ByteByteGo

NOVEMBER 23, 2024

Live streaming is challenging because the video content is sent over the internet in near real-time. Sending a large volume of video content over the internet takes time. The streamer connects to a point-of-presence server closest to them. When a device wants to access the internet, it sends a request to your router.

IP Address 100

IP Address Routers Internet Server 100

Kentik

OCTOBER 12, 2021

Once you saw a person’s password to any given application, you knew they were generally using the same one for all of their other applications — email, the ticketing system, the FTP and Novell servers, etc. Getting all the DNS logs is often impractical. Is Google hijacking DNS with DoH? Well, that didn’t last long.

Encryption 84

Encryption DNS IP Address Protocol 84

Kentik

JANUARY 10, 2022

If you’re a person who works from home, you almost certainly have to deal with occasional internet connection issues. Domain lookup time : When a connection is made to a domain, the local operating system must first reach out to the DNS to resolve that hostname to an IP address. Where is the DNS? The HTML, the CSS, etc.

IP Address 98

IP Address DNS TCP Application 98

Kentik

DECEMBER 13, 2021

To properly monitor them, it’s paramount to find out which servers your end users are connecting to. 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. Start with the desktop.

Application 95

Application DNS Routers Server 95

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. This switch happens and is decided on the server side, not the client.

Internet 98

Internet IP Address DNS Server 98

Network Engineering

MAY 7, 2023

We would like to configure SDWAN for our branch site that only has broadband internet. Because the Public IP changes from time to time, We would like to use FQDN, and so we need to configure DDNS on the internet interface. So my question, Assuming there is no other device (router/server) that can be used as DDNS client.

Internet 52

Internet Routers Server DNS 52

Kentik

MARCH 13, 2023

How it used to be When I started my career in networking, servers were down the hall or in the campus data center. What changed Over the last 15 years, though, the quality of the public internet has improved significantly. The WAN was how we got access to some websites and sent emails. Yes, of course, I’m oversimplifying here.

WAN 98

WAN Wide Area Network Topology Internet 98

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

JANUARY 28, 2021

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 are my frequently queried domain names and talkative DNS clients?

Network 72

Network Networking DNS IP Address 72

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. During last week’s attack, the attacker was redirecting traffic that belonged to Amazon’s Route 53 DNS servers.

IP Address 49

IP Address DNS UDP port Advertising 49

Kentik

JUNE 4, 2019

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. That’s why True Origin is a major step forward for every ISP carrying a significant volume of Internet-sourced content. What is True Origin? Are more needed?

DNS 56

DNS Server Internet Network 56

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

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 business case can directly compare the saved cost and the estimated cost of space and power for the embedded servers. What is a CDN?

IP Address 52

IP Address DNS Server Network 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

The Network DNA

NOVEMBER 26, 2024

10.10.10.100 inside NDNA-ASA(config)# dhcpd dns 112.110.112.5 10.10.10.100 inside NDNA-ASA(config)# dhcpd dns 112.110.112.5 Configure an ACL to allow access to the DMZ server from the Internet NDNA-ASA(config)# access-list OUTSIDE-DMZ permit ip any host 10.10.2.3 NDNA-ASA(config)# dhcpd option 3 ip 10.10.10.1 255.255.255.0

Firewall 52

Firewall IP Address VPN Port 52

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

Kentik

JUNE 14, 2023

An engineer standing in front of a console today stares at the traffic moving from their on-prem data center up and out to a CASB, receiving DNS responses from a cloud-provided DNS service, and then on through an ephemeral microservices architecture in a public cloud. And this, of course, is just to reach the front end.

WAN 59

WAN Data Centers DNS Internet 59

NW Kings

DECEMBER 10, 2024

A TCP port is a unique number assigned to specific services and applications that run on a server. It serves as an endpoint for communication between a client and the server, allowing different communication processes over a network. TCP ports operate at the transport layer of the Internet Protocol Suite. What is a TCP Port?

UDP port 40

UDP port Port TCP IP Address 40

Kentik

DECEMBER 18, 2019

These include SNMP, DNS, RADIUS and streaming telemetry. we never initiate connections to the customers) on servers running Debian GNU/Linux. The load balancer node rewrites the source MAC of the packet and forwards the packet to the real server that’s running the BGP code. BGP routing data is another important data source.

Server 13

Server Topology TCP Network 13

CATO Networks

MAY 20, 2024

A couple phenomena of IP usage across the internet add a layer of complexity to correct identifications: Dynamic IP addresses – often used by ISPs to move an IP between customers when it is no longer in use, making it harder to track and block malicious activity effectively. and a legitimate business and economy site – s kygo.in.

IP Address 52

IP Address Server Port SMB 52

Kentik

FEBRUARY 28, 2018

In a typical deployment, memcached would be accessed only by internal application components, however, it appears that thousands of memcached instances are exposed to the Internet at large. In this way, it’s very much like DNS and NTP services that have been abused this way in the past. That makes for massive attack potential.

DNS 40

DNS Server Bandwidth Application 40

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. Cato IPS identified that the machines were communicating with a C&C server that is used to spread Andromeda bot malware.

WAN 40

WAN Wide Area Network DNS Encryption 40

Kentik

MARCH 15, 2023

These attacks typically seek out web server vulnerabilities with malformed or high-volume requests in layer 7 services. The attacker can spoof IP addresses, DNS, HTTPS headers, and more to deceive users into interacting with compromised applications. Injection attacks that use SQL inputs to alter or otherwise corrupt servers.

Network 94

Network Networking Protocol IP Address 94

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

Confluent

JULY 1, 2019

compute.internal is not resolvable from the internet, it fails. compute.amazonaws.com:9092 --topic test >> $ kafka-console-consumer --bootstrap-server ec2-54-191-84-122.us-west-2.compute.amazonaws.com:9092 For these comms, we need to use the internal IP of the EC2 machine (or hostname, if DNS is configured).

Port 101

Port IaaS DNS Network 101

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

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. However, an improved routing security mechanism to make the internet routing world safer does exist.

Routers 58

Routers Protocol Internet Advertising 58

CATO Networks

DECEMBER 13, 2021

Exploiting this vulnerability allows attackers to take control over the affected servers, and this prompted a CVSS (Common Vulnerability Scoring System) severity level of 10. To make things worse, working PoCs (Proof of Concept) are already available on the internet, making even inexperienced attackers a serious threat. hostName}.<REDACTED>

Server 52

Server DNS Internet Network 52

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

CATO Networks

JUNE 14, 2023

In most cases, these patterns are evaluated on a single network packet, rather than a sequence of flows between a client host and a server. In Figure 3 and Figure 4, we can see a packet capture of a MacBook laptop initiating a TCP connection to a remote server. In this post we will cover those that are most commonly used today.

IoT 52

IoT TCP Protocol Server 52

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

High Scalability

OCTOBER 1, 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

SEPTEMBER 17, 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

CATO Networks

NOVEMBER 18, 2018

With SD-WAN based on Internet connectivity, its up to you and your team to monitor all of the last-mile links around the globe, identify problems, and engage with local ISPs. Cato ILMM measures link connectivity and service-specific uptime using Ping, DNS, HTTP, and Traceroute. Additional services can be monitored as well.

WAN 52

WAN MPLS Routers DNS 52