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21%
Protect Your Servers with Nmap
23.07.2012
Home »  Articles  » 
 
-sSf 12.34.56.78 My personal preference for outputing results to a log is this switch: # nmap -sS 12.34.56.78 -oN filename If you want screeds of detail, then it's also simple just to add
21%
Give your servers the once over with Nmap
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© ragsac, 123RF.com
.34.56.78 -oN filename If you want screeds of detail, then it's also simple just to add the verbosity switch (twice for even more detail): # nmap -vv -sS 12.34.56.78 To truly avoid detection (in conjunction
21%
Warewulf Cluster Manager – Master and Compute Nodes
22.05.2012
Home »  HPC  »  Articles  » 
dhcp.x86_64 12:4.1.1-25.P1.el6_2.1 will be installed ---> Package mod_perl.x86_64 0:2.0.4-10.el6 will be installed --> Processing Dependency: perl(BSD::Resource) for package: mod_perl-2.0.4-10.el6.x86
21%
Nmon: All-Purpose Admin Tool
17.12.2014
Home »  HPC  »  Articles  » 
distros even have nmon in their Yum repositories. I’m using CentOS 6.6, and nmon isn’t available from the standard Yum repos, so I downloaded the binary from the website. Nmon Examples One of the best
21%
Modern Fortran – Part 2
15.12.2016
Home »  HPC  »  Articles  » 
are over i = 2,n − 1 and j = 2,n −1. Here is how you can write the iteration over the domain using array notation: a(2:n-1,2:n-1) = 0.25 * &     (a(1:n-2,2:n) + a(3:n,2:n) + a(2:n,1:n-2) + a(2:n,3:n
21%
Podman for Non-Root Docker
05.08.2024
Home »  HPC  »  Articles  » 
.io/library/ubuntu       latest      35a88802559d  7 weeks ago     80.6 MB docker.io/library/hello-world  latest      d2c94e258dcb  15 months ago   28.5 kB Listing 12: Checking for GFortran $ podman run -it ubuntu-dev2 /bin/bash root
21%
New features in PHP 7.3
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © MIR, Fotolia.com
, PHP programmers should now use the mb_ereg_ functions. When accessing ODBC and DB2 databases via the PDO_ODBC driver, the pdo_odbc.db2_instance_name setting is history. Expired Support for PHP 5.6
21%
Finding and recording memory errors
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © lightwise, 123RF.com
hour. In a previous article [6], I wrote a general introduction to ECC memory, specifically about Linux and memory errors, and how to collect correctable and uncorrectable errors. In typical systems
21%
CPU affinity in OpenMP and MPI applications
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Lead Image © podfoto, 123RF.com
,32 1,33 2,34 3,35 4,36 5,37 6,38 7,39 8,40 9,41 10,42 11,43 12,44 13,45 14,46 15,47 16,48 17,49 18,50 19,51 20,52 21,53 22,54 23,55 24,56 25,57 26,58 27,59 28,60 29,61 30,62 31,63 The lstopo tool
21%
Parallel Julia – Jumping Right In
29.06.2012
Home »  HPC  »  Articles  » 
Item(bottom_func,(),false,(thunk(AST(lambda({},{{#1, #2}, {{#1, Any, 2}, {#2, Any, 2}}, {}}, begin #1 = top(Array)(top(Any),2) top(arrayset)(#1,1,"n0") top(arrayset)(#1,2,"n2") #2 = #1 return addprocs_ssh(#2) end ))),1),(),(),intset(1

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