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Nginx proxy and 'an upstream response is buffered to a temporary file' warning

In today’s Nginx log message of the week, we got the following warning:2022/05/02 08:03:16 [warn] 31447#0: an upstream response is buffered to a temporary file /var/lib/nginx/proxy/1/...

In Nginx, May 08, 2022

Install Redis on CentOS 9 Stream

Redis is the most popular and most used cache, message broker, and in-memory key value database store service nowadays. So today I’m going to show you how to install Redis on CentOS 9...

In Redis, May 07, 2022

Tweaking Nginx proxy_buffers parameters

Before setting up YOLO values for proxy_buffers and proxy_buffer_size parameters, you need to find out the average and maximum response sizes first. On a side note, the following step...

In Nginx, May 06, 2022

Install Nginx on CentOS 9 Stream

Nginx is one of the most used web servers nowadays and can be easily installed on the new CentOS 9 Stream OS. Let’s see how to install Nginx on CentOS 9 Stream and enable the http and...

In Nginx, May 05, 2022

Terraform aws_acm_certificate resource forces constant replacement

Take a look at the following Terraform code block:```bashresource “aws_acm_certificate” “devcoops” { domain_name = “” subject_alternative_names = [“devcoop...

In Terraform, May 04, 2022

Install Postfix on Amazon Linux 2

Besides Exim, Postfix is another useful and free mail transfer agent that is under IBM public license. The installation is easy and simple so let’s see how to install Postfix on Amazo...

In Postfix, May 03, 2022

PowerShell equivalent of the touch command in Linux

There might be a point in your IT career where you need to switch to a Windows OS dev machine whatever you like it not because the CTO decided to put all eggs in the Microsoft / Azure...

In PowerShell, May 02, 2022

Install Exim on Amazon Linux 2

Exim is a useful mail transfer agent easy to manage and set up. The installation process is easy as well, so let’s see how to install Exim on Amazon Linux 2.

In Exim, May 01, 2022

Rename a Git branch

There might be a case where you need to rename a current branch you are already working on, and I’m gonna show you the least painful way to do so. Now, the most common reason is of co...

In Git, Apr 30, 2022

Install Dig on Amazon Linux 2

Yet another useful DNS tool besides nslookup is dig. It can be used through the Linux command line that offers a quick check of the DNS records.

In DNS, Apr 29, 2022