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16%
Security after Heartbleed – OpenSSL and its alternatives
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © Ilya Masik, fotolia.com
that is linked against OpenSSL. SSL implementations of important tools such as Postfix also rely primarily on OpenSSL. OpenSSL development began in the mid 90s; the trigger for this development was the infamous U
16%
Monitoring Storage with iostat
25.02.2013
Home »  HPC  »  Articles  » 
_w_iostat_sda1.out& sleep 10 ./iozone -i 0 -r 64k -s -3g -e -w > iozone.out sleep 10 date I put the two sleep commands in the script so I could get some “quiet” data before and after the run. (Note: Sometimes it
16%
SDS configuration and performance
13.02.2017
Home »  Archive  »  2017  »  Issue 37: Distr...  » 
Lead Image © Jakub Jirsak, 123RF.com
with dedicated servers and combinations of SSDs and traditional hard drives. Usually, the components connect with each other and the clients over a 10Gb network. However, SDS now also provides added value
16%
Efficiently planning and expanding the capacities of a cloud
02.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Lead Image © digifuture, 123RF.com
to process an API request and you have 100 measured values for this parameter, you would create a table with all 100 values in ascending order. If you want the 90th percentile, you take the first 90 percent
16%
Environment Modules
23.02.2012
Home »  HPC  »  Articles  » 
------------------------------------------- /opt/apps/intel11_1/modulefiles ------------------------------------------- fftw3/3.2.2 gotoblas2/1.08 hdf5/1.8.4 mkl/10.2.4.032 mvapich2/1.4 netcdf/4.0.1 openmpi/1
16%
Denial of Service in the Cloud
12.11.2013
Home »  Articles  » 
requests per second, a single DNS server will typically collapse under the load of about 10,000 DNS requests per second. If one DNS server fails, multiple hosts are affected. At the same time, almost all
16%
Distributed denial of service attacks from and against the cloud
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © leksustuss, 123RF.com
server will typically collapse under the load of about 10,000 DNS requests per second. If one DNS server fails, multiple hosts are affected. At the same time, almost all domain owners rely on the technical
16%
Manage Windows images with the Windows ADK
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © Maksym Yemelyanov, 123RF.com
flexible options for setting up the software. Also interesting to note is that the suggested installation path still references version 10 – probably an oversight on Microsoft's part. You should
16%
Migrating to Azure Monitor Agent
03.08.2023
Home »  Archive  »  2023  »  Issue 76: Energ...  » 
immediately as soon as you send it to Log Analytics) and retention period, which is billed by time and volume of data. Only the first 30 days are free of charge, or 90 days if Microsoft Sentinel is enabled
16%
Better monitoring for websites and certificates
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © amasterpics123, 123RF.com
certificates . An example of a fairly comprehensive certificate check (still without using the full range of options) is: ./check_cert --url checkmk.de --port 443 --not-after 3456000 1728000 --max-validity 90

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