CAMP 6 Flashcards
fileshare
server disk configures to allow access over a network.
SMB or (CIFS)
Server message block: application/client-server communication protocol. underpinning file and printer sharing on windows networks (also serial ports and and other resources) [ over TCP/445 port]
CIFS -other name: common internet file system.
SMB3
current version of server message block as sMB1 had security vulnerabilities.
Samba
software suite supporting SMB and NAS to Linux and UNIX systems
NetBIOS
network basic input/output system: early windows network proprietary stack. Address one another by name to establish session. changed to work over TCP/IP (NetBT)
— Other functions operate better and provide more security so should be disabled
what ports does NetBIOS use
NetBT
UDP/137 for name services
TCP/139 for session services
FTP
allows upload and download of files from network server.
TCP/21 establish a connection
TCP 20 to transfer data in active mode or server assigned passive port.
TLS
Transport layer security: developed from SSL (secure locket layer) ratified as standard by IETF. when used with HTTP it becomes HTTPS. port 443. can also secure FTP, POP3, SMTP, LDAP
Certificate
installed to a web server using encrypted data to validate identity indoor to implement HTTPS
What are the certificate keys?
[2] - one is public provided to clients via the digital certificate. even if the public key is know, traffic between a client and host cannot be decrypted without the servers private key
SMTP
specifies how mail is delivered.
TCP/25 message relay between servers or MTA (message transfer agents) - unsecure
TCP/587 mail clients use (message submission agents MSAs)to submit for delivery
POP
post office control: mailbox access protocol when receiving mail from a client->mail server. Downloads messages from server then are deleted unless a certain client specifies otherwise.
POP3 ports
TCP 110
TCP 995 secure port
IMAP
internet message access protocol: mail retrieval protocol. supports permanent connections, to server and connecting multiple clients to manage mailbox. allow control over folder an deletion
IMAP ports
TCP 143
TCP 993 secure
AAA server
manages network authentication from devices requests from different devices (NAS, AP, switches, etc.)
allows network appliances to not require storing credentials. forward request to the server.
Implemented as Remote authentication dial-in User Service [RADIUS])
remote terminal server
allows host to accept connection to its command shell or GUI from remote network.
terminal emulator
software that replicates TTY input output function. connects to terminal shells of a host over the network.
Simple Network Management protocol (SMNP)
Proxy server
can function as a tool like NAT to translate IP addresses. and mediates traffic from and to a client.
UTM
unified threat management enforces security policies and is centralizes threat management
load balenced
distributes client requests across server nodes when multiple servers are present. its the front end device, the service address is advertised and as a virtual server.
embedded system
electronic device designed to perform a specific, dedicated function [print server]
operational technology (OT)
embedded system network
supervisory control and data acquisition (SCADA)
large scale server with multiple-site ICSs (industrial control systems).