Kentik

FEBRUARY 8, 2023

This can be done through a variety of techniques, such as using network taps, port mirroring, or software probes. Port mirroring Another method for gathering traffic telemetry is port mirroring, which replicates (mirrors) the network traffic on a switch or router to a monitoring device. Detect and alert on non-encrypted traffic.

Network 111

Network Networking Port IP Address 111

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. KAFKA_ADVERTISED_LISTENERS is a comma-separated list of listeners with their host/IP and port. compute.amazonaws.com port 9092 [tcp/XmlIpcRegSvc] succeeded!

Port 101

Port IaaS DNS Network 101

Engineering at Meta

JANUARY 27, 2023

To gain more visibility into our production network, Millisampler, a BPF-based, lightweight traffic measurement tool that operates at high granularity timescale was built and deployed in every server in the entire fleet at Meta for continual monitoring. stalled videos).

Engineering 142

Engineering Network Networking Data Centers 142

Engineering at Meta

JUNE 10, 2024

We’ve built a kernel abstraction around this which, when called from Bento, will just work as any of the classic kernels we have (with some limitations) and perform message passing using the Jupyter Protocol. The visible manifestation of this is just a selector in the notebook that toggles between server-based kernels and serverless.

Server 115

Server Engineering Port JavaScript 115

Network Engineering

JANUARY 8, 2025

I have been following a networking tutorial on sock4 Toralizer which implementated a sock4 protocol to make http request. Is it that the proxy server, which doesn't support http and only supports https or some error in my implementation. The toralize.h The toralize.h The toralize.h

Port 52

Port Server Protocol Network 52

The Network DNA

JUNE 3, 2024

The load balancer sends requests to defined endpoints in the backend pool, which fail if directed to an unavailable server. Rules enable port mapping from a load balancer's frontend to the backend pool, creating port relationships and forwarding incoming traffic. These components identify issues and define appropriate responses.

IP Address 52

IP Address Port Protocol Virtual machine 52

Engineering at Meta

AUGUST 5, 2024

This backend fabric utilizes the RoCEv2 protocol, which encapsulates the RDMA service in UDP packets for transport over the network. Initially, our GPU clusters used a simple star topology with a few AI racks connected to a central Ethernet switch running the non-routable RoCEv1 protocol.

Network 132

Network Networking Topology Data Centers 132

CATO Networks

MARCH 24, 2020

At the beginning of the month, Microsoft released an advisory and security patch for a serious Windows Server Message Block (SMB) vulnerability called the Windows SMBv3 Client/Server Remote Code Execution Vulnerability (AKA Windows SMBv3 RCE or CVE-2020-0796). This would solve the problem for SMB servers but not SMB clients.

SMB 52

SMB Port Server Protocol 52

CATO Networks

JANUARY 17, 2018

In the light of recent ransomware attack campaigns against Microsoft RDP servers, Cato Research assessed the risk network scanning poses to organizations. In some cases, network scanners will use port scans and in other cases ping sweeps. As for SQL Servers, it seems like the hunt for databases still exists.

Network 52

Network Networking Server Port 52

Kentik

MAY 2, 2018

In simple terms, Border Gateway Protocol (BGP) is the protocol that routes traffic on the Internet. During last week’s attack, the attacker was redirecting traffic that belonged to Amazon’s Route 53 DNS servers. In this case, requests for MyEtherWallet.com were answered with the IP address of a fake server in Russia.

IP Address 49

IP Address DNS UDP port Advertising 49

CATO Networks

AUGUST 18, 2022

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. This includes elements like IP address, subnet, username, group membership, hostname, remote user, site, and more.

SASE 52

SASE Cloud Port Firewall 52

Kentik

JANUARY 13, 2021

Send these pings using the Internet Control Message Protocol (ICMP) or TCP to one or any of the devices you believe to be involved. Ping is a utility that’s available on practically every system, be it a desktop, server, router, or switch. There’s a sports analogy that says “the most important ability is availability” for systems.

Network 114

Network Networking TCP Protocol 114

Kentik

OCTOBER 2, 2015

It focuses on using PHP to parse the JSON and to write the desired values to a human-readable file on a web server. Kentik Detect customers use alerts to monitor various metrics in the data that is ingested into the Kentik Data Engine (KDE), including information on devices, interfaces, IP/CIDR, Geo, ASN, and ports. protocol = 6.

Port 40

Port Protocol Server Bandwidth 40

Kentik

JUNE 27, 2016

You can use this capability to identify compromised hosts and command-and-control communications by setting up queries that break out traffic by protocol and origin (GeoIP). Advanced Big Data style visualizations returned from these queries make it easy to see where the traffic is going and on which ports.

Network Security 40

Network Security Network Networking Protocol 40

CATO Networks

APRIL 6, 2023

This enables them to secure traffic directed at datacenter applications and also direct traffic to the right server and applications within the WAN. The visibility enables protecting WAN traffic and remote users accessing internal applications and the governance of applications, ports and protocols. Download the White Paper 3.

Firewall 52

Firewall LAN WAN Internet 52

Heroku

NOVEMBER 21, 2024

After thorough router investigation and peeling back Pumas server code, we realized what we had stumbled upon was not actually a Router 2.0 Reproduction The long response times issue first surfaced through a customer support ticket for an application running a Puma + Rails web server. performance issue. ec2:11059 tcp 0 0 ip-10-1-87-57.ec2:28631

Routers 59

Routers TCP Server DNS 59

Kentik

DECEMBER 2, 2015

The issue was a new type of “spam reflection” that was causing headaches by allowing spammers to avoid detection while utilizing servers inside the customer’s network as spam sources. Here’s how these types of schemes work: The spammer sends a SYN from a spoofed source IP address to TCP port 25 (SMTP) on the target mail server.

TCP 40

TCP Protocol Port IP Address 40

CATO Networks

SEPTEMBER 11, 2023

allow users on the corporate VLAN to access printers located in the printer VLAN, over specific TCP ports. CCTV cameras), connected to an IOT-camera VLAN, to access the IOT File Server, but only over HTTPS. allow database synchronization across two VLANs located in separate datacenter rooms over a specific protocol/port.

LAN 52

LAN Cloud Firewall WAN 52

Confluent

FEBRUARY 12, 2019

Almost all relational databases provide a JDBC driver, including Oracle, Microsoft SQL Server, DB2, MySQL and Postgres. You can find the Docker Compose configuration and associated files for you to try this out yourself, with Postgres, MySQL, Oracle and MS SQL Server on GitHub. Try it at home! JDBC drivers. included with Kafka Connect.

Protocol 90

Protocol Application Server Firewall 90

Kentik

APRIL 19, 2023

Sometimes there is a perception that the embedded solution is about saving money for space and power needed to host the servers, but this is mostly a misunderstanding. The CDN and the ISP peers over an IXP, the volume drives port upgrades, and private connections are impossible. The first two scenarios are straightforward.

IP Address 52

IP Address DNS Server Network 52

Kentik

NOVEMBER 23, 2015

A growing percentage of attacks are reflection and amplification attacks using small, spoofed SNMP, DNS, or NTP requests to many distributed servers to bombard a target with the much more bandwidth-heavy responses to those requests. So next we’ll look at the protocol and destination port # of the traffic.

IP Address 40

IP Address Port Protocol Internet 40

CATO Networks

APRIL 16, 2019

The usual culprits include ransomware, malware, ill-considered BYOD (Bring Your Own Device) strategies, and vulnerable protocols. With small branch offices often lax in their security policies, they become a favorite entry port for all too many attackers. Personal mobile devices are another critical entry point.

WAN 52

WAN Network Networking MPLS 52

Kentik

JULY 20, 2018

NetFlow is a protocol that was originally developed by Cisco to help network operators gain a better understanding of their network traffic conditions. NetFlow collector and analysis applications represent two key capabilities of NetFlow network monitoring products that are typically implemented on the same server. VMware servers.

Routers 40

Routers IP Address Protocol Server 40

CATO Networks

NOVEMBER 20, 2019

Since most firewall configurations allow HTTP and TLS to any address, many bots use these protocols to communicate with their targets. Every HTTP session has a set of request headers defining the request, and how the server should handle it. This can be done by looking beyond those protocols.

Network 52

Network Networking Protocol IP Address 52

CATO Networks

SEPTEMBER 2, 2021

NGFW also has the ability to consume threat intelligence to make informed threat decisions and may include other advanced features beyond those of the port/protocol inspection of the traditional firewall. Often, the protocol is referred to as SSL/TLS. FWaaS is one of the foundational security capabilities of a SASE solution.

SASE 52

SASE Firewall IP Address VPN 52

Kentik

APRIL 24, 2017

Comparing flow protocols for real-world large-scale networks. A lot of ink has been spilled over the years on the topic of flow protocols, specifically how they work and their relative accuracy. One of the things that can be rather confusing is that there are a lot of different flow protocol names.

Protocol 40

Protocol Routers Bandwidth Internet 40

Kentik

JUNE 28, 2023

One way we do this is by enriching flow records with data from threat intelligence feeds, identifying threats such as botnet command and control servers, malware distribution points, phishing websites, and spam sources. Well, if you see SSH connections over port 22 still happening, it is worth investigating.

Port 52

Port Airlines Network Networking 52

Kentik

SEPTEMBER 20, 2016

For example, using SNMP or flow data to track traffic volume on interfaces, servers, and devices can provide necessary visibility into possible congestion points. As an example, we’ll use traffic from Kentik’s own servers. TCP was designed as a stateful protocol to provide reliability across network infrastructure.

Network 40

Network Networking TCP Server 40

CATO Networks

FEBRUARY 26, 2020

NGFW also supports the creation of custom application definitions to enable identification of specific apps based on TCP/UDP port, IP address, or domain. Additionally, a Deep Packet Inspection (DPI) engine enables contextualization of traffic. SWG focuses on layer 7 traffic exclusively and inspects inbound and outbound flows.

Network Security 52

Network Security Network Networking UDP port 52

Kentik

DECEMBER 5, 2016

In the Filters pane, we filtered to show only dest port 179 (BGP). The graph and table in the main display area show us the top three destination network elements (anonymized of course) in terms of 98th percentile of retransmits of traffic using the BGP port. Is It One of Our Servers? Where in the World? Clues from AS Path.

Network 40

Network Networking TCP IP Address 40

Kentik

MARCH 13, 2018

To start, we’ll look at a relatively simple example showing traffic measured in bits per second (bps), broken down by source IPs, destination IPs and services (protocol / port). To understand how Sankey diagrams work in Kentik Detect, let’s look at a few examples. Troubleshooting data center congestion.

Data Centers 40

Data Centers Port Energy Network 40

Kentik

APRIL 3, 2023

Higher level abstractions For another level of abstraction, open source tools have emerged, such as Cilium , which runs as an agent in container pods or on servers. Is the remote server I don’t own taking longer than expected to process my TCP request? However, Cillium is also much more than this.

TCP 110

TCP Application Virtual machine Network 110

CATO Networks

FEBRUARY 4, 2019

The CPU and server costs, rack space, and power required to meet the same performance footprint of a dedicated solution end up being as expensive as or more than custom-designed alternatives. link] Limited Connectivity Capabilities Most off-the-shelf vCPE/uCPE hardware features Ethernet ports to connect to the WAN, but little more.

5G 52

5G Virtual machine WAN Media 52

Confluent

OCTOBER 24, 2019

The blue parts represent PostgreSQL databases, and turquoise is a Nginx web server. The events are handled by the command handler, which is the part of the system that has been ported to Rust. kafka is an implementation of the Kafka protocol in Rust, while rdkafka is a wrapper for librdkafka. Rust libraries for Kafka.

Banking 18

Banking Application Topology Virtual machine 18

Kentik

JULY 28, 2021

Latency : Missing packets in connection-oriented protocols such as TCP and QUIC result in lost packets getting resent. Bad hardware (the switch or router port). You have to remember that ping rides on top of ICMP, and in a congested network it is one of the first protocols to get dropped by a busy router. Overwhelmed router.

Cloud 116

Cloud TCP Routers Protocol 116

CloudFaire

JANUARY 21, 2025

HTTP attributes commonly used in DDoS attacks HTTP methods HTTP methods (also called HTTP verbs) define the action to be performed on a resource on a server. They are part of the HTTP protocol and allow communication between clients (such as browsers) and servers. We also saw a similar number of unique source ports per second.

IP Address 121

IP Address Network Networking Server 121