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Knowledgebase
The Knowledgebase is a searchable database of technical questions and answers to troubleshoot a variety of issues. Compiled by the Barracuda Technical Support team, this interactive tool is designed to be an easy way to solve technical issues.
Knowledgebase Articles (212)
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How are user browsing time and requests calculated for Barracuda Web Filter reports?
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Why does my Barracuda Web Filter have such high latency? How can I fix this?
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How can I configure my Barracuda Web Filter as a forward proxy?
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What should my default gateway be set to on my Barracuda Web Filter when inline?
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How do I submit a web site to be categorized or re-categorized in the Barracuda Web Filter?
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How can I run a File System Repair on my Barracuda Web Filter?
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How do I configure Novell eDirectory to work with my Barracuda Web Filter?
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How can a customer set up my Barracuda Web Filter to backup to the cloud?
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Office 365 issues failing to install/update/activate via web filter.
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How and when should I upgrade the DC agent software for my Barracuda Web Filter?
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Why are my chromebook users not seen as a domain user?
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SSL Inspection Setup and requirements, units 310 GA firmware and above techlib links for Cusotmer
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How can I resolve Ultrasurf and Freegate false positives on my Barracuda Web Security Gateway?
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Why doesn't my Web Security Gateway firmware backup accept my backup file to restore?
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How do I verify Edirectory functionality on the Web Security Gateway?
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How can I use HTTPS for all block pages generated by the Barracuda Web Security Gateway?
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Does the Barracuda Web Security Gateway block compromised sites that exploit the current Microsoft ActiveX Vulnerability (MsVidCtl)?
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Why isn't my Barracuda Web Security Gateway displaying the login prompt on the block page?
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Why am I not receiving my reports via email from my Barracuda Web Security Gateway?
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How can I import existing user names and passwords into my Barracuda Web Security Gateway?
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Why does my Barracuda Web Security Gateway show an expired SSL certificate?
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How can the unit of measure for the CPU temperature displayed on the status page be changed from Celsius or Fahrenheit?
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Why is my web log not recording the size of the download correctly?
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What is the Performance Report?
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Why when doing a lookup on my Barracuda Web Filter, the user is not shown as part of his/her group?
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Why isn't safe search working if I have an allow exception for google?
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What are the Best Practices for the Barracuda Web Filter?
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What are the top 5 misconfigurations on the Barracuda Web Filter?
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How do I create custom domain categories on the Barracuda Web Filter?
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Why is my Barracuda product showing requests to captive.apple.com?
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How can Support fix 'Error Rendering Report' messages in the stats table of the Barracuda Web Filter's Status page?
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Should I block http://www.msftncsi.com/ncsi.txt on my Barracuda Product?
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Why can't I access websites over non-standard ports when using a Barracuda Web Filter as a forward proxy?
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How should I update my firmware on currently clustered Barracuda Web Filter?
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Why is my Barracuda product showing requests to http://clients3.google.com/generate_204?
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Why Traffic from Microsoft Edge Not being Filtered using WSA with WSG
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How can I verify that Transparent SSL Inspection is working?
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How do I block country domains on the Barracuda Web Filter?
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How to allow/block YouTube/Facebook?
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Why is my Chromebook traffic not showing up or delayed
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Why could a Barracuda Spam Firewall show up as infected on the Barracuda Web Filter?
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How should I configure Kerberos authentication on my Barracuda Web Filter?
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How much historical reporting data is stored on a my Barracuda Web Filter? How far back do the logs and reports go?
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How should I use regular expressions with my Barracuda Web Filter?
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How to change login page logo
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What are the things need to be consider when customer is using hypervisor on WSG Vx models.
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How do I transparently proxy traffic to my Barracuda Web Security Gateway from my Barracuda NG F-Series Firewall?
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How do I configure Active Directory integration with the DC Agent on my Barracuda Web Filter?
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Installing the Barracuda DC agent Remotely for remote monitoring of multiple Domain Controllers
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How can I allow Youtube but block other media with my Barracuda Web Filter?
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Why Is My Barracuda Web Security Gateway Not Filtering Traffic Between My SonicPoint AP and My SonicWALL Firewall?
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Does the Barracuda Web Filter support WCCP? How would I set that up?
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Why doesn't my Web Security Agent (WSA) sync behind an upstream Web Filter?
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How do I perform advanced troubleshooting with the WSA?
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What are some guidelines for running reports in web filter firmware versions 7 and above?
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How to use WSA with Kerberos or NTLM and policy fails.
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If google.com is blocked in a domain blacklist, will all *.google.com subdomains be blocked as well on my Barracuda Web filtering/service?
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How to set DNS for a 1010/1011 with quad NICs used or only LAN1/WAN1.
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How can I configure my Barracuda Web Filter to work with the Barracuda Load Balancer using Direct Server Return (DSR) mode?
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How do I configure my Barracuda Web Filter to support NTLM and AD user authentication at the same time?
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Why can't I access a particular website even after exempting the IP on my Barracuda Web Filter?
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What are the best practices when implementing blocking/allowing policies on the Barracuda Web Filter?
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What are some ways in which ransomware viruses have been able to bypass virus checking on the web filter and what are the ways to mitigate against them?
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Why aren't block pages working with https and SSL inspection on my Barracuda Web Filter?
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How can I filter my VPN traffic with my Barracuda Web Filter when it is configured in inline mode?
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Why does Google drive sync application does not connect when behind a Web Filter with SSL inspection is enabled?
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How can I set up the Barracuda Web Filter to be configured to allow a pitney bowes device on the network to function?
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How do I exempt or block by IP or Subnet on my Barracuda Web Filter?
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What steps are necessary for a seamless replacement (RMA / Hardware Refresh) or new setup of a Barracuda Web filter(s)?
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How does a customer troubleshoot computer that cannot access the Internet after uninstalling the WSA?
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How can the Customer install the Barracuda Web Security Agent via a GPO when used with web filter?
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What configurations are not synchronized across a Barracuda Web Filter cluster?
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How can I test connectivity to the support server to troubleshoot a Barracuda Web Filter's failed support tunnel?
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How should I configure the NIC card interface speed and duplex mode of my Barracuda Web Filter?
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Can My Barracuda Web Filter Do SSL Inspection on Proxy and Transparent Traffic at the Same Time?
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Can a Customer use SSL Inspection With My Chromebooks?
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How should support troubleshoot instances where a Barracuda Web Filter blocking legitimate web traffic in "Active" mode?
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How do I find the IP address of a site that I would like to block or exempt?
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Why don't my users see a block page when blocked by my Barracuda Web Filter? How can I change the local redirect address from 172.27.72.27 to something else?
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How can the customer change operating mode of barracuda web filter?
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Web Security Agent (WSA) failing to disable or pass traffic with inline/upstream Web Filter or WSG and being internal or remote?
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Seeing Zero sized reply and squid errors, and or timeouts or packet drops.
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How should I create rules for MAC Machine/s on my Barracuda Web Filter?
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How can I configure my web filter to block Chrome Remote Desktop?
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How should I configure NTLM authentication on my Barracuda Web Filter?
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I put in an IP Block and now I can't access my Web Filter - what do I do?
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Can I put an IP in more than on IP Subnet/Group?
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SSL Inspection and Certifications on the Barracuda Web Filter.
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How can I get my Web Security Agent to work on a computer with Windows installed in a different file such as Windows.0?
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How Can I Configure Mixed LDAP and NTLM or Kerberos Authentication (Hybrid Mode) on My Barracuda Web Filter?
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What ports and IP ranges must be exempted on the Barracuda Web Filter for traffic from CUDAEYE Cameras?
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Why is the web log showing my traffic blocked/allowed for my custom category with no rule created against it?
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How can support troubleshoot certificate revocation errors?
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Using the Troubleshooting tools in the UI to help diagnose traffic concerns, open the GUI and open a support tunnel.
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How can I block application "Onavo" my Barracuda Web Filter?
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How to create IP subnet/group and to apply policy.
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How to Configure Your Ruckus Access Point to Send Syslog Data to the Web Filter for Authentication of Wireless Users.
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How can I connect my Barracuda Web Filter to a Windows IIS FTP Server for backup?
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How can delegated roles be configured on the web filter?
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Why do I get a Barracuda Networks-branded block page for a website that I have set to "Warn" on my Barracuda Web Filter?
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How to check Link Status (Duplex status, Mac Address, IP address, Link Speed, throughput on LAN/WAN Interfaces from Web Interface.
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Why am I Unable to authenticate, using Kerberos authentication?
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.NET applications like Microsoft’s SQL Server Management Studio, Visual Studio 2013, LogRythm Console, etc. are crashing when deployed on a machine with Web Security Agent installed. This affects mainly Windows 7 systems, having .NET 4.5 installed.
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Why am I seeing PC names in the logins on web filters DC agent?
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What can I do when iTunes store purchases cannot complete while using SSL inspection?
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Integrate Meru wireless access point with Barracuda Webfilter for username resolution
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Can I use my WSA if my Web Filter is deployed as a Forward Proxy?
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How can I enable SSL Inspection with my WSA or iWSA?
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Can I import MIME types besides the standard ones provided in the Barracuda Web Filter's interface?
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Will my Web Filter do SSL Inspection?
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Why aren't my MIME Type blocks working on my Barracuda Web Filter?
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Global proxy setting for iOS 7 devices does not work
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How often does Group Membership Synchronization occur on the Barracuda Web Filter or Web Security Gateway?
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Why are websites indicating that I am located in Canada, China, or some other country?
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How do I add static routes on the Barracuda Web Filter?
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Basic requirements for VLANs.
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Can the Barracuda Web Filter filter web traffic across multiple VLANs?
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How Does the Barracuda Web Filter Handle Web Shorteners or Shortening Services like TinyURL or Bit.ly?
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What Can I do If I experience high latency and system load when Energize Updates are updating on my Barracuda Web Filter 210?
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How can I configure Temporary Access on my Barracuda Web Filter?
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Why is the Barracuda Web Filter blocking YouTube videos as MIME Filtered?
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How do I investigate an infection activity on the Barracuda Web Filter?
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Google SafeSearch Works using http, but not https
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How can I troubleshoot instances where the Web Security Agent does not disable itself while behind an upstream Web Filter or Web Security Gateway?
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Why am I unable to install the DC Agent on Windows Server 2003?
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How does the Barracuda Web Filter handle HTTPS filtering?
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How do I set the Web Filter so that it can handle Forward Proxy and Inline Traffic?
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How can I create a user with WMI query permission?
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When using LDAP/Active Directory authentication with DC Agents, why does an unauthenticated user sometimes get the policy privileges of a domain user when using the Barracuda Web Filter?
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How can I troubleshoot and resolve issues with proxy authentication required errors?
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How can I verify that the WMI is working properly on my domain controller to troubleshoot DC Agent related issues?
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How can I verify that traffic is being scanned for malware on my Barracuda Web Filter or Web Security Service?
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When using NTLM or Kerberos authentication, how can I prevent Office 2013 from prompting for authentication using my Barracuda Web Filter?
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How can I correct inconsistent web page accessed by Internet Explorer's cache setting?
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Why aren't my users' IPs being preserved when their traffic passes through my Barracuda Web Filter?
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How do I allow one specific video from YouTube on my Barracuda Web Filter if YouTube is otherwise blocked?
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In what order does the Barracuda Web Filter recognize its Block/Accept rules?
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How can I use quota exceptions in conjunction with the WSA in PLO mode?
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What can the Barracuda Web Filter's troubleshooting tools help you do?
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How can I access military sites requiring certificates which are not in Internet Explorer and Chrome by default?
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Where can I find a list of common MIME types?
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Why is my Barracuda Web Filter not allowing me to proceed past the Warn page?
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How can I filter iPad and similar mobile devices that cannot connect to the Windows domain?
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Will my Barracuda Web Filter integrate with CITRIX or Windows Terminal servers?
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How can I export Barracuda Web Filter tables to CSV format for spreadsheet applications?
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What is one possible explanation for DNS infection activity reported on my Barracuda Web Filter?
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How can I create a quota to grant temporary access based on time or bandwidth on my Barracuda Web Filter?
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When would virtual interfaces be needed without the use of VLANs?
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What are formatting rules to know when entering web site information in Custom Categories on my Barracuda Web Filter?
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When using Kerberos authentication, how can I prevent iTunes from prompting for authentication using my Barracuda Web Filter?
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How can Support configure VLAN 1 when it is not the native VLAN on a Barracuda Web Filter?
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How can I block image search for common search engines using my Barracuda Web Filter?
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What is the Barracuda Web Filter's Ethernet Bypass Hardware? How does it work?
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How does the Barracuda Web Filter application filtering work?
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How do I swap out my Barracuda Web Filter?
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How do I configure Policy Alerts on my Barracuda Web Filter?
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Why does my DC agent fail to connect to the Barracuda Web Filter?
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Why doesn't NTLM authentication to the Barracuda Web Filter work from a Windows Vista or Windows 7machine?
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Why can't I see the Web or Application Logs on my Barracuda Web Filter when using Internet Explorer 9?
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How can I fix full Firmware Storage problems on my Barracuda Web Filter?
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How can I disable SNMP on my Barracuda Web Filter?
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How does the 'exempt users' feature work on the Barracuda Web Filter?
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Can I deploy both a Barracuda Web Filter and a Barracuda IM Server inline?
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How can I add local users to local groups on a Barracuda Web Filter?
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How can I make my users in LDAP log out automatically using the DC Agent on my Barracuda Web Filter?
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Why are my whitelist/blacklist and Content Filter blocks/allows not working for users on my Barracuda Web Filter?
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Why did my CITRIX VIPs suddenly stop working when using the Barracuda Web Filter?
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Can I track time spent at specific websites or by particular users on my Barracuda Web Filter?
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How can I turn off content caching on the Barracuda Web Filter?
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How can I clear the HTTP cache on the Barracuda Web Filter?
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Why is my Barracuda Web Filter causing HTTPS warned sites to be blocked instead of displaying a Warn page?
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How do I set up the Barracuda Web Filter DC Agent on a 64-bit system?
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How can I block new and uncategorized proxies on my Barracuda Web Filter to prevent policy circumvention?
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Can the Barracuda Web Filter be configured for passive monitoring? How?
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How can I monitor virus infection activity on my client machines connected to the Barracuda Web Filter?
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How do I setup Virus Checking on my Barracuda Web Filter?
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How do I generate or configure a recurring report from my Barracuda Web Filter?
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What do the indicator lights mean on the front of my Barracuda Web Filter?
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Does the Barracuda Web Filter allow customers to delegate administrative features to other administrators or users?
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How do I block or allow applications on the Barracuda Web Filter?
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How can I prevent all unauthenticated Barracuda Web Filter users from accessing the Internet?
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Why is the Spyware Removal Tool hanging at the download stage on the Barracuda Web Filter when I attempt to scan my machine?
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How does the LDAP Discovery feature work on my Barracuda Web Filter?
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Why are some domains not loading content properly when trying to access the domain through my Barracuda Web Filter?
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How does the domain list work under custom categories on my Barracuda Web Filter?
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How can I convert UNIX timestamps to a human-readable format in Excel when exporting CSV reports from my Barracuda Web Filter?
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How can I block IP-based surfing on the Barracuda Web Filter?
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How do I enable the hover-over status bar display in my web browser for my Barracuda Spam & Virus Firewall or Barracuda Web Filter?
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How do I change the message my users receive when an advertisement is blocked and it does not show the normal block page?
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Does the Barracuda Web Filter protect against the Conficker/Downadup worm?
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Why is my Barracuda Web Filter not filtering HTTPS traffic?
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Why won't my Barracuda Web Filter load IIS authentication sites?
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Why isn't my Barracuda Web Filter working when configured to block all HTTPS traffic?
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Why is the Spyware Removal Tool pop-up constantly appearing on my Barracuda Web Filter?
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Will the antivirus protection capabilities of my Barracuda Web Filter allow me to cancel my antivirus subscriptions?
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Will NTLM Authentication work when my Barracuda Web Filter has been set up using WCCP to route traffic?
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How can I block streaming media on my Barracuda Web Filter?
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How should I deploy my Barracuda Web Filter in an environment where users proxy through a Microsoft ISA server utilizing Integrated Windows Authentication?
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How can I view log entries over a certain time period on my Barracuda Web Filter?
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Why is my Barracuda Web Filter allowing users to search for offensive images even though I have enabled the Safe Search feature?
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How can I know when my users access pages that my Barracuda Web Filter will 'warn' or 'monitor'?
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How can I change the block message that my users see when they are blocked because of a exception I've configured on my Barracuda Web Filter?
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Will my Barracuda Web Filter block Windows vulnerabilities?
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Why aren't my domain exemptions being recognized on my Barracuda Web Filter?
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How do I block Sirius streaming radio with a Barracuda Web Filter?
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Why aren't new users' credentials syncing with the Account View page on my Barracuda Web Filter?
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How can I force a user to log off my Barracuda Web Filter?
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Can I see bandwidth usage per user on the Barracuda Web Filter?
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How can I configure the Barracuda Web Filter LDAP sevices to talk to an Apple LDAP server?
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Can the Barracuda Web Filter block or allow only portions of a domain?
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What is the "Spam" Content Filtering category on my Barracuda Web Filter?
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How can I block sites with an extra '.' at the end of the domain in the URL using my Barracuda Web Filter?