Featured Interview: CA Technologies’ Tim Diep – Why Network Assurance is Vital to the Service Chain
Network assurance saves you time, money and keeps you away from implementation sweats. Learn more with CA Technologies' Tim Diep.
Ping on You! – small weekend web/CGI project
For best article visual quality, open Ping on You! – small weekend web/CGI project directly at NetworkGeekStuff.
After a few previous web programming endeavors (both here on networkgeekstuff.com with SDN programming and in real life job) I had a taste to develop “something” and since I am a network geek, I wondered what I have needed in the past as network tools that would ideally be placed on the internet. So I came to the very basic list of things like ping, nslookup or putty as tool accessible only via a browser.
So without more delay, I give you first beta release of Ping on You! – pingonyou.com the list of current features is:
- ping
- nslookup
- wget (for http response checks)
- whois / ripe database
Here is a quick view how it looks when you try to ping google’s public DNS service on 8.8.8.8, since in the background a linux like ping tool is used, you have the same output:
Additionally, here are some features that I plan to do when I get more time, however no release date right now because there are much more complex than the above ones:
- TCP port openings checks Continue reading
[minipost] Windows partition editing with diskpart
For best article visual quality, open [minipost] Windows partition editing with diskpart directly at NetworkGeekStuff.
This will really be a micro-post as I only want to document this for my benefit. This is a way how to change partition table for disks, or USB sticks. In my example, I had a linux live boot USB stick that I needed to quickly convert into a usable storage USB stick with NTFS under windows and of course the visual GUI tools under My Computer -> Manage -> Disk Management was not having full visibility on all partitions that the linux created on this USB stick, so this is how to actually do partitioning on windows.
So without more delay, this is an example how to clean the USB stick partition table and reformat it for windows use:
- start command prompt as Administrator and type “diskpart”
- enter “list disk”
- enter “select disk X”, where X is the and number of your USB stick ( ergo “select disk 1″ )
- enter “clean”
- enter “create partition primary”
- enter “select partition 1″
- enter “active”
- enter “format quick fs=ntfs”
- enter “assign”
- enter “exit” to leave diskpart
In summary, short, but hopefully useful minipost for someone.
Beyond Software-Defined Networks
In the future, will software define everything?
Containers & Comparisons: Shovel Or Spoon?
Evaluating container technologies and tools requires looking at appropriate metrics and asking the right questions.
Securing A Cisco Router: The Basics
Don’t leave your Cisco device exposed on the Internet. Take these steps for basic security.
Adding Git and Docker Machine Awareness to OS X
In this post I’m going to share how to add some Git and Docker Machine “awareness” to your OS X Bash prompt. This isn’t anything new; these tricks are things that Bash users have been employing for years, especially on Linux. For most OS X users, though, I think these are tricks/tools that aren’t particularly well-known so I wanted to share them here.
I’ll divide this post into two sections:
- Adding Git awareness to your Bash prompt
- Adding Docker Machine awareness to your Bash prompt
Please note that I’ve only tested these on El Capitan (OS X 10.11), but it should work similarly for most recent versions of OS X.
Before I get started, allow me to explain what I mean by “awareness”:
- For Git, it’s the ability to show the currently checked-out Git branch in your Bash prompt as well as tab completion for Git commands, branches, and remotes.
- For Docker Machine, it’s the ability to show the currently-active machine (made active via
eval $(docker-machine env <name>)) in your Bash prompt as well as tab completion for most Docker Machine commands and machines.
Ready? Let’s get started!
Adding Git Awareness to your Bash Prompt
To add some Continue reading
California Nurds by Katy Sperry
California Nurds
I know a place
Where the tech is truly awesome
Smart network folks; all clustered
inside CA’s borders
Cablin’ guys and gals
Running fibers to the servers.
We’re all hard core geeks, we are
certified nerf herders.
You may think you are sad,
But nothing comes close
To the silicon coast
Santa Clara’s just mad, you can’t
help your nerd lust
Oooooh Oh Oooooh
California nurds;
we are incredible!
Armed with Flukes,
we’re testing non stop.
Wi Fi smarts
so hot
we’ll melt your antenna
Oooooh Oh Oooooh
California nurds,
we like telemetry;
But we don’t
like SNMP.
West Coast time is lame
so we use UTC
Oooooh Oh Oooooh
We love unicorns, shooting
rainbows from their rear ends.
We’re Software Defined, running
everything in Python.
–John Herbert, with sincere apologies to Katy Perry
If you liked this post, please do click through to the source at California Nurds by Katy Sperry and give me a share/like. Thank you!
Test-Driving OSPF on RouterOS – Interoperability
So I wrote about OSPF on RouterOS in my previous post. It was a nice experiment to learn about routing protocols. I wanted to take it a little further and test Interoperability of RouterOS with other open source solutions. This post is an update from the previous one and I will add OSPF neighbor nodes … Continue reading Test-Driving OSPF on RouterOS – Interoperability
Test-driving OSPF on RouterOS
I came across RouterOS by MikroTik© which provides advances routing protocol support. What is more amazing is they provide a RouterOS in a virtual form-factor called Cloud Hosted Router (CHR) that can be installed on hypervisors like KVM/VirtualBox/VMware. Please look at licensing model at http://wiki.mikrotik.com/wiki/Manual:CHR#CHR_Licensing This is perfect for learning purposes and experimenting at home. … Continue reading Test-driving OSPF on RouterOS
How the media really created Trump
This NYTimes op-ed claims to diagnose the press's failings with regard to Trump, but in its first sentence demonstrates how little press understands the problem. The problem isn't with Trump, but with the press.The reason for Trump is that the press has discarded its principle of "objectivity". Reasonable people disagree. The failing of the press is that they misrepresent one side, the Republicans, as being unreasonable. You see that in the op-ed above, where the very first sentence decries the "Republican Party’s toxic manipulation of racial resentments". In fact, both parties are equally reasonable, or unreasonable as the case may be, with regards to race.
The article suggests the press should have done more to debunk Trump in the"form of fact checks and robust examination of policy proposals". But the press doesn't do that for Democrats, so why should a Republican candidate they don't like get singled out? No amount of attacking Trump sticks because the press is blatantly unfair.
Hillary clearly is complicit in the "Benghazi" affair, because she led the charge to inject weapons into Libya to take down Ghadaffi, then ignored Chris Steven's efforts to clean up the mess. Hillary's use of her own Continue reading
SDxCentral Weekly News Roundup — March 25, 2016
There were big personnel changes at Cisco and Cumulus.
VRF – Virtual Routing and Forwarding
How does Internet work - We know what is networking
Ever needed one extra router? It’s possible to split the router into more logical routers by using VRF. How? Here’s how! Virtual Routing and Forwarding or VRF allows a router to run more that one routing table simultaneously. When running more routing tables in the same time, they are completely independent. For example, you could use same or overlapping IP addresses in both VRFs and it can be used without conflict. It is possible to use same VRF instance on more routers and connect every instance separately using VRF dedicated router port or only a sub-interface. You can find VRFs to be used