Kentik

AUGUST 3, 2021

For example, some DevOps teams feel that AWS is more ideal for infrastructure services such as DNS services and load balancing. Cloud does not equal internet. In both hybrid and multi-cloud configurations, all of the customer data stays private and cannot be accessed via the internet unless the network team chooses to do so.

Cloud 124

Cloud Network Networking Gateway 124

Kentik

OCTOBER 12, 2021

When companies started outsourcing the hosting of their websites to the likes of Akamai and AWS, network teams learned quickly that many work- and non-work related applications shared the same IP address. Getting all the DNS logs is often impractical. Is Google hijacking DNS with DoH? What is NPM?

Encryption 84

Encryption DNS IP Address Protocol 84

Kentik

AUGUST 21, 2017

Dashboards for DNS Metrics Reveal Issues With Your Infrastructure. Working behind the scenes, Domain Name Server (DNS) is often overlooked, but it’s one of the most critical pieces of the Internet infrastructure. That point was driven home by the Mirai DDoS attack last October against the DNS infrastructure of Dyn, Inc.

DNS 40

DNS Server IP Address Ethernet 40

Kentik

JANUARY 28, 2021

Who did this IP address talk to? While synthetics can be triggered or collected via device telemetry interfaces, they are actually a broader category spanning client and server endpoints, network elements, and internet-wide locations performing network and application-layer testing. What IP addresses were affected?”

Network 72

Network Networking DNS IP Address 72

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

DECEMBER 13, 2021

Chrome, Internet Explorer, Firefox, Opera). This is sort of a long shot, but are you using a corporate DNS server? You might try temporarily switching to a public DNS like Google’s 8.8.8.8. DNS lookups can introduce significant latency on new connections. Start with the desktop. Notice the arrow above in red.

Application 95

Application DNS Routers Server 95

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

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. What is synthetic monitoring?

TCP 116

TCP Routers Bandwidth IP Address 116

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

Engineering at Meta

MAY 3, 2023

We’re sharing our latest threat research and technical analysis into persistent malware campaigns targeting businesses across the internet, including threat indicators to help raise our industry’s collective defenses across the internet. For more security tips, visit our Newsroom.

Cookie 116

Cookie Internet JavaScript Media 116

Kentik

MAY 8, 2023

Additional network resilience mechanisms Successfully routing a packet over the internet from its source to its destination is not trivial. TCP/IP is one of the fundamental networking protocols and the basis for common protocols like HTTP. This way, if one IP address fails, traffic can be routed to another to maintain service levels.

Network 52

Network Networking IP Address TCP 52

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

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 10.10.10.100 inside NDNA-ASA(config)# dhcpd dns 112.110.112.5 NDNA-ASA(config)# dhcpd option 3 ip 10.10.10.1 Cisco ASA in a Network Configuring DHCP, AAA, and SSH NDNA-ASA(config)# dhcpd address 10.10.10.3-10.10.10.100

Firewall 52

Firewall IP Address VPN Port 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

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. These caches often use address space originating in the ISP’s ASN and not in the CDN’s. What is a CDN? Who are the players?

Network 52

Network Networking DNS IP Address 52

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

The Network DNA

JULY 9, 2024

255.255.255.252 C8000-NDNA(config-if)# no ip redirects C8000-NDNA(config-if)# ip tcp adjust-mss 1360 C8000-NDNA(config-if)# arp timeout 1200 C8000-NDNA(config-if)# exit C8000-NDNA(config)# ip route 0.0.0.0 x Free Tools.

Routers 52

Routers IP Address MPLS WAN 52

Kentik

JUNE 4, 2019

In the sections that follow we’ll explain what True Origin is, what operational needs it addresses, how it works, and the steps involved in putting it to use. By the end of this post you should have a pretty good idea of how True Origin helps network operations and engineering, particularly for Internet Service Providers.

DNS 56

DNS Server Internet Network 56

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 the role of IP address and port number?

UDP port 40

UDP port Port TCP IP Address 40

CATO Networks

JUNE 23, 2019

The infamous malware that crippled global DNS provider Dyn, French Web host OVH and security journalist Brain Krebs Web site with botnets of infected home routers, baby monitors and other IoT devices is now infecting enterprise network equipment, according to a recent Palo Alto Networks blog and Network Computing article.

IoT 52

IoT WAN Routers IP Address 52

Kentik

MARCH 15, 2023

The attacker can spoof IP addresses, DNS, HTTPS headers, and more to deceive users into interacting with compromised applications. BGP hijacking has increasingly become a concern, as they cause changes to the routing of the internet’s autonomous systems and can cause severe disruption to a web application’s internet traffic.

Network 94

Network Networking Protocol IP Address 94

Confluent

JULY 1, 2019

are shown indented in the following list: KAFKA_LISTENERS is a comma-separated list of listeners and the host/IP and port to which Kafka binds to for listening. For more complex networking, this might be an IP address associated with a given network interface on a machine. Since ip-172-31-18-160.us-west-2.compute.internal

Port 101

Port IaaS DNS Network 101

CATO Networks

AUGUST 26, 2019

In one form or another the question: how can SD-WAN deliver the same reliability and redundancy as MPLS when it uses the public Internet? SD-WAN + public Internet alone cant. This allows enterprises to layer in inexpensive Internet connections for resiliency affordable enough for even small locations. My response? The result?

MPLS 52

MPLS WAN IP Address Internet 52

CATO Networks

JANUARY 5, 2021

Jerry shows how easy it is when you use the right DNS settings, making sure that access is enforced correctly, unaffected by IP address changes. Watch as he defines ZTNA to specific hosts, applications, and users and demonstrates how access events are recorded and audited.

SASE 52

SASE Engineering Bandwidth WAN 52

CATO Networks

JULY 31, 2017

Advanced Security Everywhere: Internet and wide area network (WAN) traffic is scanned and protected for all branch offices and mobile users regardless of location. Unlimited Inspection Capacity: The Cato IPS has no capacity constraints, inspecting all traffic, including TLS traffic, today and in the future.

WAN 40

WAN Wide Area Network DNS Encryption 40

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

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

High Scalability

NOVEMBER 12, 2019

Grokking the System Design Interview is a popular course on Educative.io (taken by 20,000+ people) that's widely considered the best System Design interview resource on the Internet. PerfOps is a data platform that digests real-time performance data for CDN and DNS providers as measured by real users worldwide.

Education 9

Education Advertising JavaScript Server 9

High Scalability

OCTOBER 15, 2019

Grokking the System Design Interview is a popular course on Educative.io (taken by 20,000+ people) that's widely considered the best System Design interview resource on the Internet. PerfOps is a data platform that digests real-time performance data for CDN and DNS providers as measured by real users worldwide.

Education 8

Education Advertising JavaScript Server 8

High Scalability

OCTOBER 29, 2019

Grokking the System Design Interview is a popular course on Educative.io (taken by 20,000+ people) that's widely considered the best System Design interview resource on the Internet. PerfOps is a data platform that digests real-time performance data for CDN and DNS providers as measured by real users worldwide.

Education 8

Education Advertising JavaScript Server 8

Kentik

NOVEMBER 14, 2016

Now that it’s apparent that neglect of basic security has created so many Internet vulnerabilities, we can expect attackers to be like producers rushing to emulate hit shows. During the attack, we were live with customers who could observe spikes of DNS traffic going out-of or through their networks but saw no reason to do anything about it.

IoT 40

IoT Internet IP Address DNS 40

Kentik

FEBRUARY 22, 2018

[vc_row][vc_column][vc_column_text] The Internet of Things (IoT) represents a massive threat to network infrastructure as already seen in widely publicized IoT-based DDoS attacks. Another Mirai botnet variant was used in extortion attacks against a number of banks and Internet service providers in the United Kingdom and Germany.

IoT 40

IoT Advertising Internet Network 40

High Scalability

JULY 19, 2019

Grokking the System Design Interview is a popular course on Educative.io (taken by 20,000+ people) that's widely considered the best System Design interview resource on the Internet. PerfOps is a data platform that digests real-time performance data for CDN and DNS providers as measured by real users worldwide.

Education 9

Education Advertising Server Engineering 9

High Scalability

AUGUST 20, 2019

Grokking the System Design Interview is a popular course on Educative.io (taken by 20,000+ people) that's widely considered the best System Design interview resource on the Internet. PerfOps is a data platform that digests real-time performance data for CDN and DNS providers as measured by real users worldwide.

Education 8

Education Advertising Server Engineering 8

High Scalability

AUGUST 6, 2019

Grokking the System Design Interview is a popular course on Educative.io (taken by 20,000+ people) that's widely considered the best System Design interview resource on the Internet. PerfOps is a data platform that digests real-time performance data for CDN and DNS providers as measured by real users worldwide.

Education 8

Education Advertising Server Engineering 8

Kentik

JULY 19, 2021

network, DNS, HTTP, web, etc.), IP address, server, host, web page, etc.), If there is one thing that those four shifts have in common, it is an increased dependence on the network and the general internet in order to achieve their objective. Logging into an application. Checking out a shopping cart.

Application 64

Application Network Networking IP Address 64

High Scalability

SEPTEMBER 3, 2019

Grokking the System Design Interview is a popular course on Educative.io (taken by 20,000+ people) that's widely considered the best System Design interview resource on the Internet. PerfOps is a data platform that digests real-time performance data for CDN and DNS providers as measured by real users worldwide.

Education 8

Education Advertising Server Engineering 8