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High availability clustering on a budget with KVM

30.11.2025

Home » Archive » 2010 » Issue 0: Active... »

: 09 bb:0f:e3:7f:3e:ab:c3:5d:32:78:85:04:a2:da:f1:61 root@host1 You need to distribute the public part, that is the /root/.ssh/id_rsa_cluster.pub file, to all nodes in the cluster. The Strict

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Galera Cluster for MySQL

30.11.2025

Home » Archive » 2012 » Issue 10: Traff... »

temporarily with Listing 5 Error Messages sh: /sbin/ifconfig: Permission denied 120405 8:29:02 [ERROR] WSREP: Failed to read output of: '/sbin/ifconfig | \ grep -m1 -1 -E '^[a-z]?eth[0-9

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Targeted defense against brute force attacks

30.11.2025

Home » Archive » 2011 » Issue 3: Are yo... »

-N sshguard The second command handles IPv6 packets. The next step is to extend the input chain so that network traffic is routed through the sshguard chain (Figure 2): sudo iptables -A INPUT -j ... 3

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OpenVPN with e-tokens in large-scale environments

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

version [9]. Listing 3 /etc/openvpn/ccd/John_Doe 01 # John Doe 02 ifconfig-push 192.168.1.3 255.255.255.0 03 push "topology subnet" 04 push "redirect-gateway" 05 push "dhcp-option DNS 192

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Archiving email and documents for small businesses

30.11.2025

Home » Archive » 2012 » Issue 08: FreeNAS »

} 20 \usepackage{ngerman} 21 \usepackage[official,right]{eurosym} 22 \\\begin{document}" > att1.tex 23 echo "\end{document}" > att3.tex 24 25 # Merge Latex file components 26 27 cat att1.tex searchkey

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Monitor your nodes with collectl

30.11.2025

Home » Archive » 2012 » Issue 09: Windo... »

25-E SSD [9] courtesy of Intel is mounted as /dev/sdd ext4 filesystem with the default options Open MPI [10] v1.5.4 NAS Parallel Benchmarks 3.3.1-MPI [11] Iozone [12] Daemon ... 9

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Mandatory access control with Tomoyo Linux

30.11.2025

Home » Archive » 2012 » Issue 09: Windo... »

compared with version 1.x are noticeable in Tomoyo versions 2.2.x and 2.3.x; the current version 2.5 only lacks a couple of features. Unfortunately, version 2.5 is only available in Linux kernel 3.2, which ... 9

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An IT nomad's diary

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

is all it takes to create your own application, just like for the domain (Listing 3). Listing 3 Creating the Application 01 # rhc-create-app -a spaceuploader -t perl-5.10 -l tscherf

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Security without firewalls

31.10.2025

Home » Archive » 2012 » Issue 12: NAS S... »

\Process\: %d (pid %p)\n\User\:%u\n\Host\: %c\n\Date\: $(date)\n\" | /usr/bin/mail -s "Connection to %d blocked" chrisbinnie@email.com) & The SPAWN command has lots of other uses, including communicating

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Touring the top Knoppix debugging and rescue tools

30.11.2025

Home » Archive » 2010 » Issue 0: Active... »

: 1487680 0 IO-APIC-fasteoi uhci_hcd:usb3 14 22: 22998855 0 IO-APIC-fasteoi psb@pci:0000:00:02.0 15 23: 3084145 0 IO-APIC-fasteoi hda_intel 16 24: 1 0

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