
## Fixing Docker Daemon Socket Permission Denied Error
When you first install Docker and run related commands, you may encounter the following error and have your command rejected.  
```sh
{
    "title": "Docker Daemon Socket Permission Denied Error"
}
---
$ docker ps
permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock:
Get "http://var/run/docker.sock/v1.45/containers/json": dial unix /var/run/docker.sock: connect: permission denied
```
### Cause
This error occurs because the current user does not have permission to access the `/var/run/docker.sock` file.  
By default, this socket file is owned by the `root` user, and only users in the <mark>docker group</mark> are configured to access it.  
```sh
{
    "title": "Chech socket permissions"
}
---
$ ls -l /var/run/docker.sock
srw-rw---- 1 root docker 0 Feb  8 16:00 /var/run/docker.sock
```
### Solution
However, you should not perform Docker commands with `sudo` every time or arbitrarily modify the socket's permissions.  

The most ideal solution is to add the current user to the <mark>docker group</mark>.  
This allows you to run Docker commands without `sudo`.
```sh
{
    "title": "Add current user to docker group"
}
---
$ sudo usermod -aG docker $USER
```
To apply group changes immediately, log out and log back in, or run the command below.
```sh
{
    "title": "Apply group changes"
}
---
$ newgrp docker
```

A quick guide to resolving the 'permission denied' issue when connecting to the Docker daemon socket by managing user groups