PASV

E845079

PASV is an FTP command that enables passive mode, instructing the server to open a port and wait for the client to initiate the data connection.

All labels observed (1)

Label Occurrences
PASV canonical 1

How this entity was disambiguated

Statements (46)

Predicate Object
instanceOf FTP command ⓘ
alternativeTo active FTP mode ⓘ
category FTP control command ⓘ
commandDirection client-to-server ⓘ
commandSyntax PASV\r\n ⓘ
commonlySupportedBy FTP clients ⓘ
FTP servers ⓘ
contrastsWith PORT ⓘ
active mode ⓘ
dataConnectionRoleOfClient connector ⓘ
dataConnectionRoleOfServer listener ⓘ
dataPortOpenedBy FTP server ⓘ
definedIn FTP specification ⓘ
RFC 959 ⓘ
fullName Passive mode command ⓘ
improves NAT traversal ⓘ
firewall compatibility ⓘ
initiatorOfDataConnection FTP client ⓘ
introducedFor better operation behind client-side firewalls ⓘ
layer application layer ⓘ
modeType passive mode ⓘ
oftenUsedWith LIST ⓘ
RETR ⓘ
STOR ⓘ
operatesOn FTP control channel ⓘ
portSelection server chooses ephemeral port ⓘ
precedes FTP data transfer commands ⓘ
primaryPurpose allow client-initiated data connections ⓘ
enable passive data connections ⓘ
relatedCommand EPSV ⓘ
LPSV ⓘ
requires separate control connection ⓘ
requiresClient to open outbound TCP connection to server data port ⓘ
responseCode 227 ⓘ
responseFormat 227 Entering Passive Mode (h1,h2,h3,h4,p1,p2) ⓘ
responseIncludes server IP address ⓘ
server port number ⓘ
securityConsideration may expose additional server ports ⓘ
status standard FTP command ⓘ
transportProtocol TCP ⓘ
typicalUseCase FTP through NAT routers ⓘ
FTP through firewalls ⓘ
usedFor FTP data channel ⓘ
directory listings ⓘ
file transfers ⓘ
usedInProtocol File Transfer Protocol ⓘ
linked to: FTP

How these facts were elicited

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

RFC 959 → definesCommand → PASV ⓘ