Dansguardian package for 2.0

Cino

thanks again and great work!! You have added some nice add-ons to pfsense over the last couple of months

no issue, but here are the processes on my box.. this is how i know its running:


: ps -aux | grep dan
clamav 13281  0.0  0.4 18036 14028  ??  INs   3:00PM   0:00.08 /usr/local/sbin/dansguardian
clamav 13525  0.0  0.2  7796  4692  ??  IN    3:00PM   0:00.03 /usr/local/sbin/dansguardian
clamav 13655  0.0  0.1  7796  4672  ??  IN    3:00PM   0:00.02 /usr/local/sbin/dansguardian
clamav 13759  0.0  0.5 19060 14840  ??  IN    3:00PM   0:00.43 /usr/local/sbin/dansguardian
clamav 14008  0.0  0.5 18036 14172  ??  IN    3:00PM   0:00.35 /usr/local/sbin/dansguardian
clamav 14105  0.0  0.5 18036 14120  ??  IN    3:00PM   0:00.02 /usr/local/sbin/dansguardian
clamav 14199  0.0  0.5 18036 14120  ??  IN    3:00PM   0:00.02 /usr/local/sbin/dansguardian
clamav 14385  0.0  0.5 18036 14264  ??  IN    3:00PM   0:00.87 /usr/local/sbin/dansguardian
clamav 14451  0.0  0.4 18036 13988  ??  IN    3:00PM   0:00.01 /usr/local/sbin/dansguardian
clamav 14466  0.0  0.4 18036 13988  ??  IN    3:00PM   0:00.01 /usr/local/sbin/dansguardian
clamav 14472  0.0  0.4 18036 13988  ??  IN    3:00PM   0:00.01 /usr/local/sbin/dansguardian
clamav 16150  0.0  0.4 18036 14052  ??  IN    3:40PM   0:00.00 /usr/local/sbin/dansguardian
clamav 16221  0.0  0.4 18036 14052  ??  IN    3:40PM   0:00.00 /usr/local/sbin/dansguardian
clamav 16515  0.0  0.4 18036 14052  ??  IN    3:40PM   0:00.00 /usr/local/sbin/dansguardian
clamav 16582  0.0  0.4 18036 14052  ??  IN    3:40PM   0:00.00 /usr/local/sbin/dansguardian
clamav 16676  0.0  0.4 18036 14052  ??  IN    3:40PM   0:00.00 /usr/local/sbin/dansguardian
clamav 16741  0.0  0.4 18036 14052  ??  IN    3:40PM   0:00.00 /usr/local/sbin/dansguardian
clamav 16763  0.0  0.4 18036 14052  ??  IN    3:40PM   0:00.01 /usr/local/sbin/dansguardian
clamav 16828  0.0  0.4 18036 14052  ??  IN    3:40PM   0:00.01 /usr/local/sbin/dansguardian
clamav 16843  0.0  0.4 18036 14052  ??  IN    3:40PM   0:00.01 /usr/local/sbin/dansguardian
clamav 17095  0.0  0.4 18036 14052  ??  IN    3:40PM   0:00.00 /usr/local/sbin/dansguardian
root   13272  0.0  0.0  3524  1252   0  S+    3:47PM   0:00.00 grep dan

marcelloc

It's running very well.

I'll include service option too. Maybe tomorrow.

marcelloc

version 0.1.2 is out with some fixes and improvements

improve blacklist import and category assign
include dansguardian on service
include log, daemon and config default xml options
fix some typos
Maybe a faster boot process (01:00 on virtualbox)

still working on…

SSL men in the middle feature
Blacklist and clamav update frequency

To avoid double dansguardian link on service menu(dansguardian and Dansguardian), remove 0.1.1 package before install 0.1.2

Cino

thanks for the update.. I've give it a try in a bit

burton78

Thanks for all your hard work marcelloc! This is a great addition to pfsense! Was wondering if adding a "transparent proxy mode" could be an option as well?

Also I caught a typo for ya too under Daemon -> Parent proxy Settings -> Proxy Port: Sets port number "fro" proxy server.

marcelloc

@burton78:

Thanks for all your hard work marcelloc! This is a great addition to pfsense! Was wondering if adding a "transparent proxy mode" could be an option as well?

I'll include PAC configuration to dansguardian package first.

When you enable trasparente proxy, you are not able to authenticate or filter ssl.

I'ts not that good for security at all.

Search for WPAD, PAC proxy.js or proxy.pac to see how auto detecproxy works.

Also I caught a typo for ya too under Daemon -> Parent proxy Settings -> Proxy Port: Sets port number "fro" proxy server.

Thanks.

Cino

here is example of mine that i've been using with squid.


function FindProxyForURL(url, host) {

// If IP address is internal or hostname resolves to internal IP, send direct.

	if (
          isInNet(host, "10.0.0.0", "255.0.0.0") ||
          isInNet(host, "172.16.0.0", "255.240.0.0") ||
          isInNet(host, "192.168.0.0", "255.255.0.0") ||
		  isInNet(host, "127.0.0.0", "255.255.255.0") ||
		  isInNet(host, "192.168.0.100", "255.255.255.255") ||
		  isPlainHostName(host) ||
		  localHostOrDomainIs(host, "127.0.0.1") ||
		  dnsDomainIs(host, ".xxxx.net")
		)

		return "DIRECT";

return "PROXY 192.168.0.1:3128; DIRECT";
}

this is probably more to do with squid then danguardian. i've enabled forwardfor and/or xforwardfor but it always seem to get the IP address of the squid interface in the squid logs… Any ideas? I read there was a patch for squid but this patch is pretty old and you would think it was already built into squid2 and squid3..... i am using squid3 so it could be that...

Any ideas?

marcelloc

@Cino:

return "PROXY 192.168.0.1:3128; DIRECT";

Change this to dansguardian port and enable Auth Plugin on dansguardian general tab, this will log users.

to log x-forwarded ips you need to inlcude this x-forwarder no squid.conf log directive.

I did not found what to change but as you are using version 3.x, this doc can help
http://www.squid-cache.org/Doc/config/follow_x_forwarded_for/

EDIT
Try ip address authentication mode on dansguardian general tab.
This may log ip as a user on your squid.

You can also disable squid log and change dansguardian style to squid.

itoxygen

PfSense 2.0.1 install Dansguardian v.0.1.2
error code
php: /pkg_edit.php: The command '/usr/local/etc/rc.d/dansguardian stop' returned exit code '1', the output was 'dansguardian not running? (check /var/run/dansguardian.pid).'
Jan 30 22:13:19 dansguardian[38774]: Error reading custom image file.

where is problem?

marcelloc

@itoxygen:

PfSense 2.0.1 install Dansguardian v.0.1.2
error code
php: /pkg_edit.php: The command '/usr/local/etc/rc.d/dansguardian stop' returned exit code '1', the output was 'dansguardian not running? (check /var/run/dansguardian.pid).'
Jan 30 22:13:19 dansguardian[38774]: Error reading custom image file.

where is problem?

try to start on console:
/usr/local/etc/rc.d/dansguardian start

itoxygen

Dansguardian service status is running, but system logs error message

Jan 30 22:36:57 php: /pkg_edit.php: The command '/usr/local/etc/rc.d/dansguardian stop' returned exit code '1', the output was 'dansguardian not running? (check /var/run/dansguardian.pid).'
Jan 30 22:36:57 dansguardian[50366]: Error reading custom image file.

Content filter not working

marcelloc

Are you configuring client browser to use squid port or dansguardian port?

Can you paste return from:
ps ax | grep -i dansguardian

itoxygen

Squid transparent proxy mode port number 3128, I add the adress to the black list of squid, it works without problem

$ ps ax | grep -i dansguardian
130 ?? I 0:00.00 /usr/local/sbin/dansguardian
366 ?? I 0:00.00 /usr/local/sbin/dansguardian
527 ?? I 0:00.00 /usr/local/sbin/dansguardian
557 ?? I 0:00.00 /usr/local/sbin/dansguardian
895 ?? I 0:00.00 /usr/local/sbin/dansguardian
1176 ?? I 0:00.00 /usr/local/sbin/dansguardian
1288 ?? I 0:00.00 /usr/local/sbin/dansguardian
1464 ?? I 0:00.00 /usr/local/sbin/dansguardian
1530 ?? I 0:00.00 /usr/local/sbin/dansguardian
48666 ?? S 0:00.00 sh -c ps ax | grep -i dansguardian
48931 ?? S 0:00.00 grep -i dansguardian
63558 ?? Is 0:00.02 /usr/local/sbin/dansguardian
63861 ?? I 0:00.01 /usr/local/sbin/dansguardian

marcelloc

@itoxygen:

Squid transparent proxy mode port number 3128, I add the adress to the black list of squid, it works without problem

Your dansguardian is running.

Instead of using squid on transparent mode, config your browser to use dansguardian ip and port.

If you want o improve your transparente setup, configure WPAD/PAC on your DHCP.

itoxygen

my system configurations was working without problem on the squidquard, I unistalled squidquard and i installed dansquardian but now filter function is not working

marcelloc

@itoxygen:

my system configurations was working without problem on the squidquard, I unistalled squidquard and i installed dansquardian but now filter function is not working

Try a simple https://facebook.com with squid transparent + squidguard to see how transparent proxy is a ilusion of web filtering.

Dansguardian must stays in front of squid and a proxy configuration must exist to filter https and authenticate users.

If you really need transparent squid, you will need to setup a squid -> dansguardian -> squid.

Dansguardian does not works like squidguard, take a look on dansguardian website do understand better how it works.

itoxygen

Can you inform me with a more detailed explanation? If it is possible an explanation step by step for the settings of dans guardian will be better for me. I really appreciate your help. Thank you very much.

marcelloc

@itoxygen:

Can you inform me with a more detailed explanation? If it is possible an explanation step by step for the settings of dans guardian will be better for me. I really appreciate your help. Thank you very much.

If you understand the transparent proxy limitation, follow these links to get how automatic proxy configuration works

WPAD/PAC info
http://www.davidpashley.com/articles/automatic-proxy.html

http://www.grape-info.com/doc/win2000srv/internet-gw/wpad/index.html

Cino

i'm going to keep my auto proxy config pointing directly to squid's port but on certain computers, manually enter the port for dansguardian.

For client ip logging from dansguard to squid, what i'm finding is there are 2 IPs, the client IP and 127.0.0.1. Going to http://checker.samair.ru/ show's this request when I have either forwardfor and/or usexforwardfor within dansguard and Disable X-Forward in squid unchecked.

squid logs only shows 127.0.0.1.. I'll have to do some more research and do some packet sniffing to verify whats going on…. Its been awhile, but i remember this work prefect when I was using 'client - hvap - squid'.. Squid reported the real client IP in its logs...

EDIT: I did a quick tcpdump and dansguard seems to sending the client IP under X-Forward-For within HTTP traffic.

marcelloc

If you change dansguardian log to squid format don't get the same result as squid log?

EDIT

If I have some time tomorrow I'll see if I can find how HAVP before squid don't affect squid log.