Secure Comms
This replacement to the port 23 service is for securely operating network services over port 22.
What is SSH?
The standard alternate port to this service is 8080?
What is HTTP?
The standard port for this service is 25.
What is SMTP?
A VPN using this port 443 service creates an encrypted connection.
What is SSL/TLS?
This service makes resources available using ports 20 & 21?
What is FTP?
This secure service manages incoming data over TCP port 993.
What is IMAP4?
This service on port 53 makes it possible for you to remember website names instead of numbers.
What is DNS?
This port 110 service downloads, & then deletes, emails from a server.
What is POP3?
Used in VPNs, this service over port 50 has 2 modes of operation: transport & tunnel.
What is IPSec?
Using port 49, this Kerberos alternative is a remote authentication protocol that must implement transmission control.
What is TACACS+?
A standard alternate port for this application layer service is 8443.
What is HTTPS?
This service using ports 161 & 162 is mainly used to monitor network devices.
What is SNMP?
This port 143 service offers more options than the alternative.
What is IMAP?
Originally implemented as a Windows 95 protocol, this increasingly obsolete service runs on port 1723 & creates VPNs.
What is PPTP?
This directory service over 636 can be used to connect to servers to validate users.
What is LDAPS?
This file transfer protocol uses port 22 & does not use SSL/TLS.
What is SFTP?
A server offering this service connects to port 67 on a client.
What is DHCP?
TCP port 995 is the standard port for this message service.
What is POP3S?
IPSec uses this protocol, which is part of IKE & defines the security attributes of the connection over port 500.
What is ISAKMP?
This AAA protocol over 1812 (or 1645) & 1813 (or 1646) gives control over who connects to the network.
What is RADIUS?
This port 990 service adds a layer of encryption to data instead of full encryption.
What is FTPS?
Using port 123 & this service, computers' clocks on a network are synchronized.
What is NTP?
STARTTLS is a command used to initiate this service on port 587.
What is SMTPS?
This protocol over port 1701 is an extension to port 1723's service.
What is L2TP?
Clients seeking information connect to this port 119 service that is sometimes confused with port 123's standard service.
What is NNTP?