TLD Domain count exceeded

Unoptanio

ok.
At the moment I have not detected any slowness in DNS resolution
Could it be a solution to increase the RAM of my system? Or does PHP see at most a certain fixed maximum amount of RAM?

If I increase the system RAM to 32GB, will PHP be able to use more RAM than now?

SteveITS

@Unoptanio Per the blue (i) icon in pfBlocker here:

"Once the TLD Domain limit below is exceeded, the balance of the Domains will be listed as-is. IE: Blocking only the listed Domain (Not Sub-Domains)
TLD Domain Limit Restrictions:

< 1.0GB RAM - Max 100k Domains
< 1.5GB RAM - Max 150k Domains
< 2.0GB RAM - Max 200k Domains
< 2.5GB RAM - Max 250k Domains
< 3.0GB RAM - Max 400k Domains
< 4.0GB RAM - Max 600k Domains
< 5.0GB RAM - Max 1.0M Domains
< 6.0GB RAM - Max 1.5M Domains
< 7.0GB RAM - Max 2.5M Domains
> 7.0GB RAM - > 2.5M Domains"

...so at a limit of 4 million I guess you have a lot of RAM. :) Without looking into the code I guess you can try it? I would have read that list as it stops at 2.5 million.

Unoptanio

@SteveITS

Unoptanio

This post is deleted!

Unoptanio

@SteveITS

SteveITS

@Unoptanio re: "table-entries hard limit", what is your setting of "System > Advanced > Firewall & NAT > Firewall Maximum Table Entries"? Looks like you'd need it to be at least 4.9 million to fit 4806104 entries.

(note pfSense has a longstanding bug where the sentence "On this system the default size is: ___" always shows whatever number you've entered, if you've entered a custom number)

Unoptanio

@SteveITS

SteveITS

@Unoptanio Assuming your router has enough RAM, change the 400,000 to a higher number.

Actually per https://docs.netgate.com/pfsense/en/latest/config/advanced-firewall-nat.html#firewall-maximum-table-entries it says twice the number you need so I guess 9 million for you.

Unoptanio

@SteveITS

now i have only 400.000

i try to change in 9.000.000 ??

Unoptanio

@Unoptanio

I did a test now with a value of Firewall Maximum Table Entries 6,000,000 but it didn't solve the problem.

The number of X is always the same

SteveITS

@Unoptanio Not sure what to tell you. According to the pfBlocker directions I posted above, over 7 GB RAM should be limited to 2.5 million domains. You may need to find the code in pfBlocker that is setting the limit to 4 million and/or add RAM to your router.

Unoptanio

@SteveITS
@BBcan177

Proverò ad acquistare altra ram

I will try to buy more RAM
my current ram consumption is around 50%

Unoptanio

@SteveITS

Resolved

Extract from /usr/local/pkg/pfblockerng/pfblockerng.inc

// Determine max Domain count available for DNSBL TLD analysis (Avoid Unbound memory exhaustion)
	$pfs_memory = (round(get_single_sysctl('hw.physmem') / (1024*1024)) ?: 1000);

	if (!$pfb['dnsbl_py_blacklist']) {
		$pfb['pfs_mem'] = array(   '0' => '100000', '1500' =>  '150000', '2000' =>  '200000', '2500' =>  '250000', '3000' =>  '400000',
					'4000' => '600000', '5000' => '1000000', '6000' => '1500000', '7000' => '2000000', '8000' => '2500000',
					'12000' => '3000000', '16000' => '4000000', '32000' => '8000000');
	} else {
		$pfb['pfs_mem'] = array(   '0' => '200000', '1500' =>  '300000', '2000' =>  '400000', '2500' =>  '500000', '3000' =>  '800000',
					'4000' => '1200000', '5000' => '2000000', '6000' => '3000000', '7000' => '4000000', '8000' => '5000000',
					'12000' => '6000000', '16000' => '8000000', '32000' => '16000000');
	}

	foreach ($pfb['pfs_mem'] as $pfb_mem => $domain_max) {
		if ($pfs_memory >= $pfb_mem) {
			$pfb['domain_max_cnt'] = $domain_max;
		}
	}

change "'7000' => '2000000'" and "'7000' => '4000000'" to "'7000' => '6000000'" in both sets.

change "'8000' => '2500000'" and "'8000' => '5000000'" to "'8000' => '6000000'" in both sets.

Update Reload | DNSBL after making these changes.