Testing adblock install

[gatorback]

I am interested in tests that can diagnose the 'advance method' adblock procedure:

http://www.snbforums.com/threads/adblocking-with-combined-hosts-file.15309/

Per the procedure, these files were installed:

root@ROUTER:/tmp/home/root# ls -l /jffs/scripts/services-start
-rwxr-xr-x    1 root  root           141 Oct 13 23:49
/jffs/scripts/services-start
root@ROUTER:/tmp/home/root# ls -l /jffs/configs/dnsmasq.conf.add
-rw-r--r--    1 root  root           168 Oct 13 23:52
/jffs/configs/dnsmasq.conf.add
root@ROUTER:/tmp/home/root# ls -l  /jffs/scripts/update-hosts.sh
-rwxr-xr-x    1 root  root           946 Oct 13 23:54
/jffs/scripts/update-hosts.sh
root@ROUTER:/tmp/home/root# ls -l  /tmp/mnt/sda1/hosts/whitelist.txt
-rw-rw-rw-    1 root  root            11 Oct 14 00:07
/tmp/mnt/sda1/hosts/whitelist.txt
root@ROUTER:/tmp/home/root# ls -l  /tmp/mnt/sda1/hosts/blacklist.txt
-rw-rw-rw-    1 root  root             0 Oct 14 00:07
/tmp/mnt/sda1/hosts/blacklist.txt

root@ROUTER:/tmp/home/root# ls -l /jffs/configs/dnsmasq.conf.add
-rw-r--r--    1 root  root           168 Oct 13 23:52

The last entry, dnsmasq.conf.add is not executable so I added execute permissions and restarted the dnsmasq service:

root@ROUTER:/tmp/home/root# chmod 755 /jffs/configs/dnsmasq.conf.add
root@ROUTER:/tmp/home/root# ls -l /jffs/configs/dnsmasq.conf.add
-rwxr-xr-x  1 root  root  168 Oct 13 23:52
/jffs/configs/dnsmasq.conf.add
root@ROUTER:/tmp/home/root# service restart_dnsmasq

I flushed the DNS cache in my win7 box:

ipconfig  /flushdns

I assume that the blocked sites are listed here and are redirected 0.0.0.0

tail -n 11 /tmp/mnt/sda1/hosts/hosts.blocked

ping or nslookup did not resolve to 0.0.0.0 I did reboot the device however, no improvement.

Diagnostic Questions
1) Is my expectation of nslookup or ping resolving to 0.0.0.0 correct?
2) Is there a command that can verify that dnsmasq.conf.add has entered the hosts.blocked entries to the DNS memory table? Maybe there is a command to display what is in the DNS memory table?
3) Are there any other diagnostics that can be performed to isolate / identify the issue?
4) Is there any other info I can provide?

Thank you for actionable and constructive suggestions.

 

[thelonelycoder]

The last entry, dnsmasq.conf.add is not executable so I added execute permissions and restarted the dnsmasq service:

Only files in /jffs/scripts need that permission. No need to make files in /jffs/configs/ executable.

 

[thelonelycoder]

2) Is there a command that can verify that dnsmasq.conf.add has entered the hosts.blocked entries to the DNS memory table? Maybe there is a command to display what is in the DNS memory table?

Just restart dnsmasq and look at the log. It says something like this:

Oct  9 23:23:01 dnsmasq[908]: read /etc/hosts - 5 addresses
Oct  9 23:23:01 dnsmasq[908]: read /tmp/mnt/sda1/hosts/blacklist.txt - 51 addresses
Oct  9 23:23:07 dnsmasq[908]: read /tmp/mnt/sda1/hosts/hosts.blocked.txt - [a lot of] addresses
Oct  9 23:23:07 dnsmasq[908]: read /etc/hosts.dnsmasq - 4 addresses

 

[elorimer]

You may need to run update.hosts.sh first to create hosts.blocked.txt

 

[thelonelycoder]

You may need to run update.hosts.sh first to create hosts.blocked.txt

Yep, looks like @gatorback did not heed the instruction "Reboot and enjoy!".

 

[gatorback]

@thelonelycoder : Thanks for commenting and providing the excellent diagnostic example. I'm sure that other students will benefit from this. I have found that when testing does not go as expected rebooting the router can (sometimes) save a lot of time and advance to the finish line.

Recent changes include:

1) Change Merlin Firmware Setting:

Administration -> Setting ->"Enable JFFS custom scripts and configs'  = yes

It is unclear to me if this setting was preventing /tmp/mnt/sda1/hosts/hosts.blocked from being read into memory. Any insight is appreciated.

2) restart dnsmasq

root@ROUTER:/tmp# service restart_dnsmasq
root@ROUTER:/tmp# tail -n 20 /tmp/syslog.log
Oct 14 15:17:03 rc_service: service 7511:notify_rc restart_dnsmasq
Oct 14 15:17:03 dnsmasq[485]: exiting on receipt of SIGTERM
Oct 14 15:17:03 custom config: Appending content of /jffs/configs/dnsmasq.conf.add.
Oct 14 15:17:04 dnsmasq[7515]: started, version 2.73rc9 cachesize 1500
Oct 14 15:17:04 dnsmasq[7515]: warning: interface ppp1* does not currently exist
Oct 14 15:17:04 dnsmasq[7515]: asynchronous logging enabled, queue limit is 5 messages
Oct 14 15:17:04 dnsmasq-dhcp[7515]: DHCP, IP range 192.168.8.230 -- 192.168.8.254, lease time 1d
Oct 14 15:17:04 dnsmasq[7515]: using local addresses only for domain T-mobile.com
Oct 14 15:17:04 dnsmasq[7515]: read /etc/hosts - 5 addresses
Oct 14 15:17:04 dnsmasq[7515]: read /tmp/mnt/sda1/hosts/blacklist.txt - 0 addresses
Oct 14 15:17:04 dnsmasq[7515]: read /tmp/mnt/sda1/hosts/hosts.blocked - 71886 addresses
Oct 14 15:17:04 dnsmasq[7515]: read /etc/hosts.dnsmasq - 4 addresses
Oct 14 15:17:04 dnsmasq-dhcp[7515]: read /etc/ethers - 4 addresses
Oct 14 15:17:04 dnsmasq[7515]: using nameserver 209.18.47.62#53 for domain local
Oct 14 15:17:04 dnsmasq[7515]: using nameserver 209.18.47.62#53 for domain nyc.rr.com
Oct 14 15:17:04 dnsmasq[7515]: using nameserver 209.18.47.61#53 for domain local
Oct 14 15:17:04 dnsmasq[7515]: using nameserver 209.18.47.61#53 for domain nyc.rr.com
Oct 14 15:17:04 dnsmasq[7515]: using local addresses only for domain T-mobile.com
Oct 14 15:17:04 dnsmasq[7515]: using nameserver 209.18.47.61#53
Oct 14 15:17:04 dnsmasq[7515]: using nameserver 209.18.47.62#53

This was the first time I could find an instance of:

Oct 14 15:17:04 dnsmasq[7515]: read /tmp/mnt/sda1/hosts/hosts.blocked - 71886 addresses

I accept this log as an indicator that the blocked hosts are loaded into memory. I am assuming that these addresses are read into RAM: if this is true, I wonder if this a command to list these addresses to the command console?

Testing from the router command-line indicates success:

root@ROUTER:/tmp# nslookup zs.dhl.de
Server:  127.0.0.1
Address 1: 127.0.0.1 localhost.localdomain
Name:  zs.dhl.de
Address 1: 0.0.0.0 0.0.0.0

root@ROUTER:/tmp# nslookup zz.zeroredirect1.com
Server:  127.0.0.1
Address 1: 127.0.0.1 localhost.localdomain
Name:  zz.zeroredirect1.com
Address 1: 0.0.0.0 0.0.0.0

root@ROUTER:/tmp# ping  zz.zeroredirect1.com
PING zz.zeroredirect1.com (0.0.0.0): 56 data bytes
64 bytes from 127.0.0.1: seq=0 ttl=64 time=0.303 ms
64 bytes from 127.0.0.1: seq=1 ttl=64 time=0.168 ms

 

[thelonelycoder]

1) Change Merlin Firmware Setting
This is in the instructions, please read again.

The rest looks good to me and the scripts do the job. Problem solved.