense 2.1 that has been upgraded? Likely you need to manually clean out unbound.

Uninstall unbound
Turn on rw
Find / -name *unbound*
Delete everything you can find
/conf/config.XML clear out all everything to do with unbound. Backup first maybe.
Once you are sure you have killed everything reinstall.
If you have problems with internet try adding a DNS to resolv.conf