How to Setup and Secure Centos7 Server On Vultr VPS (Vultr Tutorial)
Learn how to setup and secure Centos 7 server on Vultr Cloud VPS. In this tutorial, I will teach everything related to the fundamental of server setup using Centos 7 and Vultr cloud computer such as:
1) Create and setting user privileges
2) Secure your vps using ssh and private keys file
3) Setup basic firewall for your Centos 7 server
4) Create Swap file on Centos
5) Take snapshot of your Vultr VPS
Enjoy the tutorial!…
RECOMMENDED READING:
RECOMMEND VIDEO TUTORIALS:
How to Setup and Secure your VPS on Ubuntu server
✅ https://www.youtube.com/watch?v=G9ljxktp1XE
Vultr Vs DigitalOcean (VPS review)
✅ https://www.youtube.com/watch?v=qShmxrjsODc
How to Install WordPress on Vultr VPS server
✅ https://www.youtube.com/watch?v=JcKjMjTVuc8
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⚠️COMMANDS USED IN THE TUTORIALS
=====================================
1 Setup user privileges
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adduser kimseasok
passwd kimseasok
usermod -aG wheel kimseasok
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2 Generate & Embed SSH Keys
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mkdir .ssh
chmod .ssh 700
vi .ssh/authorized_keys
chmod 600 .ssh/authorized_keys
sudo vi /etc/ssh/sshd_config
PermitRootLogin no
PasswordAuthentication no
sudo systemctl reload sshd
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3 Firewall
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sudo systemctl start firewalld
sudo firewall-cmd –permanent –add-service=ssh
sudo firewall-cmd –permanent –add-service=http
sudo firewall-cmd –permanent –add-service=https
sudo firewall-cmd –permanent –add-service=mysql
sudo firewall-cmd –permanent –add-service=https
sudo firewall-cmd –permanent –add-port=4444/tcp (use port instead of service name)
sudo firewall-cmd –get-services
sudo firewall-cmd –reload
sudo systemctl enable firewalld
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4 Swap File
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sudo fallocate -l 8G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo sh -c ‘echo “/swapfile none swap sw 0 0” ⚠️DOUBLE CLOSING ANGLE BRACKETS /etc/fstab’
centos 7
