Worth Reading: Network Time Protocol
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Video: ONUG Fall 2016 – Part 1- People, Place and Stuff
I did a video blog and published it to Youtube.
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IT Spending Expected To Pick Up In 2017
TEKsystems research finds many IT leaders have a positive outlook on next year with a focus on cloud and security.
snaproute Go BGP Code Dive (14): First Steps in Processing an Update
In the last post on this topic, we found the tail of the update chain. The actual event appears to be processed here—
case BGPEventUpdateMsg:
st.fsm.StartHoldTimer()
bgpMsg := data.(*packet.BGPMessage)
st.fsm.ProcessUpdateMessage(bgpMsg)—which is found around line 734 of fsm.go. The second line of code in this snippet is interesting; it’s a little difficult to understand what it’s actually doing. There are three crucial elements to figuring out what is going on here—
:=, in go, is a way of appending the information in a data structure with more information. So, for instance, if you do something like this—
a-string = "this is a"
a-string := " string"
The result, in a-string, is this is a string. Whatever else this snippet is doing, then, it is taking something out of the data structure, and appending it to the bgpMsg structure. What, precisely, is it taking from the data structure?
The * (asterisk) is a way to reference a pointer within a structure. We’ve not talked about pointers before, so it’s worth spending just a moment with them. The illustration below will help a bit.
Each letter in the string “this is a string” Continue reading
Vodafone Uses Nokia Gear to Test Cloud RAN
Operator says test proved cloud RAN can provide same level of service as traditional networks.
ITC Judge Finds Arista Infringed 2 More Cisco Patents
The companies spar in federal court this week, too.
Docker for Azure Public Beta
Last week Docker for AWS went public beta, and today Docker for Azure reached the same milestone and is ready for public testing. Docker for Azure is a great way for ops to setup and maintain secure and scalable Docker deployments on Azure.
With Docker for Azure, IT ops teams can:
- Deploy a standard Docker platform to ensure teams can seamlessly move apps from developer laptops to Dockerized staging and production environments, without risk of incompatibilities or lock-in.
- Integrate deeply with underlying infrastructure to ensure Docker takes advantage of the host environment’s native capabilities and exposes a familiar interface to administrators.
- Deploy the platform to all the places where you want to run Dockerized apps, simply and efficiently
- Make sure the latest and greatest Docker versions are available for the hardware, OSs, and infrastructure you love, and provide solid upgrade paths from one Docker version to the next.
To try the latest Docker for Azure beta based on the latest Docker Engine betas, click the button below or get more details on the beta site:
Installation takes a few minutes, and will give you a fully functioning swarm, ready to deploy and scale Dockerized apps.
We first unveiled the Docker for Continue reading
Caching Anonymous Page Views
M42 Smart Motorway in the West Midlands, UK; courtesy of Highways England.
The load time of your website not only affects your search engine rankings, but is also correlated to the conversion rate on your site:
- Walmart.com found that for every 1 second of page speed improvement, they experienced a 2% increase in conversion rate.
- Greg Linden's presentation Make Data Useful demonstrated through A/B Testing every 100ms in page load time delays led to a 1% loss of sales for Amazon.
- Kyle Rush from the 2011 Obama for America campaign site showed a 3 second page load speed improvement increased on-site donations by 14% (resulting in over $34 million in donations).
Cloudflare is determined to help website administrators boost the performance of their websites. From today, Cloudflare users on our Business plan will gain a previously Enterprise-only Page Rule option, “Bypass Cache on Cookie”. When used in conjunction with a “Cache Everything” Page Rule, this setting allows for websites to cache the HTML of anonymous page visits without affecting dynamic content.
By caching anonymous page views, Cloudflare is able to help ensure that your origin webserver doesn't waste time constantly regenerating pages which change rarely. This ultimately allows us Continue reading