Entries Categorized as 'Technology'

How To Get SSH Logins Working Again In macOS Ventura

Author: , February 24th, 2023

SSH login from older hosts running OS X Yosemite 10.10.5 to macOS Ventura 13.2.1 was not working. SSH failed with a “No hostkey alg” error.

Be sure to stop and start Remote Login under System Settings -> General -> Sharing

R.I.P. David Crosby

Author: , January 19th, 2023

David Crosby, Born 1941, Died Jan 18th, 2023 at 81 years old

How To Use AWS CloudTrail For Intrusion Detection To Monitor Your AWS Account For Unwanted Activity

Author: , December 30th, 2022

Summary Use AWS CloudTrail as the basis for a simple Intrusion Detection System to monitor your AWS account for unwanted activity. Background While I follow best practices for security, it is always possible that a bad actor could obtain my credentials and gain access to my AWS account. Once access is gained, such criminals could […]

How To Fix “iCloud Account Could Not Be Removed” Error on OS X Yosemite 10.10.5

Author: , November 24th, 2022

PROBLEM: Unable to sign out of iCloud on OSX Yosemite or disable Keychain SOLUTION: Delete the following, then reboot:

How To Disable Automatic Updates in WordPress

Author: , September 19th, 2022

To disable automatic updates in WordPress, simply edit the wp-config.php file in your WordPress root directory and add the following line:

R.I.P. Queen Elizabeth II

Author: , September 8th, 2022

How To Fix WPDataTables Error “You are trying to load a table of an unknown type” in WordPress

Author: , September 7th, 2022

If you get the following error in WordPress when using the WPDataTables plugin, follow these steps to fix it: “You are trying to load a table of an unknown type. Probably you did not activate the addon which is required to use this table type.” SOLUTION SUMMARY: You must update the plugin files manually, deactivate […]

How To Preserve Quotes In Bash Arguments

Author: , April 18th, 2022

If you want to preserve quoting to pass shell arguments to a called command, use the four characters “$@” (including the double quotes) instead of the two characters $*

How To Disable Email Bounce Messages In Postfix

Author: , March 18th, 2022

How To Change The Outgoing Email Domain In MacOS

Author: , March 17th, 2022

When I sent email from my desktop Mac cron jobs, it went out with the full hostname as the domain, i.e.: root@demo.wyzaerd.com, when all I wanted was a simple root@wyzaerd.com for ease of deliverability and domain maint. Edit the mail configuration file main.cf:

Add/edit the myorigin value of $mydomain: