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18%
VTP for VLAN management
04.10.2018
Home »  Archive  »  2018  »  Issue 47: Findi...  » 
Lead Image © bluedarkat, 123RF.com
active Fa0/1, Fa0/2, Fa0/3, Fa0/4, Fa0/5, Fa0/6, Fa0/7, Fa0/8, Fa0/9, Fa0/10, Fa0/11, Fa0/12 10
18%
Building Big Iron in the Cloud with Google Compute Engine
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Zavalnyuk Sergey, 123RF.com
/joe/.ssh/google_compute_engine -A -p 22 joe@1.2.3.4 -- 11 Warning: Permanently added '1.2.3.4' (ECDSA) to the list of known hosts. 12 Enter passphrase for key '/home/joe/.ssh/google_compute_engine': 13 Linux gcerocks-instance-1 3
18%
Measuring the performance of code
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Lucy Baldwin, 123RF.com
->tv_nsec) * 1E-9; 24 } 25 26 int main(int argc, char* argv[argc+1]) { 27 if (argc < 2) { 28 fprintf(stderr, "Usage: %s NNN, NNN iterations\n", 29 argv[0]); 30 return EXIT_FAILURE; 31 } 32
18%
High-Performance Python 3
19.09.2019
Home »  HPC  »  Articles  » 
 = np.array([10, 20, 30, 40])   print('a+b:\n', add_ufunc(a, b)) The answer should be: a+b:  [11 22 33 44] In the previous example, you had to put everything that was to run on the GPU into a single Numba ... High-Performance Python 3
18%
Monitor your network infrastructure with SNMP
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © lightwise, 123RF.com
$ROCOMMUNITY $HOST .1.3.6.1.2.1.4.22.1.3 # memory_used snmpwalk -v1 -Oqs -c $ROCOMMUNITY $HOST .1.3.6.1.2.1.25.2.3.1.6.101 # CPU-load-1 snmpwalk -v1 -Oqs -c $ROCOMMUNITY $HOST 1.3.6.1.4.1.2021.10
18%
Understanding Layer 2 switch port security
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
Lead Image © Taffi, Fotolia.com
.0.0.0.18576: S 1905213613:1905213613(0) win 512 91:33:3b:3:a0:f5 d6:11:53:f:5e:c8 0.0.0.0.8066 > 0.0.0.0.49105: S 428779274:428779274(0) win 512 c4:27:40:74:3d:11 b9:a5:d3:1d:e:bf 0.0.0.0.8772 > 0.0.0.0.42343: S 1206065071
18%
Filesystem Murder Mystery
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © Lucy Baldwin, 123RF.com
Unexplained rename() delay: https://twitter.com/jsaryer/status/1069831718389960704 GitHub, James Saryerwinnie: https://gist.github.com/jamesls/9d52c7b3a19491f4d14c2d487515115f rename(2) man page: https
18%
Tuning I/O Patterns in Fortran 90
04.12.2013
Home »  HPC  »  Articles  » 
3 type rec 4 integer :: x, y, z 5 real :: value 6 end type rec 7 8 integer :: counter 9 integer :: counter_limit 10 integer :: ierr 11 12 type (rec) :: my
18%
Visualizing time series data
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © Maxim Kazmin, 123RF.com
't connect to $remote_host:$remote_port: $@ \n"; 17 18 19 while() { 20 my @lavg = Sys::CpuLoad::load(); 21 my $ts=time(); 22 print $socket "system.loadavg_1min $lavg[0] $ts\n"; 23 print $socket "system ... 22
18%
Security first with the Hiawatha web server
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Tatiana Popov, 123RF.com
toolkit for joomla UrlToolkit { ToolkitID = joomla Match base64_encode[^(]*\([^)]*\) DenyAccess Match (<|%3C)([^s]*s)+cript.*(>|%3E) DenyAccess Match GLOBALS(=|\[|\%[0-9A-Z]{0,2}) Deny

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