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16%
Tuning Ansible
09.05.2018
Home »  Archive  »  2018  »  Issue 45: Autom...  » 
, and by default, it simply uses an SSH daemon that already exists on my destination client machine(s). Table 1 : The Server Side of Ansible on Ubuntu 16.04     ansible python
16%
Real-time monitoring with Graphite
30.01.2024
Home »  Archive  »  2024  »  Issue 79: Monit...  » 
Lead Image © peshkov, 123RF.com
on the interaction of three software components: (1) Carbon queries the various time series data; (2) Whisper, the database library, handles the task of storing the data; and (3) Graphite-Web provides the user
16%
Interprocess communication essentials in Perl
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Carsten Reisinger, 123RF.com
ways, and then kill everything, leaving no lingering processes (Listing 3). Listing 3 Asynchronous Communication 01 Use IO:Handle; 02 03 pipe(READFROMCHILD, WRITETOPARENT); 04 pipe
16%
Validating Docker containers
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © 36clicks, 123RF.com
in the container? 20 - name: "mysql client exists" 21 path: '/usr/bin/mysql' 22 shouldExist: true 23 24 # Does the MySQL configuration file exist at the right place? 25 - name: "my.cnf exists and has appropriate
16%
Protect Azure resources with Network Security Groups
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © ogm & roywylam, 123RF.com
to the rule. As the Destination , select the IP address of the VM; now the rule is as specific as possible. As Destination ports , you can specify 3368, 22 for the two services Remote Desktop Protocol (RDP
16%
Open source intelligence tools for pen testing
09.06.2018
Home »  Archive  »  2018  »  Issue 45: Autom...  » 
Lead Image © Natalia Lukiyanova, 123RF.com
now have interfaces, including Nmap. Figure 3 shows a typical Nmap scan using the OSScan option (-0) that you've seen a thousand times. Notice with this particular scan that Nmap is having a hard time
16%
Life cycle management with Foreman and Puppet
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
© auremar, 123RF.com
[3] runs on the client. Facter collects information about the system and forwards it to the Puppet master when Puppet runs. On the basis of collected facts, the master can generate a dynamic catalog
16%
Modern network diagnostics on Windows and Linux
27.05.2025
Home »  Archive  »  2025  »  Issue 87: Light...  » 
Photo by Nk Ni on Unsplash
incoming connections. Looking closely at this output, you should be familiar with what normal, expected services are running on your machine. For instance, you might see services like SSH on port 22, HTTP
16%
A decentralized communication platform
30.11.2020
Home »  Archive  »  2020  »  Issue 60: Secur...  » 
Lead Image © Mipan, Fotolia.com
with Jami's search function – but this does not require providing any personal information. Jami is available for Linux, macOS, and Windows; smartphones with Android [2] and iOS [3]; and TVs with Android TV
16%
Network monitoring for Windows
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© spectral, 123RF.com
Instrumentation (WMI), the Simple Network Management Protocol (SNMP), and, in the case of a compatible router (e.g., Cisco), NetFlow or sFlow. In the current version, you don't need to license NetFlow sensors

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