Hi,


I'm trying to scan for viruses during http web traffic and viruses that comes through mail through my RHEL ES 3.

I installed Clamav from clamav-0.87.1.tar.gz . It was installed in /usr/local/etc . I also installed libesmtp. My mailserver is postfix. I added the necessary entries in Postfix and Mailscanner to scan for viruses through mail. It is working perfectly fine and I've no problem with that.

My problem starts when I try to scan http web traffic for viruses. Let me explain what I've done to scan for http web traffic:.

I installed Dansguardian with ClamAV plugin from Dansguardian-2.9.2.0.tar.gz. as my content scanner .I configured it with the command :

./configure –sysconfdir=/etc –enable-clamd=yes option.

Squid is my proxy server. Dansguardian uses port 8080 and squid is configured on port 3128. Client browsers are configured to access internet through port 8080 . ie, Client ==>DG==>Squid==>ISP. Upto this everything works fine. I can block certain sites, urls,extensions,mimetypes etc... through the files in /etc/dansguardin/lists. Internet browsing also works fine upto here.

Now I changed my /etc/dansguardin/dansguardian.conf to scan http web traffic for viruses. I uncommented the line :

contentscanner = '/etc/dansguardian/contentscanners/clamdscan.conf '

to enable content scanning on html pages for viruses.

And in /etc/dansguardian/contentscanners/clamdscan.conf ,

I changed the line ,

clamduds file = '/var/run/clamav/clamd.sock '

to

clamduds file = '/tmp/clamd '

( I assume this is correct . If I don't change that I get error)

I restarted dansguardian , and tried to access internet . But to whatever pages I'm trying to access , I get the “Access Denied” Message from Dansguardian with the Reason :


WARNING : Could Not Perform Virus Scan !

Categories

Content Scanning


I get the following message in /var/log/messages


ScanFile/Memory returned error : -1


The result I'm looking for is to get a Virus warning message when I try to execute or download a virus from HTML Pages

Waiting for your valued suggestions & solutions

Regards,

Jomy

Hi,

I suspect this to be the problem with socket . I was using Local Unix Socket /tmp/clamd and I could see the following error in /tmp/clamd.log:

ERROR Connecting to Clamd Socket

Now I'm using TCP Socket instead of Local Socket and did the following changes in clamd.conf

TCPSocket 3310
TCPAddr 127.0.0.1

Now I find difficulty in configuring /usr/loca/etc/dansguardian/dansguardian/clamdscan.conf ( clamdscan is my content scanner) where there is an option like this.

# Edit this to match the Location of your Local Unix Socket
# clamdudsfile = '/var/run/clamav/clamd.sock'

Since I'm using TCP Socket instaed of Local Unix Socket , how can I configure my clamdscan.conf file so that it can be bound to TCPSocket 3310.

Your help is very much appreciated.

Jomy

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