Networking Flashcards
What port does netbios name services use?
Port 137
What port does NETBIOS Datagram Service use?
port 138
What port does Netbios-ssn NETBIOS Session Service use?
port 139
What ports does smb v1 use?
Port 139 legacy and newer versions 445
What port does smb v2 use?
port 445
What port does pptp use?
1723
what 2 ports does ftp use?
data 20
command 21
what is msrpc port?
135
rpc bind port?
111
imaps port?
993
pop3s port?
995
tcp/ip 4 layers
application
transport
internet
network access
ports used by ipsec?
500
what does authentication header (ah) provide in IPSEC?
authentication and integrity
what doesn’t ah provide in ipsec?
no encryption
what does encapsulating secure payload ESP provide in IPSEC?
confidentiality along with optional integrity checking (ICV)
what is port security?
makes switch only allow certain amount of device on port
what is 802.1x?
protocol for port based authentication
what is used for authentication in 802.1x?
EAP-TLS
besides port security where else is 802.1x used?
WIFI
what is a supplicant in 802.1x?
client such as laptop
what is the authenticator in 802.1x?
device such as switch or wifi access point
what is the authentication server in 802.1x?
either radius or tacacs+ server
ports used by tacacs+
tcp 49
ports used by radius for authent and authorization
udp 1812
ports used for radius accounting
udp 1813
why is tacacs better than radius?
encrypts aaa whole packet not just authentication
why is chap better than pap?
adds challenge response and hashing
what port does ldap use?
389
