zerai.xyz/content/post/vps-config.md

+++ title = "Vps Config" date = 2022-11-20T19:18:00-05:00 lastmod = 2022-11-20T19:18:00-05:00 tags = ["Config","VPS"] categories = ["Linux"] imgs = [] cover = "" # image show on top readingTime = true # show reading time after article date toc = true comments = false justify = false # text-align: justify; single = false # display as a single page, hide navigation on bottom, like as about page. license = "" # CC License +++

A server configuration is a set of instructions that tells a computer how to operate. The instructions can include the type of hardware to use, the software to install, and the settings to use. A server configuration can be used to set up a new computer, or to change the settings on an existing computer. Here is the configuration I usually use for my fresh new sever:

Host

1. declare hosts

Code

/etc/hosts

Exemple:

173.249.31.236 node2
144.91.95.252 node1

1. change hostname

Edit hostname files

vim /etc/hostname
vim /etc/hosts

Change SSH

1. Open the /etc/ssh/sshd_config file

2. Locate the following line:

    Port 7823
   

3. Restart the SSH service using the appropriate command for your Linux distribution:

    service ssh restart
   

Docker

  $ apt install docker docker-compose -y
  $ sudo systemctl start docker
  $ sudo systemctl enable docker
  $ sudo usermod -aG docker $USER
  $ sudo newgrp docker
  $ sudo usermod -aG docker [non-root user]

Swarm

    docker swarm init --advertise-addr 144.91.95.252

Gluster

1. install in all nodes:

    sudo apt-get install software-properties-common -y
    sudo apt-get update
   
    sudo apt install glusterfs-server -y
   
    sudo systemctl start glusterd
    sudo systemctl enable glusterd
   

2. generate ssh

    ssh-keygen -t rsa
   

3. probe "master only"

    gluster peer probe node2;
    gluster pool list
   

4. create volume "all machines"

    sudo mkdir -p /gluster/swarm
   

"master only"

    sudo gluster volume create swarm-gfs replica 2 node1:/gluster/swarm node2:/gluster/swarm force

1. start volume

    sudo gluster volume start swarm-gfs
   
    echo 'localhost:/swarm-gfs /mnt glusterfs defaults,_netdev,backupvolfile-server=localhost 0 0' >> /etc/fstab
    mount.glusterfs localhost:/swarm-gfs /mnt
    chown -R root:docker /mnt
   

Portainer

ON manager

    curl -L https://downloads.portainer.io/portainer-agent-stack.yml -o portainer-agent-stack.yml
    
    docker stack deploy         --compose-file=portainer-agent-stack.yml portainer