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Login to LXC container – How we fix it

Looking for an easy and secure way to login to LXC container. We can help you.

LXC container is an operating system-level virtualization method used for running multiple isolated Linux systems on a control host using a single Linux kernel.

At Bobcares, we often get requests to fix LXC login failed error as part of our Server Management Services.

Today, we will see how our Support Engineers fix this error.

How to login to LXC Container?

LXC is an interface for the Linux kernel containment features. It is a powerful API and simple tool which allows the Linux users to create and manage systems. The Linux Containers is an open source container platform that provides a set of tools, templates, libraries, and language binding.

We’ve seen many of our customers experiencing an error when attempting to log in to the LXC container. We log in to the container by the following command.

lxc exec <container-name> -- sudo --login --user <username>

Also, we use the below ssh command to log in to LXC container.

ssh lxcuser@container_ip_address

To find out the LXC IP address we use the following command.

lxc info container-name

Sometimes we used some shell shortcut to login to the LXC. For bash,

lxcsh() { lxc exec "$1" -- sudo --login --user abc; }

We add this in ~/.bashrc on the host.

 

Error in login to the container

We saw how to login to LXC container. Now, let’s look into a few errors related to it. Recently, one of our customers experiencing an error when attempting to log in LXC container via SSH. Let’s see how our Support Engineers fix this error.

Inside the container, we open /etc/ssh/sshd_config and changed the PermitRootLogin to yes.

Login to LXC container

After that we log in to the container without any error.

 

[Need any assistance in log in to LXC Container? – We’ll help you]

 

Conclusion

In short, LXC has a simple command-line interface that improves the user experience when starting containers. Today, we saw how our Support Engineers login to the LXC container and fix the errors.


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