Engineering at Meta

MAY 22, 2024

Today, the internet (like most digital infrastructure in general) relies heavily on the security offered by public-key cryptosystems such as RSA, Diffie-Hellman (DH), and elliptic curve cryptography (ECC). But the advent of quantum computers has raised real questions about the long-term privacy of data exchanged over the internet.

TCP 119

TCP Encryption Server Bandwidth 119

Kentik

JULY 8, 2019

Border Gateway Protocol (more commonly known as BGP ) is the routing protocol that makes the internet work. Time and time again, this resulted in a “BGP prefix hijack,” where, in many cases, part of the internet was unreachable. In this case it was due to more specific prefixes that should not have been advertised.

Routers 58

Routers Protocol Internet Advertising 58

Kentik

JULY 25, 2016

More Basics: Advertising, Homing, and Cardinal Sins. In part 1 of this series, we established that BGP is the protocol used to route traffic across the interconnected Autonomous Systems (AS) that make up the Internet. Advertising Routes. For example, if you advertise 192.204.4.0/24

Advertising 40

Advertising Internet Routers Protocol 40

Kentik

MAY 2, 2018

In simple terms, Border Gateway Protocol (BGP) is the protocol that routes traffic on the Internet. Each BGP speaking organization is assigned an Autonomous System Number (ASN) that identifies them on the Internet. Here we have the DNS clients sending their DNS queries to the hijacked blocks advertised by AS10297.

IP Address 49

IP Address DNS UDP port Advertising 49

CATO Networks

AUGUST 17, 2021

By choosing the best available path, SD-WAN provides better performance and reliability than broadband Internet. Keep in mind however, that unless SD-WAN is deployed as part of SASE, it cant support global connectivity, network optimization, WAN and Internet security, cloud acceleration, and remote users.

Networking 52

Networking Network NaaS SASE 52

Rule 11

NOVEMBER 1, 2024

The Regional Internet Registries (RIRs) together ensure the stability of the Internet Numbers Registry System. Which protocols are used? As I suspected, its a bit more complex than just seeing a single known protocol like HTTPS. What happens on the network if youre joining a Microsoft Active Directory domain?

Encryption 40

Encryption Protocol Internet Advertising 40

NW Kings

JANUARY 7, 2025

Unlike dynamic routes, learned through dynamic routing protocols such as OSPF (Open Shortest Path First) or EIGRP (Enhanced Interior Gateway Routing Protocol), static routes require the network administrator to specify the next hop or destination IP address. What is a Static Route? What are the disadvantages of dynamic routing?

Routers 52

Routers IP Address Protocol Topology 52

CATO Networks

MAY 7, 2024

Telltale threat indicators are often available but spread across the threat information and network activity of inbound (and outbound) internet traffic, WAN traffic, cloud traffic, and remote user traffic. We spotted advertisements for services for generating fake credentials and creating deep fakes. Beware of where you shop.

SASE 52

SASE DNS Real Estate SMB 52

Confluent

JULY 1, 2019

KAFKA_LISTENER_SECURITY_PROTOCOL_MAP defines key/value pairs for the security protocol to use per listener name. compute.internal is not resolvable from the internet, it fails. The existing listener, called PLAINTEXT , just needs overriding to set the advertised hostname (i.e., A listener is a combination of: Host/IP.

Port 101

Port IaaS DNS Networking 101

Kentik

AUGUST 1, 2016

In particular we’ve learned that speaking or advertising BGP to your service providers and/or peers lets you do two things: Make semi-intelligent routing decisions concerning the best path for a particular route to take outbound from your network (otherwise you would simply set a default route from your border routers into your service providers).

Routers 40

Routers Advertising IP Address Ethernet 40

Kentik

MARCH 13, 2019

Distributed denial-of-service (DDoS) attacks have been a continuous threat since the advent of the commercial Internet. These attributes are added to the NLRI field within the BGP Update Message that’s advertised to peers and define the particular traffic that the Flowspec route will match. IP Protocol. Destination Prefix.

IP Address 49

IP Address Port Routers DNS 49

Kentik

JUNE 5, 2023

In the summer of 2022, I joined a team of BGP experts organized by the Broadband Internet Technical Advisory Group (BITAG) to draft a comprehensive report covering the security of the internet’s routing infrastructure. Below is an edited version of my take on the internet’s most notable BGP incidents.

IP Address 145

IP Address DNS Internet Routers 145

Kentik

APRIL 24, 2021

According to data available from University of Oregon’s Routeviews project, one of the very first BGP messages from AS8003 to the internet was: TIME: 01/20/21 16:57:35 TYPE: BGP4MP/MESSAGE/Update FROM: 62.115.128.183 AS1299 TO: 128.223.51.15 announced by the DoD on the internet). 8 among other large DoD IPv4 ranges.

Internet 145

Internet IP Address Protocol Advertising 145

CloudFaire

JANUARY 21, 2025

This extensive infrastructure and customer base uniquely positions us to provide key insights and trends that benefit the wider Internet community. There's also a free API for those interested in investigating these and other Internet trends. The BitTorrent protocol is a communication protocol used for peer-to-peer file sharing.

IP Address 121

IP Address Networking Network Server 121