PfBlockerNG v2.0 w/DNSBL

senser

I found a way to use DNSBL on my transparent bridge! :D
I configure DNSBL to listen on LAN at 10.10.10.1 as usual. But then (because I never get a reply from 10.10.10.1) I just reject all connections to "This Firewall" on ports 8081 and 8443.
I won't get any stats or 1x1 gifs but web sites load fast and without ads. :)

ProxyMoron

Hey all,
I'm trying to set up PFBlockerNG with GeoIP to block everything apart from my country by only PERMITTING my country, rather than selecting everything apart from my country and blocking inbound.

So under GeoIP i have selected <mycountry>under Top 20 and then Permit Inbound

This creates a permit rule under floating rules but i think im confusing myself as to what is happening here.

I have a web server running on the WAN, for which i have a WAN rule that permits any source to port 80 and 443. If there is a floating rule that allows UK IP's is that not allowing all UK IP's / Ports into my network? At what point does the float rule come into it?

What i want is for the firewall to check if the source is from the UK, if not block, then if its destined for port 80 or 443, if not block.

So under General - Rule Order should i select:-

pfB_Pass/Match | pfSense Pass/Match | pfB_Block/Reject | pfSense Block/Reject

or (leaning to this one)

pfSense Pass/Match | pfB_Pass/Match | pfB_Block/Reject | pfSense Block/Reject

Thinking it will match on 80 or 443 then match on UK.

Or something else, am i going about this the correct way? I kind of expected a blocking rule somewhere for ! <mycountry>Sorry - getting my head in a right pickle here. ;D</mycountry></mycountry>

RonpfS

https://forum.pfsense.org/index.php?topic=102470.msg647719#msg647719

Then you can install or re-install the pfBlockerNG 2.1.1_2.
The install should update the MaxMind (this take 5+ minutes) and proceed to completion.

nikkon

hi all,

i have performed this change, still the pfBlockerNG is not seen anymore in gui.
anyone had this before?

RonpfS

Where does it fails when you install it ? There must be some hints in the installation logs, system log or pfblockerng log.

nikkon

php /usr/local/www/pfblockerng/pfblockerng.php dc

and as it's shown in the logs :

Download Process Starting [ 08/15/16 21:18:57 ]
/usr/local/share/GeoIP/GeoIP.dat.gz 200 OK
/usr/local/share/GeoIP/GeoIPv6.dat.gz 200 OK
/usr/local/share/GeoIP/GeoLite2-Country-CSV.zip 200 OK
/var/db/pfblockerng/top-1m.csv.zip 200 OK
Download Process Ended [ 08/15/16 21:19:31 ]

Country code update Start
Converting MaxMind Country databases for pfBlockerNG.
Processing ISO IPv4 Continent/Country Data
Processing ISO IPv6 Continent/Country Data
Creating pfBlockerNG Continent XML files
IPv4 Africa
IPv6 Africa
IPv4 Antarctica
IPv6 Antarctica
IPv4 Asia
IPv6 Asia
IPv4 Europe
IPv6 Europe
IPv4 North America
IPv6 North America
IPv4 Oceania
IPv6 Oceania
IPv4 South America
IPv6 South America
IPv4 Proxy and Satellite
IPv6 Proxy and Satellite
IPv4 TOP 20
IPv6 TOP 20
Saving pfBlockerNG Reputation TAB
Country Code Update Ended - [ 08/15/16 21:24:37 ]

–-----

tail -f pfblockerng.log

DNSBL - Adding Unbound custom 'include' option

Saving new DNSBL web server configuration to port [ 8081 and 8443 ]
Saving pfSense config…
VIP address configured. Widget Packet statistics reset.
Restarting Service DNSBL...

**Saving configuration [ 08/15/16 19:16:28 ] …
Restarting Service DNSBL...

and stays like this for 20 minutes.

missing.png_thumb

RonpfS

Looks like the MaxMind database creation went ok.
Can you try to reinstall pfBlockerNG?

nikkon

Just did this:

install log looks like :

Upgrading pfSense-pkg-pfBlockerNG…
Updating pfSense-core repository catalogue...
pfSense-core repository is up-to-date.
Updating pfSense repository catalogue...
pfSense repository is up-to-date.
All repositories are up-to-date.
Checking integrity... done (0 conflicting)
The following 1 package(s) will be affected (of 0 checked):

Installed packages to be REINSTALLED:
pfSense-pkg-pfBlockerNG-2.1.1_2 [pfSense]

Number of packages to be reinstalled: 1
[1/1] Reinstalling pfSense-pkg-pfBlockerNG-2.1.1_2…
[1/1] Extracting pfSense-pkg-pfBlockerNG-2.1.1_2: …....... done
Removing pfBlockerNG components...
Menu items... done.
Services... done.
Loading package instructions...
Removing pfBlockerNG...cat: /var/db/pfblockerng/dnsbl/.txt: No such file or directory
All customizations/data will be retained... done.
Saving updated package information...
overwrite!
Loading package configuration... done.
Configuring package components...
Loading package instructions...
Custom commands...
Executing custom_php_install_command()...
MaxMind GeoIP databases previously downloaded.
Adding pfBlockerNG Widget to the Dashboard... done.
Remove any existing and create link for DNSBL lighttpd executable... done.
Creating DNSBL web server start-up script... done.
Creating DNSBL web server config ... done.
Starting DNSBL Service... done.
Upgrading Adv. Inbound firewall rule settings ... no changes required ... done.
Custom commands completed ... done.
Executing custom_php_resync_config_command()...1 table created.
1/1 addresses added.
cat: /var/db/pfblockerng/dnsbl/.txt: No such file or directory
pkg: POST-INSTALL script failed

Cleaning up cache... done.
Success

just after the refresh i got a crash report:

Crash report begins. Anonymous machine information:

amd64
10.3-RELEASE-p5
FreeBSD 10.3-RELEASE-p5 #0 7307492(RELENG_2_3_2): Tue Jul 19 13:29:35 CDT 2016 root@ce23-amd64-builder:/builder/pfsense-232/tmp/obj/builder/pfsense-232/tmp/FreeBSD-src/sys/pfSense

Crash report details:

PHP Errors:
[15-Aug-2016 21:57:31 Europe/Bucharest] PHP Fatal error: Allowed memory size of 104857600 bytes exhausted (tried to allocate 24 bytes) in /usr/local/pkg/pfblockerng/pfblockerng.inc on line 3867
[15-Aug-2016 21:57:31 Europe/Bucharest] PHP Stack trace:
[15-Aug-2016 21:57:31 Europe/Bucharest] PHP 1. {main}() /etc/rc.start_packages:0
[15-Aug-2016 21:57:31 Europe/Bucharest] PHP 2. sync_package() /etc/rc.start_packages:90
[15-Aug-2016 21:57:31 Europe/Bucharest] PHP 3. eval() /etc/inc/pkg-utils.inc:631
[15-Aug-2016 21:57:31 Europe/Bucharest] PHP 4. sync_package_pfblockerng() /etc/inc/pkg-utils.inc(631) : eval()'d code:3
[15-Aug-2016 21:57:31 Europe/Bucharest] PHP 5. file() /usr/local/pkg/pfblockerng/pfblockerng.inc:3867

RonpfS

Allowed memory size of 104857600 bytes exhausted (tried to allocate 24 bytes)

This tells me you only have 100M for memory limit.
What are the fixes you applied up to now to the system?

nikkon

/usr/local/pkg/pfblockerng/pfblockerng.inc

pfb_global();

// DNSBL Lighttpd HTTPS Daemon (Scans Lighttpd dnsbl_error.log for requested https domain names)
if (isset($argv[1]) && $argv[1] == 'dnsbl') {
set_time_limit(0);
pfb_livetail($pfb['dnserrlog'], 'dnsbl');
exit;
}

and i guess is default.

and also usr/local/www/pfblockerng/pfblockerng.php - not modified.

RonpfS

And no modifications to /etc/inc/config.inc or /usr/local/etc/php.ini, /etc/rc.php_ini_setup ?

nikkon

well based on my comments i did one to the first file:
// Set memory limit to 512M on amd64.
if ($ARCH == "amd64") {
ini_set("memory_limit", "512M");
} else {
ini_set("memory_limit", "256M"); # increased from 128M
}

–--

RonpfS

This change only affect i386 systems, you are on a amd64.
Did you raise the System / Advanced / Firewall & NAT Firewall Maximum Table Entries ?

nikkon

no
will do now. what's a starting value?

i had 5000000 now i have 50000000

RonpfS

I think 2000000 is the default, 50000000 should be more than enuf.
Do you see the pfblockerNG menu ?
BTW how much free memory do you have ?

nikkon

still not there.
i have deleted, restarted, reinstalled pfbloker.
27% of 8130 MiB free ram

varazir

I changed the mem settings and the table settings and now I'm getting

>>> Upgrading pfSense-pkg-pfBlockerNG... 
Updating pfSense-core repository catalogue...
pfSense-core repository is up-to-date.
Updating pfSense repository catalogue...
pfSense repository is up-to-date.
All repositories are up-to-date.
Checking integrity... done (0 conflicting)
The following 1 package(s) will be affected (of 0 checked):

Installed packages to be REINSTALLED:
	pfSense-pkg-pfBlockerNG-2.1.1_2 [pfSense]

Number of packages to be reinstalled: 1
[1/1] Reinstalling pfSense-pkg-pfBlockerNG-2.1.1_2...
[1/1] Extracting pfSense-pkg-pfBlockerNG-2.1.1_2: .......... done
Removing pfBlockerNG components...
Menu items... done.
Services... done.
Loading package instructions...
Removing pfBlockerNG... All customizations/data will be retained... done.
Saving updated package information...
overwrite!
Loading package configuration... done.
Configuring package components...
Loading package instructions...
Custom commands...
Executing custom_php_install_command()...
MaxMind GeoIP databases previously downloaded.
Adding pfBlockerNG Widget to the Dashboard... done.
Remove any existing and create link for DNSBL lighttpd executable... done.
Creating DNSBL web server start-up script... done.
Creating DNSBL web server config ... done.
Starting DNSBL Service... done.
Upgrading Adv. Inbound firewall rule settings ... no changes required ... done.
Custom commands completed ... done.
Executing custom_php_resync_config_command()...1 table created.
1/1 addresses added.
PHP ERROR: Type: 1, File: /usr/local/pkg/pfblockerng/pfblockerng.inc, Line: 3867, Message: Allowed memory size of 134217728 bytes exhausted (tried to allocate 72 bytes)pkg: POST-INSTALL script failed
>>> Cleaning up cache... done.
Success

nikkon

same line on which i have the crash reported

RonpfS

Again which memory settings did you change ?

In this thread there was a fix for pfblockerng.inc that will NEVER work on installation as the file is overwritten during the installation of the package.

It is good practice to disable pfBlockerNG AND DNSBL before removing or re-installing pfBlockerNG or before upgrading pfsense.

So to reinstall of a i386, in Diagnostics / Edit File open /etc/inc/config.inc,
go to line 77 and change from

// Set memory limit to 512M on amd64.
if ($ARCH == "amd64") {
   ini_set("memory_limit", "512M"); 
} else {
   ini_set("memory_limit", "128M");
}
```to

// Set memory limit to 512M on amd64.
if ($ARCH == "amd64") {
ini_set("memory_limit", "512M");
} else {
ini_set("memory_limit", "256M"); # i386 Default 128M
}


If the installation fails to complete on a **amd64** system, then you need to change /etc/inc/config.inc (line 75) from 512M to 640M or 768M.

// Set memory limit to 512M on amd64.
if ($ARCH == "amd64") {
ini_set("memory_limit", "512M");
} else {
ini_set("memory_limit", "128M");
}

// Set memory limit to 512M on amd64.
if ($ARCH == "amd64") {
ini_set("memory_limit", "768M"); # amd64 Default 512M
} else {
ini_set("memory_limit", "128M");
}

**AND** modify the /usr/local/etc/php.ini (last line) and /etc/rc.php_ini_setup files (line 303) from

suhosin.memory_limit = 536870912

to

suhosin.memory_limit = 671088640 # 640M Default 536870912

or

suhosin.memory_limit = 805306368 # 768M Default 536870912


If you use many GeoIP IPV6 tables (like those who block the world, again this is not the _optimal_ way to configure a firewall), then you will have to raise the **Firewall Maximum Table Entries** until the FW rules loads.

Check the installation logs,  Dashboard for crash report, /var/log, /var/log/pfblockerng, etc

nikkon

ok if i do allocate 768M as mem limit, whats the value to be changed on suhosin.memory_limit in php.ini?

PfBlockerNG v2.0 w/DNSBL

We use the mighty pf, we cannot be fooled.

tail -f pfblockerng.log