I check my site logs pretty often to find out how people are arriving at this blog and have seen an increase in traffic that points to an exchange I had with a visitor about Vyatta blocking email attachment downloads. I wanted to post this quick entry so that people looking for a quick fix could get to this without running through the complete conversation on the other post: http://d3planet.com/rtfb/2009/11/02/vyatta-firewall-basics-and-configuration/
Here’s the quick and dirty solution:
Problem: Vyatta is blocking download of email attachments. This solution only applies if your implementation is using the web proxy and squidguard URL filtering.
Solution: Use the following command to get Vyatta to allow IP addresses to be called directly.
set service webproxy url-filtering squidguard allow-ipaddr-url
set service webproxy url-filtering squidguard rule XX allow-ipaddr-url
Keep reading for more info on the issue…
Continue reading Vyatta Blocking Email Download of Attachments
Vyatta is a powerful enterprise class software router that has some really incredible features. It has a CLI (command line interface) as well as a web interface. I’ve gotten a few requests about configuring it as a front system but until now have only really worked with Vyatta as a pure routing appliance internal to my network. It has been my traffic cop between my lab subnet, user subnet, and server subnet but now I’ll try to configure it as a front end based on an exchange I had on another thread.
This should be able to give you some examples with getting started using Vyatta as a front firewall.
If you don’t have the software, you can download a free version, called Vyatta Core, from Vyatta’s website. You have to register, but don’t worry, they won’t spam you and they have extensive documentation on the product that you can pull down after registering. It’s an excellent resource to learn and practice your routing skills, especially since you can stand up the product on random hardware or in a virtual machine. Vyatta even has downloads specific to VMware implementations. Check it out and come back if you’re interested in seeing this post through. http://www.vyatta.com.
And now for the good part.
Continue reading Create a Router with Front Firewall using Vyatta on VMware Workstation
For a post that is a little more advanced, try this one: Create a Router With Front Firewall Using Vyatta on VMware Workstation.
Otherwise… read on. 🙂
A few weeks ago, I installed Vyatta Open Source as a router internal to my network to see how it handled traffic between multiple subnets. To put it plainly, it worked like a champ! I put the router in place, assigned IP addresses to the NICs (network interface cards), and let the system do its thing. It now connects traffic between my physical network, my production virtual network, and my virtual lab running on ESX 3.5. I can easily manage most firewalls and routers that have a GUI but Vyatta presented a new challenge to me. In the case of this system, for some tasks it’s a lot easier to use the command line interface (CLI).
So without further ado, here’s the basics of Vyatta’s firewall.
Continue reading Vyatta Firewall Basics and Configuration
I’ve been running multiple subnets in my lab, and been dealing with the pain of having to VPN into each separate subnet when needing to make a change, test something, or deploy something. It’s been a learning experience and I’ve configured both OpenVPN and ISA Server 2006 VPN’s and successfully bounced around the various networks as necessary, but it’s been a real pain to have to VPN into one network, grab files, and then VPN into a different network to test and deploy those files, as an example. So I began a hunt for an open source router that would give me more control than Untangle, which is an excellent open source routing and firewall tool. Simply put, I wanted finer grained control than Untangle is designed to supply. As an example, I wanted to be able to filter network traffic based on mac addresses instead of IP addresses.
In my search, I came across Vyatta, which is an open source networking package that likes to compare itself to Cisco in functionality and control. I decided to check out their site and found that they offer a free ‘Community Edition’. I looked at the features of the community edition, then checked the VMware Appliances site and found that Vyatta has a pre-built VMware appliance. NICE! I filled out a short registration form, downloaded the appliance and all the documentation, which is thick to say the least, and fired up the appliance in VMware Workstation.
Continue reading Vyatta Community Edition, Open Source Router