Welcome to NYC Networkers
a new york city based group for IT professionals
Notes from tonight’s meetup
- Deals to be had from going on www.udemy.com and signing up for their email listing to get promos and deals! (Get courses for as low as 5,10$ as per Mark!)
- Mark mentioned another site to be used for AWS training
- Good videos to watch suggested by the group
- Did an overview of how traffic flows into a VPC > IGW > RT > Network ACL > Security Group > EC2 instance
- Went over Blockchain Developer – what is it? Sounds like a new field but the consensus was its too new to get into, but something to keep an eye on
For those who couldn’t make Wednesday night’s call (or want a review), here is little of what we discussed.
WinSCP is a popular tool used for quick uploading and downloading files between hosts. On a Linux or Mac, scp is a CLI tool already built in and can be invoked by using the scp command. However, unlike Linux and Mac, there is no native CLI for scp on Windows.
This document will provide a summary over an Arista EOS switch and how an administrator can use Virtual Routing and Forwarding (VRFs) to achieve a desired solution. The number of VRFs varies per switch due to the amount of RAM and CPU on a switch. As of this writing, VRF scale are the following per model. Configuration of a VRF is fairly straightforward and all VRFs have their own separate forwarding tables. As with everything in EOS, all VRFs meet at SysDB. As these numbers may change in the future (as new features are added), please refer to the Release Notes and TOI documentation, These can be found on the Software Downloads page here.
One of the many features CloudVision offers along with Configuration management, image management, Telemetry, and Change Management are the Zero Touch Provisioning (ZTP) and Zero Touch Replacement (ZTR) features. Users can either use the preinstalled DHCP server on the CloudVIsion Portal platform or use any other DHCP server found in Linux or Microsoft Windows.
In this article, we will outline the steps required to get DHCP working on both the Linux and Microsoft platform as well as basic steps to provision a new switch, and replacement. All this can be done without the need for the blue console cable!
This article will go over how to install CVX on a vCenter 6 appliance. Starting from vCenter 6, there was a change in the OVFTool built into vCenter that changes the SHA hashing algorithm from 1 to 256. There is also an issue with 6.5 where it is required to go into the BIOS of the CVX vm and change the boot order from HDD to CD.
The vEOS image (whethere as a vEOS-lab, vEOS for vRouter functionality in Amazon Web Services or Microsoft Azure, or vEOS-lab for labbing) contains two files. First, the *.iso file is the Aboot file required as the first bootable device using IDE. Second, the *.vmdk file is used as the actual HDD for the vm, and should be set as secondary IDE.
These steps will outline a few issues we have found in the field when deploying vEOS and the resolutions.