On security of GRE/IPsec scenarios
As we've already discussed, there are many ways to setup GRE (or something else) over IPsec and they all have their advantages and disadvantages. Recently an is...
Author: Daniil Baturin
When VyOS CLI isn't enough
Sometimes a particular configuration option is supported by the software that VyOS uses, but the CLI does not expose it. Since VyOS is open source, you can alwa...
DNS forwarding in VyOS
Update (February 2021): As of VyOS 1.2.0 "service dns forwarding listen-on" has been deprecated. Please use "service dns forwarding listen-address" instead. In ...
Loopback and the dummies
"There is no place like 127.0.0.1" the old saying goes. While the loopback interface is most often seen as the interface where the 127.0.0.1 address is assigned...
Naming of the nightly builds
Historically, we used to use "999.$timestamp" version numbers for development builds, including nightly builds. In our build scripts termninology, a development...
VyOS to leverage the blockchain technology
Wild success of the blockchain technology on the mass market in the past couple of years is truly remarkable and it allowed many startups to raise substantial c...
Take a third option: site to site OpenVPN
I've written a long series of post about setting up IPsec VPNs between NATed machines. As you've already seen, with some creative configuration it's possible, b...
How to use AS path matching in your BGP policies
AS path is one of the most fundamental attributes of a (e)BGP advertisments. Its length is the first parameter in the best path selection algorithm (shorter is ...
Firewall groups today and tomorrow
Substantial work has been done by Marian Tudosoiu to bring IPv6 firewall groups to the current implementation of firewall configuration scripts even before we g...
The night of living dead protocols: RIPv2
RIP's name seems to have anticipated its ultimate fate. It used to stand for Routing Information Protocol before newer and better protocols killed it. Still, mo...
