The ramblings of a computer geek
While using Perl Mail::Mailer to send from an on-site application to our Microsoft 365 tenancy via SMTP, we had an oddity. We’d already setup the Microsoft 365 tenancy to have a receive connector which was autheniticating via the source address, i.e. our on-premise IP range. When testing via a test Perl script which was the […]
More...Let’s say you have a running Docker Container and you need to copy a file from it down to the host, you might need to do this while building a Docker image perhaps to see what a file that has been autogenerated looks like for example. You can do this by running the following from […]
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The document provides an overview of how to setup and configure OKTA with a test Shibboleth sP (Service Provider) instance with a example site which is secured using OKTA. It can be used to explore how OKTA and Shibboleth sP interact with the SAML assertion exchange. The deployment is simple and provides the following: An […]
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When using Route53 for DNS, you have the option of using a special AWS only type of record for the Apex or Root record of the domain (zone). Taking an example domain.com, you typically would have a website which has an A record called www.domain.com. But what if you want to have the apex of the domain […]
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Its recommended to manage your EC2 instances via SSM if/when you need console access rather than using SSH which can pose a security risk. Of course if you need to get or put files into the EC2 instance this can be a bit tricky, however if you have an S3 bucket available you can use […]
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BASH Prompt via SSM by Default To set the BASH as the default prompt when using SSM, within the AWS Console browse to: Then add the following: Then attempt to login via SSM, you should now find you are getting the BASH prompt. Fancy Colours Edit the .bashrc file within the user home directory and set as […]
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As a test we are using OpenSSL to perform some credentials testing using an Enterprise Application configured in Microsoft 365 to connect using IMAP(S) and SMTP via OpenSSL to validate how OAuth modern authentication works. Create Enterprise Application Firstly we create an Enterprise Application, we are going to be using Win64 OpenSSL v3.3.3 Light on […]
More...Sometimes SMTP servers what a particular EHLO/HELO argument for connecting clients, you can make Thunderbird do this by setting a new setting Settings->Config Editor, then add the following setting: mail.smtpserver.smtp1.hello_argument Specifying what you want Thunderbird to announce itself as.
More...If you want to use OpenSSL on Microsoft Windows, there are a number of packages provided that allow you to do this, in this example we’ll use Shinning Light Production’s OpenSSL MSI Package. Step 1 – Download and Install OpenSSL Download the installer from: https://slproweb.com/products/Win32OpenSSL.html, I used Win64 OpenSSL v3.3.3 Light, but there may be […]
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