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  2. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    Just Cause 2: Multiplayer Mod Server [citation needed] Unofficial: Terraria default server Unofficial: Unofficial: Super Foosball multiplayer gameplay port Unofficial: San Andreas Multiplayer (SA-MP) default port server Unofficial: SCP: Secret Laboratory Multiplayer Server 7777–7788: Yes: Steam common default game server ports (Ark, L4D2, etc ...

  3. Blackhole server - Wikipedia

    en.wikipedia.org/wiki/Blackhole_server

    blackhole-2.iana.org (192.175.48.42) prisoner.iana.org (192.175.48.1) These servers are registered in the DNS directory as the authoritative servers for the reverse lookup zone of the 10.0.0.0 / 8, 172.16.0.0 / 12 and 192.168.0.0 / 16 addresses. These servers are configured to answer any query with a "nonexistent address" answer.

  4. Domain Name System blocklist - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System_blocklist

    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]

  5. Public recursive name server - Wikipedia

    en.wikipedia.org/wiki/Public_recursive_name_server

    A public recursive name server (also called public DNS resolver) is a name server service that networked computers may use to query the Domain Name System (DNS), the decentralized Internet naming system, in place of (or in addition to) name servers operated by the local Internet service provider (ISP) to which the devices are connected.

  6. OpenDNS - Wikipedia

    en.wikipedia.org/wiki/OpenDNS

    OpenDNS offers DNS resolution as an alternative to using Internet service providers' DNS servers or locally installed DNS servers. OpenDNS has adopted and supports the DNSCurve secure protocol. [2] OpenDNS provides the following recursive nameserver addresses [3] for public use, mapped to the nearest operational server location by anycast routing.

  7. Carrier-grade NAT - Wikipedia

    en.wikipedia.org/wiki/Carrier-grade_NAT

    Carrier-grade NAT. Carrier-grade NAT (CGN or CGNAT), also known as large-scale NAT (LSN), is a type of network address translation (NAT) used by ISPs in IPv4 network design. With CGNAT, end sites, in particular residential networks, are configured with private network addresses that are translated to public IPv4 addresses by middlebox network address translator devices embedded in the network ...

  8. Configure POP and IMAP settings for Verizon.net AOL Mail ...

    help.aol.com/articles/how-do-i-set-up-other...

    AOL.com email users - Read our help article for AOL.com port and server settings. To send and receive AOL email via a 3rd party email client, you'll need to manually configure the servers and port numbers with supported AOL Mail info. If you access AOL Mail through mail.aol.com or the AOL app you don't need to make any changes to your settings.

  9. DNS zone transfer - Wikipedia

    en.wikipedia.org/wiki/DNS_zone_transfer

    RFC 1912 (section 2.2 SOA records) recommends using the value YYYYMMDDnn as the number (YYYY=year, MM=month, DD=day, nn=revision number). This won't overflow until the year 4294. Some DNS server packages have overcome this problem by automatically constructing the serial number from the last modification timestamp of the database file on disk.