Blackhole vs Null - What's the difference?
blackhole | null |
, especially in the attributive.
(Internet) A place where traffic is silently discarded.
(programming) A bit bucket; a place of permanent oblivion for data.
(computing) DNSBL, used to block spamming IP addresses – are often called "blackhole lists"
(Internet) A blackhole server, a DNS server that handles reverse lookups of invalid IP ranges
(management) A resource sink.
(internet) To redirect (network traffic, etc.) nowhere; to discard incoming traffic.
* 2005 , Victor Oppleman, Oliver Friedrichs, Brett Watson, Extreme exploits: advanced defenses against hardcore hacks (page 186)
A non-existent or empty value or set of values.
Zero]] quantity of [[expression, expressions; nothing.
Something that has no force or meaning.
(computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
(computing) the attribute of an entity that has no valid value.
One of the beads in nulled work.
(statistics) null hypothesis
Having no validity, "null and void"
insignificant
* 1924 , Marcel Proust, Within a Budding Grove :
absent or non-existent
(mathematics) of the null set
(mathematics) of or comprising a value of precisely zero
(genetics, of a mutation) causing a complete loss of gene function, amorphic.
As nouns the difference between blackhole and null
is that blackhole is , especially in the attributive while null is zero, nil; the cardinal number before einn.As a verb blackhole
is (internet) to redirect (network traffic, etc) nowhere; to discard incoming traffic.blackhole
English
(too many supposedly distinct senses) (Black hole)Noun
(en noun)- One way of fighting spam is to use a blackhole''' list maintained on a '''blackhole server.
Verb
(blackhol)- Select a nonglobally routed prefix, such as the Test-Net (RFC 3330) 192.0.2.0/24, to use as the next hop of any attacked prefix to be blackholed .
null
English
Noun
(en noun)- (Francis Bacon)
- Since no date of birth was entered for the patient, his age is null .
Adjective
(en adjective)- In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.