Exporting NetFlow from Linux to a collector over IPv6
There is another project out there in the ether that I have a hand in providing input for. One of the features that I felt was necessary for it is exporting NetFlow information from traffic the Linux machine handled, to a collector. This is dual-stack traffic, but I have the collector listening on IPv6.
Firstly, I needed something that would gather and export the data, so I found softflowd. My ubuntu server had it in the repo, so a quick apt install got it onto the machine easily enough. You need to edit /etc/default/softflowd and set what interface(s) you want it capturing & generating flow data from, and what options to feed to the daemon, like what server:port to export that data to:
INTERFACE="eth#"
OPTIONS="-v 9 -n [x:x:x:x::x]:9995"
Fill in the correct interface name you want to gather data from. The -v 9 option tells it to use Netflow v9, which has IPv6 support The -n option is used for specifying the collector machine’s IP and port, and fill in for the correct IPv6 address of that collector. Above is the format for specifying an IPv6 host running a collector, like nfcapd. Then you can fire up the softflowd daemon, Continue reading
CLUS Keynote Speaker – It’s a Dirty Job but Somebody’s Gotta Do It
Did you guess by the title who will be the celebrity keynote speaker for CLUS San Diego? It’s none other than Mike Rowe, also known as the dirtiest man on TV.
Mike is the man behind “Dirty Jobs” on the Discovery Channel. Little did he know when pitching the idea to Discovery that they would order 39 episodes of it. Mike traveled through 50 states and completed 300 different jobs going through swamps, sewers, oil derricks, lumberjack camps and what not.
Mike is also a narrator and can be heard in “American Chopper”, “American Hot Rod”, “Deadliest Catch”, “How the Universe Works” and other TV shows.
He is also a public speaker and often hired by Fortune 500 companies to tell their employees frightening stories of maggot farmers and sheep castrators.
Mike also believes in skilled trades and in working smart AND hard. He has written extensively on the country’s relationship with work and the skill gap.
I’m sure Mike’s speach will be very interesting…and maybe a bit gross…
The following two links take you to Cisco Live main page and the registration packages:
Cisco Live
Cisco Live registration packages
Install the CORE Network Emulator on Amazon AWS
Having set up an Ubuntu Linux server running on a free micro-instance in Amazon’s Web Services EC2 service, I’d like to see how some of the open-source network simulation tools I’ve been using work in the cloud.
First, I will install the CORE Network Emulator on my Amazon AWS EC2 virtual private server. Please read the rest of this post to see how it works.
I expect that the CORE Network Emulator will install and run on an Amazon EC2 instance because it uses Linux Containers (LXC) as its virtualization technology. I have already observed that LXC containers work when run inside a virtual machine on my Laptop computer. It should work the same when running in a virtual machine in Amazon’s EC2 cloud computing service.
Install CORE
I’ve already described how to install the CORE network emulator in previous posts so I will list the installation steps below without any explanation. For details, please see my post on how to install the CORE Network Emulator from source code.
Install prerequisite software
$ sudo apt-get update
$ sudo apt-get install bash bridge-utils ebtables
iproute libev-dev python tcl8.5 tk8.5 libtk-img
autoconf automake gcc libev-dev make python-dev
Continue readingNetworking Field Day 9: Brief Recap
I’m sitting in the San Francisco airport with nothing better to do than writing blog posts, so let’s see what we’ve seen and learned during the Networking Field Day 9.
Most videos recorded during the week are already online. You’ll find links to them in the Presentation Calendar section.
Read more ...Cisco Live 2015 – Mike Rowe Announced as Keynote Speaker
Cisco just announced to the Cisco Champion community that the guest speaker for the keynote is going to be none other than …… Mike Rowe!! In case you don’t know, Mike Rowe is an American TV host, narrator, actor, and former opera singer. He is best-known for his extensive work on the Discovery Channel. He has starred on the shows Dirty Jobs, and narrated many shows including Deadliest Catch, American Hot Rod, and Ghost Hunters. He also did a quick stint on the QVC Shopping Network where he was hired after talking about a pencil for nearly eight minutes. According to his bio, he worked the graveyard shift for just three years, until he was ultimately fired for making fun of products and belittling viewers. I’ve included one of my favorite videos from his time at QVC down below, be sure to check out some of the other ones if you haven’t seen them.
Mike also founded the mikeroweWORKS Foundation, which promotes hard work. Mike has long been a supporter of the skilled trades and his foundation works hard at awarding scholarships to men and women who demonstrate an aptitude for doing the work that America needs. He is also Continue reading
Cisco Live 2015 – Guest Keynote Speaker
The time has come to announce the guest closing Keynote speaker for Thursday! This information is hot off the press so be prepared for some serious excitement! The closing Keynote speaker is going to be just AWESOME. I have been asking, as well as have others, for a few years to get this man for the closing […]
The post Cisco Live 2015 – Guest Keynote Speaker appeared first on Fryguy's Blog.
IRS Banner Fail
So I go to the IRS Page that allows taxpayers to check status of a refund. This is under the number “3” at the following URL–
http://www.irs.gov/Refunds
The following banner pops up prior to setting a browser cookie.
I’m not a lawyer, so I have some questions regarding how to interpret this–
- Should this be read as–
- Use of this system constitutes consent to monitoring, interception, recording, reading, copying or capturing by authorized personnel of all activities. (or)
- Use of this system constitutes consent to monitoring, interception, recording, reading, copying or capturing by authorized personnel of all activities.
- And what does authorized personnel of all activities mean. If I use the system, I have to be authorized, or I’m breaking the law (as identified two sentences later–Unauthorized use is prohibited).
- So based on #2 above (authorized user). When I use that definition of authorized user in #1, the IRS isn’t accepting responsibility if I somehow happened to perform the following on another user’s information – monitoring, interception, recording, reading, copying or capturing. (doesn’t exclude my accountability, but it certainly alleviates the IRS accountability)
- “There is no right to privacy in this system“?
AnsibleFest London Recaps
We posted our recap of AnsibleFest last week which has all of the links to the presentations, but we also wanted to provide you with a few recaps by AnsibleFest attendees.
elsaticsearch: Highlights from configuration management camp & Ansiblefest London
DevOpsGuys: #ANSIBLEFEST2015
Silpion: #ANSIBLEFEST London 2015
