Country Block

tommyboy180

i got it going but could the author or anybody else let me know if i am doing anything wrong or opening a hole as i am not a coder.
i simply edited the config file like:

$N = count($aCountry);

$myFile = "countries.txt";
conf_mount_rw();
$fh = fopen($myFile, 'w+');
$output = "**You selected $N Countries";

for($i=0; $i < $N; $i++)
{
//echo($aCountry[$i] . " ");
fwrite($fh, $aCountry[$i] . "\n");
conf_mount_rw();
}
echo("");
}
}

and away it went. it's running ok now. thank you.**

Awesome! You saved me a couple hours on my day off. I will make the changes and commit this in the CountryBlock package and the IPBlocklist package.

louis-m

hey, no probs! thanks for your efforts and what a great package!
i still can't get the logging to work (tick box etc) so there must be another bit in there to change to rw

think the last bit above is meant to be "ro" instead of "rw"

tommyboy180

The logging uses a feature already built into pfsense. It logs just like anything else, so you logs should show up under the Firewall logs.

louis-m

i've edited it again and put the conf_mount_rw(); at the very begining of the php script and the conf_mount_ro(); at the end and it works fine now

conf_mount_rw();

mwexec("touch countries.txt");
//$myFile = "countries.txt";
//$fh = fopen($myFile, 'a+');

if(isset($_POST['formSubmit']))
{
$aCountry = $_POST['formCountry'];

if(isset($_POST['formOutbound']))
{
$output2 = " and Outbound access is BLOCKED.";
exec("touch OUTBOUND");
}
else
{
$output2 = " and Outbound access is ALLOWED.";
exec("rm OUTBOUND");
}

if(isset($_POST['formlogging']))
{
exec("touch logging");
}
else
{
exec("rm logging");
}

if(empty($aCountry))
{
$output = "**You didn't select any Countries.";
exec("rm countries.txt");
}
else
{

$N = count($aCountry);

$myFile = "countries.txt";
$fh = fopen($myFile, 'w+');
$output = "**You selected $N Countries";

for($i=0; $i < $N; $i++)
{
//echo($aCountry[$i] . " ");
fwrite($fh, $aCountry[$i] . "\n");
}
echo("");
}
}
conf_mount_ro
?>****

tommyboy180

Excellent! Great work and thank you.

louis-m

and what a great peice of code too. that cheeky little bleeder from taiwan is now being blocked good and proper! thank you!

louis-m

um….there's a bit of a difference between the full & embedded versions. running on a full version with the same packages eg snort etc, country block runs. with the embedded. it stops after 5 mins. i'll play a bit more i think.

tommyboy180

@louis-m:

um….there's a bit of a difference between the full & embedded versions. running on a full version with the same packages eg snort etc, country block runs. with the embedded. it stops after 5 mins. i'll play a bit more i think.

I don't have any experience with embedded so any help is appreciated. I wonder what the difference is, hopefully there is a fix that we can implement.

cmb

@tommyboy180:

I don't have any experience with embedded so any help is appreciated. I wonder what the difference is, hopefully there is a fix that we can implement.

The only real difference is if you must write to something other than /var you must conf_mount_rw() first and conf_mount_ro() afterwards.

tommyboy180

@cmb:

@tommyboy180:

I don't have any experience with embedded so any help is appreciated. I wonder what the difference is, hopefully there is a fix that we can implement.

The only real difference is if you must write to something other than /var you must conf_mount_rw() first and conf_mount_ro() afterwards.

Thank you very much.

darklogic

I have noticed that some IP's from other Countries have been getting blocked by SNORT even though I have the entire country set to block and country block package was verified to be running. I have never seen this before until now. This could be nothing, but I raise the question that if the country block is basically blocking the IP already, why now is SNORT even getting the opportunity to block the IP? Logic tells me that the country block package would simply overide any other decision the firewall would make on handdle the incoming connection and then simple discard the connection or auto block it from everthing. The only other option or idea I have is that maybe this is a new range of IP's not listed for those countries from the countryipblock.net website??? Maybe something to look into maybe not. Just thought I should say something.

The IP's below belong to Korea the republic and china according to countryipblock.net
121.176.124.65
123.159.194.21

Thanks for any help or ideas.

tommyboy180

@darklogic:

I have noticed that some IP's from other Countries have been getting blocked by SNORT even though I have the entire country set to block and country block package was verified to be running. I have never seen this before until now. This could be nothing, but I raise the question that if the country block is basically blocking the IP already, why now is SNORT even getting the opportunity to block the IP? Logic tells me that the country block package would simply overide any other decision the firewall would make on handdle the incoming connection and then simple discard the connection or auto block it from everthing. The only other option or idea I have is that maybe this is a new range of IP's not listed for those countries from the countryipblock.net website??? Maybe something to look into maybe not. Just thought I should say something.

The IP's below belong to Korea the republic and china according to countryipblock.net
121.176.124.65
123.159.194.21

Thanks for any help or ideas.

The pf Firewall follows rules in the order they are written to the config. SNORT rules must come before the countryblock rules. You can verify this by looking at /tmp/rules.debug.
What I think you are seeing the the same IP. Both packages block the IP but SNORT is the first to encounter based on your rule set.

darklogic

ok, so basically one way or another they will get blocked even though SNORT seen the incoming connection first. I just never noticed this before. Is it because the CountryBlock is sending information to the logs now?

Thanks,

tommyboy180

@darklogic:

ok, so basically one way or another they will get blocked even though SNORT seen the incoming connection first. I just never noticed this before. Is it because the CountryBlock is sending information to the logs now?

Thanks,

No the logs are separate. It's just the order that the rules are handled.

darklogic

Ok, well thanks for explanning to me on what was happening.

Take Care,

Matt

tommyboy180

@darklogic:

Ok, well thanks for explanning to me on what was happening.

Take Care,

Matt

np

jerrygoldsmith

First off, this is an AWESOME package, thank you for putting in the time and effort to make it what it is!

Question - mine will randomly report 'not running'. My DSL provider is AT&T and they change my IP randomly - sometimes twice a day (not the modem, its a result of something else they are experimenting with here in town). I think this is the cause, but I'm not sure. Logs don't report anything of interest, but that seems to be the correlation.

Is there a way to auto-start it, or to keep it from needing to be restarted every time this happens?

tommyboy180

@jerrygoldsmith:

First off, this is an AWESOME package, thank you for putting in the time and effort to make it what it is!

Question - mine will randomly report 'not running'. My DSL provider is AT&T and they change my IP randomly - sometimes twice a day (not the modem, its a result of something else they are experimenting with here in town). I think this is the cause, but I'm not sure. Logs don't report anything of interest, but that seems to be the correlation.

Is there a way to auto-start it, or to keep it from needing to be restarted every time this happens?

You can have it start via a cron job. I'm not sure why it stops even if your IP changes, the only thing that causes the package to stop is a change in the firewall configuration. What you can do have a cron job run every minute or 5 minutes to run the package. That would keep it running all the time .

mgc6288

@jerrygoldsmith:

Is there a way to auto-start it, or to keep it from needing to be restarted every time this happens?

What I did is after I installed the Cron package, I created an auto start like this:

minute: 0
hour: *
mday: *
month: *
wday: *
who: root
command: /usr/local/etc/rc.d/countryblock.sh

jerrygoldsmith

Thanks guys, I appreciate it.

Like I said, I don't know if it's the IP change but it seems to happen about that time. I put in the cron job, thanks a bunch!

And thanks again for the wonderful package and all the hard work you put into it!