Kentik

OCTOBER 6, 2017

And Google disclosed seven vulnerabilities in DNS’ Dnsmasq software. Yet More DNS and DHCP Vulnerabilities (Google Blog). Google security engineers found “seven vulnerabilities including three potential remote code executions, one information leak, and three denial of service vulnerabilities” in the software.

DNS 40

DNS Internet Network Networking 40

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

Kentik

OCTOBER 12, 2021

Some NPM vendors started pairing DNS lookup records with flow data in order to separate business applications from non-business applications hosted on the same IP address. The problem is that many companies have several DNS servers spread out in far-reaching locations, and not all DNS vendors allow access to the logs.

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Encryption DNS IP Address Protocol 84

AWS Architecture

NOVEMBER 11, 2024

It is specifically focused on managing DNS routing and traffic management during failover and recovery operation; however, some customers decide to implement their own strategies for application recovery. This async replication is implemented for each of the company’s database engines (DB2, SQLServer, Oracle) using native tooling.

Insurance 122

Insurance Application DNS Server 122

ByteByteGo

JANUARY 25, 2025

The zero flakes guarantee cuts out false alarms and wasted engineering hours. After DNS resolution, the requests reach the app servers. QA Wolf covers 80% of your web and mobile app with automated tests in just four months, then maintains and updates them 24/7. Unlimited parallel test runs validate every change in minutes, not days.

Cookie 173

Cookie Gateway Server Application 173

Kentik

OCTOBER 4, 2021

According to a statement published last night, Facebook Engineering wrote, “Configuration changes on the backbone routers that coordinate network traffic between our data centers caused issues that interrupted this communication.” So what happened? billion users attempting in vain to reconnect to their services.

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TCP DNS Server Media 145

Packet Pushers

JUNE 13, 2024

If you dont blame destination unreachable messages on DNS servers, are you even a real network engineer? Read more » If you dont blame destination unreachable messages on DNS servers, are you even a real network engineer? He walks us through identifying possible. He walks us through identifying possible.

DNS 52

DNS Network Networking Server 52

Kentik

NOVEMBER 17, 2021

Kentik’s OTT Service Tracking (part of Kentik Service Provider Analytics) combines DNS queries with NetFlow to allow a user to understand exactly how OTT services are being delivered — an invaluable capability when trying to determine what is responsible for the latest traffic surge. OTT Service Tracking.

DNS 99

DNS Port Routers Network 99

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

Wahl Network

APRIL 25, 2024

In Platform Engineering with Vending Machines, Contracts, and Pipelines , I state that “building a platform capable of scale means planning for scale in the first place.” Can a new engineer learn your platform in an hour, a day, a week, or does it take longer? DNS is another great example of this.

Engineering 52

Engineering Application Port PaaS 52

Network Engineering

JANUARY 7, 2025

On the domain's DNS, I have The MX record with the SES inbound point. I have DNS on for a client email service. I have domain level verification. Sending emails is fine. I'm trying to get inbound emails. Both the SES and email client MX records are on the root domain (@).

DNS 52

DNS Email 52

ByteByteGo

NOVEMBER 23, 2024

📅 Meet your EOY deadlines – faster releases, zero quality compromises (Sponsored) If slow QA processes and flaky tests are a bottleneck for your engineering team, you need QA Wolf. Their AI-native platform , backed by full-time QA engineers, enables their team to create tests 5x faster than anyone else.

IP Address 100

IP Address Routers Internet Server 100

Confluent

OCTOBER 7, 2019

Especially note the exposing external endpoints and proper DNS setup explained in part 1. External endpoint exposure with public DNS is required for this tutorial. Here’s a screenshot of my DNS setup for the domain name used in part 1. Running and accessible Confluent Schema Registry , which was mentioned in part 1, in PKS.

Application 18

Application DNS PaaS Server 18

Kentik

MARCH 13, 2023

So what does this mean for today’s enterprise network engineer? I haven’t even mentioned CASBs, NaaS, containerized network services, and NFV, so you can imagine how the concerns of today’s network engineer are so vastly different from an engineer from yesteryear trying to figure out NHRP and BFD settings.

WAN 98

WAN Wide Area Network Topology Internet 98

Kentik

APRIL 4, 2023

More than anything, reliability becomes the principal challenge for network engineers working in and with the cloud. Even the most detailed reliability engineering can be easily undermined in an insecure network. While there is much to be said about cloud costs and performance , I want to focus this article primarily on reliability.

Cloud 104

Cloud Network Networking Bandwidth 104

Kentik

MARCH 7, 2023

Rich context and real-time datasets allow network engineers to dynamically filter, drill down, and map networks as queries adjust. As mentioned earlier, engineering data pipelines for the intense flow of telemetry is a huge component of making systems observable. Ask any questions about their network.

Network 99

Network Networking Cloud Engineering 99

DoorDash Engineering

JANUARY 16, 2024

The cost increase prompted our engineering team to investigate alternative ways to provide the same level of service more efficiently. Custom multi-cluster service discovery: Our custom service discovery solution, DoorDash data center Service Discovery, or DDSD, provides a custom DNS domain to support multi-cluster communication.

Cloud 84

Cloud IP Address DNS Routers 84

Network Engineering

JANUARY 4, 2025

[I'm unsure whether this should be posted on Network Engineering, Server Faults or Android Enthusiasts] We have a hotspot service that connects into MikroTik routers, using the built-in hotspot facility. From a networking point of view, DNS is functional and there are no firewall entries that can restrict the traffic.

Firewall 52

Firewall DNS Gateway Routers 52

Clear to Send

OCTOBER 28, 2024

In this episode, we sit down with Eva, a support product specialist at Cisco Meraki, who shares her unique role bridging the gap between network support and engineering. Eva also gives us insights into her career journey, transitioning from network engineering to Wi-Fi deployments, and how shes leveraging her expertise in her current role.

Network 52

Network Networking Engineering Access Point 52

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. The DNS server looks up the hostname, which corresponds to the content provider, and returns the IP address of the server that will be the actual source of the content.

DNS 56

DNS Server Internet Network 56

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

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

Network Engineering

AUGUST 19, 2020

dns-server 10.0.0.2 dns-server 10.0.0.2 dns-server 10.0.0.2 dns-server 10.0.0.2 ! ! ip dhcp pool mgmt network 10.0.0.0 255.255.255.0 default-router 10.0.0.1 domain-name LAN ip dhcp pool trusted network 10.0.10.0 255.255.255.0 default-router 10.0.10.1 ip dhcp pool untrusted network 10.0.20.0 255.255.255.0 255.255.255.0

IP Address 52

IP Address DNS Routers Server 52

CATO Networks

APRIL 21, 2024

Catos sophisticated multi-layer detection and mitigation engines have successfully intercepted and blocked all such efforts. Click for full-size] [Click for full-size] We also ran the malware in a controlled environment and saw it periodically sends DNS requests to www[.]dblikes[.]top. Running the malware has created requests to www[.]dblikes[.]top

SASE 52

SASE Firewall DNS Access Point 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. The network has to work, or no one has access to anything.

WAN 59

WAN Data Centers DNS Internet 59

High Scalability

APRIL 16, 2019

Triplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart. Watch a demo and learn how Etleap can save you on engineering hours and decrease your time to value for your Amazon Redshift analytics projects. Who's Hiring? Apply here.

Advertising 10

Advertising Engineering DNS DevOps 10

High Scalability

APRIL 10, 2019

Triplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart. Watch a demo and learn how Etleap can save you on engineering hours and decrease your time to value for your Amazon Redshift analytics projects. Who's Hiring? Apply here.

Advertising 10

Advertising Engineering DNS DevOps 10

Kentik

NOVEMBER 4, 2018

We also utilize nom , an excellent Rust parser combinator library, for high-performance decoding of application layer protocols like DHCP, DNS, and HTTP. These components are distributed as shared libraries with a C API and linked into various parts of our distributed storage engine.

IP Address 67

IP Address Protocol TCP DNS 67

Indeed Engineering

APRIL 7, 2022

That’s the ongoing challenge for our site reliability engineering (SRE) team. SRE originated in 2003 when Google formed a small production engineering team to address reliability issues. SRE is distinct from other engineering roles. They code custom solutions to automate critical processes and reduce toil for engineers.

Engineering 52

Engineering DNS Application Cloud 52

Network Engineering

JANUARY 30, 2025

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 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.

Internet 52

Internet LAN Virtual machine Gateway 52

High Scalability

MAY 14, 2019

Triplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart. Watch a demo and learn how Etleap can save you on engineering hours and decrease your time to value for your Amazon Redshift analytics projects. Who's Hiring? Apply here.

Advertising 9

Advertising Engineering DNS DevOps 9

CATO Networks

MAY 7, 2024

Our data indicates that only 1% of DNS traffic utilizes Secure DNS. We believe this is primarily due to DNS being a critical component of both the internet and organizational operations. Three years after its discovery, theres one CVE that remains one of the most used exploits. Check out the report to see which one it is.

SASE 52

SASE DNS Real Estate SMB 52

High Scalability

JUNE 4, 2019

Triplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart. For heads of IT/Engineering responsible for building an analytics infrastructure , Etleap is an ETL solution for creating perfect data pipelines from day one. Apply here.

Advertising 46

Advertising Engineering DNS DevOps 46

Kentik

MARCH 15, 2023

The attacker can spoof IP addresses, DNS, HTTPS headers, and more to deceive users into interacting with compromised applications. From a networking perspective, a lot of valuable prevention data is available to engineers who know how to use it. In some cases, multi-factor authentication (MFA) has been shown to prevent up to 99.9%

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

Engineering at Meta

MAY 3, 2023

Ducktail is known to target a number of platforms across the internet, including: LinkedIn to socially engineer people into downloading malware; Browsers like Google Chrome, Microsoft Edge, Brave, and Firefox to gain access to people’s information on desktop; and File-hosting services such as Dropbox and Mega, to host malware.

Cookie 116

Cookie Internet JavaScript Media 116

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. Historical audit reports and real-time alerts are built-in.

Education 8

Education Advertising JavaScript Server 8