Ubuntu is a popular Linux distribution that is widely used in server administration. In this blog, we will explore some of the key aspects of Linux server administration using Ubuntu commands.
Installation and Configuration:
- The first step in Linux server administration using Ubuntu commands is to install the operating system and configure it for the specific needs of the organization. The installation process is straightforward and can be completed using the following commands:
a) sudo apt-get update
b) sudo apt-get install ubuntu-server
Once the installation is complete, the system can be configured using various Ubuntu commands such as:
Configuring network interfaces using the "ifconfig" or "ip" command
Setting up firewalls using the "ufw" command
Managing user accounts and permissions using the "adduser" and "chmod" commands
Securing the Ubuntu server is critical to ensure that it is protected against unauthorized access and attacks. The following Ubuntu commands can be used to implement security measures:
Setting up firewalls using the "ufw" command
Security:
sudo ufw enable
Installing security updates using the "apt-get update" and "apt-get upgrade" commands
sudo apt-get update
sudo apt-get upgrade
Using encryption for sensitive data using the "gpg" command:
gpg --encrypt filename
It will prompt to new shell:
See the content of file after encryption file :
You will see the Encrypted File like this :
To Decrypt the content of file :
gpg -d <File name>
Memory and Performance Optimization:
Monitoring the Ubuntu server is essential to ensure that it is operating at peak performance. The following Ubuntu commands can be used for monitoring and performance optimization:
Checking system logs using the "tail" command:
tail -f /var/log/syslog
Backing up data is an essential component of Linux server administration using Ubuntu commands. The following Ubuntu commands can be used for backups and recovery:
Backup and Restoration:
Creating backups of critical data using the "tar" command
tar -czvf backup.tar.gz /path/to/data
Storing backups in a secure location using the "scp" command
scp backup.tar.gz user@remote_host:/path/to/backup/
Commands Summary:
sudo apt-get update
sudo apt-get install ubuntu-server
sudo ufw enable
sudo apt-get update
sudo apt-get upgrade
gpg --encrypt <filename>
gpg -d <File name>
tail -f /var/log/syslog
tar -czvf backup.tar.gz /path/to/data