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19%
The top three SSH tricks
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © Fotoflash,Fotolia.com
-A INPUT -p tcp -s [IP address of allowed server] --dport 22 -j ACCEPT on the server to which you want to SSH. Trick 2: Copying Files Securely The SSH protocol also includes Secure Copy (SCP
19%
mpi4py – High-Performance Distributed Python
12.11.2020
Home »  HPC  »  Articles  » 
on four processes is shown in Listing 6. Notice that processes 3 and 4 didn’t contribute or do anything. Listing 5: Point-to-Point import numpy from mpi4py import MPI     comm = MPI.COMM_WORLD rank
19%
Network management with the IPRoute2 toolbox
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © donatas1205, 123RF.com
ARP cache and the IPv6 NDISC cache [3]. NDISC replaces the ARP mechanism in IPv6. The command ip neighbor show returns all cached mappings between MAC addresses and logical addresses for both IPv4
19%
Network backups with Amanda
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Tommaso Lizzul, 123RF.com
on the server. Many distributions only offer somewhat old versions of Amanda. If you want to install on Ubuntu 16.04 LTS, for example, you get Amanda 3.3.6, which was released in mid-2014. However, if you
19%
Safeguard and scale containers
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © cepixx, 123RF.com
recommended for size and safety considerations. Container operators will find a statically linked Go web server with an image size of just 6.7MB. If you need to compile Ruby Gems or Python Eggs
19%
Measuring the performance health of system nodes
02.08.2022
Home »  Archive  »  2022  »  Issue 70: Defen...  » 
Lead Image © Peter Hermes Furian, 123RF.com
B time (s) Class C time (s) BT (4 cores) 11.95 66.5 272 CG (4 cores) 0.4 23.9 62.3 EP (6 cores) 1.4 5.46 21
19%
Logical Bombs for Fun and Benchmarking
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
such invocation is essentially a pure processor workload that will maximally use up to one CPU core while taking up close to zero I/O or memory resources. The top [3] command displays a perfect 1.00 load average
19%
Exploring the most famous performance tool
16.08.2018
Home »  Archive  »  2018  »  Issue 46: CMS S...  » 
Lead Image © Lucy Baldwin, 123RF.com
). Figure 3: The top command as featured in Mac OS. In the Mac world, the summary area is called global state [6], and memory regions are adjusted to match the Mach kernel's modeling of these resources
19%
Whitepaper: AMD “Bulldozer” Architecture
10.11.2011
Home »  HPC  »  Vendors  »  AMD  » 
 
. • 6 and 8 cores available • 1/2 socket; 2 memory channels • Less than 5 watts per core3 • Easily integrated into existing AMD Opteron 4000 Series platforms
19%
Coordinating distributed systems with ZooKeeper
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © smileus, 123RF.com
://zookeeper.apache.org ZooKeeper standalone: http://zookeeper.apache.org/doc/r3.4.6/zookeeperStarted.html ZooKeeper servers with replication: http://zookeeper.apache.org/doc/r3.4.6/zookeeper

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