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18%
Protect Your Servers with Nmap
23.07.2012
Home »  Articles  » 
 
.13.134.52):            Not shown: 994 filtered ports            PORT    STATE  SERVICE VERSION            22/tcp  open   ssh     OpenSSH 4.3 (protocol 2.0)            25/tcp  closed smtp            53/tcp  open   domain  ISC BIND 9
18%
Cloud Foundry realizes a service mesh
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © lightwise, 123RF.com
cddaa6-0886-44b3-9590-16717d5cd3c2", 20 "service_instance_guid": null, 21 "port": null, 22 "domain_url": "/v2/shared_domains/fb6bd89f-2ed9-49d4-9ad1-97951a573135", 23
18%
Accessing Fortran code with Python
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Kheng Ho Toh, , 123RF.com
the multiplication of two integers and the addition of two integers. Save the Fortran integer multiplication code function in file mult.f90, integer function multiply(a, b) integer, intent(in) :: a, b multiply
18%
Embarrassingly parallel computation
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Lucy Baldwin, 123RF.com
_Comm_size(MPI_COMM_WORLD, &nodenum); 21 long recieved[nodenum]; 22 long recvniter[nodenum]; 23 srand(SEED+myid); //Give rand() a seed value. Needs to be different on each node 24 25 if(myid != 0
18%
Rethinking RAID (on Linux)
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Lead Image © nikkikii, 123RF.com
unused devices: Listing 5 View RAID Details $ sudo mdadm --detail /dev/md0 /dev/md0: Version : 1.2 Creation Time : Sat Jan 9 15:22:29 2021 Raid Level
18%
Processor and Memory Metrics
12.02.2014
Home »  HPC  »  Articles  » 
B       hald-addon-input   ...    22.9 MiB +   4.0 MiB =  26.9 MiB       plasma-desktop  26.0 MiB +   5.7 MiB =  31.7 MiB       konsole (3)  28.3 MiB +   4.4 MiB =  32.7 MiB       kwin  41.0 MiB +   2.0 MiB =  43.0 MiB       Xorg 146.9
18%
Linux device mapper writecache
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © lightwise, 123R.com
Fmt Attr PSize PFree /dev/nvme0n1 vg-cache lvm2 a-- 232.88g 232.88g /dev/sdb vg-cache lvm2 a-- <6.37t <6.37t Say I want to use 90 percent of the slow disk: I will carve a logical
18%
Linux Writecache
19.11.2019
Home »  HPC  »  Articles  » 
           VG       Fmt  Attr PSize   PFree     /dev/nvme0n1 vg-cache lvm2 a--  232.88g 232.88g   /dev/sdb     vg-cache lvm2 a--   <6.37t  <6.37t Say I want to use 90% of the slow disk: I will carve a logical volume labeled slow  from the volume
18%
Benchmarking a new architecture
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
hosts [9]. A more apt comparison is found in Listing 2, with the results posted by a Raspberry Pi 400 [10], which is essentially a Raspberry Pi 4 (Broadcom BCM2711 Cortex-A72, ARM v8 quad-core running
18%
Real-World HPC: Setting Up an HPC Cluster
04.11.2011
Home »  HPC  »  Articles  » 
-INPUT -p tcp -m tcp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT ### begin ssh #-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j

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