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Fixing Nginx Docker error “16440 upstream prematurely closed connection”

Here at Bobcares, we help Website owners, SaaS providers and Hosting companies run highly reliable web services.

One way we achieve that is by having server experts monitor production servers 24/7 and quickly resolving any issue that can affect uptime.

Recently, engineers at our 24×7 monitoring service noticed that a site hosted by our customer in a Docker server was offline. (more…)

How to fix ‘503 service unavailable error’ in your websites

In our role as Server administration specialists for server owners, website errors are a commonly encountered issue that we resolve for them.

‘503 service unavailable error’ is one such website error. Recently, we were contacted by a Docker hosting provider who was getting this error in his website.

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How to handle multiple project management for WordPress without incurring software conflict

How to handle multiple project management for WordPress without incurring software conflict

Being the most popular CMS for websites, WordPress development and management has an important role in online businesses. WordPress project management is a common task we perform as a part of our custom software development services.

Many often, development companies have multiple WordPress projects, which creates so much overhead and can incur software conflicts. From software development to DevOps, we cover all the stages involved in the project management for WordPress, for our customers. (more…)

How to update Docker image to maintain your containers secure

How to update Docker image to maintain your containers secure

In a Docker infrastructure, the Docker containers are created using images. Containers are instances that are created when the image files are executed. These images can be of web servers, mail servers, applications, and so on.

Docker images are stored in locations knows as repository or registry. There are two types of repository – public registry (Docker hub maintained by Docker) and private repository (maintained by Docker users). (more…)

How to ensure persistent Docker storage using data volumes

How to ensure persistent Docker storage using data volumes

Docker containers are aimed at creating and managing application environments that can be deployed in the matter of a few seconds. Containers are usually created for temporary purposes, depending on its business application.

When a container’s application purpose is served, it can be deleted and the resources allotted to it can be reused for creating new containers for other purposes, especially when used in development and testing services.
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Easy steps to setup your Docker private repository

Easy steps to setup your Docker private repository

In a Docker system, the containers are created based on images which are like templates. An image can be of an OS, webserver, mail server or any application that you require to create a container instance for.

Docker itself provides a set of container images for use by the public. These images are stored in a public repository known as the Docker hub. Users can download and upload their images from this docker registry.

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How to expose docker ports to make your containers externally accessible

How to expose docker ports to make your containers externally accessible

Virtualization using Docker containers has gained popularity in application hosting, owing to its light-weight design and fast-deployment features.

Docker architecture is in such a way that the containers can connect to the outside world by default. But you cannot access the container directly from outside.

While disabling external access is a good security measure, there maybe many instances where you need to access the container data from outside, such as application testing, website hosting and so on. (more…)

How to connect to Docker container to manage the applications

How to connect to Docker container to manage the applications

Docker containers gained popularity as they enabled fast application deployment. This made them ideal solution for hosting applications and services. But to access these applications or services externally, we need to expose the docker ports.

While port forwarding is useful for end-users to access the container applications, developers and system administrators who manage the Docker infrastructure should have ways to connect to Docker containers from the backend.
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Increase docker container size easily with these simple steps

Increase docker container size easily with these simple steps

Docker containers can be used for multiple purposes such as application deployment or service hosting. The number of containers that can be hosted in a machine depends on the total disk space available.

For cost-effective hosting purposes, it is often required to restrict the individual docker container size. This limitation is also useful to ensure that a single user do not use up the entire disk space in the host machine. (more…)

LXC vs Docker – What’s the best for your website?

LXC vs Docker – What’s the best for your website?

Due to its ‘light-weight’ reputation, container technologies such as Docker and LXC get a lot of attention from online businesses these days.

Docker and LXC are suited for different purposes. But in the flurry of information floating in the internet, these differences often get overlooked.

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