Entries Categorized as 'Technology'

How To Interpret The Httpful\Response Object

Author: , December 10th, 2021

I use the httpful library from https://phphttpclient.com The website has not defined the Httpful\Response keys anyplace easy to find, so I have documented them here:

How To Block Email Using Subject Headers In Postfix

Author: , December 7th, 2021

I needed to block email based on the Subject header. The solution is simple: Edit main.cf as root and uncomment or add:

Next, creaate or edit /etc/postfix/header_checks as root and add the following line:

Finally, run sudo postfix reload NOTE: Do NOT add the “i” after the regular expression! It is case-insensitive by […]

How To Enable Focus Follows Mouse On MacOS

Author: , December 2nd, 2021

Use AutoRaise! From the docs: “When you hover a window it will be raised to the front (with a delay of your choosing) and gets the focus.” Web page: https://github.com/sbmpost/AutoRaise Download: https://github.com/sbmpost/AutoRaise/archive/refs/heads/master.zip

My ~/.AutoRaise file:

How To Bounce the Dock Icon For All Incoming Email on MacOS

Author: , November 2nd, 2021

I needed a way to get the dock icon to bounce for all incoming emails and there did not seem to be any option to do so. There is actually a simple way to do it, but it is not intuitive. The key is to add a new Rule! Open Mail.app and choose Mail -> […]

How To Fix Let’s Encrypt Root Certificate Expiration on AWS Linux

Author: , October 7th, 2021

On Sept 30th 2021 Let’s Encrypts previous root certificate DST Root CA X3 (and it’s R3 intermediate) will expire. It has been replaced by their ISRG Root X1 certificate (and replacement R3 intermediate). The version of the R3 intermediate signing certificate which chains to DST Root CA X3 expired September 29 19:21:40 2021 GMT. The […]

How To Enable WordPress Debug

Author: , September 22nd, 2021

vi wp-config.php Add at the bottom:

You can also use this URL in later versions: /wp-login.php?action=entered_recovery_mode

How To Sync AWS S3 Buckets Using RClone

Author: , September 9th, 2021

The aws s3 sync command is slow and painful! I needed a more efficient way to sync to large buckets (prod to dev). Finally settled on RClone: https://rclone.org/docs/

During rclone config I called remote “s3” ;-}

How To Get A Reverse DNS Lookup On The Command Line

Author: , September 1st, 2021

There are three commands in Linux to easily get a reverse DNS lookup with: dig, host and nslookup. Here are examples of each: shell> dig -x 3.214.2.238 +short

shell> dig -x 3.214.2.238

shell> host 3.214.2.238

shell> nslookup 3.214.2.238

How To Load /etc/rc.local At Boot Time

Author: , August 12th, 2021

My /etc/rc.local was not loading at boot time. rc.local is a symlink to /etc/rc.d/rc.local lrwxrwxrwx 1 root root 13 Jun 22 2020 rc.local -> rc.d/rc.local I had to execute the following:

How To Force Postfix To Use Only IPv4

Author: , August 12th, 2021

vi /etc/postfix/main.cf

service postfix restart