#linuxvps #linuxserver #linux #securitytips #ssh #firewall #password #update
Linux server is a type of computer server that uses the Linux operating system. Linux servers are widely used for hosting websites, running applications, managing databases, and providing network services. As Linux servers are widely used for various purposes, their security has become a critical concern. Cybersecurity threats such as hacking, malware, and other attacks can cause significant damage to Linux servers, potentially leading to data loss, system downtime, and even financial losses.
By the end of this video, you'll have a better understanding of how to secure your Linux server and protect it from potential security threats. Whether you're a beginner or an experienced Linux user, this video will provide you with valuable information to help keep your server secure.
0:37 Keep the Linux Kernel and Software Updated
1:09 Change Password Regularly
1:38 Change SSH Port
1:49 Enable the Firewall Service and Block Unused Ports
2:44 Use SSH Key Over the Password for Authentication
Commands:
Obtain the root permission
sudo –i
Step 1: Keep the Linux Kernel and Software Updated
apt update && apt upgrade
apt update && apt dist-upgrade
Step 2: Change Password Regularly
passwd
Step 3: Change SSH Port
Step 4: Enable the Firewall Service and Block Unused Ports
apt-get update
apt-get install ufw
ufw allow port/tcp
ufw enable
ufw status
ufw deny port/tcp
ufw reload
Step 5: Use SSH Key Over the Password for Authentication
vi /etc/ssh/sshd_config
service sshd restart
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