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8%
Endlessh and tc tarpits slow down attackers
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Yewkeo, 123RF.com
it get allocated to the 1:5 traffic flows. Check the output of both the HTB traffic class rules to look for overlimits. Now it's time to put those steps in action. To begin, add an iptables rule
8%
Visualizing data captured by nmon
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © Orlando Rosu, 123RF.com
systems while focusing on the real performance analysis task at hand. I consider the list view to be most helpful and informative, because all the main performance information for each server is viewable ... When speed, ease of use, and time to answer are paramount in performance monitoring and assessment of nmon logfiles, onTune nmon Analyzer Plus for Windows can help. ... In Good Time
8%
Coordinating distributed systems with ZooKeeper
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © smileus, 123RF.com
distributed filesystem. A volatile znode disappears when the owner's session ends. Admins usually use this node to discover hosts in the distributed filesystem. Each server then announces its IP address via
8%
Detect anomalies in metrics data
02.08.2022
Home »  Archive  »  2022  »  Issue 70: Defen...  » 
Lead Image © rudall30, 123RF.com
with hundreds or thousands of hosts, mean that individual Prometheus instances become a bottleneck over time. If you go for manual sharding, however, you lose the central advantage of the single point ... Anomalies in an environment's metrics data are an important indicator of an attack. The Prometheus time series database automatically detects, alerts, and forecasts anomalous behavior
8%
Persistent storage management for Kubernetes
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
Photo by CHUTTERSNAP on Unsplash
and their physical equivalents on disk. Within the ring are zones, devices, partitions, and replicas. Each partition is replicated at least three times in the cluster. The locations of the copies are stored
8%
Setting up and managing IPv6 on Windows Server 2016
09.06.2018
Home »  Archive  »  2018  »  Issue 45: Autom...  » 
Lead Image © Photo by mathyas kurmann Unsplash.com
. The IPv6 128-bit address space provides enough space for each device to have its own globally valid address. More efficient routing. The revised IPv6 header and the new addressing scheme, which supports
8%
Efficiently planning and expanding the capacities of a cloud
02.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Lead Image © digifuture, 123RF.com
involved weeks of lead time. The cloud provider must promise its customers that they will have access to virtually unlimited resources, which in turn means a huge amount of effort – both operationally
8%
Test JavaScript programs with Karma
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image Photo by Pierre Bamin on Unsplash
in several browsers at the same time while logging the results. The browsers can even run on external devices such as smartphones or tablets, which lets you test your own code under real conditions
8%
Container Apps
02.10.2017
Home »  Articles  » 
 
can bring your own build infrastructure or use ours. When you install a snap for the first time, another small snap is also pulled down (at the time of writing, it’s around 85MB), known as the
8%
HPC Monitoring: What Should You Monitor?
15.01.2014
Home »  HPC  »  Articles  » 
many people have created is monitoring network usage. If network usage reaches a very large percentage of its capacity over an extended period of time, then it’s likely the network has become

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