Linux “Dirty Cow” Vulnerability (CVE-2016-5195)

October 21, 2016 10:42 am

A privilege escalation vulnerability being branded as “Dirty Cow” (CVE-2016-5195) was recently discovered and fixed yesterday in the Linux Kernel. It has existed for 11 years, so pretty much every device running Linux is affected (this includes VMs, physical machines, mobile devices, and so on) and, in general, distros from every vendor are affected.

Linode has made available new 4.8.3 based kernels to address the issue – so if you’re running our kernels (as is the default), you should just need to reboot your Linodes to pick up the new kernel.

If you’re running a distribution’s kernel or your own kernel, you’ll need to apply updates on your own.

As always, there are subtleties and potential defenses and configurations which may make this a non-issue for your specific situation, so we’ll leave the assessment up to you – but our general advice is to upgrade your kernels and reboot as soon as possible.

For the curious, here’s the patch from Linus Torvalds.

Fall 2016 Events

September 29, 2016 3:28 pm

Asbury Agile
Asbury Park, NJ | October 7
Asbury Agile 2016We’re off to Asbury Park again for Asbury Agile. Join us October 7 for this informal conference, intended for technology professionals and students. Afterward, enjoy happy hour on us! The event is being held at The Asbury, a new, top-rated hotel bordering Sunset Lake.

MHacks 8
Detroit, MI | October 7-9MHacks 8
With a new venue in Detroit (historic Masonic Temple), Mhacks8 is going to be bigger and better than ever. Coders can stay caffeinated all weekend long at the Linode coffee and espresso station! Want to win a Samsung Galaxy Tablet? Use Linode for your project, and each member of your team could win one.

New Brunswick, NJ | October 22-23HackRU 2016
We’re heading to New Brunswick, NJ, again for HackRU. Stop by our table to get your hands on our new hackathon shirt and other cool swag! Ask us how you can score one of our survival kits. We’ll be there, start to finish, sharing ideas about how Linode can power your next project, and doling out $50 account credit.

Lancaster, PA | November 19CPOSC 2016
Central PA Open-Source Conference is a one-day technical conference with sessions for all levels of expertise. Linode will be at the Ware Center at Millersville University in downtown Lancaster, giving away swag and answering all your cloud-hosting questions. See you on November 9!

Boston, MA | December 7-8
LISA 2016 Beantown, here we come! Linode will be at LISA16 in Boston for the vibrant exchange of core issues intrinsic to both traditional and evolving systems administration. Be sure to stop by booth #120, redeem some account credit and snag some swag.

PayPal Payments

July 26, 2016 11:01 am

paypalWe’re happy to announce our newest feature: Payments via PayPal. You can now add credit to your account by transferring funds from a PayPal account.

While any customer can use PayPal to fund their account, new customers will still need to sign up using a credit card. You can use PayPal from then on.

This is in part because we don’t yet have the ability to automatically transfer funds from PayPal. If you intend on paying only via PayPal, you will need to ensure that you have enough credit on your Linode account to cover your next invoice. Otherwise, our system will attempt to collect any remaining balance from the credit card you have on file.

To start using PayPal just log into your Linode Manager and go to the Account -> Make a Payment tab.


Introducing Fedora 24

June 22, 2016 3:45 pm

Today we are pleased to offer Fedora Server 24 for deployment on your Linode. The Fedora Project aims to provide the latest stable packages and approximately 13 months of support.

What’s New?

Fedora Server 24 installs lighter than previous versions due to the Fedora Project removing some packages they felt were unnecessary for their server build. The Fedora 24 ChangeSet outlines the major library and software updates like GNU Compiler Collection 6, Nodejs 5.10 and Python 3.5.

As always, you can use the stock Linux kernel we provide, or install a kernel of your choice using our kernel installation guide for KVM Linodes. For the full changelogs, see the Fedora 24 release notes.

How do I get Fedora 24?

A fresh disk image of Fedora Server 24 can be deployed directly from the Linode Manager. If you’re using an earlier version of Fedora, you can upgrade to version 24 using the DNF System Upgrade plugin. You’ll find instructions to do this and potential upgrade issues on Fedora’s Wiki.

Linode’s 13th Birthday – Gifts for All!

June 16, 2016 12:28 pm

It was 13 years ago today that Linode opened its doors and earned its first customers. Now, 13 years later, it’s amazing how much we’ve grown. According to a study by CloudHarmony, Linode is the 4th largest cloud provider to the top 10,000 Alexa websites, following only Amazon, Rackspace, and IBM. Not bad. We have helped over half a million customers, launched nearly 12 million Linode servers, and now have more than 100 employees, all while remaining independent and privately owned.

None of this would have been possible without the dedication and engagement of our employees, who care a great deal about you, our customer, and about the work we do. We’ve attracted some of the most passionate, brilliant, and handsome people I’ve ever met (BTW, we’re hiring). So, a big thanks to everyone here at Linode.

We also want to thank you for your business and support all these years. As a token of our gratitude, we’re announcing free RAM upgrades for both new and existing customers. Here’s the breakdown:

Old Plan New Plan Price
Linode 1 GB -> Linode 2 GB $10/mo ($0.015/hr)
Linode 2 GB -> Linode 4 GB $20/mo ($0.03/hr)
Linode 4 GB -> Linode 8 GB $40/mo ($0.06/hr)
Linode 8 GB -> Linode 12 GB $80/mo ($0.12/hr)
Linode 16 GB -> Linode 24 GB $160/mo ($0.24/hr)
Linode 32 GB -> Linode 48 GB $320/mo ($0.48/hr)
Linode 48 GB -> Linode 64 GB $480/mo ($0.72/hr)
Linode 64 GB -> Linode 80 GB $640/mo ($0.96/hr)
Linode 96 GB -> Linode 120 GB $960/mo ($1.44/hr)

View the full plan list

The free upgrade is available immediately. At the top of your Linode’s dashboard you will see the upgrade banner. It should be just the press of a button and a reboot for many of you, however sometimes a migration will be required – which typically just takes a few minutes.

This upgrade is available only for KVM Linodes. Legacy Xen Linodes will have to first upgrade to KVM before being able to take advantage of the RAM upgrade. You can upgrade your Xen Linodes to KVM using the “Upgrade to KVM” link on the lower-right side of your Linode’s dashboard.

Unfortunately, since Tokyo is sold out, the upgrade is not available there. We hope to have our second Tokyo facility online before the end of this year.

In addition to the new facility, our teams are working hard on the new API (in public alpha), the new open source Linode Manager, and the significant improvements to our networking infrastructure including transit, peering, and bandwidth upgrades. We’re also very excited about our future office in Philadelphia – a beautiful neoclassical 110-year-old former bank building right at the heart of N3RD Street. Renovations are underway and we hope to be working out of there in the spring.

We continue to build upon the foundations of a company that is big enough to handle its customers’ needs but small enough to care. We hope we’re accomplishing that. You have our eternal gratitude for your business. Stay tuned for more!


Arch Linux Network Configuration Update

June 13, 2016 5:14 pm

We are happy to announce that we have just pushed a new Arch image, updating it to the 2016.06.01 “release”. This image disables the predictable network interface naming convention using the suggested udev mask, so the default ethernet name is returned to eth0.

If you currently rely on predictable interface naming for any of your Linodes running Arch, make sure to update your configuration scripts before deploying from the newest image. If you want to read more about this configuration or static networking, see the documentation on, or consult our Static IP Configuration guide. Alternately, you can let Network Helper configure your IP addresses statically for you.

Summer 2016 Events

May 4, 2016 2:19 pm

We’re rounding out our robust conference schedule with even more events than usual this summer! Take a look below and meet up with us.

DrupalCon New Orleans
New Orleans, LA | May 9-13Drupalconlogo
We are sponsoring a lounge at DrupalCon New Orleans. Stop by our space to relax and recharge – perks of the Big Easy. We’ll also be hosting a happy hour in our lounge on May 10th @ 3 PM. See y’all in the Crescent City.

Portland, OR | May 28-June 5pycon2016-logo_1x
We’re flying to the West Coast for PyCon this year. We love Portland and can’t wait to see everyone at the conference. Stop by booth #521 to chat with our team and get $50 credit on a new Linode account.

Southeast Linuxfest
Charlotte, NC | June 10-12
SELFlogoSELF is being held in Charlotte again for 2016. We are looking forward to seeing some familiar faces and meeting new ones. We’ll have a table loaded with new swag in the expo hall, and we’ll be at the bottle share. Nothing could be finer than to be in Carolina… in June. See you there.

Santa Clara, CA | June 20-23
We’re heading back to Santa Clara for Velocity 2016! Stop by our booth (#515) Velocitylogoin the expo hall. We’re also sponsoring the evening reception on June 22nd from 8-10 p.m. We look forward to seeing everyone in Cali.

Texas Linuxfest
Austin, TX | July 8-9TXLF_logo
This will be our first year sponsoring Texas Linuxfest. Stop by our booth to get the latest, greatest Linode swag and make sure to attend the Linode after-party (location TBD). See everyone in Austin.

Philadelphia, PA | August 20fossconlogo
We’re thrilled to again be part of FOSSCON – right in our own backyard, Philly. We’ll be hanging out all day talking cloud hosting and all things virtualized that you might be curious about. See you in our backyard this August.



Network Status Updates – April 2016

May 2, 2016 3:09 pm

In his January blog post, Alex Forster articulated that we have a plan in motion to upgrade the network across all of our data centers. We would like to share with everyone what has been done so far, and what still needs doing.

Staffing up

Since December 2015, we’ve added two new members to our Network Operations department with a total of 24 years of experience between them. Our new Network Operations Manager, Dan Spataro, brings with him a wealth of experience in the maintenance of backbone and data center networks. Owen Conway has also come over from LINX, one of the largest peering exchanges in the world. They have been working tirelessly along with our existing Network Operations crew to make substantial improvements to our network infrastructure, and have proven to be invaluable additions to our team.

Infrastructure Improvements

Status: In progress
Expected Completion: Mid May

Phase one of our plan is to install new higher capacity networking hardware in every one of our locations. These new devices will greatly increase our capacity to the internet and allow us to multi-home to many internet peers at once. Our Network Operations team has been rolling out this new hardware as quickly as possible and is currently working on many simultaneous turn-ups with our providers. By mid-May we hope to have these installations complete.

Dark Fiber Turn-ups

Status: In progress
Expected Completion: July

Due to infrastructure variations between geographic locations, we have had to get creative in our mission to turn up large amounts of additional bandwidth capacity at our various data centers in order to reach the tier 1 providers in each region. Our first plan involved the procurement of 200 Gbps of lit services from our data center locations to the well connected carrier hotels. The provider estimated a late June install date for the first location. That timeline was unacceptable to us, so we decided to lease our own dark fiber and light it ourselves. The time to market is much quicker and the potential capacity is much greater. Instead of the fixed 200 Gbps of capacity per DC we can turn up many terabits of capacity per DC on demand. We expect to begin rolling out the optical gear in the next few weeks and hope to have the first locations up in mid May.

Internet Capacity

Status: In progress
Expected Completion: July

Internet capacity is a large part of our DDoS mitigation strategy – the more capacity, the better. We are currently working on turning up terabits of capacity to the Internet and have started to achieve this by peering with hundreds of Internet peers over many high capacity links. We have also reached agreements with three more tier 1 providers to provide us more connectivity to the Internet across all of our data center locations. We will begin installation of the first batch of connectivity from those agreements next week in Frankfurt.

Our entire Network Operations team has been working really hard to bring everyone these upgrades as quickly as possible. Your patience and understanding over the last few months have been greatly appreciated, and we look forward to sharing the benefits of these upgrades with everyone soon.

KVM Update

March 15, 2016 1:54 pm
How’s KVM going?

KVM became the default hypervisor for new Linode customers six months ago, and it’s been going great. Since KVM’s introduction last summer, customers have created over 500,000 KVM Linodes with over 3 million launches. It’s been very stable, it’s been very fast. Our service has improved reliability and uptime because it’s running a simpler stack. Overall the transition to KVM has been a huge success.

Since the launch, we also introduced Glish, the graphical console that allows you to view and interact with your virtual machine’s graphical output. This allows you to run a self-contained graphical environment within your virtual machine. Or, using the full-virtualization capabilities of KVM Linodes, to run alternative operating systems like Plan 9 or even Windows.

To give you an idea of our KVM fleet size: just about 50% of all Linodes are now running on KVM, with many of them being pre-existing Xen Linodes that migrated to KVM.

How do I upgrade a Linode from Xen to KVM?

On a Xen Linode’s dashboard, you will see an “Upgrade to KVM” link on the right sidebar. It’s a one-click migration to upgrade your Linode to KVM from there. Essentially, our KVM upgrade means you get a much faster Linode just by clicking a button.

Please note: Our Tokyo facility is currently sold out and does not offer an upgrade to KVM. We are looking into adding more capacity in Tokyo and will notify those customers once upgrades become available.

KVM will be the only option for new Linodes, starting May 1, 2016

If you are an older customer, new Linodes you create may still be getting placed onto a Xen hypervisor. You can change this default on your Account Settings page in the Linode Manager. However, coming May 1, 2016, the only option will be KVM. In other words, starting on May 1, it will not be possible to create a Xen-based Linode.

What will be the fate of existing Xen Linodes?

Existing Xen-based Linodes will be fine. However, in the near future we will begin to consolidate Xen Linodes onto fewer physical servers, which will mean scheduled migrations with periods of downtime. Don’t worry – if you will be affected, we’ll provide plenty of advance notice when those migrations are planned.

More information:

Linode Spring 2016 Conference Schedule

March 8, 2016 12:57 pm

It’s that time of year again – conference season is kicking off! Check out our schedule below to see where we’ll be through the end of April and make sure to stop by and check us out. We’ll be talking cloud hosting and giving out new swag – you don’t want to miss us!

Wordcamp Atlantawordcampatlanta
Altanta, GA | March 18-20
We’re spending the week down South for Wordcamp Atlanta and are looking forward to meeting all the WordPress enthusiasts who will be in attendance. Stop by our table to pick up swag and stick around for the afterparty to hang out with our team.

Princeton, NJ | April 1-3
We’re road-tripping back up to Mid-Jersey for another edition of HackPrinceton. It seems to only get better every year and our mentors will be available for the entire weekend (seriously, they practically sleep there.) We can’t wait to see what amazing projects students produce this year. We will also be giving out a special prize, so follow us on Twitter to find out what it is!

Philadelphia, PA | April 8
One of the best Drupalcamps around and it happens right in our backyard – how lucky are we? Join us in Philly on April 8th to brag about how you use Drupal on your Linode. Stop by our booth to snag some swag and catch an invite to our impromptu happy hour happening after the event.

Philly Tech Weekptw2016_logo
Philadelphia, PA | April 29-May 6
Thousands of tech enthusiasts flock to the City of Brotherly Love for Philly Tech Week. We are sponsoring Dev Day on May 4th along with the happy hour from 6-8 p.m. Come by and get a drink on Linode! More details here.