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Network performance in-terminal graphics  tools
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Lucy Baldwin, 123RF.com
$ ethstats -c1 eth0: 0.03 Mb/s In 0.14 Mb/s Out - 51.4 p/s In 38.8 p/s Out requests a single sample and shows a somewhat idle system. Grand Finale With a nearly inexhaustible supply
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First steps in IT automation by Rex
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Konstantin Chagin , 123RF.com
_system_release = '12.04' 17 $eth0_mac = '08:00:27:c4:a1:d8' 18 $VirtInfo = { 19 virtualization_role => 'guest' 20 virtualization_type => 'virtualbox' 21 } 22 $memory_shared = '0' 23 $Network = { 24 networkdevices
12%
TCP Stealth hides open ports
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © momo5287, 123RF.com
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 10 | Acknowledgment Number | 11 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 12 | Data | |U|A|P|R|S
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Graphite: Collect and Visualize Numeric Data
30.07.2014
Home »  HPC  »  Articles  » 
($one, $two, $three) = map { $_ x 4096 } 'a'..'c';   $s .= $one; $s .= $two; $s .= $three;   my $temp; for (my $i=0; $i<12288; $i++) {    $temp=substr($s,length($s)-1,1);    $s=$temp.$s;    $s = substr($s,0,12288); }   $elapsed
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mpi4py – high-performance distributed Python
30.11.2020
Home »  Archive  »  2020  »  Issue 60: Secur...  » 
Lead Image © liu liming, 123RF.com
): 11 12 s = 0.0 13 s += h * f(a) 14 for i in range(1, n): 15 s += 2.0 * h * f(a + i*h) 16 # end for 17 s += h * f(b) 18 return (s/2.) 19 # end def 20 21 22 # Main section 23 comm = MPI
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Acquiring a Memory Image
20.05.2014
Home »  Archive  »  2014  »  Issue 20: IPv6...  » 
Lead Image © lightwise, 123RF.com
.168.1.129 -p 3260 specifying that the target Windows computer with the Subject USB stick is at 192.168.1.129 and listening on port 3260. The system connects to targets iqn.2008-02.com.f-response.cr0wn-d00
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Many Clouds, One API
22.08.2011
Home »  Articles  » 
 
[inst.id] = inst.state 08 summary[inst.state] += 1 09 state 10 end 11 total = summary.values.inject(0) { |sum, i| sum += i } 12 puts "Found #{total} instances in the following states:" 13 summary ... to migrate easily to other providers at a later stage. Apache Deltacloud addresses this issue by offering a standardized API definition for infrastructure as a service (IaaS) clouds with drivers for a range
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Intruder Tools
13.12.2011
Home »  Articles  » 
 
scanner’s -sL option (nmap -sL ) performs a reverse DNS lookup on every IP address in the scan and queries the DNS server each time an IP address is listed. In addition to these standard DNS tools, a pair ... Professional attackers have much more pointed at your site than just Nmap, and you should too if you want to test your network’s security. We’ll show you some tools intruders use to gather
12%
MPI Apps with Singularity and Docker
18.03.2020
Home »  HPC  »  Articles  » 
.825889E-02       12  0.733083      0.734229      0.726876E-02       13  0.735336      0.736293      0.641230E-02       14  0.737221      0.738029      0.574042E-02       15  0.738814      0.739502      0
12%
StarCluster Toolkit: Virtualization Meets HPC
16.01.2013
Home »  HPC  »  Articles  » 
node. To keep an eye on the currently running instances, use the listclusters option (Listing 6). Listing 6: Listing Running Clusters $ starcluster listclusters ... Uptime: 0 days, 00:04:05 Zone: us

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