Linux
- Confirming the Linux version on your server
- Confirming your Linux version or Kernel version
- Upgrading Ubuntu OS
- Adding repositories to a Linux server
- Booting into single user mode (Classic Linux)
- Managing iptables through CSF (Linux Command Line)
- Getting started with iptables
- Troubleshooting network problems in Linux
- Resetting root passwords with a KVM/IP
- Changing SMTP ports (Linux)
- Connecting with Secure Shell (SSH)
- Editing files in SSH using VI
- Frequently used SSH commands and their usage
- Modifying SSH connection ports
- Adding and viewing IP addresses on CentOS servers
- Viewing current RAM usage
- Viewing processor details
- Copying a file to another server through SSH
- Adding DNS resolver addresses from the shell
- Adding new domains to DNS servers from the shell
- Querying DNS records for a domain
- Viewing connected user information
- Viewing a man page
- Monitoring server performance using ssh
- Creating new users from the shell
- Downloading a file from the shell using a URL
- Executing shell scripts
- Viewing information about connected FTP users
- Changing server hostnames
- Viewing server load and server uptime