Here’s a tip on how to fix the error message:
nginx.service: Failed to read PID from file /run/nginx.pid: Invalid argument
quick and easy. This fix should do it for you.
How to install the AWS CLI tools on Fedora, quick and easy
The AWS Command Line Interface (CLI) is a set of tools AWS provides to allow you to administer your AWS cloud infrastructure and other services in the command line on Windows, Mac and Linux. Installing them is quick and easy. Here is a quick guide to get you started.
A cybersec showdown of the clouds: cyber security on AWS versus Microsoft Azure
[Updated May 16, 2018] AWS and Microsoft, the two leaders in the race for the best cloud infrastructure, have recognized cyber security as a barrier of adoption. Cyber security professionals are weary of migrating workloads into public cloud environments as it may carry significant risks. Thus, Amazon and Microsoft have developed specialized services to help safeguard users’ cloud infrastructure and data.
This post discusses ways to mitigate cyber threats and launch a cyber defense on AWS and Azure.
How to set up a mail server on AWS EC2 using open source software
When running your own mail server you have complete control over its performance and reliability. Here is how to get started with an open-source mail server on AWS EC2.
How to verify the remaining validity of your letsencrypt certificates
In order to figure out how many days your letsencrypt certificates have left, you could check an online services such as:
https://www.ssllabs.com/ssltest/index.html
However, that won’t work for a mail server that’s not also running a web server using the same certificate.
In this case, your best bet is to check the certificate file directly using the openssl command as follows:
openssl x509 -noout -dates -in /etc/letsencrypt/live/smtp.yourmailserverdomainname.com/cert.pem