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18.09.2017

Home » HPC » Articles »

in the Fortran programfor a longer run time: nx = 8000 ny = 8000 i t_max = 10000 tolerance = 0.00004D+00 The code was compiled using GCC 7.1 and run on a four-core AMD A6-6310 laptop (Lenovo

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Detecting malware with Yara

09.10.2017

Home » Archive » 2017 » Issue 41: Kuber... »

Lead Image © Mohamad Razi Bin Husin, 123RF.com

= "A pdf file that contains a bad link" 10 11 strings: 12 $pdf_magic = {68 47 77 22} 13 $s_anchor_tag = "0 and (#s

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Udev with virtual machines

14.11.2013

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

distributions. Table 1 Udev Storage Locations Distribution Path Ubuntu 12.10, Debian 7.0, SLES 11 SP2 * /etc/udev/rules.d/70-persistent-net.rules* /lib/udev/rules.d/75

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Comparing Ceph and GlusterFS

21.04.2015

Home » Archive » 2014 » Issue 23: 10 Ti... »

-r--r-- 2 root root 6 3. Feb 18:36 .glusterfs/0d/19/0d19fa3e-5413-4f6e-abfa-1f344b687ba7 # # ls -alid dir1 .glusterfs/fe/9d/fe9d750b-c0e3-42ba-b2cb-22ff8de3edf0 .glusterfs /00/00

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Free Enterprise Backup with Bareos

12.11.2013

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director ... Terminated Jobs: JobId Level Files Bytes Status Finished Name ===================================================== 1 Full 135 6.679 M OK 18-Jul-13 16:00 BackupClient1 2 Incr 0 0 OK

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Beyond monitoring: Mathematical load simulation in Perl

30.11.2025

Home » Archive » 2011 » Issue 6: Perfor... »

Model"; 11 $work = "ebiz-tx"; 12 $node1 = "WebServer"; 13 $node2 = "AppServer"; 14 $node3 = "DBMServer"; 15 $think = 0.0 * 1e-3; # as per test system 16 $dtime = 2.2 * 1e-3; # dummy service time 17 18

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Build a honeypot with real-world alerts

01.08.2019

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

. The takeaway is the -j LOG option (line 12), which logs port scanning behavior to a logfile with the iptables: prefix. Listing 1 iptable Rules 01 *filter 02 *filter 03 :INPUT ACCEPT [0:0] 04

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Intruder Detection with tcpdump

28.11.2011

Home » Articles »

, it will only capture the first 68 bytes of each packet. Except in older versions of tcpdump, a snaplen value of 0 uses a length necessary to capture whole packets. Figure 1 dissects the output of a sample dump

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I/O benchmarks with Fio

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

/0K /s] [4137 /0 iops] [eta 00m:06s] In the example, the first job is performing a sequential read, marked as r in square brackets, while Fio hasn't initialized the second job, marked as P

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Help Desk with FreeScout

03.08.2023

Home » Archive » 2023 » Issue 76: Energ... »

. Knowledge Base $12.00 Turns FreeScout into a knowledge base that customers and internal staff can reference; supports multilingual content. Reports $14.99 Generates real

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