date:20191210

Re: [Dnsmasq-discuss] "--all-servers" always on?

2019-12-10 Thread John Siu

You will need "log-queries=extra" in config to see it. Then use
nslookup/dig to different domains.

On Tue, Dec 10, 2019 at 11:35 AM John Siu  wrote:
>
> I see it doing it for every single request.
>
> On Tue, Dec 10, 2019 at 11:12 AM Simon Rettberg
>  wrote:
> >
> > Am Mon, 9 Dec 2019 11:58:22 -0500
> > schrieb John Siu :
> >
> > dnsmasq sends queries to all servers occasionally to determine which
> > one replies fastest, and then keeps using that one exclusively for a
> > while. Do you see every single query sent to all servers, or just the
> > first one after restarting dnsmasq?
> >
> > - Simon
> >
> > > OS: Ubuntu 18.04 with all updates
> > > dnsmasq version: 2.79-1
> > >
> > > According to man page:
> > >
> > > --all-servers
> > > By default, when dnsmasq has more than one upstream server
> > > available, it will send queries to just one server. Setting this flag
> > > forces dnsmasq to send all queries to all available servers. The
> > > reply  from  the  server which  answers first will be returned to the
> > > original requester.
> > >
> > > I don't have that flag in command line or in the config file. However
> > > with "log-queries=extra" in config file, I am seeing following:
> > >
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 query[A]
> > > news.com from 10.10.10.101
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 2001:1998:f00:2::1
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 2001:1998:f00:1::1
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 2606:4700:4700::1001
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 2606:4700:4700::
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 2001:4860:4860::8844
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 2001:4860:4860::
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 209.18.47.63
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 209.18.47.62
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 209.18.47.61
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 1.0.0.1
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 1.1.1.1
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 8.8.4.4
> > > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > > news.com to 8.8.8.8
> > > Dec 09 11:29:25 door dnsmasq[9403]: 3640 10.10.10.101/49351 reply
> > > news.com is 35.190.79.82
> > >
> > > Is --all-servers behavior changed to default on? Is there a way to
> > > revert it?
> > >
> > > Thank you!
> > >
> > > John Siu
> >

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Re: [Dnsmasq-discuss] "--all-servers" always on?

2019-12-10 Thread John Siu

I see it doing it for every single request.

On Tue, Dec 10, 2019 at 11:12 AM Simon Rettberg
 wrote:
>
> Am Mon, 9 Dec 2019 11:58:22 -0500
> schrieb John Siu :
>
> dnsmasq sends queries to all servers occasionally to determine which
> one replies fastest, and then keeps using that one exclusively for a
> while. Do you see every single query sent to all servers, or just the
> first one after restarting dnsmasq?
>
> - Simon
>
> > OS: Ubuntu 18.04 with all updates
> > dnsmasq version: 2.79-1
> >
> > According to man page:
> >
> > --all-servers
> > By default, when dnsmasq has more than one upstream server
> > available, it will send queries to just one server. Setting this flag
> > forces dnsmasq to send all queries to all available servers. The
> > reply  from  the  server which  answers first will be returned to the
> > original requester.
> >
> > I don't have that flag in command line or in the config file. However
> > with "log-queries=extra" in config file, I am seeing following:
> >
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 query[A]
> > news.com from 10.10.10.101
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 2001:1998:f00:2::1
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 2001:1998:f00:1::1
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 2606:4700:4700::1001
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 2606:4700:4700::
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 2001:4860:4860::8844
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 2001:4860:4860::
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 209.18.47.63
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 209.18.47.62
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 209.18.47.61
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 1.0.0.1
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 1.1.1.1
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 8.8.4.4
> > Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> > news.com to 8.8.8.8
> > Dec 09 11:29:25 door dnsmasq[9403]: 3640 10.10.10.101/49351 reply
> > news.com is 35.190.79.82
> >
> > Is --all-servers behavior changed to default on? Is there a way to
> > revert it?
> >
> > Thank you!
> >
> > John Siu
>

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Re: [Dnsmasq-discuss] "--all-servers" always on?

2019-12-10 Thread Simon Rettberg

Am Mon, 9 Dec 2019 11:58:22 -0500
schrieb John Siu :

dnsmasq sends queries to all servers occasionally to determine which
one replies fastest, and then keeps using that one exclusively for a
while. Do you see every single query sent to all servers, or just the
first one after restarting dnsmasq?

- Simon

> OS: Ubuntu 18.04 with all updates
> dnsmasq version: 2.79-1
> 
> According to man page:
> 
> --all-servers
> By default, when dnsmasq has more than one upstream server
> available, it will send queries to just one server. Setting this flag
> forces dnsmasq to send all queries to all available servers. The
> reply  from  the  server which  answers first will be returned to the
> original requester.
> 
> I don't have that flag in command line or in the config file. However
> with "log-queries=extra" in config file, I am seeing following:
> 
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 query[A]
> news.com from 10.10.10.101
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 2001:1998:f00:2::1
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 2001:1998:f00:1::1
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 2606:4700:4700::1001
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 2606:4700:4700::
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 2001:4860:4860::8844
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 2001:4860:4860::
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 209.18.47.63
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 209.18.47.62
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 209.18.47.61
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 1.0.0.1
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 1.1.1.1
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 8.8.4.4
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351 forwarded
> news.com to 8.8.8.8
> Dec 09 11:29:25 door dnsmasq[9403]: 3640 10.10.10.101/49351 reply
> news.com is 35.190.79.82
> 
> Is --all-servers behavior changed to default on? Is there a way to
> revert it?
> 
> Thank you!
> 
> John Siu


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Re: [Dnsmasq-discuss] "--all-servers" always on?

2019-12-10 Thread John Siu

dns_srv.conf:

server=8.8.8.8
server=8.8.4.4
server=1.1.1.1
server=1.0.0.1
server=209.18.47.61
server=209.18.47.62
server=209.18.47.63

## forward dns : ipv6
server=2001:4860:4860::
server=2001:4860:4860::8844
server=2606:4700:4700::
server=2606:4700:4700::1001
server=2001:1998:f00:1::1
server=2001:1998:f00:2::1


On Tue, Dec 10, 2019 at 7:37 AM Siji Sunny 
wrote:

> And what's in dns_srv.conf file ?
>
> On Tue, Dec 10, 2019 at 3:54 PM Geert Stappers <
> geert.stapp...@hendrikx-itc.nl> wrote:
>
>> On Tue, Dec 10, 2019 at 03:17:41AM -0500, John Siu wrote:
>> > On Tue, Dec 10, 2019 at 3:07 AM Siji Sunny wrote:
>> > > On Tue, Dec 10, 2019 at 12:52 PM John Siu wrote:
>> > >> I tried with "default" in its own line, that gives error too.
>> > >
>> > > Will you please share dnsmasq.conf here.
>>
>> Which could and should have shared in the original post
>>
>>
>> > Following is my config:
>> >
>> > # DNS
>> >
>> > #dns-forward-max=4
>> >
>> > # LOG
>> > #log-queries=extra # log all query for debugging
>> > #log-dhcp
>> > quiet-dhcp
>> > quiet-dhcp6
>> > quiet-ra
>> >
>> > except-interface=enp1s0
>> > #listen-address=::1,127.0.0.1,172.168.168.1
>> > no-poll # don't poll /etc/resolv.con for change
>> > no-resolv # don't use /etc/resolv.conf
>> > bogus-priv #
>> > domain-needed # don't query upstream with hostname only
>> > expand-hosts # expend hostname with local domain
>> > rebind-localhost-ok
>> > #stop-dns-rebind # don't replace entry with local ip
>> >
>> > neg-ttl=3600
>> > min-cache-ttl=3600
>> > cache-size=1
>> > #log-async=10
>> >
>> > ## local domain
>> > domain=int.johnsiu.com
>> > local=/int.johnsiu.com/
>> > rebind-domain-ok=/int.johnsiu.com/
>> >
>> > ## Server
>> > servers-file=/etc/dnsmasq.d/extra/dns_srv.conf
>>
>> Yeah
>>
>>
>> > ## forward dns : ipv4
>> > #server=8.8.8.8
>> > #server=8.8.4.4
>> > #server=1.1.1.1
>> > #server=1.0.0.1
>> > #server=209.18.47.61
>> > #server=209.18.47.62
>> > #server=209.18.47.63
>> >
>> > ## forward dns : ipv6
>> > #server=2001:4860:4860::
>> > #server=2001:4860:4860::8844
>> > #server=2606:4700:4700::
>> > #server=2606:4700:4700::1001
>> > #server=2001:1998:f00:1::1
>> > #server=2001:1998:f00:2::1
>> >
>> > # dhcp : ipv4
>> >
>> > ## LAN
>> > dhcp-range=tag:lan,172.16.168.130,172.16.168.250,72h
>> > dhcp-option=tag:lan,option:router,172.16.168.1 # option 3 default gw
>> > dhcp-option=tag:lan,6,172.16.168.1 # option 6 dns
>> > dhcp-option=tag:lan,option:ntp-server,172.16.168.1
>> > ## DMZ
>> > dhcp-range=tag:dmz,10.10.10.100,10.10.10.120,72h
>> > dhcp-option=tag:dmz,option:router,10.10.10.1 # option 3 default gw
>> > dhcp-option=tag:dmz,6,10.10.10.1 # option 6 dns
>> > dhcp-option=tag:dmz,option:ntp-server,10.10.10.1
>> >
>> > # dhcp : ipv6
>> >
>> > enable-ra
>> > # Construct a valid IPv6 range from reading the address set on the
>> interface.
>> > # The ::1 part refers to the ifid in dhcp6c.conf. Make sure you get
>> this right or dnsmasq will get confused.
>> > dhcp-range=tag:lan,::1,constructor:lan,ra-names,12h
>> > dhcp-range=tag:dmz,::1,constructor:dmz,ra-names,12h
>> >
>> > # Static dhcp
>> > dhcp-hostsfile=/etc/dnsmasq.d/extra/lan_dmz.host
>> >
>> >
>>
>> ___
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>> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
>>
>
>
> --
> Siji
>
>   |
>  |
> 
>
> ___
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Re: [Dnsmasq-discuss] "--all-servers" always on?

2019-12-10 Thread Siji Sunny

And what's in dns_srv.conf file ?

On Tue, Dec 10, 2019 at 3:54 PM Geert Stappers <
geert.stapp...@hendrikx-itc.nl> wrote:

> On Tue, Dec 10, 2019 at 03:17:41AM -0500, John Siu wrote:
> > On Tue, Dec 10, 2019 at 3:07 AM Siji Sunny wrote:
> > > On Tue, Dec 10, 2019 at 12:52 PM John Siu wrote:
> > >> I tried with "default" in its own line, that gives error too.
> > >
> > > Will you please share dnsmasq.conf here.
>
> Which could and should have shared in the original post
>
>
> > Following is my config:
> >
> > # DNS
> >
> > #dns-forward-max=4
> >
> > # LOG
> > #log-queries=extra # log all query for debugging
> > #log-dhcp
> > quiet-dhcp
> > quiet-dhcp6
> > quiet-ra
> >
> > except-interface=enp1s0
> > #listen-address=::1,127.0.0.1,172.168.168.1
> > no-poll # don't poll /etc/resolv.con for change
> > no-resolv # don't use /etc/resolv.conf
> > bogus-priv #
> > domain-needed # don't query upstream with hostname only
> > expand-hosts # expend hostname with local domain
> > rebind-localhost-ok
> > #stop-dns-rebind # don't replace entry with local ip
> >
> > neg-ttl=3600
> > min-cache-ttl=3600
> > cache-size=1
> > #log-async=10
> >
> > ## local domain
> > domain=int.johnsiu.com
> > local=/int.johnsiu.com/
> > rebind-domain-ok=/int.johnsiu.com/
> >
> > ## Server
> > servers-file=/etc/dnsmasq.d/extra/dns_srv.conf
>
> Yeah
>
>
> > ## forward dns : ipv4
> > #server=8.8.8.8
> > #server=8.8.4.4
> > #server=1.1.1.1
> > #server=1.0.0.1
> > #server=209.18.47.61
> > #server=209.18.47.62
> > #server=209.18.47.63
> >
> > ## forward dns : ipv6
> > #server=2001:4860:4860::
> > #server=2001:4860:4860::8844
> > #server=2606:4700:4700::
> > #server=2606:4700:4700::1001
> > #server=2001:1998:f00:1::1
> > #server=2001:1998:f00:2::1
> >
> > # dhcp : ipv4
> >
> > ## LAN
> > dhcp-range=tag:lan,172.16.168.130,172.16.168.250,72h
> > dhcp-option=tag:lan,option:router,172.16.168.1 # option 3 default gw
> > dhcp-option=tag:lan,6,172.16.168.1 # option 6 dns
> > dhcp-option=tag:lan,option:ntp-server,172.16.168.1
> > ## DMZ
> > dhcp-range=tag:dmz,10.10.10.100,10.10.10.120,72h
> > dhcp-option=tag:dmz,option:router,10.10.10.1 # option 3 default gw
> > dhcp-option=tag:dmz,6,10.10.10.1 # option 6 dns
> > dhcp-option=tag:dmz,option:ntp-server,10.10.10.1
> >
> > # dhcp : ipv6
> >
> > enable-ra
> > # Construct a valid IPv6 range from reading the address set on the
> interface.
> > # The ::1 part refers to the ifid in dhcp6c.conf. Make sure you get this
> right or dnsmasq will get confused.
> > dhcp-range=tag:lan,::1,constructor:lan,ra-names,12h
> > dhcp-range=tag:dmz,::1,constructor:dmz,ra-names,12h
> >
> > # Static dhcp
> > dhcp-hostsfile=/etc/dnsmasq.d/extra/lan_dmz.host
> >
> >
>
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> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
>


-- 
Siji

-- 
   |  
 |  




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Re: [Dnsmasq-discuss] "--all-servers" always on?

2019-12-10 Thread Geert Stappers

On Tue, Dec 10, 2019 at 03:17:41AM -0500, John Siu wrote:
> On Tue, Dec 10, 2019 at 3:07 AM Siji Sunny wrote:
> > On Tue, Dec 10, 2019 at 12:52 PM John Siu wrote:
> >> I tried with "default" in its own line, that gives error too.
> >
> > Will you please share dnsmasq.conf here.

Which could and should have shared in the original post


> Following is my config:
> 
> # DNS
> 
> #dns-forward-max=4
> 
> # LOG
> #log-queries=extra # log all query for debugging
> #log-dhcp
> quiet-dhcp
> quiet-dhcp6
> quiet-ra
> 
> except-interface=enp1s0
> #listen-address=::1,127.0.0.1,172.168.168.1
> no-poll # don't poll /etc/resolv.con for change
> no-resolv # don't use /etc/resolv.conf
> bogus-priv #
> domain-needed # don't query upstream with hostname only
> expand-hosts # expend hostname with local domain
> rebind-localhost-ok
> #stop-dns-rebind # don't replace entry with local ip
> 
> neg-ttl=3600
> min-cache-ttl=3600
> cache-size=1
> #log-async=10
> 
> ## local domain
> domain=int.johnsiu.com
> local=/int.johnsiu.com/
> rebind-domain-ok=/int.johnsiu.com/
> 
> ## Server
> servers-file=/etc/dnsmasq.d/extra/dns_srv.conf

Yeah


> ## forward dns : ipv4
> #server=8.8.8.8
> #server=8.8.4.4
> #server=1.1.1.1
> #server=1.0.0.1
> #server=209.18.47.61
> #server=209.18.47.62
> #server=209.18.47.63
> 
> ## forward dns : ipv6
> #server=2001:4860:4860::
> #server=2001:4860:4860::8844
> #server=2606:4700:4700::
> #server=2606:4700:4700::1001
> #server=2001:1998:f00:1::1
> #server=2001:1998:f00:2::1
> 
> # dhcp : ipv4
> 
> ## LAN
> dhcp-range=tag:lan,172.16.168.130,172.16.168.250,72h
> dhcp-option=tag:lan,option:router,172.16.168.1 # option 3 default gw
> dhcp-option=tag:lan,6,172.16.168.1 # option 6 dns
> dhcp-option=tag:lan,option:ntp-server,172.16.168.1
> ## DMZ
> dhcp-range=tag:dmz,10.10.10.100,10.10.10.120,72h
> dhcp-option=tag:dmz,option:router,10.10.10.1 # option 3 default gw
> dhcp-option=tag:dmz,6,10.10.10.1 # option 6 dns
> dhcp-option=tag:dmz,option:ntp-server,10.10.10.1
> 
> # dhcp : ipv6
> 
> enable-ra
> # Construct a valid IPv6 range from reading the address set on the interface.
> # The ::1 part refers to the ifid in dhcp6c.conf. Make sure you get this 
> right or dnsmasq will get confused.
> dhcp-range=tag:lan,::1,constructor:lan,ra-names,12h
> dhcp-range=tag:dmz,::1,constructor:dmz,ra-names,12h
> 
> # Static dhcp
> dhcp-hostsfile=/etc/dnsmasq.d/extra/lan_dmz.host
> 
> 

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Re: [Dnsmasq-discuss] "--all-servers" always on?

2019-12-10 Thread Siji Sunny

Will you please share dnsmasq.conf here.


On Tue, Dec 10, 2019 at 12:52 PM John Siu  wrote:

> I tried with "default" in its own line, that gives error too.
>
> On Tue, Dec 10, 2019 at 2:16 AM Siji Sunny <
> siji.su...@sugarboxnetworks.com> wrote:
>
>>
>> There is no "default" option. It actually give error if I add it by
>>> itself or "all-servers=default".
>>>
>> It not "all-servers=default", just "default"
>>
>>
>>> I went through the man page again and there is no other option affecting
>>> this behavior. I am starting to think this is a bug.
>>>
>>> On Tue, Dec 10, 2019 at 1:03 AM Siji Sunny <
>>> siji.su...@sugarboxnetworks.com> wrote:
>>>

 It should be off, base on manpage. And I don't know how to set a "off"
> to it.
>

 Adding "default" inside the config file, may help you. With reference
 to man page, default option will send queries to just one server.


> On Tue, Dec 10, 2019 at 12:45 AM Siji Sunny <
> siji.su...@sugarboxnetworks.com> wrote:
>
>>
>> Base on my understanding of the manpage, "all-servers" means dnsmasq
>>> will send query to all servers at once and use the 1st response.
>>>
>>> I am seeing all my queries, if not already in cache, are sent to all
>>> servers configured. But I don't have "all-servers" set. I want to turn 
>>> off
>>> this behavior.
>>>
>>
>> Interesting, we used to enable it by adding the entry all-servers @
>> dnsmasq.conf file. And by default its turned-off.
>>
>>
>>>
>>> On Tue, Dec 10, 2019 at 12:29 AM Siji Sunny <
>>> siji.su...@sugarboxnetworks.com> wrote:
>>>

 OS: Ubuntu 18.04 with all updates
> dnsmasq version: 2.79-1
>
> According to man page:
>
> --all-servers
> By default, when dnsmasq has more than one upstream server
> available, it will send queries to just one server. Setting this flag
> forces dnsmasq to send all queries to all available servers. The reply
>  from  the  server  which  answers first will be returned to the 
> original
> requester.
>
> I don't have that flag in command line or in the config file.
> However with "log-queries=extra" in config file, I am seeing 
> following:
>
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> query[A] news.com from 10.10.10.101
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 2001:1998:f00:2::1
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 2001:1998:f00:1::1
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 2606:4700:4700::1001
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 2606:4700:4700::
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 2001:4860:4860::8844
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 2001:4860:4860::
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 209.18.47.63
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 209.18.47.62
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 209.18.47.61
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 1.0.0.1
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 1.1.1.1
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 8.8.4.4
> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
> forwarded news.com to 8.8.8.8
> Dec 09 11:29:25 door dnsmasq[9403]: 3640 10.10.10.101/49351 reply
> news.com is 35.190.79.82
>
> Is --all-servers behavior changed to default on? Is there a way to
> revert it?
>

 Dear John,
 If I understood correctly, option all-servers will enable dnsmasq
 to send the resolve query to the secondary dns server defined, if its
 failed to resolve from the first one.


>
> Thank you!
>
> John Siu
> ___
> Dnsmasq-discuss mailing list
> Dnsmasq-discuss@lists.thekelleys.org.uk
> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
>


 --
 Siji

   |
  |

Re: [Dnsmasq-discuss] "--all-servers" always on?

2019-12-10 Thread John Siu

Following is my config:

# DNS

#dns-forward-max=4

# LOG
#log-queries=extra # log all query for debugging
#log-dhcp
quiet-dhcp
quiet-dhcp6
quiet-ra

except-interface=enp1s0
#listen-address=::1,127.0.0.1,172.168.168.1
no-poll # don't poll /etc/resolv.con for change
no-resolv # don't use /etc/resolv.conf
bogus-priv #
domain-needed # don't query upstream with hostname only
expand-hosts # expend hostname with local domain
rebind-localhost-ok
#stop-dns-rebind # don't replace entry with local ip

neg-ttl=3600
min-cache-ttl=3600
cache-size=1
#log-async=10

## local domain
domain=int.johnsiu.com
local=/int.johnsiu.com/
rebind-domain-ok=/int.johnsiu.com/

## Server
servers-file=/etc/dnsmasq.d/extra/dns_srv.conf
## forward dns : ipv4
#server=8.8.8.8
#server=8.8.4.4
#server=1.1.1.1
#server=1.0.0.1
#server=209.18.47.61
#server=209.18.47.62
#server=209.18.47.63

## forward dns : ipv6
#server=2001:4860:4860::
#server=2001:4860:4860::8844
#server=2606:4700:4700::
#server=2606:4700:4700::1001
#server=2001:1998:f00:1::1
#server=2001:1998:f00:2::1

# dhcp : ipv4

## LAN
dhcp-range=tag:lan,172.16.168.130,172.16.168.250,72h
dhcp-option=tag:lan,option:router,172.16.168.1 # option 3 default gw
dhcp-option=tag:lan,6,172.16.168.1 # option 6 dns
dhcp-option=tag:lan,option:ntp-server,172.16.168.1
## DMZ
dhcp-range=tag:dmz,10.10.10.100,10.10.10.120,72h
dhcp-option=tag:dmz,option:router,10.10.10.1 # option 3 default gw
dhcp-option=tag:dmz,6,10.10.10.1 # option 6 dns
dhcp-option=tag:dmz,option:ntp-server,10.10.10.1

# dhcp : ipv6

enable-ra
# Construct a valid IPv6 range from reading the address set on the
interface.
# The ::1 part refers to the ifid in dhcp6c.conf. Make sure you get this
right or dnsmasq will get confused.
dhcp-range=tag:lan,::1,constructor:lan,ra-names,12h
dhcp-range=tag:dmz,::1,constructor:dmz,ra-names,12h

# Static dhcp
dhcp-hostsfile=/etc/dnsmasq.d/extra/lan_dmz.host


On Tue, Dec 10, 2019 at 3:07 AM Siji Sunny 
wrote:

> Will you please share dnsmasq.conf here.
>
>
> On Tue, Dec 10, 2019 at 12:52 PM John Siu  wrote:
>
>> I tried with "default" in its own line, that gives error too.
>>
>> On Tue, Dec 10, 2019 at 2:16 AM Siji Sunny <
>> siji.su...@sugarboxnetworks.com> wrote:
>>
>>>
>>> There is no "default" option. It actually give error if I add it by
 itself or "all-servers=default".

>>> It not "all-servers=default", just "default"
>>>
>>>
 I went through the man page again and there is no other option
 affecting this behavior. I am starting to think this is a bug.

 On Tue, Dec 10, 2019 at 1:03 AM Siji Sunny <
 siji.su...@sugarboxnetworks.com> wrote:

>
> It should be off, base on manpage. And I don't know how to set a "off"
>> to it.
>>
>
> Adding "default" inside the config file, may help you. With reference
> to man page, default option will send queries to just one server.
>
>
>> On Tue, Dec 10, 2019 at 12:45 AM Siji Sunny <
>> siji.su...@sugarboxnetworks.com> wrote:
>>
>>>
>>> Base on my understanding of the manpage, "all-servers" means dnsmasq
 will send query to all servers at once and use the 1st response.

 I am seeing all my queries, if not already in cache, are sent to
 all servers configured. But I don't have "all-servers" set. I want to 
 turn
 off this behavior.

>>>
>>> Interesting, we used to enable it by adding the entry all-servers @
>>> dnsmasq.conf file. And by default its turned-off.
>>>
>>>

 On Tue, Dec 10, 2019 at 12:29 AM Siji Sunny <
 siji.su...@sugarboxnetworks.com> wrote:

>
> OS: Ubuntu 18.04 with all updates
>> dnsmasq version: 2.79-1
>>
>> According to man page:
>>
>> --all-servers
>> By default, when dnsmasq has more than one upstream server
>> available, it will send queries to just one server. Setting this flag
>> forces dnsmasq to send all queries to all available servers. The 
>> reply
>>  from  the  server  which  answers first will be returned to the 
>> original
>> requester.
>>
>> I don't have that flag in command line or in the config file.
>> However with "log-queries=extra" in config file, I am seeing 
>> following:
>>
>> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
>> query[A] news.com from 10.10.10.101
>> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
>> forwarded news.com to 2001:1998:f00:2::1
>> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
>> forwarded news.com to 2001:1998:f00:1::1
>> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
>> forwarded news.com to 2606:4700:4700::1001
>> Dec 09 11:29:24 door dnsmasq[9403]: 3640 10.10.10.101/49351
>> forwarded news.com to

Re: [Dnsmasq-discuss] "--all-servers" always on?

Re: [Dnsmasq-discuss] "--all-servers" always on?

Re: [Dnsmasq-discuss] "--all-servers" always on?

Re: [Dnsmasq-discuss] "--all-servers" always on?

Re: [Dnsmasq-discuss] "--all-servers" always on?

Re: [Dnsmasq-discuss] "--all-servers" always on?

Re: [Dnsmasq-discuss] "--all-servers" always on?

Re: [Dnsmasq-discuss] "--all-servers" always on?

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