Change hostname to docker-server

• How to change Hostname on Amazon Linux Permanently

Install docker

# sudo yum update -y
# yum install docker -y

Start docker services

[root@docker-server ~]# systemctl start docker

[root@docker-server ~]# systemctl status docker

[root@docker-server ~]# systemctl enable docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.

Create a dockeradmin user

[root@docker-server ~]# useradd dockeradmin
[root@docker-server ~]# passwd dockeradmin

[root@docker-server ~]# id dockeradmin
uid=1001(dockeradmin) gid=1001(dockeradmin) groups=1001(dockeradmin)

[root@docker-server ~]# usermod -aG docker dockeradmin

[root@docker-server ~]# vim /etc/ssh/sshd_config
PasswordAuthentication no -> yes

[root@docker-server ~]# systemctl reload sshd.service

/var/run/docker.sock

[root@dockerhost ~]# chmod 777 /var/run/docker.sock

Basic docker commands

# docker images
# docker ps -> only running
# docker ps -a -> all
# docker --help