File/Print Servers:

• File and Print Sharing: Network sharing allows shared access to disk and print resources using a client/server architecture.

• Server Message Block (SMB): Underpins file and printer sharing in Windows networks; SMB1 deprecated due to serious security flaws.

• Network Basic Input/Output System (NetBIOS): Allowed computers to address each other by name and establish sessions for protocols like SMB.

• File Transfer Protocol (FTP): Enables file upload/download but is unencrypted, posing security risks.

Web Servers:

Provide client access using HTTP/HTTPS, essential for hosting websites and web applications.

• HyperText Transfer Protocol (HTTP): Allows clients to request resources from HTTP servers and is used to serve web pages.

• Uniform Resource Locators (URLs): Addressing scheme specifying the protocol, host location, and file path for accessing resources on the internet.

• Hypertext Transfer Protocol Secure (HTTPS): Secures HTTP traffic using TLS/SSL, encrypting data between the client and server.

Mail Servers:

Utilize SMTP for sending emails and POP3/IMAP for retrieving them from mailbox servers.

Directory and Authentication Servers:

Employ LDAP for querying and updating X.500 directories and use AAA for centralized authentication.

Remote Terminal Access Servers:

SSH and Telnet provide secure and unsecure remote access to command shells or graphical desktops.

Remote Desktop Protocol (RDP):

Allows remote GUI connections to Windows machines.

Network Monitoring Servers:

• Simple Network Management Protocol (SNMP): Framework for managing and monitoring network devices.

• Syslog: Facilitates log collection from various devices into a centralized storage location for efficient monitoring.