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IT from Scratch

Small Business IT from the ground up

How to Get the macOS Catalina Installer, Post Big Sur

November 17, 2020 By The New Guy Leave a Comment

Since macOS Big Sur was released, the installer for macOS Catalina can be hard to locate. Fortunately there is a simple way to find it. Simply go to this URL on the target Mac, and it will open macOS Catalina in the App Store where you can download and install it:

https://apps.apple.com/us/app/macos-catalina/id1466841314?mt=12

Filed Under: Scratch

Mac: How to Get SHA1 Hash

March 23, 2017 By The New Guy Leave a Comment

To verify file integrity, people sharing files will often provide a hash. That way, when you receive the file, you can run the same function on the file and verify if it is the same as the one you intended to receive. There are various hashes out there, but this snippet will show you how to get SHA1 hash on a Mac. [Read more…]

Filed Under: Scratch Tagged With: macOS, terminal

iTunes error: “You do not have enough access privileges for this operation”

March 22, 2017 By The New Guy 7 Comments

After recently wiping my MacBook Pro and reinstalling macOS, I started getting this error every time I opened iTunes: “You do not have enough access privileges for this operation.”

You do not have enough access privileges for this operation

Though the error is slightly vague, the gist of what’s happening was still pretty clear: there must be a permissions error of some sort. But finding and fixing that error was not as straight-forward as I would have hoped.

Find out what I did to fix the “You do not have enough access privileges for this operation” error in iTunes after the break. [Read more…]

Filed Under: Scratch Tagged With: iTunes, macOS, terminal

Is Websense Filtering My Internet Traffic?

July 1, 2015 By The New Guy Leave a Comment

Websense is one of the most well-known web filtering services in the world of IT. It is used by businesses, churches, and everything in between thanks to its robust set of features and its efficacy in managing internet access.

If you are an IT professional working for an organization that implements Websense, testing to see if your web traffic is actually being filtered or not can be a very useful troubleshooting tool.

Or if you are a delinquent internet user of such an organization, you might want to check if your traffic is being monitored before you visit NSFW websites.

Thankfully, both of these use cases can be addressed by this handy website. [Read more…]

Filed Under: Scratch Tagged With: Websense

How to Delete a Mac VPN Profile

October 28, 2013 By The New Guy 1 Comment

I was setting up the firm’s virtual private network (VPN) and testing out a few different configurations when I realized that I couldn’t delete the profiles I’d loaded from the System Preferences app. Though they don’t make it easy, there is a way to delete a Mac VPN profile. Read on to learn how.
[Read more…]

Filed Under: Scratch Tagged With: Mac, terminal, VPN

Ubuntu: “The following packages have been kept back”

August 19, 2013 By The New Guy 1 Comment

I was doing some work on an Invenio installation today, and I came across a warning that’s pretty common to Ubuntu: “The following packages have been kept back.” Here’s what happened, and here’s how to fix it.
[Read more…]

Filed Under: Scratch

Error: No module named invenio.inveniocfg

August 16, 2013 By The New Guy Leave a Comment

Just a quick post here to get you out of a jam. I’ve been working with Invenio recently, and I ran into this error when working on a new server:
Error: No module named invenio.inveniocfg
It took a little while to figure out the solution, so to save you some time, I’ll show you how to fix it. [Read more…]

Filed Under: Scratch Tagged With: Invenio

Ubuntu: How to List All Installed Packages

August 6, 2013 By The New Guy Leave a Comment

Sometimes when you’re working on your Ubuntu server (or desktop for that matter) you need to list all installed packages.

Here’s an easy way.
[Read more…]

Filed Under: Scratch

Tar

August 5, 2013 By The New Guy Leave a Comment

Tar
Another insightful comic from XKCD.

Filed Under: Scratch

Cryptsetup: Command failed with code 22: Invalid argument

August 1, 2013 By The New Guy 17 Comments

After installing Ubuntu with encrypted LVM, I decided to do go ahead and encrypt the external drives the server uses with cryptsetup LUKS command. But for some reason I kept getting this error: Command failed with code 22: Invalid argument

I plan to write up a detailed guide on encrypting drives, but in the meantime I just wanted to post how to fix this error.
[Read more…]

Filed Under: Scratch

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Recent Posts

  • How to Get the macOS Catalina Installer, Post Big Sur
  • Mac: How to Get SHA1 Hash
  • iTunes error: “You do not have enough access privileges for this operation”
  • Is Websense Filtering My Internet Traffic?
  • How to Delete a Mac VPN Profile
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