Dnsmasq restarts with all settings lost

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jujo_si
DD-WRT Novice


Joined: 21 Mar 2017
Posts: 10
PostPosted: Tue Mar 21, 2017 12:03    Post subject: Dnsmasq restarts with all settings lost Reply with quote
Hello,

I am doing the Ad-Blocking in DDWRT using a script in Administration>Commands>Firewall

After router is rebooted and/or
after I run the script, so I run /tmp/.rc_firewall, I get

root@Bambi:~# ps | grep dns
1069 root 1256 S inadyn -u USER_ID -p USER_PASSWORD --input_file /tmp/ddns/
2684 nobody 1972 S /usr/sbin/dnsmasq --conf-file=/tmp/dnsmasq.conf
2743 root 1116 S grep dns


And all Ad blocking works. But after 30 minutes if I check again I get


root@Bambi:~# ps | grep dns
1069 root 1256 S inadyn -u jujo_si -p alabama --input_file /tmp/ddns/
2785 root 1136 S dnsmasq -u root -g root --conf-file=/tmp/dnsmasq.con
3154 root 1116 S grep dns
root@Bambi:~#

It may happen in 30 minutes or may happen in a few hours, but very often when I check in the morning my Ad blocking doesn't work.

So somebody is killing my /usr/sbin/dnsmasq and is starting a new command which doesn't have my custom Ad blocking settings anymore.
Who is killing my /usr/sbin/dnsmasq and how to prevent this?

Why is the user nobody and not root, I did start the script as root?

My Firewall script is like this:

Code:

#!/bin/sh
logger WAN up script executing

     
logger Downloading http://www.mvps.org/winhelp2002/hosts.txt
echo "Downloading http://www.mvps.org/winhelp2002/hosts.txt"
wget -O - http://www.mvps.org/winhelp2002/hosts.txt | grep 0.0.0.0 |
      sed 's/[[:space:]]*#.*$//g;' |
      grep -v localhost | tr ' ' '\t' |
      tr -s '\t' | tr -d '\015' | sort -u >/tmp/hosts1

if [[ -s /tmp/hosts1 ]]; then
   logger Success downloading file
   echo "Success downloading file"

   echo "0.0.0.0 ads.youtube.com" >> /tmp/hosts1
   echo "0.0.0.0 s0.2mdn.net" >> /tmp/hosts1
   echo "0.0.0.0 s1.2mdn.net" >> /tmp/hosts1
   echo "0.0.0.0 googleads.g.doubleclick.net" >> /tmp/hosts1
   echo "0.0.0.0 pubads.g.doubleclick.net" >> /tmp/hosts1
   echo "0.0.0.0 ad.doubleclick.net" >> /tmp/hosts1
   echo "0.0.0.0 static.doubleclick.net" >> /tmp/hosts1

   mv /tmp/hosts1 /tmp/hosts0
fi

      
grep addn-hosts /tmp/dnsmasq.conf ||
echo "addn-hosts=/tmp/hosts0" >>/tmp/dnsmasq.conf
grep address=/ /tmp/dnsmasq.conf ||
echo -e "address=/applovin.com/0.0.0.0\n\
address=/adcolony.com/0.0.0.0\n\
address=/unity3d.com/0.0.0.0\n\
address=/chartboost.com/0.0.0.0\n\
address=/vungle.com/0.0.0.0\n\
address=/inmobi.com/0.0.0.0\n\
address=/appnext.com/0.0.0.0\n\
address=/mobilecore.com/0.0.0.0\n\
address=/mopub.com/0.0.0.0\n\
address=/revmobmobileadnetwork.com/0.0.0.0\n\
address=/revmob.com/0.0.0.0\n\
address=/playhaven.com/0.0.0.0\n\
address=/leadbolt.com/0.0.0.0\n\
address=/mopub.com/0.0.0.0\n\
address=/admob.com/0.0.0.0\n\
address=/applifier.com/0.0.0.0\n\
address=/gameanalytics.com/0.0.0.0\n\
address=/supersonic.com/0.0.0.0\n\
address=/supersonicads.com/0.0.0.0\n\
# address=/graph.facebook.com/0.0.0.0\n\
address=/airpush.com/0.0.0.0\n\
address=/mydas.mobi/0.0.0.0\n\
address=/mobfox.com/0.0.0.0\n\
address=/millennialmedia.com/0.0.0.0\n\
address=/smaato.net/0.0.0.0\n\
address=/flurry.com/0.0.0.0\n\
address=/manage.com/0.0.0.0\n\
address=/realzeit.io/0.0.0.0\n\
address=/startapp.com/0.0.0.0" >>/tmp/dnsmasq.conf
   logger Restarting dnsmasq
   echo "Restarting dnsmasq"
   killall dnsmasq
/usr/sbin/dnsmasq --conf-file=/tmp/dnsmasq.conf
   
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Joined: 28 Jun 2011
Posts: 580
Location: Vilnius, Lithuania
PostPosted: Mon Mar 27, 2017 15:03    Post subject: Re: Dnsmasq restarts with all settings lost Reply with quote
jujo_si wrote:
killall dnsmasq
/usr/sbin/dnsmasq --conf-file=/tmp/dnsmasq.conf
Code:
killall -HUP dnsmasq

Better way to restart service IMO (if config file is default)
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[Ramips] Nexx WT3020F Openwrt @kernel #4.14.167 (OpenVPN server, Wireguard server, AD blocking, SQM QOS, USB)
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