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18%
Building a port scanner in Python
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © Leo Blanchette, 123RF.com
installed on your system. If Python is not installed, you can install it with: sudo apt install python3 With VS Code and the necessary extensions set up, you are now ready to start developing your port
18%
Getting the most from your cores
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
Lead Image © ktsdesign, 123RF.com
, the exact details of these components varies from processor to processor, making CPU utilization comparison difficult. Current processors can have shared L3 caches across all cores or shared L2 and L1 caches
18%
New in PostgreSQL 9.3
09.01.2013
Home »  Archive  »  2013  »  Issue 18: New W...  » 
Lead Image © Nuno Andre, 123RF.com
---------------------------------------------------------------------------------------------------- 20 Seq Scan on mail (cost=0.00..5628.25 rows=4 width=961) (actual 21 time=2.401..1519.809 rows=672 loops=1) 22 Filter: (msg ~ '(updatable|views)'::text) 23 Rows Removed by Filter: 40148 24 ... The new PostgreSQL 9.3 release introduces several speed and usability improvements, as well as SQL standards compliance. ... PostgreSQL 9.3 ... New in PostgreSQL 9.3
18%
High-Performance Python 2
22.08.2019
Home »  HPC  »  Articles  » 
the Code $ python3 Python 3.7.3 (default, Mar 27 2019, 22:11:17)  [GCC 7.3.0] :: Anaconda, Inc. on linux Type "help", "copyright", "credits" or "license" for more information. >>> import
18%
Tuning I/O Patterns in C
31.07.2013
Home »  HPC  »  Articles  » 
. The OS then takes these requests and acts upon them, returning a result to the application. Understanding the I/O pattern from an application’s perspective allows you to focus on that application. Then
18%
Network analysis with Wireshark
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Reinhard Eisele
for the type of analysis you want to perform. Capture filters use the Libpcap syntax. To filter for a specific MAC address, you would do the following in Libpcap syntax: ether host 00:25:4b:bd:24:94 However
18%
Mocking and emulating AWS and GCP services
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © Juri Samsonov, Fotolia.com
): self.name = name self.value = value def save(self): s3 = boto3.client("s3", region_name="us-east-1") s3.put_object(Bucket="mybucket", Key=self.name, Body=self.value) def test_s
18%
Business continuity for small to medium-sized enterprises
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Andrea, Fotolia.com
) or even be booted in a virtual environment. This virtual boot function is perfect for smaller companies. It lets administrators boot a ShadowProtect image directly in the free VirtualBox [3] environment
18%
Accessing Fortran code with Python
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Kheng Ho Toh, , 123RF.com
a shared object (.so) suitable for Python to import: $ ls -s total 120 112 secretcode.cpython-37m-x86_64-linux-gnu.so 4 secret.f90 4 secret.pyf To test the code, run python3 (Listing 4). Remember
18%
Kernel and driver development for the Linux kernel
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © psdesign1, Fotolia.com
.10 Kernel 3.10 no longer supports the create_proc_entry() function: proc_file = create_proc_entry("example_file", S_IRUGO, proc_dir ); if (proc_file) { proc_file->read_proc = proc_read; proc

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