Search results
Results From The WOW.Com Content Network
A Domain Name System blocklist, Domain Name System-based blackhole list, Domain Name System blacklist (DNSBL) or real-time blackhole list (RBL) is a service for operation of mail servers to perform a check via a Domain Name System (DNS) query whether a sending host's IP address is blacklisted for email spam. [1]
A DNS sinkhole, also known as a sinkhole server, Internet sinkhole, or Blackhole DNS [1] is a Domain Name System (DNS) server that has been configured to hand out non-routable addresses for a certain set of domain names. Computers that use the sinkhole fail to access the real site. [2]
A DNS-based Blackhole List (DNSBL) or Real-time Blackhole List (RBL) is a list of IP addresses published through the Internet Domain Name System (DNS) either as a zone file that can be used by DNS server software, or as a live DNS zone that can be queried in real-time.
Before 2001, the in-addr.arpa zones for the private networks [1] were delegated to a single instance of name servers, blackhole-1.iana.org and blackhole-2.iana.org, called the blackhole servers. The IANA -run servers were under increasing load from improperly-configured NAT networks, leaking out reverse DNS queries, also causing unnecessary ...
The Distributed Sender Blackhole List was a Domain Name System-based Blackhole List that listed IP addresses of insecure e-mail hosts. DSBL could be used by server administrators to tag or block e-mail messages that came from insecure servers, which is often spam .
SORBS ("Spam and Open Relay Blocking System") was a list of e-mail servers suspected of sending or relaying spam (a DNS Blackhole List).It had been augmented with complementary lists that include various other classes of hosts, allowing for customized email rejection by its users.
Real-time Blackhole List (RBL), the one for which MAPS is probably best known. Dialup Users List (DUL), blocks of addresses that include many SOHO users. Relay Spam Stopper (RSS), spam relays, e.g. hijacked servers. Open Proxy Servers (OPS), naively open SMTP servers. Non-confirming Mailing List (NML), marketers who use opt-out strategy.
In computer networking, the Composite Blocking List (CBL) is a DNS-based Blackhole List of suspected E-mail spam sending computer infections. Overview