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42%
Building a port scanner in Python
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © Leo Blanchette, 123RF.com
. For each port in the range, it creates a new thread that runs the scan_port function (line 18). This approach leverages the power of multithreading to check multiple ports in parallel, significantly speeding
42%
Manage your configuration with Rudder
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Photo by Karla Car on Unsplash
| Groups in the left-hand menu. The great thing about this arrangement is that groups can be managed dynamically. If a new node appears in the environment that corresponds to one of the parent groups
42%
Automating repetitive tasks
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Photo by Greg Rakozy on Unsplash
to execute automated processes. Processes are triggered by specific events, such as an incoming email (Figure 1). For example, if you want to enter data from a new customer request automatically into an Excel
42%
AlmaLinux’s ELevate Migration Tool
11.03.2026
Home »  Articles  » 
Lead Image © sergeyback, 123RF.com
_pam_pkcs11_module_check.confirm=True Once you are ready, launch the upgrade by issuing the final command: $ sudo leapp upgrade You will need to reboot manually afterwards (Figure 4). A new entry
42%
Managing computers with Rex
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Stanislav Rishnyak, 123RF.com
to manage many computers, you can group them in the Rexfile: group "intranet" => "marvin", "zaphod"; This line must occur before the first task. This example creates a new group called intranet, which
42%
Win-win with Cygwin
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Steve Mann, 123RF.com
the Cygwin Terminal, the Cygwin binaries will be in your path. Close and re-open any CMD windows to use the new environment variable. Command Line As a Windows administrator, chances are good that you don
42%
Monitoring with Zabbix
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Les Cunliffe, 123RF.com
. Below this, you can select a matching host group, or create a New host group . The default preconfigured groups are simply examples. You can then set up more technical parameters, such as the DNS name, IP
42%
Container and hardware e-virtualization under one roof
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Maxim Kazmin, 123R
the Container Type (OpenVZ) and the template you just installed, debian-5.0-joomla_1.5.15-1 , then type a hostname, a password, and the required network parameters. Then you can and click create to deploy a new
42%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alterfalter, 123RF.com
are nested in $ signs. After creating the configuration files and storing them in etc/objects, you still need to tell Icinga by adding a new cfg_file=/usr/local/icinga/etc/objects/object.cfg to the main
42%
BlackHat USA 2010
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
 
with a hidden IFRAME, you might never realize that it happened. The security talks are especially worrying – the ones in which researchers don't find new vulnerabilities but simply quantify existing ones

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