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Build a honeypot with real-world alerts
01.08.2019
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Lead Image © Bruce Rolff, 123RF.com
NEW -m tcp --dport 22 -j ACCEPT 10 -A INPUT -p udp --dport 5353 -j DROP 11 -A INPUT -s -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT 12 -A INPUT -m limit --limit 30/min -j
21%
Hunt down vulnerabilities with the Metasploit pen-testing tool
28.11.2021
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Lead Image © bluebay, 123rf.com
:/usr/sbin:/bin/sh bin:x:2:2:bin:/bin:/bin/sh sys:x:3:3:sys:/dev:/bin/sh (...) reboot; Connection closed by foreign host. Metasploitable runs many more insecure services that an Nmap scan brings to light (Listing 3
21%
Building Virtual Images with BoxGrinder and VMBuilder
07.01.2013
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 plugin for Amazon Simple Storage Service (Amazon S3) 20    - sftp plugin for SSH File Transfer Protocol 21    - ebs plugin for Elastic Block Storage 22    - local plugin for Local file system 23
21%
Building sustainably safe containers
02.02.2021
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Lead Image © it studiom1, 123RF.com
/lib/gcc/x86_64-pc-linux-gnu/9.3.0/lib* /lib64/ ---> 6f7d7264921c Step 4/6 : ADD gentoo-java.tar.gz / ---> afb2d5612109 Step 5/6 : ENV JAVA_HOME /opt/icedtea-bin-3.16.0 [...] 441dec54d0dd: Pushed 22bac475857f
20%
PowerShell Part 1: Retrieving System Information
18.03.2012
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, change Registry parameters, work with Active Directory, manipulate services, look at events, work with Windows Management Instrumentation (WMI), and much more. PowerShell is a Windows administrator’s best ... 8 7144 9564 54 1132 2XRedundancy 116 3 1016 4144 22 1188 appmgr It works the same way for services: PS> Get-Service -ComputerName XenApp1 ... , change Registry parameters, work with Active Directory, manipulate services, look at events, work with Windows Management Instrumentation (WMI), and much more. PowerShell is a Windows administrator’s best
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Tested: Autoconfiguring IPv6 clients
30.11.2025
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© Benis Arapovic, 123RF.com
, the MAC address (e.g., 00:11:22:33:44:55) is split down the middle, and two bytes containing FF:FE are inserted. This gives you 64 bits. If the basis is a globally unique address (which should be the case ... Most clients on a network need both an address and some environmental information such as a name server or a web proxy. This article investigates whether a recent operating system on an IPv6-only LAN ... IPv6 ... Tested: Autoconfiguring IPv6 clients
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Performance Health Check
13.06.2022
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) for a class B problem size. Therefore, I will run the EP, FT, and MG tests to check health performance. For class B, the EP test takes 5.46s, the FT test 17.26s, and the MB test 3.8s. If I stay with only
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Managing Linux Filesystems
13.06.2016
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Lead Image © Ulrich Krellner, 123RF.com
of filesystems from which to choose, and the ext2/3/4 series is likely known by everyone. If you work with a current distribution, you have probably met other filesystems, too (Table 1). Table 1
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First steps in IT automation by Rex
11.06.2014
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Lead Image © Konstantin Chagin , 123RF.com
_system_release = '12.04' 17 $eth0_mac = '08:00:27:c4:a1:d8' 18 $VirtInfo = { 19 virtualization_role => 'guest' 20 virtualization_type => 'virtualbox' 21 } 22 $memory_shared = '0' 23 $Network = { 24 networkdevices
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Measuring the performance health of system nodes
02.08.2022
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Lead Image © Peter Hermes Furian, 123RF.com
B time (s) Class C time (s) BT (4 cores) 11.95 66.5 272 CG (4 cores) 0.4 23.9 62.3 EP (6 cores) 1.4 5.46 21

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