Dynatrace

JULY 2, 2024

The Qualys Threat Research Unit (TRU) has discovered a Remote Unauthenticated Code Execution (RCE) vulnerability in OpenSSH server (sshd) in glibc-based Linux systems. Instead of dst_addr use a src_addr to see the most active sources that have been targeting any of your ssh daemons on all the servers in the respective VPC.

AWS 276

AWS Network Traffic Servers 276

Dynatrace

APRIL 2, 2020

By 2001, we won our first loyal customers. For nearly fifteen years (~ 2001-2015), network traffic effectively served as a common API for measuring usage, performance, and availability of all applications, links, and clients. The market grew tremendously, fueled by the adoption of the Java platform as the application server standard.

Network 221

Network Traffic Monitoring Java 221

All Things Distributed

AUGUST 17, 2012

In Proceedings of the Eighteenth Symposium on Operating Systems Principles (SOSP-18), Banff, Canada, October, 2001. You can find other papers on the topic, Matts thesis, several presentation and some software at his Harvard web page: SEDA: An Architecture for Highly Concurrent Server Applications. blog comments powered by Disqus.

Architecture 75

Architecture AWS Internet Internet 75

Percona

JANUARY 5, 2023

To speed up the above query we need to create an appropriate index so that the query can be executed in minimal time and have less impact on server performance. If we are using binlog_format as ROW, a huge number of bin logs would be created which could choke I/O of servers and require extra cleanup. What is partitioning?

Traffic 93

Traffic Engineering Speed Storage 93

Smashing Magazine

AUGUST 20, 2021

Yet, for all these technological developments, it’s interesting that many of us are still serving sites in the same way Tim did with the very first website — a web server serving static website files. In the 2000s we had a showdown of two popular blog publishing platforms — MovableType in 2001 and WordPress in 2003.

Ecommerce 142

Ecommerce Website Government Internet 142

Brendan Gregg

SEPTEMBER 5, 2017

Oracle VM Server is based on Xen. I came up with a great demo where I could break Solaris 9 and 10 servers in the same way, then demonstrate how it would take an hour and a reboot cycle to fix Solaris 9, but minutes and no reboot to fix Solaris 10. When I first joined Sun in 2001, it was believed that Sun was too big to fail, as well.

Virtualization 75

Virtualization AWS Engineering Hardware 75

Adrian Cockcroft

JUNE 21, 2022

I became the Sun UK local specialist in performance and hardware, and as Sun transitioned from a desktop workstation company to sell high end multiprocessor servers I was helping customers find and fix scalability problems. This was followed by a greatly expanded second edition with some additional chapters by Rich Pettit.

Tuning 52

Tuning Benchmarking Engineering C++ 52