[Dnsmasq-discuss] No more random source port

[Albert ARIBAUD]

Hi Risto,

Le Mon, 20 Mar 2017 21:22:55 +0200
Risto Suominen <risto.suominen at gmail.com> a écrit:

> 2017-03-20 21:05 UTC+02.00, Albert ARIBAUD <albert.aribaud at free.fr>:
> >
> > (I don't see the point of this restruction but hey, that's TP-Link's
> > choice.)
> >  
> I might use the word 'bug' instead of 'choice'.
> >
> > Ok, so the OS is not limiting the ports per se.
> >
> > You said the command line did not change. Which is it exactly? I
> > usually do a "cat /proc/<pid-of-dnsmasq>/cmdline | tr '\0' '\n' to
> > make sure I see the real command line of the running dnsmasq.
> >  
> /usr/sbin/dnsmasq
> --no-resolv
> --keep-in-foreground
> --no-hosts
> --bind-interfaces
> --pid-file=/var/run/NetworkManager/dnsmasq.pid
> --listen-address=127.0.1.1
> --cache-size=0
> --conf-file=/dev/null
> --proxy-dnssec
> --enable-dbus=org.freedesktop.NetworkManager.dnsmasq
> --conf-dir=/etc/NetworkManager/dnsmasq.d
> 
> Risto

Ok, so exactly the same options as I have on my Xubuntu, and my local
dnsmasq is 2.75 too, and it uses random ports.

So, back to the basics: let's start with a capture of DNS traffic. Can
you run wireshark or tcpdump on your Lubuntu and capture a few requests
for resolution?

Amicalement,
-- 
Albert.