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17%
The Ruby Version Manager (RVM) hands-on
30.11.2025
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©Mettusr, 123RF.com
a new Gemset (Listing 1). Listing 1 ~/.rvm/gemsets/global.gems LISTING Default Gemset bundler -v~>1.0.0 awesome_print shoutbox_client Configuration RVM is configured in ~/.rvmrc
17%
Protecting web servers with ModSecurity
30.11.2025
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© KrishnaKumar Sivaraman, 123RF.com
the SecDebugLogLevel parameter to specify verbosity, on a scale of 0 to 9, which issues comments on its own activities and the way it processes user-defined rules. Levels 4 or 5 are useful for fine tuning
17%
Workshop: Getting web and mail servers ready for IPv6
30.11.2025
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© suze, Photocase.com
to separate IP addresses in its configuration. That means you need to define a different separator – the new separator follows the option with the angled brackets: hostlist relay_from_hosts = <; 85.214.7.0
17%
How Upstart boots Ubuntu-based systems
30.11.2025
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debuted in Ubuntu 11.10. The initctl show-config command that gives an overview of the jobs has been around since Upstart 0.6.4 (Figure 3): initctl show-config -e > output

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