PfBlocker

cybercare

So I tried to search some but too many pages lol.

On the widget, what determines the "Packets" count?

Initially I thought it would keep a rolling count of blocked packets but it seems to go up and down. Like right now it says 6 but in a few min it will say 0.

I feel kind of dumb asking because I'm sure it's answered some place obvious.

Everything I could find makes me think rolling count but why would it go to 0 so often, shouldn't it keep growing if anything?

FWIW I am on 2.1 latest snap.

chpalmer

@cybercare:

So I tried to search some but too many pages lol.

On the widget, what determines the "Packets" count?

Initially I thought it would keep a rolling count of blocked packets but it seems to go up and down. Like right now it says 6 but in a few min it will say 0.

I feel kind of dumb asking because I'm sure it's answered some place obvious.

Everything I could find makes me think rolling count but why would it go to 0 so often, shouldn't it keep growing if anything?

FWIW I am on 2.1 latest snap.

Mine does this also. At first I thought it was because I occasionally clear my firewall logs. But it just happened and coincided with a modem going down and resetting which has started to happen here. Will keep watching unless anyone else knows.

kilthro

Anytime interfaces are reset, brought down ect will reset the counters. If you run snort and it does an update to the rules, it will flush the counters.. There are many things that will reset it. I am not sure what other packages you are running but this could lead to the counters clearing as well. Its not a big deal to me. As long as its up and running is all that matters. :-D

cybercare

@kilthro:

Anytime interfaces are reset, brought down ect will reset the counters. If you run snort and it does an update to the rules, it will flush the counters.. There are many things that will reset it. I am not sure what other packages you are running but this could lead to the counters clearing as well. Its not a big deal to me. As long as its up and running is all that matters. :-D

Some of that makes sense but in my case I have only that one package running and can just simply keep the home page up for 5 min and often it will reset to 0, or simply just hopping around in the menus, say I look at some logs, double check vpn status etc and later go back home (not making any actual changes during any of this) it will be reset.

I agree it's not a super big deal but kind of defeats the point of the widget to me as that is what I was interested in about it. I rather not have to parse through logs to see if all the sudden my box is getting a big hit from trouble makers.

Don't get me wrong though. I am grateful of the app and still learning it and other options but is a bit of a tease lol

kilthro

check you logs. are you getting reset interfaces? is there any other activity causing this? If you change settings in other areas that can affect the interfaces or monitoring ect it will cause them to reset. I wonder if you are getting alarms on these interfaces.. I never have the widget reset buy just moving around in the webgui.. only if i actually make changes to interfaces, pfblocker, snort, ect..

ccb056

I am receiving an error:

Dashboard page - pfBlocker widget
it is reading '500 - Internal Server Error'

This is also reported here:
http://forum.pfsense.org/index.php?topic=54262.0

running: 2.0.2-RELEASE (amd64)
packages:
OpenVPN tap Bridging Fix
pfBlocker
RRD Summary

ccb056

Upon investigating another error I was experiencing, see here:
http://forum.pfsense.org/index.php/topic,57113.0.html

I switched from Chrome to IE, in IE the 500 error is gone and the dashboard widget works as expected.

Maybe the pfBlocker and Traffic Graph bug are related….. both show errors in Chrome but work in IE

Supermule

I get this error

php: : There were error(s) loading the rules: /tmp/rules.debug:39: cannot define table pfBlockerEmerging_Block_IP: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded - The line in question reads [39]: table <pfblockeremerging_block_ip>persist file "/var/db/aliastables/pfBlockerEmerging_Block_IP.txt"

I have deleted the file, but it still shows up on the pfblocker widget on the frontpage of PFsense.

It keeps giving me errors of the list is gone, but before I deleted it, it was still there.

Very weird problem…</pfblockeremerging_block_ip>

Supermule

Cannot remove lists from pfblocker widget….

How to do?? They dont go away when deleted from the lists tab in the config GUI.

Supermule

Deleted and reinstalled. Lists are gone.

Supermule

Did a package delete and rebooted….

Jan 4 22:05:27 php: : There were error(s) loading the rules: /tmp/rules.debug:35: cannot define table pfBlockerTopSpammers: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded - The line in question reads [35]: table <pfblockertopspammers>persist file "/var/db/aliastables/pfBlockerTopSpammers.txt"

Jan 4 22:05:27 php: : New alert found: There were error(s) loading the rules: /tmp/rules.debug:35: cannot define table pfBlockerTopSpammers: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded The line in question reads [35]: table <pfblockertopspammers>persist file "/var/db/aliastables/pfBlockerTopSpammers.txt"

I think it has issues with 2.0.2 release…..</pfblockertopspammers></pfblockertopspammers>

Supermule

Did a manual delete in rules.debug to remove pfblocker aliases.

Now it says this…

Jan 4 22:16:46 php: : There were error(s) loading the rules: /tmp/rules.debug:35: cannot define table pfBlockerTopSpammers: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded - The line in question reads [35]: table <pfblockertopspammers>persist file "/var/db/aliastables/pfBlockerTopSpammers.txt"

Jan 4 22:16:46 php: : New alert found: There were error(s) loading the rules: /tmp/rules.debug:35: cannot define table pfBlockerTopSpammers: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded The line in question reads [35]: table <pfblockertopspammers>persist file "/var/db/aliastables/pfBlockerTopSpammers.txt"

It just wont go away!</pfblockertopspammers></pfblockertopspammers>

kilthro

Looks like memory allocation errors.

Did you go to system > Advanced > Firewall/Nat tab and increase the Firewall Maximum Table Entries?

I have had to increase mine quite a bit to run all my tables. I currently have mine set to 999999999 and no longer get any memory allocation errors.

Supermule

Its currently set at 200.000 table entries…and 100.000 tables...

kilthro

increase it way up. Thats most likely the problem. Its not going to affect the firewall negatively. You see where mine is set and all runs just fine and I dont get those errors anymore.

Supermule

Whats your maximum tables and table entries??

kilthro

Attached everything on that page. I didnt touch anything else. Left it at default.

states.jpg_thumb

Supermule

Thx!

francisuk22

Love it! :)

LinuxTracker

I have pfBlocker loading a list from the following url:
http://www.dnsbl.manitu.net/download/nixspam-ip.dump.gz

I decompressed the .gz to look at it and found text in the following format:

2013-01-21T20:15+0100 78.39.223.180
2013-01-21T20:15+0100 49.202.135.218
2013-01-21T20:15+0100 213.108.75.31
...

I have 2 systems that handle this list fine.
One other system scrambles the file content - loads nonsense IPs the table - is why I peeked inside the .gz

The thing is, I thought pfBlocker had to have the IP addr/cidrs at the beginning of the line. Looks like I'm wrong.

In what format(s) does pfBlocker need it's IP data?