What is DHCP Server?
Dynamic Host Configuration Protocol (DHCP) is a network protocol that automatically assigns TCP/IP information to client machines. Each DHCP client connects to the centrally located DHCP server, which returns the network configuration (including the IP address, gateway, and DNS servers) of that client.
Use of DHCP Server
DHCP is useful for automatic configuration of client network interfaces. When configuring the client system, you can choose DHCP instead of specifying an IP address, netmask, gateway, or DNS servers. The client retrieves this information from the DHCP server. DHCP is also useful if you want to change the IP addresses of a large number of systems. Instead of reconfiguring all the systems, you can just edit one configuration file on the server for the new set of IP addresses. If the DNS servers for an organization changes, the changes happen on the DHCP server, not on the DHCP clients. When you restart the network or reboot the clients, the changes go into effect.
Advantages of having a DHCP server connected to network
No IP address conflicts. DHCP can guarantee that all hosts on the network will have unique IP address. DHCP server keeps a record of all IP addresses assigned and cross reference them with host's MAC addresses. Based on the MAC address DHCP allows for a fixed parameter configuration for a specific host. Efficiency with minimum local client configuration.
The numerous FTP sites on the Internet are FTP servers supporting FTP user accounts with anonymous login. Any Linux system can be configured to support anonymous FTP access, turning them into network FTP sites. Such sites can work on an intranet or on the Internet.
Step by step Vsftpd Configuration
Step: 1 Install Vsftpd
First check required packages for Vsftpd is installed or not.
Install vsftpd with .rpm package
Install vsftpd with yum
Setp:2 Configure Vsftpd
vsftpd.conf is the main configuration file of Vsftpd Server which is located in /etc directory.
Let’s edit the configuration file for vsftpd: