How to configure HAVP

dvserg

# Temporary file will grow only up to this size. This means scanner
# will scan data until this limit is reached.
#
# There are two sides to this setting. By limiting the size, you gain
# performance, less waiting for big files and less needed temporary space.
# But there is slightly higher chance of virus slipping through (though
# scanning large archives should not be gateways function, HAVP is more
# geared towards small exploit detection etc).
#
# VALUE IN BYTES NOT KB OR MB!!!!
#  0 = No size limit
#
# Default:
# MAXSCANSIZE 5000000

MAXSCANSIZE 5000000

LiquiD_85

Ok i'm trying to restore all previous modification ti havp.inc file and modifying MAXSCANSIZE to 5000000
I've to restart pfsense or havp?
thnx

LiquiD_85

Same damned problem, it's hard to belive really!! Restarted pfsense and havp.inc rollback to defaults values, changed MAXSCANSIZE to 5000000 and KEEPBACKBUFFER to 600 and mdconfig to 16MB, saved file and tried … still the same! I've tried also with MAXSCANSIZE to 5000 and 5, nothing changed!!!
I think something happen to my pfsense installation, tomorrow i'll try with a fresh installation!

dvserg

After save config you must call from shell for reload config
killall havp
havp

LiquiD_85

Finally this wonderfull tool works fine, i'm going to explain my tests:

New installation in a new machine, installed HAVP and set Max download size and Scan max file size in Services -> HTTP Antivirus to 100
and it's doesn't work .. I've changed MAXSCANSIZE and KEEPBACKBUFFER to 5000 and 600 saved and in Diagnostics -> Command i've executed killall havp and havp .. and it's doesen't work … NOW i've changed "Max download size" and "Scan max file size" to empty and it's work like a charm, so i understand that the "secret" was the SAVE button in Services -> HTTP Antivirus ..

Now i've removed and reinstalled HAVP, set MAXSCANSIZE to 5000 saved and went to Services -> HTTP Antivirus and pressed SAVE, it's work perfectly!!! I think HAVP do not scan files bigger then 5K with MAXSCANSIZE=5000 and for me it's ok!!!

I think also that in Diagnostics -> Command "killall havp" and "havp" do not make the changes effective, or maybe i'm wrong, i don't know, i hope that my experience will help some people that have same problem!!!

Thanks a lot to all!!! :D

LiquiD

dvserg

I test different configurations Need set MAXSCANSIZE to any not-empty (and not 0) value
I use 5000000.
This possible set via gui and all work.

LiquiD_85

Yes MAXSCANSIZE in the havp.inc file is now 5000 and i've never set it to 0 or empty!!
In the gui now i've checked only Enabled and Use external interface, and it's work like a charm!!!

akintemel

Hello

I can not did havp and squid work together.I use squid port 3128 and ı write squid.conf " cache_peer 127.0.0.1 parent 3128 7 no-query " and enable havp and set the port 3128 .I conf the client borwser 3128 but i can not access the page .The error messages is ;
ERROR
The request URL could not be rerieved.
…..
Access Denied

Can you help me please.
Thank you

dvserg

@akintemel:

Hello

I can not did havp and squid work together.I use squid port 3128 and ı write squid.conf " cache_peer 127.0.0.1 parent 3128 7 no-query " and enable havp and set the port 3128 .I conf the client borwser 3128 but i can not access the page .The error messages is ;

Use different ports to HAVP and squid
squid = 3128
havp = 3125

akintemel

Fisrt thank you very much for your reply… :)
Ok i did it ..squid port is 3128 and in squid.conf file i changed the

cache_peer 127.0.0.1 parent 3121 7 no-query

and havp port i use the 3121 ..
and tested again but still not working.in havp access.log ( /var/log/havp/access.log ) i see anything log file ..and i can download virus file in http://www.eicar.org/anti_virus_test_file.htm this site.

dvserg

@akintemel:

Fisrt thank you very much for your reply… :)
Ok i did it ..squid port is 3128 and in squid.conf file i changed the

cache_peer 127.0.0.1 parent 3121 7 no-query

and havp port i use the 3121 ..
and tested again but still not working.in havp access.log ( /var/log/havp/access.log ) i see anything log file ..and i can download virus file in http://www.eicar.org/anti_virus_test_file.htm this site.

Via GUI Squid custom options add
cache_peer 127.0.0.1 parent 3121 7 no-query
and disable squid GUI parent proxy options

akintemel

Thank you very much now i can see log entri in havp access.log…buy the way how can i test it could you help me again please..

Thank you very much again.. ;D

dvserg

@akintemel:

Thank you very much now i can see log entri in havp access.log…buy the way how can i test it could you help me again please..

Thank you very much again.. ;D

Look this
http://www.eicar.org/anti_virus_test_file.htm

View log via GUI
Diagnostics: Execute command
PHP Execute

echo(
file_get_contents("/var/log/havp/access.log")
);

cheesyboofs

Sorry to hi-jack but how is "transparent" and "multi-wan" coming on dvserg?

dvserg

@cheesyboofs:

Sorry to hi-jack but how is "transparent" and "multi-wan" coming on dvserg?

I work with this (70-80% ready). But 2 months i really haven't free time :'(

andrew0401

I think we have the same/similar problem.

Squid and squidguard work. Havp works. But not together with havp as the parent proxy. We get

havp[22448]: (127.0.0.1) Invalid request from browser

when the above cache peer line is used.

Any more clues on what to try as I am now totally confused.

Regards

Andrew

dvserg

@andrew0401:

I think we have the same/similar problem.

Squid and squidguard work. Havp works. But not together with havp as the parent proxy. We get

havp[22448]: (127.0.0.1) Invalid request from browser

when the above cache peer line is used.

Any more clues on what to try as I am now totally confused.

Regards

Andrew

Post pls you havp config, squid 'cutom options' and 'upstream proxy' options

andrew0401

Upstream proxy - blank - not used

Custom

redirect_program /usr/local/bin/squidGuard -c /usr/local/etc/squidGuard/squidGuard.conf;redirector_bypass on;redirect_children 3;cache_peer 127.0.0.1 parent 3121 7 no

HAVP is now logging most entries to syslog - about 1 in 10 are either "could not send body to browser" or "Inavlid request from browser".

But Eicar test comes through no problem! I seem to either have havp working in isolation or as a parent proxy and it stops scanning.

Confused

Andrew

dvserg

cache_peer 127.0.0.1 parent 3121 7 no-query

havp mast have port 3121

andrew0401

havp is on 3121

also just realised that whilst havp is working as much as logging some (but not all reuests), squidguard and lightsquid have both stopped working!

At this stage not impressed with havp

Andrew