SquidGuard and blank redirects?

xen

i already tried that. on my pfsense, sgerror doesnt generate error pages.

dvserg

i already tried that. on my pfsense, sgerror doesnt generate error pages.

1 - if make 'disabled' squidGuard - only with squid?
2 - or test this: http://youpfsense/sgerror.php?url=http://www.google.com

I have IE 6 for test. You have FFox?

dvserg

Firefox not parsed error code - ignored all header information :(
What different with IE?

"HTTP/1.0 404 not Found"
–------------
FireFox not have internal error pages (as IE)? Ok - i make this for F/F
Please check this:
http://diskatel.narod.ru/pfSense/packages/sgerror.php

ps On IE must continue showing 'friendly error-code IE pages'.

ciarocci

Any further news on this? I got lost towards the end of the conversation and couldn't help any further. Is there something I can do to help this get resolved? I'm very interested in the filtering (in fact that is why I chose pfSense as a firewall), and need to get it working. Thanks.

Chris

dvserg

replace /usr/local/www/sgerror.php to this
http://diskatel.narod.ru/pfSense/packages/sgerror.php
and check. I found and fix this trouble on FireFox.

ciarocci

Let me rephrase my question. Is there anything a person who doesn't know what you're talking about can do to help out? Basically, I have no clue how to do what you are asking. If you could guide me on how to replace that file I certainly will give it a try.

Chris

dvserg

Chris, if you have time - wait next update.
May-be this will 14-15 jan.
Thanks.

ciarocci

Will do. I thought if you hadn't already confirmed the problem was fixed I could help do that. But if you're already planning on the update because it's fixed I'll certainly wait until then. Thanks.

Chris

flachance

dvserg,

Just to let you know, your updated sgerror.php does not work for me on Firefox or IE. In fact, there is now nothing that gets displayed. The browser is just forever spinning its wheels and then eventually gives the following error message:

ERROR
The requested URL could not be retrieved

--------------------------------------------------------------------------------

While trying to retrieve the URL: http://192.168.1.1/sgerror.php 

The following error was encountered: 

Connection to 192.168.1.1 Failed 
The system returned: 

    (60) Operation timed outThe remote host or network may be down. Please try the request again. 

Your cache administrator is xxx@xxx. 

--------------------------------------------------------------------------------

Generated Sat, 12 Jan 2008 16:51:54 GMT by localhost (squid/2.6.STABLE5)

And of course, I forgot to make a backup of the file before I overwrote it with your version.

Based on the message above, I figured that since I modified my pfsense install to use port 8080 and HTTPS, SquidGuard cannot execute sgerror.php as it tries to do it over port 80. I'd say that something has to change in the source code of SquidGuard that manages the re-direct when a banned site is hit. The page displays if I use https://192.168.1.1:8080/sgerror.php.

Where is the source for SquidGuard if I wanted to take a look?

Thanks

dvserg

Current 'stable' source sgerror on:
http://www.pfsense.com/packages/config/squidGuard/sgerror.php
Now sources on www.pfsense.com can't work with non-80 port's pfSense
It will be in nearest update.
Anonce nearest update:

controls from page 'Sources' will adding to 'ACL', 'Sources' removed
changes for transparent-proxy and non-80 port support
more options in sgerror.php: blank page; blank image (for banners); fix+additional http code pages gen (3xx, 4xx, 5xx + self message);

Sources also in /usr/local/pkg/
File squidguard_configurator.inc

dvserg

Updated squidGuard sources
!Attention!
Before reInstallation - remember you Sources page content
This page elements moved to ACL and need apply you Sources defines to this page manually (i not make conversion).
–-
What new:

added error page generation, now you can use error code with Reasone message
example:
'[redirection field] 404 This page contains porn elements'
added non-80 GUI port supporting

Please, testing it.
Best regards
Serg.

ciarocci

I uninstalled the old version and installed the new version. Now squidguard behaves like it's not even there. It shows as running, but none of the configuration I do to it is taking any effect on my web browsing. While this is better than before (previously I couldn't browse at all if squidguard was enabled), it's still not what I need. Is there something else I need to do in my config besides just turn squidguard on? Do I need to do something in squid?

I tried fooling around in squid and squidguard and I kept applying the settings each time I made a change. At one point squid and squidguard would no longer start and I could no longer access the internet. I had to uninstall both packages to get back online. It seems the configs are not deleted when uninstalling a package because if I install it again I'm stuck with all my settings I had previously and can no longer get on the internet. At this point I can't even install either package without cutting myself off from the world. HELP!

Chris

dvserg

You always can disable squidGuard (disable+Save and Apply) - this deleted redirector options from squid config and stopped squidGuard. Use this way for checking how squid worked without SG.
Also check Log box on General page - read this messages for error while SG config updated (Apply).
By default SG blocked all connections, if found error in self config data.
You can delete all options on squidGuard GUI and step-by-stef make configuration once more.

ps: Bugs in sources may be too - i prepare all codes tonight :) But today i have many testing's all SG modes. Now my SG system work stable.

Thanks for help.

sullrich

Great work dvserg! I appreciate all the hard work you have been putting into the packages recently!! :)

ciarocci

Well, I seem to have a basic config up and running, except for the following. When a page is blocked it doesn't use the default URL Redirect. Instead I get the following:

ERROR
The requested URL could not be retrieved

–------------------------------------------------------------------------------

While trying to retrieve the URL: https://192.168.1.1/sgerror.php?

The following error was encountered:

Connection to 192.168.1.1 Failed
The system returned:

(92) Protocol error

The remote host or network may be down. Please try the request again.

Any ideas? The config is doing it's job, but I much rather see the default redirect URL come up instead of the error.

Chris

flachance

Same result here. I uninstalled and then installed and I am getting the same error page as ciarocci right away.

As well, the log tab of SG no longer seem to be able to retrieve any logs or configuration files.

Thanks

dvserg

Reinstall SG now - i replaced Log-page realisation. Disabled 'Blocked log' and 'squidGuard log' - because a longer time creating for big size log-files.
–-
This is sgerror.php behaviour, if called 'sgerror.php?url=code%20test%20page:
FFox - must showing generated sgerror page type as:


Request denied by pfSense proxy: code code-text 
Reason: test page
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

IE - must used self frienly-error-pages on you win-system language with selected error-code. But on some codes (for example on my IE: sgerror.php?url=401%20test) IE give generated sgerror page as FFox.
This particularity IE - replace error messages with size 512(or 1024?)Kb by self page.
I have decided to leave such behaviour IE (but if need - may be exclude this)
–-

You may tested sgerror.php
http://youip/sgerror.php - about message
http://youip/sgerror.php?blank - blank page
http://youip/sgerror.php?blank_img - blank 1x1 GIF image
http://youip/sgerror.php?CODE%20Message - error page (looking above IE/FFox behaviour )

If you have problem - please inform what a browser you have.

ciarocci

I am using IE6. I continue to get the error explained above. If I put in the following:

https://192.168.1.1/sgerror.php?url=http://www.google.com

I get the google home page. That is what I expected to happen.

However, if I put in http://www.google.com in the default redirector of the SG config, I get the error page. Somehow the redirector is being ignored in the config and it is just calling https://192.168.1.1/sgerror.php without the redirector on the end. I don't even get the about page as I did by simply putting https://192.168.1.1/sgerror.php in the browser.

Chris

dvserg

Hi Chris
Can you post to my PM you squidGuard.conf?
Also can you test with WebGUI on http protocol?

ciarocci

I posted my conf as requested. However, I am unable to try this on HTTP not because of any security policy, and not because I do not want to, but simply because when I make the change from HTTPS to HTTP in the SYSTEM->GENERAL page, nothing happens. I can still get to the webGUI through HTTPS and only HTTPS even though the bullet is clearly on HTTP. I originally thought my firewall crashed because I couldn't get to the HTTP webGUI, but I tried the old HTTPS just for the hell of it, and wham, there it was. Now things are getting spooky. Why would it not allow me to change the webGUI even though it is clearly changed in the config? Does Squid or SG have a hold on it somehow? I definitely changed that setting fine before installing squid and SG and did not have any trouble.

Chris

SquidGuard and blank redirects?

You may tested sgerror.php http://youip/sgerror.php - about message http://youip/sgerror.php?blank - blank page http://youip/sgerror.php?blank_img - blank 1x1 GIF image http://youip/sgerror.php?CODE%20Message - error page (looking above IE/FFox behaviour )

You may tested sgerror.php
http://youip/sgerror.php - about message
http://youip/sgerror.php?blank - blank page
http://youip/sgerror.php?blank_img - blank 1x1 GIF image
http://youip/sgerror.php?CODE%20Message - error page (looking above IE/FFox behaviour )