INDUSTRY INSIGHTS YOUR PEERS ARE READING
With Windows Azure, you can easily deploy and run Windows Server and Linux virtual machines on your own virtual network in the cloud. In this step-by-step guide, you will learn how to deploy and support a common two-tier web application architecture using Windows Server 2012 web servers and SQL Server 2012 database servers hosted in Windows Azure in a load-balanced configuration. Configure Load Balancing in Windows Azure. Loading. Sign in. IT Pros ROCK! MORE
Scott McCarty explains sVirt and how it’s used to isolate Linux containers. Check out these articles talking about IPVS-based in-cluster load balancing , CoreDNS , dynamic kubelet configuration , and resizing persistent volumes in Kubernetes. Welcome to Technology Short Take 103, where I’m back yet again with a collection of links and articles from around the World Wide Web (Ha! Bet you haven’t seen that term used in a while!) on various technology areas. MORE
NFV is intended to address the problem caused by having to route/direct traffic from various sources through physical appliances designed to provide services like content filtering, security, content delivery/acceleration, and load balancing. Some of these services naturally should run on the top-of-rack (ToR) switch, like load balancing or security services. ONS is object-oriented and compiles on every major operating system (Linux and OS X specifically called out). MORE
These articles are a bit long in the tooth, but CSS Corp has a useful series of articles on bundling various Linux distributions for use with OpenStack: bundling CentOS , bundling CentOS with VNC , bundling Debian , and bundling OpenSUSE. I enjoyed this article by Josh Townsend on using SUSE Studio and HAProxy to create a (free) open source load balancing solution for VMware View. Welcome to Technology Short Take #27! MORE
Vincent Bernat has a really in-depth article on IPv4 route lookup on Linux (and one on IPv6 route lookup as well). Andrew Montalenti discusses the state of Linux on the desktop by examining his own journey with various Lenovo-branded laptops. John Kozej walks through how to configure vCenter HA using the NSX load balancer. Welcome to Technology Short Take #87! I have a mix of newer and older items for you this time around. MORE
OS X provides an SSH agent by default, but on Linux systems you will probably have to manually run an SSH agent and add the appropriate SSH key: eval `ssh-agent -s` ssh-add ~/.ssh/keyfile.pem. Once the SSH agent is running and the appropriate key is loaded (you’d clearly need to make sure the path and filename are correct in the command listed above), then the last step is to configure your ~/.ssh/config Linux CLI Docker OSS MORE
If you’d like to play around with Cumulus Linux but don’t have a compatible hardware switch, Cumulus VX is the answer. This article listing 20 Linux server hardening tips contains some basic tips but is nevertheless a very good resource for someone looking for Linux security recommendations. William Lam breaks down the real value of load balancing your PSC in this in-depth article. Welcome to Technology Short Take #58. MORE
Russell Bryant has a couple great articles on OVN— how to test OVN’s “EZ Bake” release with DevStack as well as an article on implementing OpenStack security groups using OVN ACLs (which in turn leverage the integration between Open vSwitch and the Linux kernel’s conntrack module). Linux network namespaces is a topic I’ve covered here before , but it’s always great to have multiple viewpoints and explanations of technologies and concepts to get a complete and comprehensive view. MORE
Several weeks ago we made it simple to yum install Docker on your EC2 Instances running Amazon Linux, and today Elastic Beanstalk introduces the ability to deploy, manage, and scale Docker Containers. MORE
scale your apps using load-based or time-based auto scaling, and maintain the health of your apps by detecting and replacing failed instances. You can deploy your application in the configuration you choose on Amazon Linux and Ubuntu. All Things Distributed. MORE
The current GSA applications look like stovepipes that often implement replicated services using different technologies and solutions (different RDMS solutions, different load balancers, duplicate identity/access management solutions). As the panel wraps up, Johnston keeps Russinovich on stage, and transitions into a discussion about the use of both Linux and Windows for Docker containers. This is a liveblog from the day 2 general session at DockerCon 2015. MORE
AWS Elastic Beanstalk automatically creates the AWS resources and application stack needed to run the application, freeing developers from worrying about server capacity, load balancing, scaling their application, and version control. The public beta release of AWS Elastic Beanstalk supports a container for Java developers using the familiar Linux / Apache Tomcat application stack. All Things Distributed. MORE
Here’s a handy list of deprecated Linux network commands and their replacements. Konstantin Ryabitsev has a series going on securing a SysAdmin Linux workstation. Part 1 covers how to choose a Linux distribution, and part 2 discusses some security tips for installing Linux on your SysAdmin workstation. Here’s a Windows-centric walkthrough to using Nginx to load balance across a Docker Swarm cluster. Welcome to Technology Short Take #81! MORE
The rise of the disaggregated network operating system (NOS) marches on: this time, it’s Big Switch Networks announcing expanded hardware support in Open Network Linux (ONL) , upon which its own NOS is based. The Pivotal Engineering blog has an article that shows how to use BOSH with the vSphere CPI to automate adding servers to an NSX load balancing pool. I use OTR with Adium on OS X, and OTR with Pidgin on my Fedora Linux laptop.). MORE
Graf starts by talking about how BPF (specifically, extended BPF or eBPF) can be used to rethink how the Linux kernel handles network traffic. BPF can reject unauthorized connections before the Linux kernel even starts building TCP packets and moving them among various components within the kernel. Shifting focus slightly, Graf moves on to discuss XDP/BPF and the “software load balancer of the future.” Networking Docker DockerCon2017 Cilium Linux MORE
Only a true geek would be interested in this, but here’s some information on running OpenBSD in KVM on Linux. Given my past interest in OpenBSD and my present interest in KVM on Linux, this might be something I’ll be trying myself soon. In any case, this article by Frank Denneman on Storage DRS load balancing frequency might be useful to you. Networking Security Storage Virtualization Automation KVM Linux OpenStack OSS OVS vCloud VMware MORE
Each cloud computing provider has “opinionated” ways of handling things such as load balancing, elastic scaling, service discovery, data access, and security to name just a few. Docker is the next leap past virtualization, employing self-contained Linux kernels that can be shared across components, sparing the Linux host and making better use of client IT resources — which drives cost effectiveness. MORE
The end goal of this effort is to provide accelerated "push-button" delivery of highly available, load-balanced cloud applications. for Windows Server 2012 R2, and has since been extended to support Linux as well. MORE
Romain Decker has an “under the hood” look at the VMware NSX load balancer. This graphical summary of the AWS Application Load Balancer (ALB) is pretty handy. Brendan Gregg has a pretty detailed write-up on migrating from Solaris to Linux (pertinent given the recent layoff of the majority of the Solaris developers). Welcome to Technology Short Take #88! MORE
You can save money if you consolidate your Windows & Linux workloads to fewer servers. The Second are is the higher level layers such as load balancing. Speaker: Martin Casado (VMware Networking CTO). MORE
It now allows a VM running Windows or Linux to have multiple (public and private) IP addresses assigned to the NICs attached to it. Hello Folks, I’m currently working with a customer who’s migrating some workloads to Azure. MORE
Workloads are scheduled across these server/linecards using Valiant Load Balancing (VLB). Of course, there are issues with packet-level load balancing and flow-level load balancing, so tradeoffs must be made one way or another. Testing latency and jitter using a Spirent shows that an SRF compares very favorably with an edge router, but not so well against a core router (even though everything on the SRF is software-based running on Linux). MORE
The “gotcha” is that these software stacks haven’t been written yet, so the idea of repurposing hardware from switch to firewall to load balancer is still a bit of a unicorn. First, here’s a workaround to the fact that vCA doesn’t (yet) do cloud-init, which makes injecting SSH keys into Linux instances a bit difficult. Welcome to Technology Short Take #48, another installation in my irregularly-published series that collects links, articles, and thoughts from around the web. MORE
There's lots of tools that can be leveraged for automating Linux workloads on Microsoft Azure , including Azure Automation , PowerShell DSC for Linux , VM Agent Custom Scripts , Cloud-Init , XPlat CLI for Azure , Vagrant , Docker and third-party tools such as Chef and Puppet. MORE
as of this article’s publication date, to perform end-to-end provisioning of a common IaaS VM scenario: load-balanced web applications. MORE
Golub gives a “shout out” to the technologies underpinning modern Linux containers (namespaces, cgroups, etc., Built-in routing mesh: Swarm-wide overlay networking offering container-native load balancing (using IPVS), DNS-based service discovery with no separate cluster to setup or manage and interoperability with existing load balancers. Docker OSS Linux MORE
IT Pros Rock!
DECEMBER 1, 2014
There's lots of tools that can be leveraged for automating Linux workloads on Microsoft Azure , including Azure Automation , PowerShell DSC for Linux , VM Agent Custom Scripts , Cloud-Init , XPlat CLI for Azure , Vagrant , Docker and third-party tools such as Chef and Puppet.
IT Pros Rock!
JULY 7, 2015
as of this article’s publication date, to perform end-to-end provisioning of a common IaaS VM scenario: load-balanced web applications.
Scott Lowe
APRIL 17, 2017
Graf starts by talking about how BPF (specifically, extended BPF or eBPF) can be used to rethink how the Linux kernel handles network traffic. BPF can reject unauthorized connections before the Linux kernel even starts building TCP packets and moving them among various components within the kernel. Shifting focus slightly, Graf moves on to discuss XDP/BPF and the “software load balancer of the future.” Networking Docker DockerCon2017 Cilium Linux
IT Pros Rock!
OCTOBER 30, 2014
The end goal of this effort is to provide accelerated "push-button" delivery of highly available, load-balanced cloud applications. for Windows Server 2012 R2, and has since been extended to support Linux as well.
Virtualized Greek
AUGUST 27, 2013
You can save money if you consolidate your Windows & Linux workloads to fewer servers. The Second are is the higher level layers such as load balancing. Speaker: Martin Casado (VMware Networking CTO).
Scott Lowe
APRIL 6, 2017
Here’s a handy list of deprecated Linux network commands and their replacements. Konstantin Ryabitsev has a series going on securing a SysAdmin Linux workstation. Part 1 covers how to choose a Linux distribution, and part 2 discusses some security tips for installing Linux on your SysAdmin workstation. Here’s a Windows-centric walkthrough to using Nginx to load balance across a Docker Swarm cluster. Welcome to Technology Short Take #81!
Scott Lowe
FEBRUARY 16, 2017
The rise of the disaggregated network operating system (NOS) marches on: this time, it’s Big Switch Networks announcing expanded hardware support in Open Network Linux (ONL) , upon which its own NOS is based. The Pivotal Engineering blog has an article that shows how to use BOSH with the vSphere CPI to automate adding servers to an NSX load balancing pool. I use OTR with Adium on OS X, and OTR with Pidgin on my Fedora Linux laptop.).
All Things Distributed
APRIL 23, 2014
Several weeks ago we made it simple to yum install Docker on your EC2 Instances running Amazon Linux, and today Elastic Beanstalk introduces the ability to deploy, manage, and scale Docker Containers.
CTOvision
DECEMBER 11, 2015
Each cloud computing provider has “opinionated” ways of handling things such as load balancing, elastic scaling, service discovery, data access, and security to name just a few. Docker is the next leap past virtualization, employing self-contained Linux kernels that can be shared across components, sparing the Linux host and making better use of client IT resources — which drives cost effectiveness.
Scott Lowe
DECEMBER 6, 2012
These articles are a bit long in the tooth, but CSS Corp has a useful series of articles on bundling various Linux distributions for use with OpenStack: bundling CentOS , bundling CentOS with VNC , bundling Debian , and bundling OpenSUSE. I enjoyed this article by Josh Townsend on using SUSE Studio and HAProxy to create a (free) open source load balancing solution for VMware View. Welcome to Technology Short Take #27!
Scott Lowe
OCTOBER 5, 2012
Only a true geek would be interested in this, but here’s some information on running OpenBSD in KVM on Linux. Given my past interest in OpenBSD and my present interest in KVM on Linux, this might be something I’ll be trying myself soon. In any case, this article by Frank Denneman on Storage DRS load balancing frequency might be useful to you. Networking Security Storage Virtualization Automation KVM Linux OpenStack OSS OVS vCloud VMware
CanITPro
MARCH 14, 2017
It now allows a VM running Windows or Linux to have multiple (public and private) IP addresses assigned to the NICs attached to it. Hello Folks, I’m currently working with a customer who’s migrating some workloads to Azure.
IT Pros Rock!
DECEMBER 18, 2012
With Windows Azure, you can easily deploy and run Windows Server and Linux virtual machines on your own virtual network in the cloud. In this step-by-step guide, you will learn how to deploy and support a common two-tier web application architecture using Windows Server 2012 web servers and SQL Server 2012 database servers hosted in Windows Azure in a load-balanced configuration. Configure Load Balancing in Windows Azure. Loading. Sign in. IT Pros ROCK!
Scott Lowe
AUGUST 20, 2014
OS X provides an SSH agent by default, but on Linux systems you will probably have to manually run an SSH agent and add the appropriate SSH key: eval `ssh-agent -s` ssh-add ~/.ssh/keyfile.pem. Once the SSH agent is running and the appropriate key is loaded (you’d clearly need to make sure the path and filename are correct in the command listed above), then the last step is to configure your ~/.ssh/config Linux CLI Docker OSS
Scott Lowe
OCTOBER 14, 2017
Romain Decker has an “under the hood” look at the VMware NSX load balancer. This graphical summary of the AWS Application Load Balancer (ALB) is pretty handy. Brendan Gregg has a pretty detailed write-up on migrating from Solaris to Linux (pertinent given the recent layoff of the majority of the Solaris developers). Welcome to Technology Short Take #88!
Scott Lowe
SEPTEMBER 11, 2014
Workloads are scheduled across these server/linecards using Valiant Load Balancing (VLB). Of course, there are issues with packet-level load balancing and flow-level load balancing, so tradeoffs must be made one way or another. Testing latency and jitter using a Spirent shows that an SRF compares very favorably with an edge router, but not so well against a core router (even though everything on the SRF is software-based running on Linux).
All Things Distributed
JANUARY 19, 2011
AWS Elastic Beanstalk automatically creates the AWS resources and application stack needed to run the application, freeing developers from worrying about server capacity, load balancing, scaling their application, and version control. The public beta release of AWS Elastic Beanstalk supports a container for Java developers using the familiar Linux / Apache Tomcat application stack. All Things Distributed.
Scott Lowe
AUGUST 17, 2018
Scott McCarty explains sVirt and how it’s used to isolate Linux containers. Check out these articles talking about IPVS-based in-cluster load balancing , CoreDNS , dynamic kubelet configuration , and resizing persistent volumes in Kubernetes. Welcome to Technology Short Take 103, where I’m back yet again with a collection of links and articles from around the World Wide Web (Ha! Bet you haven’t seen that term used in a while!) on various technology areas.
Scott Lowe
SEPTEMBER 22, 2017
Vincent Bernat has a really in-depth article on IPv4 route lookup on Linux (and one on IPv6 route lookup as well). Andrew Montalenti discusses the state of Linux on the desktop by examining his own journey with various Lenovo-branded laptops. John Kozej walks through how to configure vCenter HA using the NSX load balancer. Welcome to Technology Short Take #87! I have a mix of newer and older items for you this time around.
All Things Distributed
FEBRUARY 18, 2013
scale your apps using load-based or time-based auto scaling, and maintain the health of your apps by detecting and replacing failed instances. You can deploy your application in the configuration you choose on Amazon Linux and Ubuntu. All Things Distributed.
Scott Lowe
SEPTEMBER 12, 2013
NFV is intended to address the problem caused by having to route/direct traffic from various sources through physical appliances designed to provide services like content filtering, security, content delivery/acceleration, and load balancing. Some of these services naturally should run on the top-of-rack (ToR) switch, like load balancing or security services. ONS is object-oriented and compiles on every major operating system (Linux and OS X specifically called out).
Scott Lowe
NOVEMBER 16, 2015
Russell Bryant has a couple great articles on OVN— how to test OVN’s “EZ Bake” release with DevStack as well as an article on implementing OpenStack security groups using OVN ACLs (which in turn leverage the integration between Open vSwitch and the Linux kernel’s conntrack module). Linux network namespaces is a topic I’ve covered here before , but it’s always great to have multiple viewpoints and explanations of technologies and concepts to get a complete and comprehensive view.
Scott Lowe
DECEMBER 17, 2015
If you’d like to play around with Cumulus Linux but don’t have a compatible hardware switch, Cumulus VX is the answer. This article listing 20 Linux server hardening tips contains some basic tips but is nevertheless a very good resource for someone looking for Linux security recommendations. William Lam breaks down the real value of load balancing your PSC in this in-depth article. Welcome to Technology Short Take #58.
Scott Lowe
JUNE 23, 2015
The current GSA applications look like stovepipes that often implement replicated services using different technologies and solutions (different RDMS solutions, different load balancers, duplicate identity/access management solutions). As the panel wraps up, Johnston keeps Russinovich on stage, and transitions into a discussion about the use of both Linux and Windows for Docker containers. This is a liveblog from the day 2 general session at DockerCon 2015.
Scott Lowe
FEBRUARY 10, 2015
The “gotcha” is that these software stacks haven’t been written yet, so the idea of repurposing hardware from switch to firewall to load balancer is still a bit of a unicorn. First, here’s a workaround to the fact that vCA doesn’t (yet) do cloud-init, which makes injecting SSH keys into Linux instances a bit difficult. Welcome to Technology Short Take #48, another installation in my irregularly-published series that collects links, articles, and thoughts from around the web.
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