Synthetic Monitoring

Simulate visitor interaction with your site to monitor the end user experience.

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Simulate visitor interaction

Identify bottlenecks and speed up your website.

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Real User Monitoring

Enhance your site performance with data from actual site visitors

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Real user insights in real time

Know how your site or web app is performing with real user insights

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Infrastructure Monitoring Powered by SolarWinds AppOptics

Instant visibility into servers, virtual hosts, and containerized environments

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Comprehensive set of turnkey infrastructure integrations

Including dozens of AWS and Azure services, container orchestrations like Docker and Kubernetes, and more 

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Application Performance Monitoring Powered by SolarWinds AppOptics

Comprehensive, full-stack visibility, and troubleshooting

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Complete visibility into application issues

Pinpoint the root cause down to a poor-performing line of code

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Log Management and Analytics Powered by SolarWinds Loggly

Integrated, cost-effective, hosted, and scalable full-stack, multi-source log management

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Collect, search, and analyze log data

Quickly jump into the relevant logs to accelerate troubleshooting

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Slashdot crashed Slashdot

The ever-popular Slashdot was unreachable for over an hour last evening due to massive amounts of traffic hitting its network. Normally Slashdot is known for bringing other sites down with the traffic it generates (the so-called Slashdot effect, or slashdotting).
Slashdot being Slashdot, they have been very transparent about it (which is a Good Thing) and they have posted an explanation on their website.
What is interesting is that the traffic wasn’t from an external source; it was generated by their own network equipment. Two switches had gone haywire and flooded their network with traffic (40 Gbit/s was going through their core switches), essentially creating an internal DoS attack.
Here is an explanation from Sourceforge’s chief network engineer (Sourceforge owns Slashdot):

Through the process of elimination I was finally able to isolate the problem down to a pair of switches… After shutting the downlink ports to those switches off, the network recovered and everything came back. I fully believe the switches in that cabinet are still sitting there attempting to send 20Gbit/sec of traffic out trying to do something — I just don’t know what yet. Luckily we don’t have any machines deployed on [that row in that cabinet] yet so no machines are offline. The network came back up around 10:10 PM EST.

A more detailed description of what happened is available over at Slashdot. It’s an interesting read.

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