PfBlocker

RonpfS

Ran into problems today, rules were not applied correctly … anyhow.
I removed pfblocker for my test, but the tables were still there.
The widget was also complaining
I removed /var/db/aliastables/pfBblocker* but I can still see them in Diagnositic: Table !

How to remove them?

So I reinstalled pfBlocker, create a table with the same name, with no list, nothing happenned.
I added a list, the table was recreated ... fine ;o)
I I renamed it to the second table, table is renamed ok.
Now I delete the table ... nothing happens, table still present
I disabled pfBlocker, all the tables were gone :D
I enabled pfBlocker, the old tables were finaly gone.

So I created another table, I deleted it but the table remain available until your click Save in Firewall: pfBlocker: General
Do we need a Save or Apply changes button under Firewall: pfBlocker: Lists?

RonpfS

How/where could I apply a pfBlocker list to filter inbound traffic on a NAT-PMP port created by miniupnpd?

marcelloc

@RonpfS:

How/where could I apply a pfBlocker list to filter inbound traffic on a NAT-PMP port created by miniupnpd?

Try first on floating rules and go testing access with tcpdump on console.

ipv6kid

Found a few good pfBlocker compatible blocklists:

I am specifically worried about Malware.

formats: txt

Known AD server IPs:
http://pgl.yoyo.org/adservers/iplist.php?ipformat=peerblock&showintro=0&mimetype=plaintext
Main page: http://pgl.yoyo.org/adservers/

Malcode (anti-malware):
http://malc0de.com/bl/IP_Blacklist.txt

AMaDa C&C IP Blocklist:
http://amada.abuse.ch/blocklist.php?download=ipblocklist

abuse.ch ZeuS IP blocklist:
http://www.abuse.ch/zeustracker/blocklist.php?download=ipblocklist

Sucuri Security Malware Scanning IPs:
http://tools.sucuri.net/blacklist/MS-iplist.txt
CI Army Malicious IP List:
http://www.ciarmy.com/list/ci-badguys.txt

Russian Business Network:
http://doc.emergingthreats.net/pub/Main/RussianBusinessNetwork/RussianBusinessNetworkIPs.txt

marcelloc

Thanks for your contribution.

Do you know how often its Updated?

ipv6kid

I don't know how often the advertising blacklist is updated, it doesn't seem to be very effective. I'm the "cup half full" type of person so I block those IP's anyways.

As to the known malware IP's, I believe from looking at the commented-out time stamp within the files they look to be updated daily.

ipv6kid

Can somebody please tell me why PFblocker widget isn't showing all my block lists as being blocked?

Specifically the Russian Business Network Malverisers IP list is working however their CI Army list is not…. but the IP lists are of the same structure.

Working: http://rules.emergingthreats.net/blockrules/rbn-malvertisers-ips.txt

Not working or showing on Pfblocker widget: http://www.ciarmy.com/list/ci-badguys.txt

Please help!

marcelloc

Check first in diagnostics tables if this list was filled up.

Then check rule description for this alias rule.

ipv6kid

@marcelloc:

Check first in diagnostics tables if this list was filled up.

Then check rule description for this alias rule.

Can you please explain this in further detail? I don't see alias rules for these lists, shouldn't they have been automatically made?

Bummer

The pfBlocker is great! It's easy to use and very effective! Thank you!

I have 2 dumb questions.

I have Russia blocked but need to allow for the access to my network from the IP 213.238.8.10. I looked up the CiDR for it. How do I enter the IP to allow it past the Russia block list?

CIDR results for 213.238.8.10
213.238.8.10/32 = 213.238.8.10 through 213.238.8.10 [1 IP - Single IP]
213.238.8.10/31 = 213.238.8.10 through 213.238.8.11 [2 IPs]
213.238.8.8/30 = 213.238.8.8 through 213.238.8.11 [4 IPs]
213.238.8.8/29 = 213.238.8.8 through 213.238.8.15 [8 IPs]
213.238.8.0/28 = 213.238.8.0 through 213.238.8.15 [16 IPs]
213.238.8.0/27 = 213.238.8.0 through 213.238.8.31 [32 IPs]
213.238.8.0/26 = 213.238.8.0 through 213.238.8.63 [64 IPs]
213.238.8.0/25 = 213.238.8.0 through 213.238.8.127 [128 IPs]
213.238.8.0/24 = 213.238.8.0 through 213.238.8.255 [256 IPs - Class C]
213.238.8.0/23 = 213.238.8.0 through 213.238.9.255 [512 IPs]
213.238.8.0/22 = 213.238.8.0 through 213.238.11.255 [1024 IPs]
213.238.8.0/21 = 213.238.8.0 through 213.238.15.255 [2048 IPs]
213.238.0.0/20 = 213.238.0.0 through 213.238.15.255 [4096 IPs]
213.238.0.0/19 = 213.238.0.0 through 213.238.31.255 [8192 IPs]
213.238.0.0/18 = 213.238.0.0 through 213.238.63.255 [16384 IPs]
213.238.0.0/17 = 213.238.0.0 through 213.238.127.255 [32768 IPs]
213.238.0.0/16 = 213.238.0.0 through 213.238.255.255 [65536 IPs - Class B]
213.238.0.0/15 = 213.238.0.0 through 213.239.255.255 [131072 IPs]
213.236.0.0/14 = 213.236.0.0 through 213.239.255.255 [262144 IPs]
213.232.0.0/13 = 213.232.0.0 through 213.239.255.255 [524288 IPs]
213.224.0.0/12 = 213.224.0.0 through 213.239.255.255 [1048576 IPs]
213.224.0.0/11 = 213.224.0.0 through 213.255.255.255 [2097152 IPs]
213.192.0.0/10 = 213.192.0.0 through 213.255.255.255 [4194304 IPs]
213.128.0.0/9 = 213.128.0.0 through 213.255.255.255 [8388608 IPs]
213.0.0.0/8 = 213.0.0.0 through 213.255.255.255 [16777216 IPs - Class A]
212.0.0.0/7 = 212.0.0.0 through 213.255.255.255 [33554432 IPs]
212.0.0.0/6 = 212.0.0.0 through 215.255.255.255 [67108864 IPs]
208.0.0.0/5 = 208.0.0.0 through 215.255.255.255 [134217728 IPs]
208.0.0.0/4 = 208.0.0.0 through 223.255.255.255 [268435456 IPs]
192.0.0.0/3 = 192.0.0.0 through 223.255.255.255 [536870912 IPs]
192.0.0.0/2 = 192.0.0.0 through 255.255.255.255 [1073741824 IPs]
128.0.0.0/1 = 128.0.0.0 through 255.255.255.255 [2147483648 IPs]

I would like to go view the stats of what is blocked by pfBlocker. I saw your screen capture at the beginning of the pfBlocker forum. Where or how do I access this?

Again, great work!

grazman

@hankjrfan00:

I am getting this in the System Log. Any ideas?
php: : The command '/usr/local/pkg/pf/IP-Blocklist.sh start' returned exit code '2', the output was 'not running root: IP-Blocklist was found not running 0 table 
deleted. 0 table deleted. rm: /tmp/rules.debug.tmp: No such file or directory /usr/local/pkg/pf/IP-Blocklist.sh: cannot create /usr/local/www/packages/ipblocklist
/errorOUT.txt: No such file or directory rm: /tmp/rules.debug.tmp: No such file or directory 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 
77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 cat: /usr/local/www/packages/ipblocklist/interfaces.txt: No such file or directory 93 94 95 96 97 98 99 100 101 
102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 
139 140 141 142 143 144 145 146 147 rm: /usr/local/www/pac
I might make the suggestion that pfblocker uninstall runs a script to clean it out of the packages directory (and any directories it leaves behind there). While one could go to do this manually (especially if you had country block before), it makes more sense to remove the scripts and files it creates there so a reinstall will keep this type of thing from happening.

If not a BIG FAT STICKY that tells people what they need to do would probably keep these types of messages from having to be posted.

Essentially, manually remove:

/usr/local/www/packages/pfblock* and the other two related directories, especially the one with the startup script. It doesn't unintall cleanly or reinstall cleanly.

marcelloc

Grazman,

It's related to ip-blocklist package.
If you had removed it, maybe you need to delete this remaining script.

'/usr/local/pkg/pf/IP-Blocklist.sh'

Also look for ipblocklist scripts in /usr/local/etc/rc.d

marcelloc

The pfBlocker is great! It's easy to use and very effective! Thank you!

I have 2 dumb questions.

I have Russia blocked but need to allow for the access to my network from the IP 213.238.8.10. I looked up the CiDR for it. How do I enter the IP to allow it past the Russia block list?

Create a new list, choose action allow inbound and paste your networks in custom list.

Bummer

So you're saying my new list will over ride the other lists by default?

Also, what format to I put the IPs in? Is it listed as below?

213.238.8.10/32

Sorry to be so stupid on this.

Thanks!

marcelloc

whitelist(allow) rules are applied before blacklists(deny).

the custom list is in CIDR format, so if its only one ip address 213.238.8.10/32 is fine.

Bummer

Thank you!

wagonza

FYI http://www.countryipblocks.net/information/country-ip-blocks-endorses-pfsense/

johnnybe

@wagonza:

FYI http://www.countryipblocks.net/information/country-ip-blocks-endorses-pfsense/

Awesome. Thank you.

Kamel

I'd like to begin by saying thank you for pfblocker and what all of you do to make this project a success. The post I'm about to write is intended for communicating how pfblocker could be improved, but if not read in the proper mindset may come off as me being critical of pfblocker so I want to make my intentions clear up front.

I am not currently using pfblocker for a couple of reasons, the primary reason is it seems to make establishing new connections incredibly slow. This is most easily noticed when browsing from one domain to another, in my configuration anyway it causes an immense connection time but once the connection is established it seems to do ok-ish.

This may not necessarily be the fault of pfblocker as it does take system resources to run such a package gracefully, so I believe perhaps a chart or even a dynamically calculated value on the pfblocker page would help tremendously. For example, I'm not sure if pfblocker is processor hungry or memory hungry, but it could compare for instance available ram with amount of rule entries and give the user an idea of the performance they should be getting with their rules. If they have gone over the limit for their system, the user then can either deal with it, remove some rules, or remove other system resource intensive package or setting. This would make diagnosing these types issues much easier.

Another suggestion I have for pfblocker would be to have the option to dynamically increase the number of firewall entries to the amount of rules for the lists the user has selected + however many for their personal needs. For example, a checkbox "Automatically Increase Firewall Maximum Table Entries", then a box to enter how many above the amount of rules for personal firewall rules, possibly with a default of 10000 which should be sufficient for most everyone.

That's all for now… hope these recommendations are fresh and I'm not just "yet another griper" lol. I didn't see anyone suggesting this but there are many places to look.

tommyboy180

In reply to Kamel,

pfblocker performance is going to depend on your hardware. Keep in mind that pfblocker is neutral to how your system will perform. Your system performance with pfblocker will be affected by how large your lists are. If you're using a very small list the you won't even notice pfblocker. The larger the lists then the more memory is required.

Creating a chart for usage is moot. Everything depends on your hardware and your lists. For example, a list with 5000 IPs runs like nothing on my firewall but a list of 5000 may cause problems on an embedded system. So if your experiencing problems then you need to upgrade your hardware or reduce your pfblocker usage.

Firewall entries should be left to the user. Most users will never have to increase system resources to use pfblocker. If we dynamically change system variables on the fly this could cause issues with the system or other packages. Basically, it's an unnecessary risk to change a variable that a user can do at their own risk. A compromise to this could be to have the user enable this feature at their own risk.

My pfense is running on hardware that is way overkill for pfsense, however running addons like pfblocker does take a lot of system resources. With that being said, I am running pfblocker with over two billion IP's. It's takes a lot of RAM but I don't experience and slow downs or any latency because my hardware is built for it.