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19.10.2012

Home » HPC » Articles »

12-core AMD processors ranging in speed from 2.2 to 2.9GHz with 24 to 128GB of RAM per server and up to 1TB of scratch local storage per node. Getting applications running POD HPC clouds can be quite

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Profiling Python code

30.01.2020

Home » Archive » 2020 » Issue 55: AWS L... »

of code. Listing 1 Time to Execute import time start_time = time.time() # Code to check follows a, b = 1,2 c = a + b # Code to check ends end_time = time.time() time_taken = (end_time- start

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Finding cracks with Nmap, Portbunny, and Nessus

30.11.2025

Home » Archive » 2010 » Issue 0: Active... »

network printer on an internal network. The scan relies on the fact that the IPID (a numeric field in the IP packet header) rises linearly on older systems and is thus predictable

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I/O benchmarks with Fio

30.11.2025

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

workload is pretty time-consuming. The current version of Fio is 1.57. I have created a package for Debian that the Ubuntu developers integrated into Ubuntu. If you have SUSE versions since SLES 9 and open

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Automate CentOS and RHEL installation with PXE

02.02.2021

Home » Archive » 2021 » Issue 61: Secur... »

timezone 19 timezone Europe/Vienna --isUtc --ntpservers 172.23.48.8,172.23.48.9 20 # user setup 21 user --name=example-user --password= --iscrypted --gecos="example-user" 22 # Disk partitioning

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Three full-text desktop search engines

28.11.2021

Home » Archive » 2021 » Issue 66: Inci... »

. By default, Tracker uses the variant popularized by the Nepomuk [9] project funded by the European Union between 2006 and 2008. The ontology is not hard-coded in Tracker and can be replaced by any other

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Kubernetes StatefulSet

05.02.2023

Home » Archive » 2023 » Issue 73: Datab... »

). In such an environment, a "dedicated" MariaDB container could be run as a replacement for a MariaDB VM: podman run --name maria --volume /var/pods/maria:/var/lib/mysql:Z --net pub_net --ip 192.168.1.10 --mac-address 12:34:56:78:9

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Proactive Monitoring

11.10.2016

Home » Archive » 2016 » Issue 35: Persi... »

(streams 22 (default :ttl 60 23 ; immediate indexing of all incoming events: 24 index 25 26 ; Forward errors, sorted by tags: 27 (where (state "error") 28 (where (tagged

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Flatpak, Snap, and AppImage

09.06.2018

Home » Archive » 2018 » Issue 45: Autom... »

as the kernel and all other processes. Isolation from the rest of the environment only occurs if you take care of this yourself with tools such as chroot [8], SELinux [9], or AppArmor [10]. Flatpak's structure

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Protecting your web application infrastructure with the Nginx Naxsi firewall

18.07.2013

Home » Archive » 2013 » Issue 15: What’... »

proxy_intercept_errors on; 17 ... 18 Filming location 19 ... 20 error_page 502 @ fallback; 21 proxy_next_upstream HTTP_500 http_502 http_503 http_504 timeout error invalid_header; 22 proxy_pass http

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