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Guarding against social engineering attacks

01.08.2019

Home » Archive » 2019 » Issue 52: Stop... »

will be 2.2GB lighter. Figure 1: The download options with the SHA256 checksum to make sure it matches the reported checksum on the site. Be sure

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Using the MQTT IoT protocol for unusual but useful purposes

03.12.2015

Home » Archive » 2015 » Issue 30: OpenD... »

. Clients don't actually know whether they really see all the messages that arrive at the broker; the broker ACLS decide this. Messages transport payloads; payload data can also be binary and be up to 256MB

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NetFlow reporting with Google Analytics

10.06.2015

Home » Archive » 2015 » Issue 27: Fault... »

source nfdump [5] tool does this job on an existing Linux server or on a lean virtual machine (VM). A CPU core, 256MB of RAM, and a 2GB hard drive are sufficient for the VM. You can install on Cent

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Understanding the Status of Your Filesystem

18.06.2014

Home » HPC » Articles »

.59 64–128 12,083 3.11 90.70 128–256 8,623 2.22 92.93 256–512 13,437 3.46 96.39 512–1,024 5,456 1

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ClusterHAT

10.07.2017

Home » HPC » Articles »

with the original Raspberry Pi Model A, ranging from two to more than 250 nodes. That early 32-bit system had a single core running at 700MHz with 256MB of memory. You can build a cluster of five RPi3 nodes with 20

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Installing and operating the Graylog SIEM solution

13.12.2018

Home » Archive » 2018 » Issue 48: Secur... »

. The pwgen command generates a password and encrypts with sh256sum: pwgen -N 1 -s 100 echo -n | sha256sum The encrypted password is then assigned to the parameter root_password_sha2. Table 1 gives

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Error-correcting code memory keeps single-bit errors at bay

14.11.2013

Home » Archive » 2013 » Issue 17: Cloud... »

Controller login2$ ls -s /sys/devices/system/edac/mc/mc0 total 0 0 ce_count 0 csrow1 0 csrow4 0 csrow7 0 reset_counters 0 size_mb 0 ce_noinfo_count 0 csrow2 0 csrow5 0 device 0 sdram

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Persistent Memory

14.01.2016

Home » HPC » Articles »

DRAM. At the extreme, you can pretty much buy systems with 1-2TB of memory, but you probably don't buy too many of them because of cost. Typical compute nodes are in the 64-256GB range. Persistent memory

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How persistent memory will change computing

03.12.2015

Home » Archive » 2015 » Issue 30: OpenD... »

than DRAM. At the extreme, you can pretty much buy systems with 1-2TB of memory, but you probably don't buy too many of them because of cost. Typical compute nodes are in the 64-256GB range. Persistent

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Efficiently planning and expanding the capacities of a cloud

02.03.2018

Home » Archive » 2018 » Issue 44: Cloud... »

. Systems like this are usually equipped with 256 or 512GB of RAM. As a result of overcommitting CPU resources, a total of 56 virtual CPU cores are available, of which the provider normally passes 50

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