Sophos Client Firewall suddenly stops Internet Explorer working

Post navigation

Sophos AV blocking Internet Access
Free tools Sophos Home for Windows and Mac. Stop Unknown Threats Powerful next-gen protection technologies like deep learning and intrusion prevention keep your organization secure. Full VLAN support provides powerful segmentation options by trust, traffic type, location, and other criteria across your physical network infrastructure. Top Performing Protection XG Series hardware appliances provide industry leading performance at every price point with the ultimate in flexibility, connectivity and reliability. Great value, affording you all the benefits of enterprise-grade protection without the enterprise price tag. The following may be relevant, but was only on one of the machines: Pre-defined policy templates let you protect common applications like Microsoft Exchange or Sharepoint fast.

See Hidden Risks and Threats

Sophos Certified Administrator - XG Firewall

The Sophos Certified Administrator program is designed exclusively for Sophos customers. The goal is to enable Sophos customers and end users to become certified on Sophos products. Sophos Partner must register for a partner training of the Sophos Partner Program. This customer training is designed for technical professionals who will be managing Sophos XG Firewall and provides the skills necessary to manage common day-to-day tasks.

It consists of presentations and practical lab exercises to reinforce the taught content, and electronic copies of the supporting documents for the course will be provided to each trainee through the online portal.

The course is expected to take two days to complete, of which approximately half will be spent on the practical exercises. This course is split into different modules, with practical labs combined throughout the course to allow for application of the content discussed. To complete the course, trainees must take and pass an online assessment.

The assessment tests their knowledge of both the presented and practical content. Each student will be provided with a pre-configured environment which simulates a company network with two sites, a head office and a branch office and contains Windows Servers, a Windows Desktop and two XG Firewalls.

An onsite training requires a minimum of attendees and the requester must provide the training facilities training room, projector, high speed internet access. This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. We also use some non-essential cookies to anonymously track visitors or enhance your experience. To control third party cookies, you can also adjust your browser settings.

Sophos makes no guarantees about the accuracy of the results other than that they reflect the choices of the users who participated. Graham Cluley runs his own award-winning computer security blog, and is a veteran of the anti-virus industry having worked for a number of security companies since the early s.

Now an independent security analyst, he regularly makes media appearances and gives computer security presentations. Follow him on Twitter: Skip to content Award-winning computer security news. Free tools Sophos Home for Windows and Mac. Sophos Mobile Security for Android. Drop lets it know the connection was actively refused, while reject just lets it time out. Once you hit save, it will create the rule add it to the list. In fact, I almost forgot about this step when writing this up. Notice the little box next to the number 13?

Now, a smart and enterprising person may realize that you could do a lot here. In fact, if you have smart teenagers in the house, one edit I recommend here: This means that that only the router itself, and your server can do external DNS lookups.

Every other device on the network can only, and must look to these devices for DNS lookups. Such as OpenDNS Be careful though, you may break things. Now, the rest of the settings in the firewall section is pretty self explanatory. You can block a continent, or you can block a single country.

Just remember, if you block traffic from these regions, it means that they will not be able to access any services or sites that you are hosting on your network. This could mean that your blog is not accessible from these regions. But then again, this may be exactly what you want. The rest of the settings are probably not needed, or at least, you may not need to mess with.

Stay tuned for my next post, where I talk about adding NAT port forwarding for services like web servers.

See it. Stop it. Secure it.

Leave a Reply

Sophos Client Firewall suddenly stops Internet Explorer working. The configuration on both machines for the Sophos firewall is the default configuration with added as a trusted application. Thus I have both 'Block by default' and 'Use checksums to authenticate applications' selected. It looks like the firewall is blocking. Sophos blocking ALL of my internet access!!! I recently downloaded the free version of Sophos on my new computer, and ever since it downloaded, I have no internet access at all. I've seen threads on how it affects internet browsers exclusively, however the case for me is that it blocks EVERYTHING!!! Eventually I went into Sophos preferences, and set both Block Access and Block Downloads to off and my internet started working. I thougth that maybe my version of Sophos was corrupt so I removed the original and re-installed a new version.