Kentik

MAY 21, 2019

In short, the Mirai network of bots was built by malicious actors who exploited remote access and control protocol ports over many different device types, producing damaging traffic levels and creating an advanced, powerful tool that can be used for large-scale DDoS attacks and many other nefarious purposes. The Race to Stop Mirai.

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Port IP Address Internet Network 81

Kentik

JANUARY 6, 2021

The critical context that enables teams to ask questions about users, applications, and customers (and not just IP addresses and ports). Internet and broadband infrastructure : The internet itself that connects the clouds, applications, and users. API gateways for digital services.

Network 128

Network Networking Gateway Access Point 128

The Network DNA

JUNE 10, 2024

It's an essential component that keeps track of the mapping between real IP addresses and their translated (mapped) counterparts. This table is required for the firewall to maintain and translate private IP addresses to public ones, allowing communication over the internet. TCP, UDP, ICMP). Free Tools.

Firewall 52

Firewall IP Address TCP Port 52

The Network DNA

JUNE 3, 2024

The internal load balancer is assigned a private IP address from the virtual network's subnet range for the frontend and targets the private IP addresses of backend services (often Azure virtual machines). We can select options for Public IP address (new or existing), SKU, assignment, and IPv6.

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IP Address Port Protocol Virtual machine 52

NW Kings

FEBRUARY 28, 2025

It covers various essential topics, such as network fundamentals, routing and switching, IP addressing, and basic security principles. DHCP automates the process of assigning IP addresses to devices on a network. BGP is a path vector protocol used to exchange routing information between autonomous systems on the internet.

Firewall 52

Firewall IP Address Network Networking 52

Confluent

JULY 1, 2019

The actual host and IP that it will connect to for reading/writing data is based on the data that the broker passes back in that initial connection —even if it’s just a single node and the broker returned is the same as the one it’s connected to. A listener is a combination of: Host/IP. Let’s check out some config. on AWS, etc.)

Port 101

Port IaaS DNS Network 101

Kentik

JUNE 7, 2023

They capture detailed information about network traffic, including: Source and destination IP addresses Ports Protocols Packet counts By analyzing these logs, you can gain visibility into the volume, patterns, and characteristics of traffic, such as whether it’s being dropped or incorrectly routed, to identify connectivity issues.

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Cloud Gateway Port IP Address 97

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. They can then announce the routes (groups of IP addresses) that they own from their ASN.

IP Address 49

IP Address DNS UDP port Advertising 49

CloudFaire

JANUARY 2, 2025

Ingesting a broadcast Broadcasters generate content in real time, as a series of video and audio frames, and it needs to be transmitted to Cloudflare over the Internet. Broadcasters connect to an Anycast IP address using either a custom ingest domain or our default live.cloudflare.com. Lets start on the ingest side.

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Protocol Media Port IP Address 98

The Network DNA

NOVEMBER 26, 2024

Cisco ASA in a Network Configuring DHCP, AAA, and SSH NDNA-ASA(config)# dhcpd address 10.10.10.3-10.10.10.100 NDNA-ASA(config)# dhcpd option 3 ip 10.10.10.1 Configure address translation using PAT and network objects NDNA-ASA(config)# object network INSIDE-NET NDNA-ASA(config-network-object)# subnet 10.10.10.0 255.255.255.0

Firewall 52

Firewall IP Address VPN Port 52

CATO Networks

AUGUST 18, 2022

This includes elements like IP address, subnet, username, group membership, hostname, remote user, site, and more. Additionally, policy rules can be further refined based on application context including application (custom applications too), application categories, service, port range, domain name, and more.

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SASE Cloud Port Firewall 52

Kentik

MARCH 13, 2019

Distributed denial-of-service (DDoS) attacks have been a continuous threat since the advent of the commercial Internet. For destination-based RTBH, the victim’s destination IP address becomes completely unreachable. The victim can update DNS to point at a different IP address in an attempt to get their application back up.

IP Address 49

IP Address Port Routers DNS 49

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

CATO Networks

JANUARY 17, 2018

In some cases, network scanners will use port scans and in other cases ping sweeps. However, while research projects will stop at scanning Internet IP-ranges for potentially open services, malicious actors will go further and attempt to hack or even gain root privilege on remote devices. What is Network Scanning?

Network 52

Network Networking Server Port 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. Viewing by Source IP. The Filters pane expands, showing the first filter group (Group 1).

IP Address 40

IP Address Port Protocol Internet 40

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. The CDN and the ISP peers over an IXP, the volume drives port upgrades, and private connections are impossible. What is a CDN?

DNS 52

DNS IP Address Server Network 52

Kentik

DECEMBER 15, 2020

The internet is now the critical glue that connects traditional and cloud infrastructure. In order to see and reason about the network, it’s critical to gather telemetry: From all networks (cloud, data center, WAN, SD-WAN, internet, mobile, branch, and edge). Telemetry Requirements to Support Network Observability.

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Network Networking DevOps Application 94

CATO Networks

FEBRUARY 26, 2020

However, the dynamic nature of cloud computing, the security challenges posed by mobile users , and IoT (Internet of Things) have blurred the lines that define network perimeters and created new attack surfaces. Secure Web Gateway SWG helps mitigate social engineering attacks like phishing and protects against Internet-borne malware.

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Network Security Network Networking UDP port 52

CATO Networks

JULY 18, 2018

Legacy networks route traffic based on IP address or subnet, information that bears little resemblance to the business. Using the robust DPI engine underlying Cato Cloud, were able to detect and classify hundreds of SaaS and datacenter applications regardless of port, protocol, or evasive technique and without SSL inspection.

WAN 52

WAN IP Address MPLS Financial 52

CATO Networks

SEPTEMBER 2, 2021

ZTE Zero Trust Edge (ZTE) is Forresters version of SASE and uses ZTNA to provide a more secure Internet on-ramp for remote sites and workers. In addition to generating alerts, like an intrusion detection system (IDS) would, an IPS can update firewall rules or take other actions to block malicious traffic.

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SASE Firewall IP Address VPN 52

Kentik

FEBRUARY 8, 2016

Designed before the dawn of the commercial Internet, the Border Gateway Protocol (BGP) is a policy-based routing protocol that has long been an established part of the Internet infrastructure. Why is an understanding of BGP helpful in understanding Internet connectivity and interconnectivity? One or multiple border routers.

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Advertising Routers Internet Protocol 49

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. Here is how you would do it- Router1(config)# ip route 192.168.2.0

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Routers IP Address Protocol Topology 52

CATO Networks

MAY 20, 2020

They also extend beyond the walls of corporate offices and datacenters out to cloud datacenters and anywhere an employee has a smart device with Internet access. NGFWs can drill down beyond IP addresses, TCP/UDP ports, and network protocols to enforce policies based on packet content.

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Network Security Network Networking UDP port 52

Kentik

JUNE 6, 2016

And yet, “I don’t know” is an answer that many MSPs must currently give to one of the most common client questions of all: Why is my Internet slow? For example, you might see that a client’s daily peak Internet usage is 20MBps and it’s choking the network. But those analytics can’t immediately tell you who’s using those IP addresses.

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Network Networking IP Address Bandwidth 40

CATO Networks

DECEMBER 17, 2019

They could effectively block ports, isolate network segments, and enable basic enforcement of security policies. Packet-filtering firewalls Traditional firewalls that block traffic at the protocol, port, or IP address levels. Traditionally, firewalls were used to block or allow network traffic based on predefined rules.

Firewall 52

Firewall Network Networking SASE 52

Kentik

DECEMBER 5, 2016

In the Filters pane, we filtered to show only dest port 179 (BGP). In the Devices pane we chose any devices that could be sending traffic to the destination IPs in question. In the table’s “key” column (at left) we see the IP addresses of those elements along with their corresponding hostnames (also anonymized).

Network 40

Network Networking TCP IP Address 40

NW Kings

JANUARY 4, 2025

At Network Kings, you will learn networking concepts (routing, switching, IP addressing) and basic network security fundamentalssuch as how to block websites and manage port numbers. Understanding the OSI model and routing protocols is crucial; because routing is the backbone of internet connectivity.

Engineering 52

Engineering Network Networking Data Centers 52

Kentik

OCTOBER 30, 2017

In Data Explorer, we built a query, using the time range of the incident, with “Full Device” as the group-by dimension, and we filtered the query down to the IP address for gcr.io. some kind of digital currency mining, and it was traversing the same Internet transit as our production network!

Port 40

Port DevOps IP Address Network 40

Kentik

JUNE 30, 2015

Were our servers talking to each other on weird ports? I was young, I was new to the networking world, and everyone was new to the Internet. Who’s transferring data with our servers that shouldn’t be? Were we under attack? Were we compromised? Should we interconnect with a local competing ISP?

Routers 40

Routers Port Server IP Address 40

Kentik

MARCH 6, 2019

In the Kubernetes networking model, in order to reduce complexity and make app porting seamless, a few rules are enforced as fundamental requirements : Containers can communicate with all other containers without NAT. The IP that a container sees itself as is the same IP that others see it as.

Network 63

Network Networking Application Cloud 63

Kentik

DECEMBER 18, 2018

The Sunburst diagram on the right shows how top GCP instances are serving traffic out to the Internet with an interactive breakdown showing source ports that you’re delivering services from, the machine or machines hosting that service, followed by the zone, subnet, destination ASNs, and even top destination IPs that are consuming those services.

Cloud 45

Cloud Port Network Networking 45

Kentik

APRIL 24, 2017

In this post we’ll take a new look, focusing instead on use cases and bandwidths that are more representative of — and relevant to — large internet edge and datacenter operations. Historically, however, most of the testing, opinion, and coverage has been based on enterprise use cases and fairly low-bandwidth assumptions.

Protocol 40

Protocol Routers Bandwidth Internet 40

CATO Networks

MARCH 14, 2021

Direct Internet access (DIA) is enabled as well. Among the full stack of security detection tools provided by Cato are: Next Generation Firewall (NGFW) The Cato NGFW inspects both WAN and Internet traffic. In addition, custom application definitions identify account-specific applications by port, IP address or domain.

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Digital Transformation Network Security Network Networking 40

CATO Networks

NOVEMBER 20, 2019

Internet browsers usually have a clear and standard headers image. We have also observed known malware samples using proprietary unknown protocols over known ports and such could be flagged using application identification. This could be harmful for the target being scanned and puts the organization IP address reputation at risk.

Network 52

Network Networking Protocol IP Address 52

Network Engineering

JANUARY 27, 2022

The scenario is: We have a customer with a PtP Ethernet link handed off to a VLAN on our side, which we provide internet for. The VRF will still need to have a default route for internet access, and I suppose the global table will need a route for the internet WAN IP. This is what I've done in GNS3. 84 bytes from 8.8.8.8

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Routers Unicast VPN IP Address 130

CloudFaire

JANUARY 28, 2025

The breadth of both our network and our customer base provides us with a unique perspective on Internet resilience, enabling us to observe the impact of Internet disruptions at both a local and national level, as well as at a network level. Violent storms and an earthquake predictably caused Internet outages in the affected countries.

Internet 94

Internet Networking Network IP Address 94

Kentik

MAY 17, 2021

Internal communications routed over internet gateways and driving up costs. Abandoned gateways and subnets configured with overlapping IP space. And it’s not like the network teams had to worry about fixing failed line cards or erroring ports. to the raw source and destination IP addresses in your VPCs.

Cloud 52

Cloud Network Networking Gateway 52