IPv6 with Android Mail App

We recently noticed a problem with the “Mail” app on Android phones failing to send mail when the phone has an IPv6 connection (either via Wi-Fi or 4G LTE). The problem was traced to the Mail app sending an improperly formatted IPv6 literal in the EHLO command. We’ve updated our outbound mail service to account for this discrepancy.

RFC2821 defines and IPv6 address literals as such:

address-literal = "[" IPv4-address-literal /
                      IPv6-address-literal /
                      General-address-literal "]"

IPv6-address-literal = "IPv6:" IPv6-addr

The Android Mail app is omitting the “IPv6:” string in its literals.

Celebrating Two Years of Uptime

Roller Network is pleased to celebrate our two year mark at our Reno, NV facility on November 22, 2009. Over the last two years our facility has successfully carried out its mission of providing a carrier-class colocation datacenter service to the Northern Nevada region in addition to our worldwide customers who rely on our classic mail services.

Thank you to all of our customers who continue to support us: it is because of your support that we are able to continue to maintain our facility to such standards.

New Dedicated Server SSD Option

We are now offering an industrial-grade 8GB SLC solid state disk drive (internal SATA) option for our dedicated servers.

Due to reliability issues with USB flash and the difficulty in obtaining a suitable long-term supply of them, we are discontinuing the “Internal 4GB USB Flash” options. We apologize for the inconvenience.

Thanksgiving Holiday 2011

Roller Network will be observing the Thanksgiving holiday on November 24th and 25th. During an observed holiday technical support response times may vary depending on the service level. Our next regular business day will be on November 28th.

Q&A: “Do your walls extend past the ceiling?”

One question we’re frequently asked on tours is if our walls extend (or “cut”) past the false ceiling. The answer is yes; all of our walls extend the full height up to the floor of our mezzanine level, and the remaining overhead spaces are too narrow for someone bypass doors by going through the ceiling. At the same time, we do not permit unescorted site access.

Full walls cutting the false ceiling.

Many times businesses will save money on construction costs by only building up to the bottom of a false ceiling, but since our facility is an integral part of our services we always opt to cut the ceiling. We also dress overhead wiring with d-rings even though it’s hidden.

Overhead wire dressing.

Dedicated Server Updates, Price Reductions

We’re making a few updates to the Roller Network dedicated server lineup:

  • The Pentium G6950 with 4GB of RAM ($109) will no longer be available.
  • The Intel Core i3-540 with 8GB of RAM will now be available for $121 (old price $149).
  • Prices on the Xeon X3440, Opteron 6134, and Opteron 6174 options are being lowered by $10 each.
  • The price for the “Add-in PCIe SATA/SAS RAID card w/BBU” is being raised $5 from $34 to $39; unfortunately the original model we were using is no longer readily available.

The Core i3-540 makes a great alternative to the discontinued Pentium G6950. With the Core i3-540 you get Hyper-Threading, more cache (4MB vs. 3MB), a faster clock speed (3.06 GHz vs. 2.8 GHz), and more memory bandwidth (21 GB/s vs. 17 GB/s) for only $12 more than the old G6950 option. On top of that, the new price for the Core i3-540 option is over $300 per year in savings!

Dedicated servers are still a noteworthy option in today’s cloud-buzzword market by offering exclusive use of known computing resources (CPU, RAM, and disk I/O) at a fixed price. Whole-disk encryption can be leveraged with remote KVM to require an encryption pass phrase at boot time for additional security and peace of mind. Multiple dedicated servers can even be used as the building blocks for your own private cloud!

File Into Folders with Hosted Mail Extensions

A question came across the forums last week about address extensions (user+ext@example.com) not working because it wasn’t filing into folders automatically based on the extension part. They do work, but that anticipated behavior is actually a modified one rather than standard, but such a thing can be accomplished with Roller Network hosted mail boxes and a quick Sieve script:

require ["fileinto", "variables"];

if header :matches "Delivered-To" "user+*@example.com" {
  fileinto "${1}";
  stop;
}
else {
  keep;
}

Add this using the managesieve online interface (or managesieve plugin that allows direct entry), replacing “user” and “example.com” with entries appropriate to your hosted mail box. This script will automatically file anything with an extension into a folder of the same name or default to INBOX if there wasn’t an extension.

We have been considering adding this functionality as a per-mailbox account control center option, but a Sieve script will quickly do the job just the same without having to wait for us.

A Year With Utility Power

It dawned on us that it’s been a while since we’ve had a power outage or phase imbalance requiring us to switch to generator power (although we do test every two weeks on load), so we did some digging and discovered that indeed the last time there was a utility power outage was back on October 24, 2010.

Over the last year we’ve only observed minor power flickering during weather and at least one lightening strike that caused a citywide (as observed by all of our remote monitoring points simultaneously) hiccup. All of these events where cleaned up by our online UPS system without going to battery.

Colocation Power Updates

All power to full racks will now be provisioned with 20 amp 208 volt three phase service with a three phase PDU. The pricing and power offered will remain the same, but the upgrade from included power will now be a “soft” (billing) change rather than requiring the outlet and PDU to be physically replaced. We feel that this will cover the vast majority of full rack power needs. Upgrading to 30A three phase will still be a “hard” upgrade requiring a a 30 amp circuit and PDU to be installed.

Half racks will remain a 20 amp single phase service due to space restrictions: the three phase PDUs are full rack height while the single phase models are half-height. This allows us to pre-populate racks with the most common power and PDU configurations rather than waiting until the time of order to see if a customer wanted single phase or three phase power to their rack. The net benefit to our customers is faster half rack and full rack availability.

Roller Network provides PDUs and power cords with our colocation service since we use circuits and voltages that are not commonly offered as standard features for most colocation providers in the United States. We provide the infrastructure, you provide what goes in the rack. Roller Network makes it that simple.

Global Crossing is now Level 3

Roller Network has used Global Crossing as a transit provider for our bandwidth mix over the last year. Earlier this year Global Crossing was purchased by Level 3 and we’ve started to receive notices that as of this month our Global Crossing account will now be a Level 3 account. We don’t expect any changes that will impact us operationally (although we’ll be watching closely), and we will be referring to Level 3 as one of our transit providers from this point forward.