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Knowledgebase

Answers to the Most Common Questions We Receive

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.

General Solutions
When I try to upload an SSL/TLS certificate, why does my Barracuda Networks product reject it with an invalid certificate error?
How can I get a list of all API variables on the Barracuda Spam Firewall, Web Filter, and Load Balancer?
What do these Energize Update error codes on my Barracuda Networks products mean?
Why does my new VeriSign certificate show as Expired when I upload it to my Barracuda Networks product?
How should I install a wildcard certificate onto my Barracuda Networks product?
What is the measured BTU of each Barracuda Networks product?
Why are the Energize Updates and Firmware Update pages in my Barracuda Networks product's Web user interface so slow?
Do Barracuda Networks products support IE7 (Internet Explorer 7)?
How do I restore a previous configuration file on any Barracuda Networks product?
How do I apply a firmware update without rebooting my Barracuda Networks product?
How do I set up secure administration using SSL/TLS on my Barracuda Networks product?
Why are different pages in my Barracuda Networks' Web user interface taking a while (or failing) to load?
When should I reimage my Barracuda Networks product? How should I do it?
Why am I getting a checksum error when trying to restore a configuration backup onto my Barracuda Networks product?
What port should be used for LDAPS on my Barracuda Spam Firewall?
Does the Barracuda Spam Firewall's Outlook plug-in work with Microsoft Vista?
Why won't users show up on the Account View page when the session manager and DC Agents are have been configured with my Barracuda Web Filter?
How do I schedule automated FTP backups on my Barracuda Networks product?
Will my Barracuda Networks product automatically update for daylight savings time?
What should I do if my Barracuda Networks product cannot reach the Energize Updates server?
How do I set up a cluster of Barracuda Spam Firewalls or Web Filters?
How do I use a custom NTP server with any Barracuda Networks product?
How do I limit administrator access on my Barracuda Networks product to a specific IP address or IP range?
Why is the automatic backup that I just configured not working on my Barracuda Networks product?
Why do I see a "System currently undergoing maintenance" message when I try to log into my Barracuda unit's Web user interface?
Can I export my Barracuda Networks product's logs to a text or a CSV file?
Why am I seemingly stuck at "Run Level 3" during boot-up on my Barracuda Networks product?
How can I reset the admin password on any Barracuda Networks product?
Can I enable a guest (read only) administrator's account for my Barracuda Networks product?
How do I as a customer report potential security vulnerability to Barracuda Networks?
How do I set up SNMP monitoring on my Barracuda Networks product?
What should I do when the System or CPU Fan shows 0 RPM or oscillates drastically on the status page of my Barracuda Networks product?
Why is there a red status indicator next to one of the units in my Barracuda Spam Firewall or Barracuda Web Filter cluster?
What if there isn't a link light on the WAN/LAN/ethernet/network port of the Barracuda Web Filter or Barracuda Web Application Firewall?
Why are my clustered Barracuda Spam Firewalls behaving so slowly after upgrading to the 3.5 firmware?
How do I configure SMB backups for my Barracuda Networks product?
Why am I getting emails asking me to renew my Energize Updates from my Barracuda Networks product?
Why can't I mark a specific message as Spam or Not Spam on my Barracuda Spam Firewall?
What are PTR records and why might I need them after installing my Barracuda Spam Firewall?
Why is the firmware storage on my Barracuda Spam Firewall displayed in red as nearly full?
Why won't some or all of my Barracuda Networks product's Energize Updates download properly?
How many watts does my Barracuda Networks product draw?
Why aren't notification emails being sent out on any Barracuda Networks product?
How do I fix the time on any Barracuda Networks product?
How can I rebuild the RAID on a Barracuda Networks product from the Web user interface?
Does Barracuda conduct its own R&D in addition to leveraging open source technologies?
What needs to be done to move a Barracuda Networks product from a 110V to a 220V environment?
Why is my Barracuda unit accepting connections on port 8000? May I change the administration port?
Why won't my Barracuda Networks 8x0 or 9x0 models boot after losing power?
Why isn't recipient verification working on my Barracuda Spam Firewall, even though I've configured my mail server to reject invalid mail?
How do I block NDR backscatter from Google Groups and Blogger with my Barracuda Spam Firewall?
How should I set up POP3 journaling on my Barracuda Message Archiver?
Why do I get a blank screen when trying to activate my Barracuda Networks product?
What are the temperature and humidity requirements for my Barracuda Networks product?
How many entries will my Barracuda Networks product store in the logs?
Is my Barracuda Networks product vulnerable to DNS cache poisoning attacks?
How should I request an SSL/TLS certificate from Microsoft Certificate Services for use with my Barracuda Networks product?
How do I activate the Energize Updates subscription for my Barracuda Networks product?
How do I configure inbound port forwarding on my Barracuda Link Balancer?
Can I administer my Barracuda Load Balancer via the LAN port?
Why are scheduled reports on my Barracuda Networks product being delayed?
Why is my Barracuda Spam & Virus Firewall not passing mail to Microsoft Exchange 2007 distribution groups?
Why is my Barracuda Spam Firewall reporting fewer spam messages blocked since upgrading to a new firmware version?
How can I use my MDaemon LDAP server with my Barracuda Networks Product?
How can I configure GroupWise to use email aliases with my Barracuda Spam Firewall?
What filter should I use on my Barracuda Spam Firewall for a Zimbra LDAP server?
Why do certain messages in the message log of my Barracuda Spam Firewall have spam scores of -1001.00?
Can I backup my Microsoft Exchange Server using the Barracuda Backup Service?
What is the RADIUS authentication module on my Barracuda SSL VPN and how can I configure it?
How do I request a new feature for a Barracuda Networks Product?
What are the heat dissipation specifications for Barracuda Network Products?
What is emailreg.org and how does it affect my Barracuda Spam Firewall?
How can I change the IP address and other network information on my Barracuda Networks Project without using the web-based interface?
How do I update the firmware on my Barracuda Networks product?
How can I change the password for the admin account or the ssladmin super user account on my Barracuda SSL VPN?
How can I modify user account attributes and information on my Barracuda SSL VPN?
How can I upload an SSL certificate from RapidSSL to my Barracuda SSL VPN?
What is the difference between the SSL VPN Web Interface and the Appliance Web Interface on my Barracuda SSL VPN?
How can I assess the vulnerability of my Barracuda Spam & Virus Firewall? What ports and protocols are used?
How can I prevent my source IP addresses from being translated to the link address when the firewall is disabled on the Barracuda Link Balancer?
How can I create inbound firewall rules for 1:1 NAT rules on my Barracuda Link Balancer?
How can a WAN link be used as a purely private link (VPN connections) on my Barracuda Link Balancer?
What SSL certificate formats are compatible with my Barracuda Networks product?
Where can I find documentation about rack mounting my Barracuda Networks product model 6x0 and higher?
Why am I receiving “Your machine does not have access rights to login as the specified user” error message when attempting to access my Barracuda Product GUI?
Is there a Barracuda email newsletter or any other method for receiving Barracuda product information and updates?
Does Barracuda Networks erase disk drives of returned systems?
How can I determine the MAC address of my Barracuda Networks product?
How can I monitor the incoming live traffic on certain ports, hosts or IP addresses on my Barracuda Networks product?
Why is a new firmware version available for download and then is not available a few days later on my Barracuda Networks product?
Can a Barracuda Networks appliance firmware be deployed on virtual platforms like VMware?
What are the latest features for Barracuda Control Center?
What should I do about my netfence E-appliance displaying the wrong temperature (or possible sticking fans)?
How can I save event logs to send to support?
Will transferring snapshots between VM nodes cause MAC address conflicts?
Why do I see "C:\fakepath" placed in place of my actual path using the Upload functionality on my Barracuda Product?
Why has the Barracuda Backup Agent database been moved to another storage volume?
Why is my Barracuda unit taking such a long time to download firmware updates?
How can I place my Barracuda Product into Recovery Console mode to enable support access, run hardware tests, or perform system recovery?
How do I map a drive with Network Connector on the Barracuda SSL VPN?
How do I configure Attributes and what do the options mean on my Barracuda SSL VPN?
How do I disable ESMTP Inspection on CISCO ASA through Cisco Web Interface?
How can I subscribe to Outage Notification alerts for my Barracuda Networks services?
What should I do if the following error is generated during a Barracuda Backup restore? “Exclusive access could not be obtained because the database is in use.”
Why do my Barracuda SSL VPN's mapped drives not mount with the new WebDAV implementation?
How can I resolve the situation where my SSL VPN agent does not launch when I am using Internet Explorer 9 and have Java 1.5 installed?
Why is the snapshot so large when performing a virtual snapshot?
How can I deploy SSL Cert to IOS Devices for my organization?
What rule does a customer need to place on their firewall to have a PC connected via SITE TO SITE VPN and to enable the ability to use the MGMT VIP to connect my boxes?
How many minutes is the Barracuda Email Encryption Server GUI timeout?
How can the customer know if their Barracuda Product will be affected by the leap second change on July 30th, 2015
How can I generate a CSR using openssl?
How does Barracuda Networks Manage Returned Device Drives?
How can I troubleshoot issues with Barracuda Vx product activation?
If google.com is blocked in a domain blacklist, will all *.google.com subdomains be blocked as well on my Barracuda Web filtering/service?
How can Support decrypt packet capture data without a private key?
BNSEC-02067: Non-Persistent XSS in Barracuda Firewall v6.1.5
How do I use CudaConnect for screen sharing and instant messaging with Barracuda Technicians?
How do I get trained for rsupport/CLI access as a partner/reseller?
Why am I getting a Code: -9 error?