As a developer and occasional-system administrator, I often setup up new servers or configure development environments. Over time, I’ve compiled a list of essential commands that I frequently use. This post serves as a quick reference guide for myself and potentially other developers who might find these commands useful.
In this collection, you’ll find commands for updating and installing basic utilities, setting up web servers, configuring SSL certificates, and installing popular programming languages and runtime environments. While these commands are primarily tailored for Ubuntu-based systems, many can be adapted for other Linux distributions as well.
Remember, it’s crucial to understand what each command does before executing it, especially when working with sudo privileges. Always ensure you’re using the most up-to-date versions of software and follow best practices for security when setting up your servers or development environments.
Happy hacking! 😎
Utils
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install -y apt-transport-https ca-certificates curl net-tools
sudo apt install nginx
Certbot
sudo snap install core; sudo snap refresh core
sudo snap install --classic certbot
sudo ln -s /snap/bin/certbot /usr/bin/certbot
Golang
wget https://go.dev/dl/go1.23.1.linux-amd64.tar.gz
rm -rf /usr/local/go && tar -C /usr/local -xzf go1.23.1.linux-amd64.tar.gz
export PATH=$PATH:/usr/local/go/bin
go version
Node.js
Instructions for Ubuntu (Link)
# Node.js 22.x
curl -fsSL https://deb.nodesource.com/setup_22.x -o nodesource_setup.sh
# Node.js v20.x
curl -fsSL https://deb.nodesource.com/setup_20.x -o nodesource_setup.sh
# Node.js v18.x
curl -fsSL https://deb.nodesource.com/setup_18.x -o nodesource_setup.sh
sudo -E bash nodesource_setup.sh
sudo apt-get install -y nodejs
node -v
Docker
curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh get-docker.sh
sudo usermod -aG docker $USER
sudo systemctl daemon-reload
sudo systemctl restart docker
CRI-Dockerd
git clone https://github.com/Mirantis/cri-dockerd.git
cd cri-dockerd
mkdir bin
go build -o bin/cri-dockerd
mkdir -p /usr/local/bin
sudo install -o root -g root -m 0755 bin/cri-dockerd /usr/local/bin/cri-dockerd
sudo cp -a packaging/systemd/* /etc/systemd/system
sudo sed -i -e 's,/usr/bin/cri-dockerd,/usr/local/bin/cri-dockerd,' /etc/systemd/system/cri-docker.service
sudo systemctl daemon-reload
sudo systemctl enable cri-docker.service
sudo systemctl enable --now cri-docker.socket
Kubernetes
sudo apt-get update
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.26/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.26/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-get update
sudo apt-get install -y kubelet kubeadm kubectl
Setup
sudo systemctl start kubelet
sudo kubeadm init --pod-network-cidr=10.244.0.0/16 --cri-socket=unix:///var/run/cri-dockerd.sock
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
kubectl taint nodes --all node-role.kubernetes.io/master-
Optional
sudo apt-mark hold kubelet kubeadm kubectl
MongoDB
sudo apt-get install gnupg curl
sudo systemctl status mongod
sudo systemctl start mongod
sudo systemctl stop mongod
sudo systemctl restart mongod
replSetName: rs0
MongoDB 6.0
curl -fsSL https://pgp.mongodb.com/server-6.0.asc | sudo gpg -o /usr/share/keyrings/mongodb-server-6.0.gpg --dearmor
# Ubuntu 20.04
echo "deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-6.0.gpg ] https://repo.mongodb.com/apt/ubuntu focal/mongodb-enterprise/6.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-enterprise-6.0.list
# Ubuntu 22.04
echo "deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-6.0.gpg ] https://repo.mongodb.com/apt/ubuntu jammy/mongodb-enterprise/6.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-enterprise-6.0.list
sudo apt-get update
sudo apt-get install -y mongodb-enterprise
sudo systemctl enable mongod.service
Elastic
Elasticsearch
wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo gpg --dearmor -o /usr/share/keyrings/elasticsearch-keyring.gpg
sudo apt-get install apt-transport-https
echo "deb [signed-by=/usr/share/keyrings/elasticsearch-keyring.gpg] https://artifacts.elastic.co/packages/8.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-8.x.list
sudo apt-get update && sudo apt-get install elasticsearch
sudo systemctl daemon-reload
sudo systemctl enable elasticsearch.service
sudo systemctl start elasticsearch.service
Setup
sudo /usr/share/elasticsearch/bin/elasticsearch-reset-password -u elastic
sudo /usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s kibana
sudo /usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s node
sudo /usr/share/elasticsearch/bin/elasticsearch-reconfigure-node --enrollment-token
Kibana
wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo gpg --dearmor -o /usr/share/keyrings/elasticsearch-keyring.gpg
sudo apt-get install apt-transport-https
echo "deb [signed-by=/usr/share/keyrings/elasticsearch-keyring.gpg] https://artifacts.elastic.co/packages/8.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-8.x.list
sudo apt-get update && sudo apt-get install kibana
sudo /bin/systemctl daemon-reload
sudo /bin/systemctl enable kibana.service
sudo systemctl start kibana.service
Filebeat
curl -L -O https://raw.githubusercontent.com/elastic/beats/8.8/deploy/kubernetes/filebeat-kubernetes.yaml
Metricbeat
curl -L -O https://raw.githubusercontent.com/elastic/beats/8.8/deploy/kubernetes/metricbeat-kubernetes.yaml
Jenkins
curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io.key | sudo tee /usr/share/keyrings/jenkins-keyring.asc > /dev/null
echo deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] https://pkg.jenkins.io/debian-stable binary/ | sudo tee /etc/apt/sources.list.d/jenkins.list > /dev/null
sudo apt-get update
sudo apt-get install fontconfig openjdk-11-jre
sudo apt-get install jenkins
Uninstall
sudo apt-get purge kubelet kubeadm kubectl
sudo apt-get purge docker docker-engine docker.io containerd runc
sudo rm -rf /var/lib/docker
sudo rm -rf /var/lib/containerd
sudo apt-get purge mongodb-enterprise*
sudo apt-get clean
./J