The Network DNA

JUNE 10, 2024

It's an essential component that keeps track of the mapping between real IP addresses and their translated (mapped) counterparts. This table is required for the firewall to maintain and translate private IP addresses to public ones, allowing communication over the internet. TCP, UDP, ICMP). TCP, UDP, ICMP).

Firewall 52

Firewall IP Address TCP Port 52

Kentik

OCTOBER 4, 2021

Included in the withdrawn prefixes were the IP addresses of Facebook’s authoritative DNS servers, rendering them unreachable. Below, Kentik’s versatile Data Explorer illustrates how traffic from Facebook’s platform changed over the course of the day when broken down by protocol.

TCP 145

TCP DNS Server Media 145

Kentik

JANUARY 10, 2022

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. Ask yourself, do you want your test to query the DNS every time the test executes, or should it use the same IP address from the last test? Where is the DNS?

IP Address 98

IP Address DNS TCP Application 98

The Network DNA

JUNE 3, 2024

The internal load balancer is assigned a private IP address from the virtual network's subnet range for the frontend and targets the private IP addresses of backend services (often Azure virtual machines). We can select options for Public IP address (new or existing), SKU, assignment, and IPv6.

IP Address 52

IP Address Port Protocol Virtual machine 52

Kentik

MAY 8, 2023

While redundancy is a significant contributor to network resilience, other mechanisms, protocols, and methods can also contribute to overall network resilience. Many network protocols have been designed to handle different aspects of this process. Let’s highlight some of the primary protocols.

Network 52

Network Networking IP Address TCP 52

Kentik

MAY 21, 2019

In short, the Mirai network of bots was built by malicious actors who exploited remote access and control protocol ports over many different device types, producing damaging traffic levels and creating an advanced, powerful tool that can be used for large-scale DDoS attacks and many other nefarious purposes. The Race to Stop Mirai.

Port 81

Port IP Address Internet Network 81

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. HTTP is the new TCP. These protocols helped the NPM identify applications. It’s encrypted HTTPS.

Encryption 84

Encryption DNS IP Address Protocol 84

Kentik

NOVEMBER 4, 2018

In addition to basic data like source and destination IP address, port, protocol, etc., we collect network performance metrics like TCP connection setup latency, retransmitted and out-of-order packet counts, and window size.

IP Address 67

IP Address Protocol TCP DNS 67

Kentik

MAY 2, 2018

In simple terms, Border Gateway Protocol (BGP) is the protocol that routes traffic on the Internet. They can then announce the routes (groups of IP addresses) that they own from their ASN. During a BGP route hijack, an attacker advertises IP prefixes from an ASN that is not the normal originator.

IP Address 49

IP Address DNS UDP port Advertising 49

CATO Networks

AUGUST 18, 2022

This includes elements like IP address, subnet, username, group membership, hostname, remote user, site, and more. Included features like QoS, TCP Acceleration, and Packet Loss Mitigation allow customers to fine-tune performance to their needs. Cato Network Rules are pre-defined to meet common use-cases.

SASE 52

SASE Cloud Port Firewall 52

Confluent

JULY 1, 2019

A listener is a combination of: Host/IP. 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.

Port 101

Port IaaS DNS Network 101

Kentik

MARCH 13, 2019

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. 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

JUNE 7, 2023

They capture detailed information about network traffic, including: Source and destination IP addresses Ports Protocols Packet counts By analyzing these logs, you can gain visibility into the volume, patterns, and characteristics of traffic, such as whether it’s being dropped or incorrectly routed, to identify connectivity issues.

Cloud 97

Cloud Gateway Port IP Address 97

Kentik

APRIL 3, 2023

event(data) duration = float(event) / 1000000 print("TCP retransmit detected (duration: %0.2f You can modify the program to capture other information as well, such as the number of retransmit attempts or the source and destination IP addresses of the affected packets. tcpdrop allows you to trace TCP packet drops.

TCP 110

TCP Application Virtual machine Network 110

CATO Networks

JULY 18, 2018

Legacy networks route traffic based on IP address or subnet, information that bears little resemblance to the business. Segment-specific protocol acceleration technologies maximizes global throughput. A variety of TCP enhancements increase throughput when accessing cloud and WAN resources.

WAN 52

WAN IP Address MPLS Cloud 52

CATO Networks

APRIL 26, 2016

It lies at the core of how the Internet was built, its protocols, and how service providers implemented their routing layer. IP Routings Historical Baggage: Simplistic Data Plane Whether the traffic is voice, video, HTTP, or email, the Internet is made of IP packets.

Internet 52

Internet Routers MPLS Protocol 52

Kentik

DECEMBER 2, 2015

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. First, we’ll write a query to get a list of all the hosts in the network that are receiving traffic from remote source port TCP/25 (the traffic described in Step 2 above).

TCP 40

TCP Protocol Port IP Address 40

Kentik

NOVEMBER 23, 2015

DoS becomes DDoS when the source of the attack is distributed, meaning that the attack comes from more than one unique IP address. According to Akamai’s Q1 2015 State of the Internet report , over 50% of volumetric attacks are IP flood attacks involving a high volume of spoofed packets such as TCP SYN, UDP, or UDP fragments.

IP Address 40

IP Address Port Protocol Internet 40

Kentik

DECEMBER 5, 2016

In this case we chose the “Destination:IP/CIDR” dimension to frame the overall view in terms of the IPs that were the destination of the problematic traffic. Next we set Metric (still in the Query pane) to look at the percentage of TCP retransmits. The next step toward finding out was to add “Full:Device” as another group-by dimension.

Network 40

Network Networking TCP IP Address 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. Catos IPS uses metadata from network traffic flows and third-party data feeds in conjunction with machine learning algorithms to detect suspicious network activity.

Network Security 52

Network Security Network Networking UDP port 52

CATO Networks

MAY 20, 2020

NGFWs can drill down beyond IP addresses, TCP/UDP ports, and network protocols to enforce policies based on packet content. Faster containment of threats Once a live threat is verified, automatic containment actions such as disconnecting affected endpoints and blocking malicious domains or IP addresses.

Network Security 52

Network Security Network Networking UDP port 52

Kentik

FEBRUARY 8, 2016

Designed before the dawn of the commercial Internet, the Border Gateway Protocol (BGP) is a policy-based routing protocol that has long been an established part of the Internet infrastructure. If there is not a generally advertised route to cover an IP address, then at least some hosts on the Internet will not be able to reach it.

Advertising 49

Advertising Routers Internet Protocol 49

Confluent

FEBRUARY 21, 2019

For example, if DHCP logs are being collected, you can have a table that keeps the most up-to-date mapping between an IP address and a domain computer in your environment. Meanwhile, you can query the DHCP logs stream and access past IP addresses assigned to workstations in your network. What is the Sysmon data model?

IP Address 83

IP Address Server Application Networking 83

Kentik

OCTOBER 2, 2015

Define a TCP Syn alert based on the queries provided in Defining an Alert below. protocol = 6. Example supplemental query 1: select i_device_name , l4_dst_port , sum ( both_bytes ) as f_sum_both_bytes from all_devices where ipv4_dst_addr = '%key%' and protocol = 6 and tcp_flags = 2 and ctimestamp > % lookbackseconds %.

Port 40

Port Protocol Server Bandwidth 40

CloudFaire

DECEMBER 9, 2024

of TCP connections are unexpectedly terminated before any useful data can be exchanged. Routing security, measured as the share of RPKI valid routes and the share of covered IP address space, continued to improve globally throughout 2024. increase in RPKI valid IPv4 address space in 2024, and a 6.4% Security 6.5%

Internet 72

Internet Email IP Address TCP 72

Kentik

JULY 28, 2021

It isn’t so much that packet loss is a huge problem — TCP and QUIC were engineered in anticipation that lost packets would be inevitable. Latency : Missing packets in connection-oriented protocols such as TCP and QUIC result in lost packets getting resent. UDP vs. TCP. Packet Loss Causes Problems with Cloud Applications.

Cloud 116

Cloud TCP Routers Protocol 116