The primary reasons companies use Internet filtering and monitoring are to block inappropriate content (44%), control productivity (32%) and preserve network bandwidth (23%).

Now you can easily monitor, set and enforce your own web usage policy with our Web Filter application—without the hassles of outsourcing it. Whether you want to use our blocklists or set your own policies for hosts, domains and files types, you can block access to inappropriate sites. Reporting enables you to view a big picture of the kind of Web browsing behavior occurring on your network.

Key Features:

• Open source & free under the GNU General Public License (GPL)
• Pass, Block, and Logging options for all categories, such as gambling, webmail, shopping, and pornography
• Categories update automatically
• Add your own URLs and file types to block, log, or pass
• No proxy settings required
• Local database ensures fast web browsing
• Set time and user based policies (e.g. allow shopping during lunch and outside business hours)
• Reporting and event logs help monitor web browsing behavior

Spam Blocker enables administrators to block spam at the gateway before it ever reaches the users.  Zero client installations and an intuitive GUI make it easy for administrators to: 

• Leverage the best spam filtering techniques including Bayesian Filters, Razor, realtime block lists (RBLs), OCR for image spam and tarpitting
• Provide individual quarantines for each mailbox
• Filter SMTP, POP & IMAP

And it impacts you in other ways. According to a recent study, the cost of spam messages to U.S. companies—in terms of productivity and the equipment, software and manpower to combat it—was upwards of $10 billion in 2004.

So the key is to stop spam before it stops you.

This powerful Spam Blocker protects you with top-notch spam scanning and blocking at the edge of your network—before it can do damage or slow you down. Using the latest technologies, Spam Blocker transparently scans for spam, marks messages and intercepts emails. It requires no alteration of your network’s mail configuration and is constantly updated to guard against any refinements in trickery or techniques that senders create to get around other solutions.

Key Features:

• Open Source & Free Under the GNU General Public License (GPL)
• Quarantine Digest— Spam Blocker is optimized to make sure “good” mail is never mistaken for spam. However, if a “good” mail is ever identified as spam, Spam Blocker gives each team member in your company their own personal “quarantine” list. They can find that email without having to track down an administrator
• Personal Passlist—users can designate certain email addresses as “good” without having to bother your IT person
• Image based filtering — scans images within emails to stop this new type of spam
• POP, IMAP & SMTP support
• Reports give a comprehensive view of the spam environment on your network, including  the source of the spam and how much spam is received in aggregate and by user

• Protect users from browsing  websites that install malware
• Scan network traffic to block spyware before users can install it
• Ensure that signatures are always current with automatic updates 

The battle with spyware is constant, and its infection is insidious—you may not even know you have it until it’s doing real damage to your network. Weird settings, an abundance of pop-up ads (even when you’re not on the Web), clicking hyperlinks that don’t work and a sluggish system are just a few of the symptoms to look out for.

Stop spyware, adware and malware before it makes it to your network—and find already infected computers with this powerful Spyware Blocker. By use of a wide range of cutting-edge technologies, including URL blocking, cookie blocking, ActiveX blocking of bad vendors and subnet logging, Spyware Blocker will protect you from attacks and infections.

Key Features:

• Open Source & Free under the GNU General Public License (GPL)
• Manage your Block and Pass Lists  
• Special “request pass” button makes it easy for a user when blocked to request the site to be white listed at the administrator's discretion
• Event log shows real-time spyware detected and blocked
• Reports track violations in summary, detail, and by user

• Conserve bandwidth by blocking applications like peer-to-peer that open multiple TCP ports
• Improve productivity by blocking IM & online games that evade firewall rules
• Write custom signatures for any protocol

These applications are extremely aggressive and will sneak out on ports used for other vital network traffic such as web and email, making it nearly impossible to control them with firewall rules.

Protocol Control takes a different approach to log and/or block these applications using their signatures. This allows you to lock down the unwanted activity.

Key Features:

• Open source & Free under the GNU General Public License
• Protocol control lets you select the protocol signatures to log or block
• Custom rules can be added for any unsupported protocols
• Time based policies let you decide when and if these applications are permitted
• Reporting lets you see which protocols are active on your network and who is using them

Two virus blockers provide an extra layer of security for businesses with a history of virus problems.  Virus Blocker and Kaspersky Virus Blocker leverage distinct scanning engines, signature databases and research teams.  This provides a second set of eyes to look at every email message, website, download and file transfer, which can be critical during the early stages of a virus outbreak.  Kaspersky Virus Blocker is proprietary software and is not available under the GNU General Public License.  

Key Features:

• ClamAV is Open source & Free under the GNU General Public License (GPL)
• Kaspersky is the best-of-breed anti-virus solution, starting at $10 per month
• Unlike desktop solutions, Untangle sits at the network gateway and automatically updates signatures so you don’t have to worry about whether or not your users have disabled their client software in anyway 
• Protection on the most common email protocols SMTP, IMAP, and POP
• Protection for webmail and file transfer via HTTP and FTP protocols
• Reports and event logs show you what viruses are being blocked on the network

• Protect users from email phishing attacks and fraudulent pharming websites
• Protect multiple protocols, including HTTP, SMTP, POP & IMAP
• Ensure that signatures are always current with automatic updates

Maintain the highest level of protection for you and your employees with our Identity Theft Blocker. This application protects your network against “phishing” attacks—emails that direct users to fraudulent websites with the intent to steal personal identity, credit card information and more.

Identity Theft Blocker marks phishing emails and puts them in a user’s quarantine. Transparent, powerful and easy to use, it requires no alteration of your network’s mail configuration.

Key Features:

• Open source & Free under the GNU General Public License (GPL)
• Block phishing email on SMTP, IMAP, and POP
• Event log of phish caught
• Reports show how many fraud emails were stopped, who they were targeting, and from where they were sent

Routing allows all hosts to share internet access via Network Address Translation (NAT), and also provides DHCP and DNS services and advanced routing capabilities. The administrator can configure NAT, as well as related redirect rules, and DMZ host settings. The administrator can also add static DHCP and DNS entries, as well as custom routes to support more complicated networks.

QoS is a great way for administrators to improve VoIP call quality and ensure that critical apps have priority access to bandwidth.  QoS enables administrators to create a pool of bandwidth that is reserved for critical apps.  Administrators can decide what percentage of their bandwidth to reserve depending on the size/type of their connections and the intensity of critical apps they intend to run concurrently.  By segmenting services into high, medium and low priority queues, administrators can minimize interruptions to sensitive apps (VoIP, SSH, VNC, RDP, etc.) from bandwidth intensive downloads or websites (Youtube, etc.) that may be lower priority.