701 ports Flashcards
FTP
20/21
Port 21 is the control port while port 20 is used to transfer files.
TCP
SSH
22
Designed to transmit data through a remote connection
TCP
SSH File Transfer Protocol
22
Completely separate from FTP that uses SSH to encrypt file transfers
TCP
SMTP
25
Internet mail protocol used to send outgoing mail from clients to server
TCP
TACACS+
49
Cisco proprietary protcol used for AAA (acronym!!) services
TCP
DNS
53
Used to associate IP addresses with domain names
UDP
DHCP
67/68
Network protocol used to assign private IPs from 1 public IPv4
UDP
HTTP
80
Protocol used for websites and most internet traffic
TCP
Kerberos
88
auth protocol that allows for coms over non secure network, mostly UDP
TCP/UDP
POP
110
One way communication mail protocol between clients and servers
TCP
NTP
123
Low latency protocol for time keeping
UDP
SMB
old one
139
Windows protocol built on NetBIOS. Allows for server remote access (OLD)
UDP
IMAP
143,993
Two way mail communication between servers and clients, unlike POP
TCP
SNMP
161,162
Protocol used to monitor and manage devices on IP networks
UDP
LDAP
389
Used to manage and communicate with directories
UDP
HTTPS
443
Secure version to HTTP that uses TLS for encryption
TCP
SSTP
443
Microsoft made to replace PPTP or L2TP/IPSec. (Uses TLS)
TCP
SMB
new one
445
Windows protocol built on NetBIOS. Allows for server remote access (NEW)
TCP
IPSec using ISAKMP
500
IP sec achieved using Internet Sec. Assoc. and Key Management Protocol
UDP
SMTPS
587
Secure version of SMTP using TLS
TCP
LDAP
secure
636
Secure version of LDAP that uses TLS for encryption
TCP
FTPS
989/990
FTPS using TLS for encryption. Can run on 20/21 but sometimes on 989/990
TCP
IMAPS
993
IMAP + TLS
FTP
POP3S
995
POP + TLS
TCP
RADIUS
1812,1813
Used to provide AAA (acronym!!) for network services
RDP
3389
Windows remote connection to other computers
TCP
Diameter
3868
Developed as an upgrade to RADIUS
TCP
SRTP
5004
SRTP replaced RTP to stream A/V comms using UDP
UDP
TCP
N/A
One of two main protocols of the Internet Protocol (IP) suite used to
transmit data over an IP network. TCP provides error checking to
ensure packets are not lost in transit.
UDP
N/A
The second main protocol in the IP suite that transmits datagrams in a
best effort method. UDP does not include error checking.
PPTP
1723
Based on PPP. Deprecated protocol for VPNs
TCP
L2TP
1701
UDP
Used to create point to point connections, like VPNs over a UDP
connection. Needs IPSec for encryption. Designed as an extension to
PPTP. Operates at the data link layer but encapsulates packets at the
session layer.
PPTP
1723
UDP
Based on PPP. Deprecated protocol for VPNs
