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19%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
/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
19%
Detecting intruders with Suricata
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © Kurhan, 123RF.com
also enter information for American Express cards: alert tcp any any <> \ any any (pcre:"/3\d{3}\ (\s|-)?\d{6}(\s|-)?\d{5}/";\ msg:"American Express card number \ detected
19%
Even benchmarks can be easy to handle
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
platforms. As you go through stress's options, you can visualize its effect on the system via Byobu's [3] status line, the Gnome System Monitor [4], the handy top [5], or Apple Activity Monitor on a Mac[6
19%
Fedora 18 for Admins
11.06.2013
Home »  Articles  » 
 
simply be installed from a standard Fedora system with Gnome 3.6.2. Taming Anaconda In spite of all the installer’s deficiencies, any admin should be able to install Fedora 18 in the desired manner
19%
Managing Linux Filesystems
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © Ulrich Krellner, 123RF.com
of filesystems from which to choose, and the ext2/3/4 series is likely known by everyone. If you work with a current distribution, you have probably met other filesystems, too (Table 1). Table 1
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%
Setting up and managing IPv6 on Windows Server 2016
09.06.2018
Home »  Archive  »  2018  »  Issue 45: Autom...  » 
Lead Image © Photo by mathyas kurmann Unsplash.com
in days, hours, minutes, and seconds (e.g., 1d2h3m4s). The default value for this setting is infinite. store: Specifies how to store the IPv6 address. Either active (the address is removed when ... Windows Server 2016 automatically prefers IPv6 addresses, if available, but the manual configuration steps differ from IPv4 and necessitate new tools. Here's how to approach IPv6 in your daily admin ... IPv6 on Windows Server 2016 ... Setting up and managing IPv6 on Windows Server 2016
19%
File Compression for HPC
10.11.2021
Home »  HPC  »  Articles  » 
 package-list.txt Output filename is: package-list.txt.lrz package-list.txt - Compression Ratio: 2.604. Average Compression Speed:  0.000MB/s. Total time: 00:00:00.04 By default, lrzip does not overwrite the original file
19%
IPv6 security on IPv4-only networks
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © foottoo, 123RF.com
6105) [3] and DHCPv6-Shield [4]. These functions are implemented on switches and referred to as First Hop Security. SEND (Secure Neighbor Discovery) [5] is an approach that relies on cryptographically ... Even though corporations are looking to move to IPv6, in some situations networks still rely exclusively on IPv4. We discuss ways to minimize delays and unsatisfactory behavior in mixed IPv4/IPv6 ... IPv6 on IPv4 Security ... IPv6 security on IPv4-only networks
19%
Why Good Applications Don’t Scale
13.10.2020
Home »  HPC  »  Articles  » 
. Amdahl’s Law says the speedup is 1.00 (i.e., the starting point). Notice that as the number of processors increases, the wall clock time of the parallel portion decreases. The speedup a increases from 1.00

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