Category Archives: Uncategorized

Corona App of Deutsche Telekom lacks SSL security

Be careful with what kind of app you are installing in these days. Especially Corona apps are supposed to be on the market as soon as possible (like yesterday), but this might come at the cost of reliability and security.

The Corona App of Deutsche Telekom uses insecure SSL encryption to communicate to cloud servers. While the app itself is functioning and useful, personal health data should be handled in a more secure way.

https://www.heise.de/ct/artikel/c-t-deckt-auf-Corona-App-der-Telekom-ist-katastrophal-unsicher-4694222.html?wt_mc=nl.red.security.security-nl.2020-04-02.link.link

Share

Coronavirus: The Age of the Internet

Right now on the Internet you read a lot about staying at home and washing your hands thoroughly to prevent further spread of the virus.

But way more important is what you don't read. I stumbled across the following online news article of the Jerusalem Post. Looks legit to me. Nevertheless I haven't read anything about those Israeli scientists anywhere else.

Neither denying nor confirming news articles like these is probably the worst thing officials in other countries can do. It ultimately leads to disorientation and panic.

Lessons learned: Today we already live in the age of the internet. But while infrastructure and communication services might be functioning pretty good, we still need to learn how to communicate effectively, and distribute the right news and information at the right time.

You better stick to your promises:
Israeli scientists: 'In a few weeks, we will have coronavirus vaccine' (MARCH 15, 2020)

https://www.jpost.com/HEALTH-SCIENCE/Israeli-scientists-In-three-weeks-we-will-have-coronavirus-vaccine-619101?fbclid=IwAR0kzurRC_hrK1AA3BWGZ8G-TYd91YhM7LhbeoYLQUZz7oGqBepgHFk8Yq4

Share

NetworkManager in Ubuntu 19.10 and 20.04 not working

NetworkManager in Ubuntu 19.10 und 20.04 is disabled by default, except for WiFi connections. If you experience any problems with ethernet connections or vlans (including a vlan that might be configured by netplan but doesn't get activated), check out the configuration file 10-globally-managed-devices.conf.

/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf:

[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma

As you can see, all devices are declared unmanaged by default, except for wifi, gsm and cdma devices. Move the file to /etc/NetworkManager/conf.d and change it to:

[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma,except:type:wwan,except:type:ethernet,except:type:vlan

Restart NetworkManager.

sudo systemctl restart network-manager
Share

Free Julian Assange

https://www.change.org/p/free-julian-assange-before-it-s-too-late-stop-usa-extradition

My personal prediction:
It is pretty obvious that the US government has no special interest in an early conviction. They just want to hunt Julian Assange down and torture him for the rest of his life. And there sure are plenty of mentally deranged psychos on the CIA payroll who are more than willing to and take great delight in skillfully exercising this task.

If he is found guilty, a lot of people will accuse the US government of disregarding the freedom of press.

If he is not or only partially found guilty, the US government might be considered weak and send a wrong signal to all future whistleblowers.

So why would the US government be in a hurry for a fair trial that the whole world will be watching closely? Slowly cook him to death surely is the more gruesome alternative.

Share

First Deepfake Face Swap Movie

Georges Melies was one of the first creators of special effects in early silent movies. In "A Trip to the Moon" (1902) he projected his own face on the surface of the moon.

While the image quality is not comparable to modern movies, the effects are still amazing considering they were created almost 120 years ago, without the help of any computers!

Share

Chelsea Manning is being tortured

A top United Nations official just condemned the continuing imprisonment of Chelsea Manning as torture and called for her immediate release.

https://www.theguardian.com/us-news/2019/dec/31/chelsea-manning-us-torture-un-official-wikileaks?link_id=3&can_id=9789abc639a66414f4adc2d0eb5989b5&source=email-chelsea-manning-is-being-tortured-2&email_referrer=email_694687&email_subject=chelsea-manning-is-being-tortured

Sign the petition: tell the government to stop torturing Chelsea Manning and set her free.

Chelsea Manning already gave an extensive statement in her 2013 trial and was sentenced to 35 years in prison. After 7 years in prison and 2 suicide attempts she was released in 2017 being commuted by President Obama himself ("Justice has been served."). This case is history.

Share

Criswell Predicts ... IT in 2020

It Predictions

As new year is approaching, there are - inevitably as every year - predictions about what's coming up in IT in the next year.

Unfortunately everything I have read so far is bleeding obvious: Moving to the cloud, AI will be used everywhere, and Python is becoming the most dominant programming language. Without merely continuing the trends from 2019, here are my wild predictions for 2020:

  • With yet another devastating side channel security breach in Intel and AMD processors, all major cloud providers are moving their server hardware to ARM processors.
  • An unnamed whistle blower reveals that the NSA is using quantum computers and AI to profile every single citizen in the world in real-time. Data is retrieved from decrypted TLS connections by quantum computers, and numerous microsatellites orbiting the earth.
  • Chinese smartphones running their own Chinese Open Source operating system are becoming the defacto standard for secure and affordable mobile devices.
  • Large companies like Apple, Google and Microsoft are launching their own space missions to mine natural resources on moon and mars.
  • Large companies like Apple, Google and Facebook begin to span their own microsatellite networks to provide mobile phone and internet services around the globe. National telecommunication companies become obsolete.
  • Deep fake videos are banned by all major industrial countries around the globe. Social media platforms are legally obliged to detect and delete deep fake videos.
  • In a rather controversial press conference Microsoft announces it will discontinue Outlook as an installable email program and urges Windows users to migrate to the corresponding cloud service Office365. Users will have to pay a monthly fee for using Outlook email services. Alternatively Microsoft recommends Mozilla's Thunderbird as an installable email client on local Windows computers.

Share

Chelsea Resists

Chelsea Manning already gave an extensive statement in her 2013 trial and was sentenced to 35 years in prison. After 7 years in prison and 2 suicide attempts she was released in 2017 being commuted by President Obama himself ("Justice has been served."). This case is history.

It is very obvious that she will not testify again. Leave that kid alone.

Chelsea manning just spent another birthday behind bars. Enough is enough. Sign this petition to tell the judge to release her right now.

Share

Seagate 3,5" disk drives

You clearly see that SAS is only used for the highest performance requirements. All other fields of operation are taken over by SATA, which is equal in reliability and enterprise features. If you don't need that extra bit of performance, you should consider using SATA drives especially for NAS or cloud storage. SAS drives offer less capacity and are much more expensive (TCO, not counting IOPS).

If you are interested in SSDs, consider the following:
- Compare DWPD (Drive Writes Per Day) to warranty period
- Compare TBW (Terra Bytes Written) to drive size
- Match your workload to endurance option, there are huge price differences

Desktop
http://www.seagate.com/www-content/datasheets/pdfs/desktop-hdd-8tbDS1770-7-1511US-en_US.pdf
up to 8 TB
16-256 MB cache
144-220 MB/s
300,000 load cycles
4.0-7.2 W power in idle mode
2 years warranty

Desktop SSHD
http://www.seagate.com/www-content/product-content/barracuda-fam/desktop-sshd/en-us/docs/desktop-sshd-data-sheet-ds1788-2-1308us.pdf
up to 4 TB
64 MB cache
180-210 MB/s
300,000 load cycles
ca. 6.2 W power in idle mode
3 years warranty

NAS
http://www.seagate.com/www-content/datasheets/pdfs/nas-hddDS1789-5A-1511US-en_US.pdf
up to 6 TB
64-128 MB cache
180-216 MB/s
1,000,000 hours MTBF
2.5-7.2 W power in idle mode
3 years warranty

Enterprise NAS
http://www.seagate.com/www-content/product-content/enterprise-hdd-fam/enterprisenas-hdd/_shared/docs/ent-nas-hdd-ds1841-3-1507us.pdf
up to 8 TB
7200 RPM
128-256 MB cache
216-230 MB/s
1,200,000 hours MTBF
4.5-6.9 W power in idle mode
5 years warranty

Archive
http://www.seagate.com/www-content/product-content/hdd-fam/seagate-archive-hdd/en-us/docs/archive-hdd-ds1834-4-1412us.pdf
up to 8 TB
128 MB cache
180-190 MB/s
300,000 load cycles
800,000 hours MTBF
3.5-5 W power in idle mode
3 years warranty

Terascale (scale-out storage)
http://www.seagate.com/www-content/product-content/constellation-fam/constellation-cs/en-us/docs/terascale-hdd-data-sheet-ds1793-1-1306us.pdf
4 TB
64 MB cache
140-170 MB/s
300,000 load cycles
800,000 hours MTBF
4,59 W power in idle mode
3 years warranty

Kinetic (ethernet interface, object data storage API)
http://www.seagate.com/www-content/product-content/hdd-fam/kinetic-hdd/_shared/docs/kinetic-ds1835-2-1503us.pdf
4 TB
64 MB cache
60 MB/s
800,000 hours MTBF
300,000 load cycles
3 years warranty

Enterprise Capacity (SAS + SATA)
http://www.seagate.com/www-content/product-content/enterprise-hdd-fam/enterprise-capacity-3-5-hdd/constellation-es-4/en-us/docs/ent-capacity-3-5-hdd-8tb-ds1863-1-1508us.pdf
8 TB
7200 RPM
256 MB cache
up to 237 MB/s
2,000,000 hours MTBF
0.44% AFR
9 W power in idle mode
5 years warranty

Enterprise 10K (SAS)
http://www.seagate.com/www-content/product-content/enterprise-performance-savvio-fam/enterprise-performance-10k-hdd/ent-perf-10k-v8/en-us/docs/ent-performance-10k-hdd-ds1785-4c-1505us.pdf
up to 1.8 TB
10,000 RPM
128 MB cache
108-241 MB/s
0.44% AFR
3.88-4.55 W power in idle mode
5 years warranty

Enterprise 15K (SAS)
http://www.seagate.com/www-content/product-content/enterprise-performance-savvio-fam/enterprise-performance-15k-hdd/ent-perf-15k-5/en-us/docs/enterprise-performance-15k-hdd-ds1797-5c-1504us.pdf
up to 600 GB
15,000 RPM
128 MB cache
160-250 MB/s
0.44% AFR
4.8-5.3 W power in idle mode
5 years warranty

Share

Open Source Press is closing

Open Source Press is closing down by the end of the year. So this is your last chance to buy some of their books or ebooks from their website. You will get them from Amazon or buecher.de for a while longer, but eventually they will run out of stock too.

I own 13 of their printed books, and they are all of good quality. They offer ebooks too. Some (e)books are in English, but most are German.

Merry christmas and a happy new year.

 

Share