Kentik

NOVEMBER 4, 2018

In addition to basic data like source and destination IP address, port, protocol, etc., We also utilize nom , an excellent Rust parser combinator library, for high-performance decoding of application layer protocols like DHCP, DNS, and HTTP. Rust’s performance and low memory use is a key benefit here.

IP Address 67

IP Address Protocol TCP DNS 67

Kentik

MARCH 13, 2019

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. The victim can update DNS to point at a different IP address in an attempt to get their application back up. Destination port.

IP Address 49

IP Address Port Routers DNS 49

Heroku

NOVEMBER 21, 2024

beta, our engineering team has addressed several bugs, all fairly straight-forward with one exception involving Puma -based applications. Once that timeout is hit, the socket is reclaimed and the router is free to re-use the address + port combination for a new connection. This week , Heroku made Router 2.0 Throughout the Router 2.0

Routers 59

Routers TCP Server DNS 59

Network Engineering

JULY 3, 2021

threat-detection basic-threat threat-detection statistics access-list no threat-detection statistics tcp-intercept webvpn username cisco password 3USUcOPFUiMCO4Jk encrypted ! class-map inspection_default match default-inspection-traffic ! ! 11:07:17 =~=~=~=~=~=~=~=~=~=~=~= show ver Cisco Adaptive Security Appliance Software Version 8.2(5)

VPN 52

VPN IP Address Encryption TCP 52

Scott's Weblog

AUGUST 16, 2024

Networking Leon Adato has a great piece on transitioning from being a network engineer to being a cloud engineer. Geoff Huston discusses DNS and UDP truncation. Running Oracle Kubernetes Engine (OKE)? From networking to security and from hardware to the cloud, there’s something in here for just about everyone.

DNS 40

DNS Server Engineering Cloud 40

CATO Networks

MAY 20, 2024

Identification & Blocking Strategies There are multiple strategies to take into consideration when tackling the above challenges, let’s explore these strategies in detail: From a network perspective Analyzing the DNS lookup name associated with an IP address can provide valuable insights into the nature of the IP.

IP Address 52

IP Address Server Port SMB 52

Kentik

OCTOBER 30, 2017

We also looked at this traffic by destination port and saw that in addition to the spikes on port 14999 (aggregation service) we saw a dip on 20012 (ingest) which is a service running on the same node. Using a Data Explorer query to reveal the DNS queries made by this host, we were able to confirm this suspicion.

Port 40

Port DevOps IP Address Network 40

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. Bad hardware (the switch or router port). A tiny voice was asking, “How will we monitor packet loss and connection latency, hop-by-hop, when using cloud applications?”. Overwhelmed router.

Cloud 116

Cloud TCP Routers Protocol 116

CloudFaire

JANUARY 21, 2025

In turn, this allows our security engineers and researchers to craft heuristics to increase mitigation efficacy against these attacks. We also saw a similar number of unique source ports per second. An additional 11% were HTTP DDoS attacks that were caught pretending to be a legitimate browser.

IP Address 121

IP Address Network Networking Server 121