RedHat and Friends

Amazon Simple Email Service (SES) is a hosted cloud-based email service to send and receive email using your email addresses and domains. Typically SES is used for sending bulk email or routing emails without hosting MTA. One can use the CLI or server-side programming languages such as PHP or Python to transfer an email via SES. This quick tutorial will show you how to route all outgoing emails with Postfix and Amazon AWS SES on Red Hat Enterprise Linux (RHEL) or CentOS version 8.
[continue reading…]

I use the reboot command to reboot our PostgreSQL server running on RHEL 7. We have a development server running on CentOS 7 too. However, sometimes I noticed database corruption or file issues. Is there is a safe reboot command that will do a graceful reboot for our CentOS or RHEL 7 server without causing any issues? What is the best way to appropriately restart CentOS/RHEL over ssh?
[continue reading…]

One of my PHP and bash scripts depends upon less command to display the help system to other users. But, whenever they run less on a particular version of CentOS or RHEL cloud server, they get an error that reads as: “bash: less: command not found.” How do I install less utility on CentOS or RHEL (Red Hat Enterprise Linux)/Fedora Linux server? How can I configure Linux containers such as Docker or Podman to install less automatically?
[continue reading…]