Max Abramowitz - bklyn IT

How to fix "unable to bind to port 53" error

This is an excerpt from https://www.bklynit.net/ubuntu-20-04-lts-docker-pihole/ hopefully the more specific title will help people find this more easily. ProblemWhen trying to run pihole in a container on docker, you get: Error starting userland proxy: listen tcp4 0.0.0.0:53: bind: address already in useCauseAnother

How to Install Docker-Compose

The following command is a single line, "undo" any line wrapping. sudo curl -L "https://github.com/docker/compose/releases/download/1.28.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose And set permissions: sudo chmod +x /usr/local/bin/docker-compose

How to Install Docker

Please note: all the following should be a single line. Any line wrapping should be "undone" before running commands. sudo apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/

HP Microserver Gen 8 / SmartArray P222 / VMWare ESXi 7.0 storage

A few weeks ago I noticed that one of the drives on one of my HP Microserver was in a degraded state. I had a choice: cheap and simple or expensive and complicated. While it made no sense (really) I chose expensive and complicated. Instead of just buying a new

Filelight - Windows Disk Usage Utility

Filelight is a great utility for reporting disk usage on Windows. It is free and available from the Windows Store. https://apps.microsoft.com/store/detail/filelight/9PFXCD722M2C?hl=en-us&gl=US

I just received a phishing email...

...and I thought this would be a good opportunity to remind people how to identify a phishing email. The email was apparently from Zelle, a legitimate company. Zelle is a digital payment network which makes it easy to send and receive money. Zelle integrates with many financial institutions, like Citibank.

Security

5 Cybersecurity Security Fallacies

Keeping your security protocols secret increases your security.There is a belief a belief that any sort of system can be secured so long as the internal mechanisms are kept private. This is called "Security Through Obscurity". Security experts have rejected this view as far back as 1851. Obscurity should

Windows 11

For the past few weeks I have been getting texts from my clients... "Windows is telling me I have to upgrade to Windows 11!" "Should I upgrade to Windows 11?" The short answer:"No!" The longer answer:Not at this time. It is March 2022. Windows 11 was released in

OneDrive Confusion

Many of our clients use Office 365 and OneDrive and there is a really annoying aspect to OneDrive that confuses our clients all the time. The source of the confusion is that Microsoft has two different types of user accounts: Microsoft accountsOffice 365 accountsTo make matters worse Microsoft refers to

USB for the Executive

USB was created in 1996 with the intention of making it easier for users to connect peripherals to their computers. Fast forward to today, there are multiple USB standards and dizzying array of connectors. The really short version for the impatient......Look for and purchase Thunderbolt 4 cables and devices.

A practical example of regex.

I want to transform a collections of files from this: Into this: I could rename each file by hand, but this would take a bit of effort, is boring and annoying. Using a regex expression and PowerRenamer I can do this in one go. This is the regular expression I

We don't have to win today, but we have to fight everyday.

https://beau-of-the-fifth-column.creator-spring.com/listing/we-don-t-have-to-win-today?product=2

Tools

Wormhole...simple, private file sharing.

A few days ago my sister emails me with a question about how to send files securely. I use a self-hosted version of NextCloud (think a private version of Dropbox on steroids). This would not work for my sister: 1) it costs money and 2) it would be to complicated

The Linux Philosophy

Treat everyone equally. Allow everyone the maximum amount of power.

Anatomy of a Phishing Email.

Yesterday, I received a phishing email. We use an excellent 3rd party spam and malware filter and occasionally a bad email gets through. Below is an image of the email received and the clues that this email was not legitimate. Technology can only do so much to protect you and

Privacy In the Age of the Internet

Over two decades ago I was talking with one of my father's former employees who had gone on to create a very successful commercial media company. We were discussing the Internet and the future of advertising. This was the late 1990's when the Internet hype machine was in full swing.

Security

"Fun" Fact

85% of cyber attacks involve human error.-- 2021 verizon Data Breach Investigation Report Bottom lineThe best way to secure your life and your business is through training and education.

Office365

Which is better OneDrive or Dropbox?

I recently received this question from one of my clients. Like many of my clients they have an Office 365 subscription and use a 3rd Party tool to archive email and backup Office 365. My Answer:Like everything…it depends. Dropbox, OneDrive and other similar applications have advantages and disadvantages.

Ripping DVDs (Part 2)

In part 1 of my quest to rip my DVDs to digital files I described the high level overview of how to setup a Linux workstation to rip DVDs. In part 2 I am going to describe the process in detail. So I started with a MacBook 2008 (I think)

Ripping DVDs

I have been migrating all my media from physical discs to files for well over a decade. One might call me an early adopter ;-). Until this morning the only physical media I had not converted to digital files were the dozen or so DVDs I have acquired over the

Information OVERLOAD...

Going through my morning routine drinking coffee and checking email I came across a tip on a computer system administrator focused mailing list with some practical advice on how to manage computer alerts. Point #1High alert volume will inevitably lead to 'Alert Fatigue'Point(s) #2Alerts should be relevant, timely and

Security

(Cyber)security & Social Engineering

Physical security and computer security have very different sets of concerns and operational practices. Even with their differences there is some overlap and it is a useful exercise to look at the commonalities and differences when thinking about your own personal and professional cybersecurity. This video is an interview with

GMail <-> Outlook Sync

In days of old when men were bold we used paper based calendars and address books, today we have our mobile phones, one or more computers, Gmail, Outlook, iCloud and keeping all this in sync can be a pain in the butt. The #1 best solution is to have one

Virtualization

How to add a remote Portainer endpoint using the Portainter Agent.

Portainer is a handy web interface for managing Docker containers. If you manage several Docker hosts than it is useful to attach remote endpoints to a central Portainer container to enable easy access to all your Docker hosts and their containers. There are a few ways to add a remote

Traefik Priority

I just needed a "new" feature of Traefik. It is not actually a new feature of Traefik just new to me. The issueI needed to add a second domain name to one of my sites so that Let's Encrypt would generate a certificate for that domain, so I modified the