A haiku about DNS

last updated in Categories Humour

Here is a haiku (a Japanese poem) about DNS (“domain name system”):

It’s not DNS
There is a no way it’s DNS
It was DNS

Here is a postcard for your sysadmin friend whenever there is a DNS issue:

dns haiku
dns haiku

Touch ID Support for sudo in MacOS Terminal for MacBook Pro

last updated in Categories Link

Well, that was fast. Touch ID is a fingerprint recognition security feature, designed and released by Apple. It is currently available on the iPhone 5s/6/7 and Macbook pro-2016 editions. Many consider it as a huge security win for the MacBook Pro’s. This sounds amazing feature for command line users.

Say hello to sudo-touchid

sudo-touchid is a fork of sudo with Touch ID support on macOS (powered by the LocalAuthentication framework). Once compiled, it will allow you to authenticate sudo commands with Touch ID in the Terminal on supported Macs (such as the late 2016 MacBook Pros). Since Darwin sources for macOS 10.12 are not available yet, this project is based on sudo sources corresponding to OS X 10.11.6 and obtained from opensource.apple.com.

=> Download and usage information.

Interns are working hard to fix computer problems on National Cat Day

last updated in Categories Uncategorized

Here are interns in our office. They are working hard to fix server problems on national cat day ;)

Kittens working on computer
Kittens working on computer

We did receive some additional trouble tickets though. Tom’s TT read as follows,

I haven’t been able to find my mouse since the new intern fixed my computer.

Lmao.

Schrodinger Backups: The condition of any backup is unknown until a restore is attempted

last updated in Categories Humour

A tweet about backups got pretty popular among sysadmin and IT community. The tweet read as follows:

Picture about Schrodinger Backups

The condition of any backup is unknown until a restore is attempted
The condition of any backup is unknown until a restore is attempted

Here is a tweet about Schrodinger Backups

If it is worth having pictures, database, files and more, it is worth having a backup. But, a backup isn’t a backup until you have restored successfully from it.

Dyn a cloud-based DNS service under DDoS attack and took down major sites such as Twitter/Reddit/Spotify/Paypal and others

last updated in Categories Link

A massive DDoS (distributed denial-of-service) attack against a popular cloud-based DNS provider Dyn.COM took down major websites. The DYN.COM confirmed it on twitter:

Following sites are having issues due to DNS problems:

  1. Twitter
  2. SoundCloud
  3. Spotify
  4. Netflix
  5. Reddit
  6. Disqus
  7. PayPal
  8. Basecamp
  9. Business Insider
  10. CNN
  11. Esty
  12. Github
  13. Guardian.co.uk
  14. Imgur
  15. HBO Now
  16. Pinterest
  17. Recode
  18. The Verge
  19. Wired and more

You can verify NS with the following standard Unix command:
$ host -t ns twitter.com

twitter.com name server ns2.p34.dynect.net.
twitter.com name server ns1.p34.dynect.net.
twitter.com name server ns4.p34.dynect.net.
twitter.com name server ns3.p34.dynect.net.

From the official announcement:

This attack is mainly impacting US East and is impacting Managed DNS customers in this region. Our Engineers are continuing to work on mitigating this issue. Services have been restored to normal as of 13:20 UTC on 21/Oct/2016. But, I’m still seeing problems.

This DDoS attack may also be impacting Dyn Managed DNS advanced services with possible delays in monitoring. Our Engineers are continuing to work on mitigating this issue. — Oct 21, 2016 – 16:48 UTC

See the “DDoS Attack Against Dyn Managed DNS” update page for up to date information.

(Image credit)