I have successfully installed Debian Linux 12.4.0 on my refurbished HP EliteBook 840 G1 laptop on 21 Dec 2023 Thursday

[Turritopsis Dohrnii Teo En Ming]

Subject: I have successfully installed Debian Linux 12.4.0 on my refurbished HP 
EliteBook 840 G1 laptop on 21 Dec 2023 Thursday

Good day from Singapore,

I have successfully installed Debian Linux 12.4.0 on my refurbished HP 
EliteBook 840 G1 laptop on 21 Dec 2023 Thursday. It was done using Graphical 
Install.

The installation started on 20 Dec 2023 Wednesday at 11.45 PM at night and 
completed successfully on 21 Dec 2023 Thursday at 12.17 AM in the early 
morning. I have taken about 32 minutes to complete the Graphical Installation 
of Debian Linux 12.4.0.

I have taken 43 screenshots using my vivo V25 Pro 5G mobile phone during the 
installation process and will be sharing them on my personal blogs in the 
future.

Thank you for the Debian Linux.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore
Blogs:
https://tdtemcerts.blogspot.com
https://tdtemcerts.wordpress.com
GIMP also stands for Government-Induced Medical Problems.






Sent with Proton Mail secure email.

Re: Could not find interfaces configuration file /etc/network/interfaces in Debian Linux 11 (bullseye)

[Turritopsis Dohrnii Teo En Ming]

On Friday, December 8th, 2023 at 11:23 PM, John Hasler  
wrote:


> Mr. Turritopsis Dohrnii Teo En Ming writes:
> 
> > You managed to install OpenWRT on an Ubiquiti router?
> 
> 
> Yes. It was quite straightforward. Instructions on the OpenWRT site.
> --
> John Hasler
> j...@sugarbit.com
> Elmwood, WI USA

I have seen the web UI of OpenWRT. Quite impressive.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

Re: Could not find interfaces configuration file /etc/network/interfaces in Debian Linux 11 (bullseye)

[Turritopsis Dohrnii Teo En Ming]

On Friday, December 8th, 2023 at 11:23 PM, John Hasler  
wrote:


> Mr. Turritopsis Dohrnii Teo En Ming writes:
> 
> > You managed to install OpenWRT on an Ubiquiti router?
> 
> 
> Yes. It was quite straightforward. Instructions on the OpenWRT site.
> --
> John Hasler
> j...@sugarbit.com
> Elmwood, WI USA

It's interesting to know. Thank you.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

Re: Could not find interfaces configuration file /etc/network/interfaces in Debian Linux 11 (bullseye)

[Turritopsis Dohrnii Teo En Ming]

On Friday, December 8th, 2023 at 6:15 AM, John Hasler  wrote:


> Turritopsis Dohrnii Teo En Ming wrote:
> 
> > UDM Pro runs Debian 11 (bullseye)
> 
> 
> I have a Ubiquiti router. Before I installed OpenWRT I explored the OS.
> It uses packages from Bullseye but it is certainly not Debian. You
> couldn't find that file because it isn't there.
> --
> John Hasler
> j...@sugarbit.com
> Elmwood, WI USA

You managed to install OpenWRT on an Ubiquiti router?

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

Re: Could not find interfaces configuration file /etc/network/interfaces in Debian Linux 11 (bullseye)

[Turritopsis Dohrnii Teo En Ming]

On Friday, December 8th, 2023 at 6:08 AM, jeremy ardley 
 wrote:


> On 7/12/23 23:52, Turritopsis Dohrnii Teo En Ming wrote:
> 
> > Subject: Could not find interfaces configuration file 
> > /etc/network/interfaces in Debian Linux 11 (bullseye)
> 
> 
> 
> You should confirm that the device is actually using that file.
> 
> There are at least three different network configuration services in
> Debian - which are not completely mutually exclusive
> 
> what is the result of these commands?
> 
> sudo systemctl status networking
> 
> sudo systemctl status systemd-networkd
> 
> sudo systemctl status NetworkManager

I will run these commands next week.

Thank you for your reply.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

Re: Could not find interfaces configuration file /etc/network/interfaces in Debian Linux 11 (bullseye)

[Turritopsis Dohrnii Teo En Ming]

On Friday, December 8th, 2023 at 6:05 AM, Andy Smith  
wrote:


> Hello,
> 
> On Thu, Dec 07, 2023 at 03:52:20PM +, Turritopsis Dohrnii Teo En Ming 
> wrote:
> 
> > UDM Pro runs Debian 11 (bullseye)
> 
> 
> I don't think it does. Just because you found a file on the
> filesystem that says it does, is as trustworthy as the claims in
> your email that your client is called Henry Kissinger and your
> colleague Edward Snowden.
> 
> It might have started out as Debian 11, but Ubiquiti have made
> unknown changes to it.
> 
> > Linux United-States-Space-Command-Secret-Server 4.19.152-ui-alpine 
> > #4.19.152 SMP Thu Apr 6 21:41:48 CST 2023 aarch64 GNU/Linux
> 
> 
> This is also not a kernel supplied by Debian.
> 
> > But another problem cropped up. Now we could not access the web UI
> > of the UDM Pro.
> 
> 
> […]
> 
> > We could not putty (ssh) into the UDM Pro too.
> > 
> > May I know what the problem could be?
> 
> 
> Given that you're running an operating system supplied by Ubiquiti
> on hardware supplied by Ubiquiti using a web frontend written by
> Ubiquiti on top of a kernel supplied by Ubiquii, I think you need to
> ask Ubiquiti.
> 
> > Please advise.
> 
> 
> I think it's for your vendor to advise.
> 
> Thanks,
> Andy
> 
> PS It would also be advisable to get into the habit of using the
> "ip" suite of tools instead of deprecated ones like "ifconfig"
> and "route". The reason being that tools like ifconfig have not
> kept up changes in the Linux kernel and do not actually display
> all settings of the system any more. Most of the time the old
> ways will still work, but at some point you will encounter a
> situation where ifconfig etc is not showing you all of the
> settings. The diagnostic output can also be confusing to people
> born after the deprecation of ifconfig, for example.
> 
> Your bigger problem though is that Debian didn't supply this
> hardware or software.
> 
> --
> https://bitfolk.com/ -- No-nonsense VPS hosting

Yes, I am going to ask Ubiquiti.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

Re: Could not find interfaces configuration file /etc/network/interfaces in Debian Linux 11 (bullseye)

[Turritopsis Dohrnii Teo En Ming]

On Friday, December 8th, 2023 at 12:19 AM, Dan Purgert  wrote:


> On Dec 07, 2023, to...@tuxteam.de wrote:
> 
> > On Thu, Dec 07, 2023 at 03:52:20PM +, Turritopsis Dohrnii Teo En Ming 
> > wrote:
> > 
> > [...]
> > 
> > > Problem
> > > =
> > > 
> > > On 6 Dec 2023, our client discovered that their UDM Pro could not perform 
> > > firmware updates automatically. Their UDM Pro was running UniFi OS 
> > > version 3.0.20. Client wants to upgrade firmware to latest version 3.1.16 
> > > but couldn't.
> > > 
> > > UDM Pro runs Debian 11 (bullseye)
> > > 
> > 
> > Now I don't understand: is it running UniFi OS or Debian bullseye?
> 
> 
> "UniFi OS" (And EdgeOS on other lineups) is customized Debian Stable of
> some flavor or other.
> 
> > Or is Ubiquiti just cheapskating and sending their customers here
> > to save on customer support?
> 
> 
> I've never seen them direct customers anywhere other than their support
> forums...
> 
> --
> ||O||
> |||O| Github: https://github.com/dpurgert
> |O|O|O| PGP: DDAB 23FB 19FA 7D85 1CC1 E067 6D65 70E5 4CE7 2860

What is EdgeOS?

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

Re: Could not find interfaces configuration file /etc/network/interfaces in Debian Linux 11 (bullseye)

[Turritopsis Dohrnii Teo En Ming]

On Friday, December 8th, 2023 at 12:12 AM, to...@tuxteam.de  
wrote:


> On Thu, Dec 07, 2023 at 03:52:20PM +0000, Turritopsis Dohrnii Teo En Ming 
> wrote:
> 
> [...]
> 
> > Problem
> > =
> > 
> > On 6 Dec 2023, our client discovered that their UDM Pro could not perform 
> > firmware updates automatically. Their UDM Pro was running UniFi OS version 
> > 3.0.20. Client wants to upgrade firmware to latest version 3.1.16 but 
> > couldn't.
> > 
> > UDM Pro runs Debian 11 (bullseye)
> > 
> 
> 
> Now I don't understand: is it running UniFi OS or Debian bullseye?
> 
> Or is Ubiquiti just cheapskating and sending their customers here
> to save on customer support?
> 
> Inquiring minds...
> 
> Cheers
> --
> t

It is an UniFi Dream Machine Pro running Debian 11 bullseye.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

Could not find interfaces configuration file /etc/network/interfaces in Debian Linux 11 (bullseye)

[Turritopsis Dohrnii Teo En Ming]

Subject: Could not find interfaces configuration file /etc/network/interfaces 
in Debian Linux 11 (bullseye)

Good day from Singapore,

Background Information
===

Initially our client has a UniFi Dream Machine Pro (UDM Pro) acting as a 
firewall and router. Port 9 (WAN1) on the UDM Pro was connected to the ONT. 
Port 1 on the UDM Pro was connected to the LAN switch.

Then our client purchased Fortigate 80F firewall from us.

The date of the deployment of the Fortigate 80F firewall is 26 May 2023.

During the setup and installation, I had connected WAN1 on the Fortigate 80F 
firewall to the ONT. Then I need to convert UDM Pro to non-routing mode. RJ45 
cable to Port 9 (WAN1) on the UDM Pro was removed. I proceeded to connect Port 
1 on the UDM Pro to Port 1 on the Fortigate 80F firewall. As the Fortigate 80F 
firewall already had DHCP server configured, I disabled the DHCP server inside 
UDM Pro.

Everything (the network infrastructure) was working well for 6 months 11 days 
until 6 Dec 2023.

Problem
=

On 6 Dec 2023, our client discovered that their UDM Pro could not perform 
firmware updates automatically. Their UDM Pro was running UniFi OS version 
3.0.20. Client wants to upgrade firmware to latest version 3.1.16 but couldn't.

UDM Pro runs Debian 11 (bullseye)


When I putty (SSH) into the UDM Pro machine, I executed the command "cat 
/etc/os-release".

The output is:

PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/;
SUPPORT_URL="https://www.debian.org/support;
BUG_REPORT_URL="https://bugs.debian.org/;

The output of the "uname -a" command is:

Linux United-States-Space-Command-Secret-Server 4.19.152-ui-alpine #4.19.152 
SMP Thu Apr 6 21:41:48 CST 2023 aarch64 GNU/Linux

Troubleshooting


Troubleshooting date is 6 Dec 2023 Wednesday.

When I run "netstat -nr" or "route" commands in UDM Pro, the output shows that 
the default gateway for the 0.0.0.0/0.0.0.0 destination is 192.168.2.2. 
192.168.2.2 is the IP address of the Fortigate 80F firewall. This confirms that 
the gateway was correctly configured on the UDM Pro. The LAN IP address of the 
UDM Pro is 192.168.2.1.

The UDM Pro could reach the gateway 192.168.2.2, in this case the Fortigate 80F 
firewall.

I could ping the gateway 192.168.2.2 from within the UDM Pro CLI.

However, I could not ping 1.2.3.4 or 8.8.8.8.

Even with the gateway correctly configured on the UDM Pro, it could not reach 
the outside world.

When I run the command "ifconfig br0", the broadcast shows up as 0.0.0.0. I 
thought this is wrong. So I ran the following Linux command to correct it.

# ifconfig br0 broadcast 192.168.2.255

But it did not solve the problem.

My colleague Henry Kissinger told me that Port 9 (WAN1) on the UDM Pro must be 
connected (seems like a design flaw). I had wanted to configure the network 
interfaces using the /etc/network/interfaces file. But I could not find it 
anywhere in the terminal in Debian 11. Where can I find this file in Debian 11? 
It is missing!

I had no choice but to use the web UI of the UDM Pro to configure Port 9 
(WAN1). I had asked the client to connect Port 9 (WAN1) on the UDM Pro to Port 
5 (LAN) on the Fortigate firewall. Then I configure Port 9 (WAN1) on the UDM 
Pro with the following network parameters:

Static IPv4 address: 192.168.2.254
Subnet mask: 255.255.255.0
Default Gateway: 192.168.2.2

After configuring Port 9 (WAN1) on the UDM Pro, I could ping 8.8.8.8 from 
inside the UDM Pro already. However, I still could not ping www.google.com. 
That means DNS name resolution has failed. I had to edit /etc/resolv.conf.

# vi /etc/resolv.conf
nameserver 8.8.8.8

Now I could ping www.google.com from inside the UDM Pro. Name resolution is 
working after I have modified the /etc/resolv.conf file by hand.

My client Edward Joseph Snowden then initiated the firmware upgrade using the 
web UI. After the firmware upgrade, the UDM Pro rebooted. Yes, it did reboot. I 
can confirm. The LCD screen on the UDM Pro shows that the firmware has been 
successfully upgraded to version 3.1.16. We have the screenshots to show it.

Everything is working. All the UniFi wireless access points are working. All 
the laptops and mobile phones have internet access. But another problem cropped 
up. Now we could not access the web UI of the UDM Pro.

https://192.168.2.1 of the UDM Pro (LAN IP address) is now not accessible.
https://192.168.2.254 of the UDM Pro (Port 9 (WAN1)) is also not accessible.

We could not putty (ssh) into the UDM Pro too.

May I know what the problem could be? I think there's no choice now but to 
factory reset the UDM Pro and restore configuration from the most recent 
backup. Our client says their most recent backup

Re: I can confirm that Fortigate firewalls are definitely based on Linux

[Turritopsis Dohrnii Teo En Ming]

On Thu, 22 Jun 2023 at 21:22,  wrote:
>
> On Thu, Jun 22, 2023 at 09:17:17PM +0800, Turritopsis Dohrnii Teo En Ming 
> wrote:
> > Subject: I can confirm that Fortigate firewalls are definitely based on 
> > Linux
> >
> > Good day from Singapore,
>
> [...]
>
> > Do you guys know which Linux distro Fortigate firewalls are based on?
> > I would like to know. This will be very interesting.
>
> If I were you, I'd ask Fortigate: if they are using GPL licensed components
> (the Linux kernel would be one), they have to give you a copy of their
> modified sources.
>
> Cheers
> --
> t

I think Fortinet wouldn't say.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

I can confirm that Fortigate firewalls are definitely based on Linux

[Turritopsis Dohrnii Teo En Ming]

Subject: I can confirm that Fortigate firewalls are definitely based on Linux

Good day from Singapore,

These few days, I have discovered that the output of the Fortigate
firewall CLI command "diag hardware sysinfo cpu" is exactly the same
as the output of the command "cat /proc/cpuinfo" in Linux operating
systems. Hence I can confirm that the underlying operating system of
Fortigate firewalls is definitely Linux. But I do not know which Linux
distro Fortigate firewalls are based on.

Fortigate 90E firewall has 2-Core Intel(R) Atom(TM) CPU  C2338  @
1.74GHz processor.

Fortigate 101F firewall has 8-core ARMv8 Processor rev 4 (v8l) 1400
MHz processor.

Fortigate 200F firewall has 8-core Intel(R) Xeon(R) CPU D-1627 @
2.90GHz processor.

I will try to find out what processors my own personal Fortigate 60D
and Fortigate 60E firewalls have later on.

I have configured and deployed 22 Fortigate firewalls for 20
companies/organizations in Singapore so far (as of 22 June 2023
Thursday). On 15 June 2020, I joined my present company (Systems
Integrator/Managed Services) as an IT support engineer. I have been
working at my present company for slightly more than 3 years already.
My 3rd anniversary falls on 15 June 2023.

The following are useful commands for troubleshooting high CPU usage
on Fortigate firewalls (provided by Fortinet technical support).

get system status
get system performance status --run 5 times
diag hardware sysinfo cpu
diag sys top
diag debug crashlog read
execute tac report

Do you guys know which Linux distro Fortigate firewalls are based on?
I would like to know. This will be very interesting.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore
Blogs:
https://tdtemcerts.blogspot.com
https://tdtemcerts.wordpress.com
GIMP also stands for Government-Induced Medical Problems.

I have successfully mounted iSCSI targets from Synology NAS in Debian 11 Linux server for a construction company at Defu Lane 10, Singapore on 10 Feb 2023 Fri

[Turritopsis Dohrnii Teo En Ming]

Subject: I have successfully mounted iSCSI targets from Synology NAS
in Debian 11 Linux server for a construction company at Defu Lane 10,
Singapore on 10 Feb 2023 Fri

Good day from Singapore,

I have successfully mounted iSCSI targets from Synology NAS in Debian
11 Linux server for a construction company at Defu Lane 10, Singapore
on 10 Feb 2023 Friday.

These are the 5 reference guides I have followed. Please use the
following guides in sequence.

[1] How to Configure Static IP on Debian 10

Link: https://www.snel.com/support/how-to-configure-static-ip-on-debian-10/

[2] Debian SourcesList

Link: https://wiki.debian.org/SourcesList

[3] About the /etc/resolv.conf File

Link: 
https://docs.oracle.com/en/operating-systems/oracle-linux/6/admin/about-etc-resolve.html

[4] iSCSI: Introduction and Steps to Configure iSCSI Initiator and Target

Link: 
https://calsoftinc.com/blogs/2017/03/iscsi-introduction-steps-configure-iscsi-initiator-target.html

[5] How Do You Make an iSCSI Target in Synology?

Link: https://linuxhint.com/make-iscsi-target-synology/#b6

Please also note that openssh-server was not installed. To install it, run

# apt install openssh-server

Edit /etc/ssh/sshd_config

and set

PermitRootLogin yes

# systemctl restart sshd

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore
Blogs:
https://tdtemcerts.blogspot.com
https://tdtemcerts.wordpress.com

I have finally figured out how to export Private Key from Fortigate firewall and successfully install Godaddy Wildcard SSL certificate in UniFi Cloud Key Gen 2 Plus Network Controller

[Turritopsis Dohrnii Teo En Ming]

Subject: I have finally figured out how to export Private Key from
Fortigate firewall and successfully install Godaddy Wildcard SSL
certificate in UniFi Cloud Key Gen 2 Plus Network Controller

Good day from Singapore,

Author: Mr. Turritopsis Dohrnii Teo En Ming
Country: Singapore
Date: 26 Oct 2022 Wednesday

I have finally figured out how to export Private Key from Fortigate
firewall and successfully install Godaddy Wildcard SSL certificate in UniFi
Cloud Key Gen 2 Plus Network Controller because I have finally found the
correct reference guides! Please refer to the following list.

Reference Guides
=

Youtube video: Ubiquiti Networks UniFi OS SSL Certificate Installation
Link: https://www.youtube.com/watch?v=WxhY71ebc9o

Guide: Extracting Private Key from FortiGate Firewall
Link:
https://infosecmonkey.com/extracting-private-key-from-fortigate-firewall/

Guide: Extracting private key from FortiGate SSL Certificates
Link:
https://www.linkedin.com/pulse/extracting-private-key-from-fortigate-ssl-kuganesan-srijeyanthan

Guide: How to decrypt an RSA private key and then use it in kyrtool to
merge the SSL certificates.
Link:
https://support.hcltechsw.com/csm?id=kb_article_article=KB0098900

Guide: How to Fix an Encrypted SSL Private Key
Link: https://serverpilot.io/docs/how-to-fix-an-encrypted-ssl-private-key/

DETAILED INSTRUCTIONS FROM TEO EN MING
===

Login to the Fortigate 201F firewall and run the following commands using
CLI.

config vpn certificate local

edit 

show full

You will see something like:

-BEGIN ENCRYPTED PRIVATE KEY-
<---snipped--->
-END ENCRYPTED PRIVATE KEY-

Save the above encrypted private key as encrypted.txt in notepad or
notepad++ in Windows Server.

Then decrypt the encrypted private key using the openssl linux command.

openssl rsa -in encrypted.txt -out plain.txt

Download and install Keystore Explorer in Windows Server.

Launch KeyStore Explorer 5.5.1.

Click Create a new KeyStore.

Click JKS.

Click OK.

Click Import Key Pair.

Click OpenSSL.

Click OK.

Uncheck Encrypted Private Key.

Browse OpenSSL Private Key File. (plain.txt)

Browse Certificate(s) File. (chain.crt generated from Godaddy Wildcard SSL
certificate)

Click Import.

Enter Alias: unifi

Click OK.

Enter New Password: aircontrolenterprise

Confirm New Password: aircontrolenterprise

Click OK.

Click OK.

Click Save.

Enter New Password: aircontrolenterprise

Confirm New Password: aircontrolenterprise

Save KeyStore As: keystore (filename without extension)

Click Save.

Launch WinSCP in Windows Server.

Transfer keystore file to /srv/unifi/data.

Browse to /data/unifi-core/config. Create backup folder.

Move default/original unifi-core.crt and unifi-core.key to above backup
folder.

Upload plain.txt to /data/unifi-core/config as unifi-core.key.

Upload chain.crt (generated from Godaddy Wildcard SSL certificate) to
/data/unifi-core/config as unifi-core.crt

Reboot UniFi Cloud Key Gen 2 Plus network controller. You MUST reboot for
it to take effect!

SUCCESS!

Browse to https://cloudkey.teo-en-ming-corp.com on your favorite web
browser. You should see a padlock icon on the browser address bar. This
means that the Wildcard SSL certificate was installed correctly.

I started doing it at 5.00 PM and completed doing it at 6.00 PM Singapore
time on 26 Oct 2022 Wednesday.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore
Blogs:
https://tdtemcerts.blogspot.com
https://tdtemcerts.wordpress.com

Re: I have achieved PARTIAL SUCCESS in installing Godaddy SSL Certificate in UniFi Cloud Key Gen 2 Plus

[Turritopsis Dohrnii Teo En Ming]

On Wed, 26 Oct 2022 at 05:34, Stefan Monnier 
wrote:

> > I always contact the manufacturer of the screws used in the products
> > I buy rather than the company who assembled the product using
> > said screws.
>
> Indeed, Ubiquity uses Debian as part of their devices a bit like other
> companies use screws.  Except AFAIK they don't use Debian as-is, so
> getting good help directly from Debian is yet a bit harder.
>
>
> Stefan
>
>
Noted.

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

Re: I have achieved PARTIAL SUCCESS in installing Godaddy SSL Certificate in UniFi Cloud Key Gen 2 Plus

[Turritopsis Dohrnii Teo En Ming]

On Wed, 26 Oct 2022 at 04:54, chris  wrote:

> I always contact the manufacturer of the screws used in the products I buy
> rather than the company who assembled the product using said screws.
>
> :)
>

Lol I don't understand.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

Re: I have achieved PARTIAL SUCCESS in installing Godaddy SSL Certificate in UniFi Cloud Key Gen 2 Plus

[Turritopsis Dohrnii Teo En Ming]

On Wed, 26 Oct 2022 at 04:31, Kushal Kumaran  wrote:

> On Tue, Oct 25 2022 at 09:56:50 PM, Turritopsis Dohrnii Teo En Ming <
> tdtemc...@gmail.com> wrote:
> > Subject: I have achieved PARTIAL SUCCESS in installing Godaddy SSL
> > Certificate in UniFi Cloud Key Gen 2 Plus
> >
> > Good day from Singapore,
> >
> > I am posting here because UniFi Cloud Key Gen 2 Plus is powered by Debian
> > GNU/Linux 9.
> >
>
> You should contact ubiquiti support, since they're the actual experts on
> the hardware and software they've sold you.
>
> Start here https://help.ui.com/hc/en-us
>
> If you can't find what you need in their documentation and other
> articles there, go to https://account.ui.com/mysupport to speak to
> support personnel.
>
> You'll have much better chances of actually solving problems that way.
> It would require a unifi expert (or possible, advanced unifi users) to
> know how ubiquiti have modified debian for their hardware.  There is a
> non-zero chance such people are present on debian-user, but why not make
> use of the support you've presumably paid for?
>
> > 
>
> --
> regards,
> kushal
>
>
Hi Kushal,

Thank you for your reply.

I have posted my question in Ubiquiti UniFi community forums too.

If need be, I will contact Ubiquiti technical support directly.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

I have achieved PARTIAL SUCCESS in installing Godaddy SSL Certificate in UniFi Cloud Key Gen 2 Plus

[Turritopsis Dohrnii Teo En Ming]

he Godaddy SSL certificate was installed for https://192.168.90.2:8443
instead. We can view the SSL certificate details below.

SSL Certificate details
===

Issued To

Common Name (CN)   cloudkey.teo-en-ming-corp.com

Issued By

Common Name (CN) Go Daddy Secure Certificate Authority - G2
Organization (O) GoDaddy.com, Inc.
Organizational Unit (OU) http://certs.godaddy.com/repository

Validity Period

Issued On Tuesday, October 25, 2022 at 3:12:39 PM
Expires On Wednesday, October 25, 2023 at 3:12:39 PM

As you can see from the above certificate details, the Godaddy SSL
certificate was correctly installed for https://192.168.90.2:8443

However, when we try to access https://cloudkey.teo-en-ming-corp.com:8443,
it says that SSL Protocol is not supported. Something like that. I can't
remember the exact error message.

I guess this happens because there is no UniFi Controller running at HTTPS
port 8443. Only the standalone UniFi Cloud Key UniFi OS is running at HTTPS
port 443.

Also, I guess that the correct/default location for the Java Keystore is
/usr/lib/unifi/data/keystore

It should not be located at /etc/ssl/private/unifi.keystore.jks

Please advise.

Thank you very much.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore
Blogs:
https://tdtemcerts.blogspot.com
https://tdtemcerts.wordpress.com

Re: Wonderful! I discovered that UniFi Cloud Key Gen 2 Plus is powered by Debian Linux 9

[Turritopsis Dohrnii Teo En Ming]

On Fri, 21 Oct 2022 at 22:28, Dan Ritter  wrote:

> Turritopsis Dohrnii Teo En Ming wrote:
> > Subject: Wonderful! I discovered that UniFi Cloud Key Gen 2 Plus is
> powered
> > by Debian Linux 9
> >
> > UniFi OS UCK G2 Plus 2.5.11
>
> ...
>
> > Linux is everywhere! This also shows that Debian Linux is very stable for
> > it to be used in a commercial network device.
>
> This has a bunch of problems.
>
> - Ubiquiti frequently ignores the GPL. They don't make source
> available for their changes.
>
> - They also fail to make build tools available for their
> deployed software. As a user of their products, there are some
> things that you can't rebuild yourself.
>
> - They don't update quickly. The current stable release of
> Debian is Bullseye, version 11. It has been stable since
> mid-August of last year. You don't get the benefit of security
> improvements Debian has made, and you don't get to extend the
> useful lifetime of your machines once Ubiquitu stops supporting
> them.
>
> Overall, Ubiquiti's use of Debian is not to their users'
> benefit, and that's Ubiquiti's fault.
>
> -dsr-
>

Ops. I am not aware.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore

Wonderful! I discovered that UniFi Cloud Key Gen 2 Plus is powered by Debian Linux 9

[Turritopsis Dohrnii Teo En Ming]

Subject: Wonderful! I discovered that UniFi Cloud Key Gen 2 Plus is powered
by Debian Linux 9

Good day from Singapore,

Here are my findings on 21 Oct 2022 Friday.

UniFi OS UCK G2 Plus 2.5.11

login as: root
root@192.168.90.2's password:
Linux Teo-En-Ming-Corporation 3.18.44-ui-qcom #1 SMP Mon Aug 1 14:33:30 CST
2022 aarch64

Firmware version: v2.5.11
.--.
  __  .--() )-.
 |  |  (.__..__)|  |  | __ |  |
 |   ---|  |  |  ||<|  -|  |  | ||
 |__|__||__|||__|  |   ||
(c) 2022 Ubiquiti Inc.|__|

  Welcome to the CloudKey Plus!

* NOTICE **
* By logging in to, accessing, or using any Ubiquiti product, you are *
* signifying that you have read our Terms of Service (ToS) and End User   *
* License Agreement (EULA), understand their terms, and agree to be   *
* fully bound to them. The use of CLI (Command Line Interface) can*
* potentially harm Ubiquiti devices and result in lost access to them and *
* their data. By proceeding, you acknowledge that the use of CLI to   *
* modify device(s) outside of their normal operational scope, or in any   *
* manner inconsistent with the ToS or EULA, will permanently and  *
* irrevocably void any applicable warranty.   *
***

root@Teo-En-Ming-Corporation:~#

UniFi OS UCK G2 Plus 2.5.11

# cat /etc/os-release

PRETTY_NAME="Debian GNU/Linux 9 (stretch)"
NAME="Debian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
VERSION_CODENAME=stretch
ID=debian
HOME_URL="https://www.debian.org/;
SUPPORT_URL="https://www.debian.org/support;
BUG_REPORT_URL="https://bugs.debian.org/;

# uname -a

Linux Teo-En-Ming-Corporation 3.18.44-ui-qcom #1 SMP Mon Aug 1 14:33:30 CST
2022 aarch64 GNU/Linux

Linux is everywhere! This also shows that Debian Linux is very stable for
it to be used in a commercial network device.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore
Blogs:
https://tdtemcerts.blogspot.com
https://tdtemcerts.wordpress.com

International Space Station adopts Debian Linux, drops Windows & Red Hat into airlock

[Turritopsis Dohrnii Teo En Ming]

Subject: International Space Station adopts Debian Linux, drops
Windows & Red Hat into airlock

Good day from Singapore,

Just sharing.

Link to the article:
https://www.computerweekly.com/blog/Open-Source-Insider/International-Space-Station-adopts-Debian-Linux-drops-Windows-Red-Hat-into-airlock

Happy reading!

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Targeted Individual in Singapore
16 Feb 2022 Wednesday Singapore Time

What is the best (and free) Linux softphone?

[Turritopsis Dohrnii Teo En Ming]

Subject: What is the best (and free) Linux softphone?

Good day from Singapore,

I already have an Asterisk-based FreePBX VoIP IP PBX SIP server
virtual appliance (VirtualBox).

I do not want to spend so much money on buying physical IP phones.

Recently, I migrated my Fortigate 60D firewall, Huawei E3276s-920 4G
LTE USB modem, FreePBX virtual appliance (on laptop) and 1 unit of
Cisco 7960 IP phone from my home to the community hostel. I cannot
migrate too many hardware to the community hostel even though I have 4
Cisco 7960 IP phones.

As stated earlier, I do not want to spend so much money on buying
physical IP phones.

I am trying to save as much money as possible as I live in extreme
poverty in Singapore. My proposed solution is to install many Linux
virtual machines on my laptop. Each Linux virtual machine will have a
softphone.

So my ultimate question is: What is the best (and free) Linux
softphone available? Do I have many choices?

I am looking forward to your reply.

Thank you very much.

Mr. Turritopsis Dohrnii Teo En Ming, 43 years as of 5th May 2021, is a
TARGETED INDIVIDUAL living in Singapore. He is an IT Consultant with a
System Integrator (SI)/computer firm in Singapore. He is an IT
enthusiast.




-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link:
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html



Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's
Academic Qualifications as at 14 Feb 2019 and refugee seeking attempts
at the United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan
(5 Aug 2019) and Australia (25 Dec 2019 to 9 Jan 2020):

[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: I discovered a bug in the no-ip dynamic dns free hostname auto renewal/confirmation script written by loblab

[Turritopsis Dohrnii Teo En Ming]

Noted.



On 2020-08-16 20:01, Henning Follmann wrote:
On Sun, Aug 16, 2020 at 05:44:51PM +0800, Turritopsis Dohrnii Teo En 
Ming wrote:
Subject: I discovered a bug in the no-ip dynamic dns free hostname 
auto

renewal/confirmation script written by loblab


[...]
Then I downloaded the no-ip ddns free hostname auto 
renewal/confirmation

script using git clone.

Software: Script to auto renew/confirm noip.com free hosts
Download link: https://github.com/loblab/noip-renew
Programmer: loblab


[...]

You downloaded a program from github. This is not
a debian issue.
Please contact the developer on github.

-H


--
-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: I discovered a bug in the no-ip dynamic dns free hostname auto renewal/confirmation script written by loblab

[Turritopsis Dohrnii Teo En Ming]

Does ddclient support automatic confirmation of noip.com free hostnames?


On 2020-08-16 21:55, Charles Curley wrote:

On Sun, 16 Aug 2020 17:44:51 +0800
Turritopsis Dohrnii Teo En Ming  wrote:


Subject: I discovered a bug in the no-ip dynamic dns free hostname
auto renewal/confirmation script written by loblab


You may be better off using the debian package ddclient. It supports
no-ip.com.


--
-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

I discovered a bug in the no-ip dynamic dns free hostname auto renewal/confirmation script written by loblab

[Turritopsis Dohrnii Teo En Ming]

Subject: I discovered a bug in the no-ip dynamic dns free hostname auto 
renewal/confirmation script written by loblab


Good day from Singapore,

Programming code troubleshooting person: Mr. Turritopsis Dohrnii Teo En 
Ming (Targeted Individual)

Country: Singapore
Date: 15 to 16 August 2020 Singapore Time (Saturday and Sunday)

My IT consulting company in Singapore asked me to install a Linux 
virtual machine so that we can run no-ip dynamic dns free hostname auto 
renewal/confirmation script written by loblab. I am an IT consultant in 
Singapore, 42 years old as of 16 Aug 2020.


I am not a Python or Java programmer or software developer. The last 
time I had formal training in structured C programming (not C++ objected 
oriented programming) was more than 20 years ago at Singapore 
Polytechnic (Diploma in Mechatronics Engineering course year 1995-1998). 
Although I am not a programmer or software developer, I can still more 
or less understand the flow of programming code.


I chose Debian 10.5 64-bit Linux to install as my virtual machine/guest 
operating system because loblab mentioned that his scripts have been 
tested on Debian 9.x/10.x. But first I have to install VMware 
Workstation Pro 15.5.6 in my Ubuntu 18.04.3 LTS Linux desktop operating 
system. The iso file I downloaded is debian-10.5.0-amd64-netinst.iso.


The virtual network adapter in my Debian 10.5 Linux virtual machine was 
configured to use Network Address Translation (NAT). You can verify the 
IP address of your VM with the following Linux commands:


$ ip a

$ ip route

Give your Debian 10.5 Linux VM at least 2 GB of RAM.

After installing Debian 10.5 Linux virtual machine (minimal installation 
with SSH server and standard system utilities), I need to do a few more 
things, as follows.


# apt install sudo

# usermod -aG sudo teo-en-ming

# groups teo-en-ming

So that I can sudo as a regular Linux user.

# apt install git

Then I downloaded the no-ip ddns free hostname auto renewal/confirmation 
script using git clone.


Software: Script to auto renew/confirm noip.com free hosts
Download link: https://github.com/loblab/noip-renew
Programmer: loblab

I believe programmer loblab is based in China.

The version of the scripts I downloaded is 1.1 dated 18 May 2020.

The composition of the software is 58.4% Python programming language, 
36% Linux shell scripts, and 5.6% Dockerfile.


I tried to run setup.sh Linux shell script and choose "Install/Repair 
Script". But I found out that nothing is being installed in 
/usr/local/bin after a few installation attempts.


I thought the scripts/installation were being blocked by AppArmor, so I 
went to disable AppArmor using the following Linux commands.


$ sudo mkdir -p /etc/default/grub.d
$ echo 'GRUB_CMDLINE_LINUX_DEFAULT="$GRUB_CMDLINE_LINUX_DEFAULT 
apparmor=0"' \

  | sudo tee /etc/default/grub.d/apparmor.cfg
$ sudo update-grub
$ sudo reboot

$ aa-enabled
$ sudo aa-status

But AppArmor is NOT the cause of the problem.

I began to examine the Python programming code and Linux shell scripts.

For the setup.sh script, when you choose "Install/Repair Script", it 
will call the installer() function. Inside the installer() function, it 
will call the following functions, in sequence:


config(), install(), deploy()

When the install() function was called, it tried to execute the 
following Linux command:


$SUDO apt -y install chromium-browser # Update Chromium Browser or 
script won't work.


Executing the above Linux command resulted in an ERROR because Debian 
10.5 Linux does not have the chromium-browser software package. Instead 
it has the chromium package.


When the above error is encountered, the installer script ABORTED 
PREMATURELY and could not continue running. The installer script could 
not run to completion. This is the bug.


To fix the bug, I have to COMMENT OUT/DISABLE the following line in 
setup.sh script:


$SUDO apt -y install chromium-browser # Update Chromium Browser or 
script won't work.


And add the following line below the above-mentioned line:

$SUDO apt -y install chromium

It fixed the bug. I ran setup.sh script again, choose "Install/Repair 
Script", and the installer ran to completion. Finally the scripts are 
installed in /usr/local/bin.


Please DO NOT add your no-ip account password to noip-renew.sh script 
manually in plain text because it has to be Base64 encoded/encrypted. If 
you add your no-ip account password directly to noip-renew.sh script, 
you will get an "Incorrect Padding" Python programming base64 error 
code.


You need to supply the no-ip account password when you run the installer 
script. When the installer script calls the deploy() function, it will 
also call the noip() function.


The noip() function is as follows:

function noip() {
echo "Enter your No-IP Account details..."
read -p 'Username: ' uservar
read -sp 'Password: ' passvar

passvar=`echo 

Is it possible to determine the total duration of multiple video files in GNOME Files (formerly Nautilus)?

[Turritopsis Dohrnii Teo En Ming]

Subject: Is it possible to determine the total duration of multiple 
video files in GNOME Files (formerly Nautilus)?


Good evening from Singapore,

Is it possible to determine the total duration of multiple video files 
in GNOME Files (formerly Nautilus)?


In Windows 10, it is possible to select multiple video files, right 
click and determine the total duration in File Explorer.


If GNOME Files is lacking such a feature, can I request for it to be 
added in future releases of GNOME Files?


I am looking forward to hearing from you soon.

Thank you very much.






-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

On 2020-04-22 17:10, Joe wrote:

On Wed, 22 Apr 2020 15:05:48 +0800
Turritopsis Dohrnii Teo En Ming  wrote:



> The original 1988 ARM and many generations since did not have
> floating point hardware. It's only when multiple cores became
> popular that it became worth doing. Floating point hardware was
> always a separate core, (the 80486 was an 80386 plus an 80387 in
> the same package) using microprogramming to provide the functions.
> The RISC ARM doesn't do the CISC/microprogram thing, so a single
> processor would spend the same amount of time carrying out the
> calculations whether they were a formal FP instruction set or not,
> and the whole point of the ARM is that it is smaller and simpler
> than a CISC processor.

A bit difficult for me to understand :)



Not important, just about a bit of history about why ARMs didn't have
floating point hardware until recently.

If it was a new design, all ARMs would be armhf type.


Noted.







-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

On 2020-04-17 15:55, Joe wrote:

On Fri, 17 Apr 2020 13:44:23 +0800
Turritopsis Dohrnii Teo En Ming  wrote:


On 2020-04-16 23:04, deloptes wrote:
> Turritopsis Dohrnii Teo En Ming wrote:
>
>> Isn't it better to install Debian in a virtual machine rather than
>> using
>> debootstrap?
>
> these are apples and oranges and BTW there is no virtual machine
> for RPI
> except qemu
>
> The question was how to install debian on RPI and this is what I
> did. From
> RPI debootstrapped debian armhf and copied the boot directory and
> the kernel from the raspbian installation.
>
> I wanted to test arm64 next but did not find the time yet.
>
> regards

What is the difference between armhf and arm64?





https://stackoverflow.com/questions/37790029/what-is-difference-between-arm64-and-armhf

The original 1988 ARM and many generations since did not have floating
point hardware. It's only when multiple cores became popular that it
became worth doing. Floating point hardware was always a separate core,
(the 80486 was an 80386 plus an 80387 in the same package) using
microprogramming to provide the functions. The RISC ARM doesn't do the
CISC/microprogram thing, so a single processor would spend the same
amount of time carrying out the calculations whether they were a formal
FP instruction set or not, and the whole point of the ARM is that it is
smaller and simpler than a CISC processor.


A bit difficult for me to understand :)







-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

On 2020-04-17 02:43, 0...@caiway.net wrote:

Succeeded,

https://david.wragg.org/blog/2020/01/installing-64-bit-debian-on-rpi.html

Thanks again Jonathan!


Congratulations!








-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

On 2020-04-16 23:04, deloptes wrote:

Turritopsis Dohrnii Teo En Ming wrote:

Isn't it better to install Debian in a virtual machine rather than 
using

debootstrap?


these are apples and oranges and BTW there is no virtual machine for 
RPI

except qemu

The question was how to install debian on RPI and this is what I did. 
From

RPI debootstrapped debian armhf and copied the boot directory and the
kernel from the raspbian installation.

I wanted to test arm64 next but did not find the time yet.

regards


What is the difference between armhf and arm64?







-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

On 2020-04-16 19:45, Nate Bargmann wrote:

* On 2020 14 Apr 03:55 -0500, Turritopsis Dohrnii Teo En Ming wrote:

Good afternoon from Singapore,

Can I install Debian on Raspberry Pi?


To some extent, yes.  There was a thread last month about running 
Debian

on the Pi on the Debian ARM list:

https://lists.debian.org/debian-arm/2020/03/msg0.html

More list info:

https://lists.debian.org/debian-arm/

- Nate


Noted with thanks.








-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

On 2020-04-15 18:53, to...@tuxteam.de wrote:

On Wed, Apr 15, 2020 at 11:52:01AM +0100, Tixy wrote:

On Wed, 2020-04-15 at 16:21 +0800, Turritopsis Dohrnii Teo En Ming
wrote:
> What is debootstrap?

Why don't you put 'debootstrap' into your favourite web search engine?


Heck, there's even a Wikipedia page on that:

  https://en.wikipedia.org/wiki/Debootstrap

cheers
-- t


Isn't it better to install Debian in a virtual machine rather than using 
debootstrap?








-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

On 2020-04-15 18:46, Andrei POPESCU wrote:

On Mi, 15 apr 20, 16:21:19, Turritopsis Dohrnii Teo En Ming wrote:

What is debootstrap?


https://packages.debian.org/buster/debootstrap
https://manpages.debian.org/buster/debootstrap/debootstrap.8.en.html

Such questions are usually quickly answered by your favorite search
engine ;)

Kind regards,
Andrei


OK.







-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

What is debootstrap?

On 2020-04-14 22:39, deloptes wrote:

Turritopsis Dohrnii Teo En Ming wrote:


gmane.linux.debian.user
Good afternoon from Singapore,

Can I install Debian on Raspberry Pi? When I am downloading Debian 
ISOs,

do I choose the arm64 architecture?

I am looking forward to hearing from you soon.

Thank you.


I booted in raspbian and debootstrapped debian armhf.
I did copy the boot and kernel from raspbian and it works fine.

I was going to do the same for amd64, but did not have the time. It 
seems

then you need the kernel8

regards




-BEGIN EMAIL SIGNATURE-

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-END EMAIL SIGNATURE-

Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

I am still not very clear what a docker is. Maybe I will be very sure 
when I have tried it.


On 2020-04-14 22:13, Vincent Lammens wrote:

Op 2020-04-14 om 13:11 schreef Turritopsis Dohrnii Teo En Ming:

I will check out Raspbian. Thank you!

On 2020-04-14 17:52, Rick Thomas wrote:

Pure Debian, as noted, does not have the kernel tweaks to take full
advantage of the R...pi4B hardware.  However, I have found that
Raspbian is "close enough" to pure Debian that I can easily exercise
all by Debian skills on it with almost no surprises.   It's a nice
little box!

Hope that helps!
Rick



Something that does work, is using raspbian, and then using a debian
docker container. Not exactly where docker is made for, but it does 
work

for me.



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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
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[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

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Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

I will check out Raspbian. Thank you!

On 2020-04-14 17:52, Rick Thomas wrote:

Pure Debian, as noted, does not have the kernel tweaks to take full
advantage of the R...pi4B hardware.  However, I have found that
Raspbian is "close enough" to pure Debian that I can easily exercise
all by Debian skills on it with almost no surprises.   It's a nice
little box!

Hope that helps!
Rick


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The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

Noted with thanks.

On 2020-04-14 17:13, Jonathan Dowland wrote:
On Tue, Apr 14, 2020 at 05:03:46PM +0800, Turritopsis Dohrnii Teo En 
Ming wrote:

How about the latest Raspberry Pi 4 Model B 4 GB?


I would refer you to this page to get the latest status:
<https://wiki.debian.org/RaspberryPi>
For the Pi 4, it claims "There is no support for it in the Debian
kernels yet."

According to this blog
<https://david.wragg.org/blog/2020/01/installing-64-bit-debian-on-rpi.html>
It's possible if you use a kernel from outside Debian, provided by the
Raspberry Pi foundation. But I would suggest this was not a
beginner-level project.







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The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
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Link: 
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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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Re: Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

How about the latest Raspberry Pi 4 Model B 4 GB?

On 2020-04-14 16:58, Andrei POPESCU wrote:

On Ma, 14 apr 20, 16:47:43, Turritopsis Dohrnii Teo En Ming wrote:

Good afternoon from Singapore,

Can I install Debian on Raspberry Pi? When I am downloading Debian 
ISOs, do

I choose the arm64 architecture?


Depends on the model.

Kind regards,
Andrei


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The Gospel for all Targeted Individuals (TIs):

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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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Can I install Debian on Raspberry Pi?

[Turritopsis Dohrnii Teo En Ming]

Good afternoon from Singapore,

Can I install Debian on Raspberry Pi? When I am downloading Debian ISOs, 
do I choose the arm64 architecture?


I am looking forward to hearing from you soon.

Thank you.






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The Gospel for all Targeted Individuals (TIs):

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https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html




Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):


[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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Top 7 Programming Languages That Employers Really Want

[Turritopsis Dohrnii Teo En Ming]

Subject: Top 7 Programming Languages That Employers Really Want

Good day from Singapore,

Article: Top 7 Programming Languages That Employers Really Want
Author: Nick Kolakowski
Date Published: 14 October 2019
Link: 
https://insights.dice.com/2019/10/14/7-programming-languages-employers-want/

This is just a quick survey. May I know what programming languages do
you know? I am considering being a programmer or developer.
How long will it take for me to master a programming language like
C++, Java, and Python?

Thank you very much.





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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the
United Nations Refugee Agency Bangkok (21 Mar 2017) and in Taiwan (5
Aug 2019):

[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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What is the percentage of market share for servers based on Debian Linux?

[Turritopsis Dohrnii Teo En Ming]

Good evening from Singapore,

What is the percentage of market share for servers based on Debian Linux?

Looking forward to hearing from you.

Thank you very much.



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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the
United Nations Refugee Agency Bangkok (21 Mar 2017) and in Taiwan (5
Aug 2019):

[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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Debian 10 "buster" released

[Turritopsis Dohrnii Teo En Ming]

Announcement:

https://www.debian.org/News/2019/20190706







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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
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[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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Have you used Duplicati 2.0.4.5 to backup Debian 9.8.0 Server?

[Turritopsis Dohrnii Teo En Ming]

Good morning from Singapore,

Have you used Duplicati 2.0.4.5 to backup Debian 9.8.0 Server?

Is it good?

Thank you for your review.

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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019

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[2] https://tdtemcerts.blogspot.sg/

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Re: Please Recommend Affordable and Reliable Cloud Storage for 50 TB of Data

[Turritopsis Dohrnii Teo En Ming]

Noted with thanks.

On Fri, Feb 15, 2019 at 6:04 PM Adam Weremczuk  wrote:
>
> The upload volume is currently capped at 750GB per day:
>
> https://support.google.com/a/answer/172541?hl=en
>
> So it would take you about 67 days to push to a single account and about
> 14 days if you split the data into 5 even chunks and push simultaneously
> to 5 accounts.
>
> You would need a very fast internet connection to go much faster with
> any provider anyway.
>
>
> On 15/02/19 09:48, Adam Weremczuk wrote:
> > Actually even a cheaper "Business" plan offers unlimited storage for 5
> > or more users.
> >
> > So you might spend as little as $50 per month:
> >
> > https://gsuite.google.com/intl/en_us/pricing.html
> >
> > My links are for UK and US.
> >
> > Edit the URL to browse different regions.
> >
> >
> > On 15/02/19 09:34, Adam Weremczuk wrote:
> >> Hi,
> >>
> >> It could make sense to sign up for Google Enterprise subscription:
> >>
> >> https://gsuite.google.co.uk/intl/en_uk/pricing.html
> >>
> >> 5 users will cost you 5 x £20 = £100 per month and give 5 accounts
> >> with unlimited storage in a trusted and reliable place.
> >>
> >> AFAIK there is upload speed cap in place so it may take you many days
> >> to complete the initial push.
> >>
> >> Moving forward I would recommend rsync or similar for differential
> >> data updates.
> >>
> >> Not sure why you've posted your question to this list though?
> >>
> >> Thanks,
> >> Adam
> >
>

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Link: 
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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
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[2] https://tdtemcerts.blogspot.sg/

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Re: Please Recommend Affordable and Reliable Cloud Storage for 50 TB of Data

[Turritopsis Dohrnii Teo En Ming]

Noted with thanks.

On Fri, Feb 15, 2019 at 5:53 PM Curt  wrote:
>
> On 2019-02-15, Turritopsis Dohrnii Teo En Ming  wrote:
> >
> > Basically personal data. I don't intend to access the data in the
> > Cloud often. Just want to park it permanently in the Cloud. Maybe I
> > can access the Cloud from anywhere in the world?
> >
>
>
> https://en.wikipedia.org/wiki/Amazon_Glacier
>
>
>  Glacier has two costs, one for storage and one for retrieval.  Uploading data
>  to Glacier is free. Storage pricing is simple: it currently costs 0.4 cents 
> per
>  gigabyte per month, which is 82% cheaper than S3 Standard.
>
>  In 2016, AWS revised their retrieval pricing model.[16] The new model bases
>  the retrieval fee on the number of gigabytes retrieved. This can amount to a
>  99% price cut for users who perform only one glacier retrieval in a month. At
>  the same time, AWS introduced new methods of retrieval that take different
>  amounts of time. An expedited retrieval costs one cent per request and three
>  cents per gigabyte, and can retrieve data in one to five minutes. A standard
>  retrieval costs five cents per thousand requests and one cent per gigabyte, 
> and
>  takes three to five hours. A bulk retrieval costs 2.5 cents per thousand
>  requests and 0.25 cents per gigabyte, and takes seven to twelve hours. AWS 
> also
>  introduced provisioned capacity for expedited retrievals, each unit of which
>  costs $100 per month and guarantees at least three expedited retrievals every
>  five minutes, and up to 150 MB/s of retrieval bandwidth. Without provisioned
>  capacity, expedited retrievals are done on a capacity available basis.
>
> Happy storage.
>

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The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
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Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html



Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019

[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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Re: Please Recommend Affordable and Reliable Cloud Storage for 50 TB of Data

[Turritopsis Dohrnii Teo En Ming]

Noted with thanks.


On Fri, Feb 15, 2019 at 5:48 PM Adam Weremczuk  wrote:
>
> Actually even a cheaper "Business" plan offers unlimited storage for 5
> or more users.
>
> So you might spend as little as $50 per month:
>
> https://gsuite.google.com/intl/en_us/pricing.html
>
> My links are for UK and US.
>
> Edit the URL to browse different regions.
>
>
> On 15/02/19 09:34, Adam Weremczuk wrote:
> > Hi,
> >
> > It could make sense to sign up for Google Enterprise subscription:
> >
> > https://gsuite.google.co.uk/intl/en_uk/pricing.html
> >
> > 5 users will cost you 5 x £20 = £100 per month and give 5 accounts
> > with unlimited storage in a trusted and reliable place.
> >
> > AFAIK there is upload speed cap in place so it may take you many days
> > to complete the initial push.
> >
> > Moving forward I would recommend rsync or similar for differential
> > data updates.
> >
> > Not sure why you've posted your question to this list though?
> >
> > Thanks,
> > Adam
>

===BEGIN EMAIL SIGNATURE===

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html



Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019

[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

===END EMAIL SIGNATURE===

Re: Please Recommend Affordable and Reliable Cloud Storage for 50 TB of Data

[Turritopsis Dohrnii Teo En Ming]

Noted with thanks.

On Fri, Feb 15, 2019 at 5:34 PM Adam Weremczuk  wrote:
>
> Hi,
>
> It could make sense to sign up for Google Enterprise subscription:
>
> https://gsuite.google.co.uk/intl/en_uk/pricing.html
>
> 5 users will cost you 5 x £20 = £100 per month and give 5 accounts with
> unlimited storage in a trusted and reliable place.
>
> AFAIK there is upload speed cap in place so it may take you many days to
> complete the initial push.
>
> Moving forward I would recommend rsync or similar for differential data
> updates.
>
> Not sure why you've posted your question to this list though?
>
> Thanks,
> Adam

===BEGIN EMAIL SIGNATURE===

The Gospel for all Targeted Individuals (TIs):

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Link: 
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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019

[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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Re: Please Recommend Affordable and Reliable Cloud Storage for 50 TB of Data

[Turritopsis Dohrnii Teo En Ming]

On Fri, Feb 15, 2019 at 10:10 PM Dan Ritter  wrote:
>
> Turritopsis Dohrnii Teo En Ming wrote:
> > Hi,
> >
> > Could you recommend affordable and reliable cloud storage for 50 TB of data?
> >
> > Here are some important factors to consider:
> >
> > 1. Personal/non-commercial use.
> > 2. Must be affordable, since I am unemployed most of the time and have
> > super low levels of income for the past 12 years since I graduated
> > from the National University of Singapore in 2007.
> > 3. Cloud storage provider must not be a fly-by-night company, that is,
> > it will not suddenly close down the next day.
> >
>
> 50TB is a lot of data. Do you actually have it right now, or are
> you projecting into the future? How are you storing it?

Using external portable USB hard drives.

>
> -dsr-

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Link: 
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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
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[2] https://tdtemcerts.blogspot.sg/

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Re: Please Recommend Affordable and Reliable Cloud Storage for 50 TB of Data

[Turritopsis Dohrnii Teo En Ming]

Hi Georgi,

Thank you for sharing.

I will bookmark the link.


On Fri, Feb 15, 2019 at 5:33 PM Georgi Naplatanov  wrote:
>
> On 2/15/19 8:44 AM, Turritopsis Dohrnii Teo En Ming wrote:
> > Hi,
> >
> > Could you recommend affordable and reliable cloud storage for 50 TB of data?
> >
> > Here are some important factors to consider:
> >
> > 1. Personal/non-commercial use.
> > 2. Must be affordable, since I am unemployed most of the time and have
> > super low levels of income for the past 12 years since I graduated
> > from the National University of Singapore in 2007.
> > 3. Cloud storage provider must not be a fly-by-night company, that is,
> > it will not suddenly close down the next day.
> >
>
> Hi Turritopsis,
>
>
> https://www.hetzner.com has offers for storage up to 10TB for € 39.90
> per month without VAT. Maybe it'll worth to ask them if they can provide
> 50TB for your needs.
>
> https://www.hetzner.com/storage/storage-box
>
> Kind regards
> Georgi
>

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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
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Re: Please Recommend Affordable and Reliable Cloud Storage for 50 TB of Data

[Turritopsis Dohrnii Teo En Ming]

On Fri, Feb 15, 2019 at 5:03 PM Alexander V. Makartsev
 wrote:
>
> On 15.02.2019 11:44, Turritopsis Dohrnii Teo En Ming wrote:
>
> Hi,
>
> Could you recommend affordable and reliable cloud storage for 50 TB of data?
>
> Here are some important factors to consider:
>
> 1. Personal/non-commercial use.
>
> Out of pure interest, what kind of data do plan to store? How often do you 
> plan to access it and from what location?
> 5 GB of data looks enormous to transfer over the Internet on daily basis.

Hi Alexander,

Basically personal data. I don't intend to access the data in the
Cloud often. Just want to park it permanently in the Cloud. Maybe I
can access the Cloud from anywhere in the world?

>
> 2. Must be affordable, since I am unemployed most of the time and have
> super low levels of income for the past 12 years since I graduated
> from the National University of Singapore in 2007.
>
> I don't think there are any kind of storage service available for that kind 
> of storage demand and costs a few tenners.
> 50 TB is no joke and even basic calculation gives values around $1300 per 
> month.

USD$1300 per month is more than half or 50% of the monthly salary of a
typical university graduate in Singapore. So I don't think I will be
able to afford to pay USD$1300 per month just for cloud storage alone.

> I don't know the whole picture of your use case, but I think it would be much 
> cheaper in a long run to self-host it on premises. Even with high 
> availability solution.
>
> 3. Cloud storage provider must not be a fly-by-night company, that is,
> it will not suddenly close down the next day.
>
> Basically, you have to stick with one of major companies, like Google, 
> Amazon, CloudFlare, Microsoft.
> Otherwise, there is no guarantee that your data will vanish one day with the 
> company, but even then, once your data is uploaded into cloud it could become 
> a hostage at any time in the future.

Noted above sentence with thanks.

>
> Please advise.
>
> Thank you.
>
>
>
> --
> With kindest regards, Alexander.
>
> ⢀⣴⠾⠻⢶⣦⠀
> ⣾⠁⢠⠒⠀⣿⡁ Debian - The universal operating system
> ⢿⡄⠘⠷⠚⠋⠀ https://www.debian.org
> ⠈⠳⣄⠀⠀⠀

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Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
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[2] https://tdtemcerts.blogspot.sg/

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Please Recommend Affordable and Reliable Cloud Storage for 50 TB of Data

[Turritopsis Dohrnii Teo En Ming]

Hi,

Could you recommend affordable and reliable cloud storage for 50 TB of data?

Here are some important factors to consider:

1. Personal/non-commercial use.
2. Must be affordable, since I am unemployed most of the time and have
super low levels of income for the past 12 years since I graduated
from the National University of Singapore in 2007.
3. Cloud storage provider must not be a fly-by-night company, that is,
it will not suddenly close down the next day.

Please advise.

Thank you.



===BEGIN EMAIL SIGNATURE===

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html



Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 14 Feb 2019

[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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What are the differences between systemd and non-systemd Linux distros?

[Turritopsis Dohrnii Teo En Ming]

Good afternoon from Singapore,

What are the differences between systemd and non-systemd Linux distros?

Is systemd implemented in all the latest Linux distros?

Please advise. Thank you. 
 
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Are these instructions meant to be executed on Debian 9.5.0?

[Turritopsis Dohrnii Teo En Ming]

Good afternoon from Singapore, I came across this Linux Journal article titled 
"DIY: Build a Custom Minimal Linux Distribution from Source", written by Petros 
Koutoupis. Link: 

 
https://www.linuxjournal.com/content/diy-build-custom-minimal-linux-distribution-source
 Are the instructions in this article meant to be executed with ease on Debian 
9.5.0 or perhaps easier on other Linux distros? Please advise. Thank you.




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2017

[1] https://tdtemcerts.wordpress.com/

[2] http://tdtemcerts.blogspot.sg/

[3] 
https://www.scribd.com/user/270125049/Teo-En-Ming

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Which is the best open source ecommerce platform?

[Turritopsis Dohrnii Teo En Ming]

Good afternoon from Singapore, There are far too many choices when it comes to 
open source ecommerce solutions. Are there any credible rankings of open source 
ecommerce platforms? Which open source ecommerce solution do you think is the 
best and tell me why. Thank you.


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Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 30 Oct 2017

[1] https://tdtemcerts.wordpress.com/

[2] http://tdtemcerts.blogspot.sg/

[3] 
https://www.scribd.com/user/270125049/Teo-En-Ming

===END SIGNATURE===

Which is better? Microsoft Exchange 2016 or Linux-based SMTP Servers?

[Turritopsis Dohrnii Teo En Ming]

Good evening from Singapore,

I am torn between deploying Microsoft Exchange 2016 and Linux-based
SMTP servers like sendmail, postfix, qmail and exim.

Relative ease of installation and configuration is an important
consideration factor.

Microsoft Exchange 2016, Domain Controller, and Active Directory are
relatively easy to install and configure. Linux-based SMTP servers are
extremely difficult to install and configure and of course, extremely
time-consuming.

One of the features of Microsoft Exchange 2016 is that you can create
additional folders on your Inbox in the server (server-side). Can
Linux-based SMTP servers do that?

Does Exchange 2016 offer more user-friendly features or Linux-based
SMTP servers?

Besides the above considerations, how about security? Traditionally,
Linux is far more secure than Windows.

Judging by security, Linux-based SMTP servers ought to have a higher percentage 
of the market share?

Finally, I can only use Windows Server 2016 Standard Evaluation Copy FREE for a 
period of 3 years MAXIMUM. But I can use Linux servers and Mail Transport 
Agents (MTA) FREE perpetually.

Please advise.

Thank you very much.



===BEGIN SIGNATURE===

Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 30 Oct 2017

[1] https://tdtemcerts.wordpress.com/

[2] http://tdtemcerts.blogspot.sg/

[3] 
https://www.scribd.com/user/270125049/Teo-En-Ming

===END SIGNATURE===

What is the universal (world wide) understanding behind degaussing harddisks?

[Turritopsis Dohrnii Teo En Ming]

Good evening from Singapore!

The foremost question which I want to ask is, what is the universal
(world wide) understanding behind degaussing hard drives?

I work for No Secrets Agency (NSA) Pte Ltd (fictitious company name
used). My sales manager Edward Joseph Snowden (fictitious individual
name used) had *promised* our customer Leave Me in the Lurch (S) Pte
Ltd (fictitious company name used) that we would "DEGAUSS" their hard
disks after the PC replacement and data migration exercise for 15
trillion PCs (fictitious number used).

PC = Personal Computer, which includes desktops and laptops

Last Friday, I had already reflected to my sales manager Edward
Snowden that since we are definitely NOT going to wipe our customer's
data by using strong and powerful magnets (physical means), should I
send an email to the IT Administrator of our customer Lady Gaga
(fictitious individual name used) asking her which data sanitization
method (by software means) I should use? My sales manager Edward
Snowden had quickly deflected my concerns (that is, wanting to send an
email to our customer Lady Gaga asking her which data sanitization
method I should use).

I had brought up to the sales manager Edward Snowden a number of data
wiping methods by software means last Friday.

(1) Very very simple 1-pass data wiping, quickest

a. Using "sudo dd if=/dev/zero of=/dev/sda", overwriting harddisks
from beginning to end with zeroes, where /dev/sda refers to the 500 GB
harddisk, not /dev/loop0 and not /dev/sdb which refers to the bootable
live operating system on thumb drive

b. Using "sudo dd if=/dev/urandom of=/dev/sda", overwriting harddisks
from beginning to end with random data, where /dev/sda refers to the
500 GB harddisk, not /dev/loop0 and not /dev/sdb which refers to the
bootable live operating system on thumb drive

Any bootable Live CD/DVD/flash media could do it.

(2) 3-pass U.S. Government/Department of Defense (DoD) standard (DoD 5220.22-M)

Certified commercial software required

(3) 7-pass U.S. Government/Department of Defense (DoD) standard (DoD 5220.22-M)

Certified commercial software required

(4) 35-pass Gutmann method, slowest

Certified commercial software required

All these was last Friday. In the midst of our argument over the
cellular network "just now", my sales manager Edward Snowden tried to
cover up himself by suddenly and unexpectedly making an excuse that he
had told me last Friday I was supposed to wipe user data only, not the
operating system!

If he had wanted me to wipe user data and retain/keep the Windows
operating system, he should simply have told me to Reset the PC (for
Windows 10 only) or use a =secure File Shredder=! For Windows 7, you
can still wipe user data and preserve the operating system by using
the Recovery Partition. On Lenovo desktops, press and hold F11 when
Windows 7 is starting and reset to factory defaults.

I had advised my sales manager Edward Snowden not to use BIG WORDS
like "degaussing the harddisk" and market to the customer using these
big words. Any person who sees the word "degauss" would have
understood it to mean sanitize *ALL* data on the harddisk straight
away and without question.

Please refer to Figure 1. Exhibit A below for the "degaussing"
instructions communicated to me by my sales manager Edward Snowden.
Please click the link below.

URI: https://i.imgur.com/bGOMyVs.png

Please advise.

Thank you very much.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Systems and Network Engineer
Republic of Singapore
2nd April 2018 Monday 9:35 PM Singapore Time GMT+8

[LEARNING OUTCOME] Wi-Fi WPA Hacking Tool is Totally Useless on New Wireless Routers

[Turritopsis Dohrnii Teo En Ming]

Hi,

I am sharing my learning outcomes.

Recently I downloaded Kali Linux 64-bit Version 2018.1 and ran it on
my HP laptop with the integrated Intel Dual Band Wireless-AC 8260
Wireless Network Card.

I wanted to test if I could hack the Wi-Fi WPA password on Ruckus R700
Access Point (AP) and the Aztech DSL8900GR(AC) Wireless Router. So I
started using the Reaver WPA cracking tool.

I understand that the Reaver tool works because there is a bug with
Wi-Fi Protected Setup (WPS).

I have no luck with Reaver on the Ruckus R700 Access Point. After
running Reaver, I found out that WPS is permanently disabled on the
Ruckus R700 AP with no option to turn it back on at all. Hence It is
not possible to hack the WPA password on Ruckus R700 AP.

Understanding that I couldn't do anything further with Ruckus R700 AP,
I proceeded to test Reaver on the Aztech DSL8900GR(AC) wireless
router. In this case, I also found out that WPS is disabled by default
on the Aztech wireless router. Reaver will not be useful at all if WPS
is disabled. But there is an option to enable WPS. So I enabled WPS in
the Aztech wireless router configuration page. And continued testing
with Reaver. But because Aztech wireless router has the rate limiting
security feature, brute force password attacks will be very slow and
probably take forever. The rate limiting security feature on the
Aztech wireless router is meant to slow you down when you are brute
forcing the WPS pin.

So here is my conclusion: Reaver Wi-Fi WPA hacking tool is totally
useless on new wireless routers which have the WPS disabled or have
implemented a fix for the WPS bug. Are there any other WPA cracking
tools which I can use in my educational learning journey? Please
advise.

Mr. Turritopsis Dohrnii Teo En Ming
Singapore
13 March 2018 Tuesday 4:28 PM Singapore Time

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Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 30 Oct 2017

[1] https://tdtemcerts.wordpress.com/

[2] http://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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Is Debian Linux protected against the Meltdown and Spectre security flaws?

[Turritopsis Dohrnii Teo En Ming]

What are the patches that I can download and install to be protected
against the Meltdown and Spectre security vulnerabilities?

===BEGIN SIGNATURE===

Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 30 Oct 2017

[1] https://tdtemcerts.wordpress.com/

[2] http://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

===END SIGNATURE===