SNI
E258091
SNI (Server Name Indication) is a TLS extension that allows a client to specify the hostname it is trying to connect to so that the server can present the correct SSL/TLS certificate for virtual hosting.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Server Name Indication | 2 |
| SNI canonical | 1 |
| SNI (Server Name Indication) | 1 |
| SNI extension | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2359740 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SNI Context triple: [RFC 3546, defines, SNI]
-
A.
NSS
The National Security Strategy of the United States (NSS) is a periodic policy document that outlines the U.S. government's overarching national security priorities, objectives, and approaches to global challenges.
-
B.
NGI
NGI (Next Generation Identification) is the FBI’s advanced biometric identification system that expands and modernizes fingerprint and related data services for law enforcement and national security.
-
C.
SIF
SIF is the governing body for ice hockey in Sweden, overseeing the national teams and domestic competitions.
-
D.
NIS
NIS (Network Information Service) is a client-server directory service protocol developed by Sun Microsystems to centrally manage and distribute system configuration data such as user and host information across Unix networks.
-
E.
SNIP
SNIP (Source Normalized Impact per Paper) is a bibliometric indicator that measures a journal’s contextual citation impact by accounting for differences in citation practices across scientific fields.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SNI Target entity description: SNI (Server Name Indication) is a TLS extension that allows a client to specify the hostname it is trying to connect to so that the server can present the correct SSL/TLS certificate for virtual hosting.
-
A.
NSS
The National Security Strategy of the United States (NSS) is a periodic policy document that outlines the U.S. government's overarching national security priorities, objectives, and approaches to global challenges.
-
B.
NGI
NGI (Next Generation Identification) is the FBI’s advanced biometric identification system that expands and modernizes fingerprint and related data services for law enforcement and national security.
-
C.
SIF
SIF is the governing body for ice hockey in Sweden, overseeing the national teams and domestic competitions.
-
D.
NIS
NIS (Network Information Service) is a client-server directory service protocol developed by Sun Microsystems to centrally manage and distribute system configuration data such as user and host information across Unix networks.
-
E.
SNIP
SNIP (Source Normalized Impact per Paper) is a bibliometric indicator that measures a journal’s contextual citation impact by accounting for differences in citation practices across scientific fields.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
TLS extension
ⓘ
network protocol feature ⓘ |
| abbreviationOf |
SNI
self-linksurface differs
ⓘ
surface form:
Server Name Indication
|
| allows |
server to choose certificate based on requested hostname
ⓘ
server to choose virtual host configuration ⓘ |
| backwardsCompatibility | ignored by servers that do not support it ⓘ |
| carriedIn | ClientHello message ⓘ |
| category |
Internet standard
ⓘ
security protocol extension ⓘ |
| definedIn | RFC 6066 ⓘ |
| enables |
multiple HTTPS sites on a single IP address
ⓘ
selection of correct TLS certificate for a given hostname ⓘ virtual hosting with TLS ⓘ |
| extensionTypeCode | 0 ⓘ |
| fieldType | TLS extension field ⓘ |
| fullName |
SNI
self-linksurface differs
ⓘ
surface form:
Server Name Indication
|
| introducedIn | TLS 1.0 era ⓘ |
| layer | transport layer ⓘ |
| partOf |
TLS
ⓘ
surface form:
Transport Layer Security
|
| purpose |
allow client to indicate the hostname it is connecting to
ⓘ
support name-based virtual hosting over TLS ⓘ |
| relatedTo |
ALPN
ⓘ
Encrypted Client Hello ⓘ name-based virtual hosting ⓘ |
| requiredFor | hosting multiple domains on one IP with HTTPS ⓘ |
| securityConcern | leaks destination hostname to network observers ⓘ |
| standardizedBy |
Internet Engineering Task Force
ⓘ
surface form:
IETF
|
| status | widely deployed ⓘ |
| supportedBy |
TLS 1.0
ⓘ
TLS 1.1 ⓘ TLS 1.2 ⓘ RFC 8446 ⓘ
surface form:
TLS 1.3
|
| usedBy |
TLS client libraries
ⓘ
content delivery networks ⓘ load balancers ⓘ reverse proxies ⓘ web browsers ⓘ |
| usedIn |
HTTP/2
ⓘ
HTTP/3 ⓘ HTTPS ⓘ IMAP over TLS ⓘ POP3 over TLS ⓘ SMTP Service Extension for Secure SMTP over Transport Layer Security ⓘ
surface form:
SMTP over TLS
STARTTLS ⓘ TLS handshake ⓘ |
| visibility |
can be encrypted using Encrypted Client Hello in TLS 1.3 extensions
ⓘ
sent in cleartext in TLS 1.2 and earlier ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: SNI Description of subject: SNI (Server Name Indication) is a TLS extension that allows a client to specify the hostname it is trying to connect to so that the server can present the correct SSL/TLS certificate for virtual hosting.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Server Name Indication
this entity surface form:
SNI (Server Name Indication)