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Monitoring network computers with the Icinga Nagios fork

30.11.2025

Home » Archive » 2010 » Issue 1: System... »

141.20.108.124 07 active_checks_enabled 1 08 passive_checks_enabled 0 09 max_check_attempts 3 10 check_command check-host-alive 11

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Creating an SFTP jail

30.11.2025

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

-local 04 bash#> 05 bash#> pkgadd -d tcp_wrappers-7.6-sol10-sparc-local 06 07 The following packages are available: 08 1 SMCtcpdwr tcp_wrappers 09 (sparc) 7.6 10 11 Select package

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VMware Server 2.0 on recent Linux distributions

30.11.2025

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

revealed the issue – the vmware-hostd process had crashed with a segmentation fault (Listing 1). Listing 1 Segmentation Fault in vmware-hostd 01 Dec 6 13:30:08 virtual kernel: [ 175

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Virtualization via Zones

30.11.2025

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

@opensolaris:~# zonecfg -z web1 02 03 web1: No such zone configured 04 Use 'create' to begin configuring a new zone. 05 zonecfg:web1> create 06 zonecfg:web1> set zonepath=/zones/web1 07 zonecfg:web1> set autoboot=true 08

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Shell scripts: Equal rights for Unix derivatives and Linux

30.11.2025

Home » Archive » 2010 » Issue 2: Backup... »

-Specific PATH 01 PATH=/bin:/usr/bin:/usr/local/bin 02 case `uname -r` in 03 IRIX*) 04 PATH=$PATH:/etc/:/usr/bsd 05 ;; 06 HP-UX*) 07 PATH=$PATH:/sbin 08 ;; 09 ... 10 esac

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Configuring the JBoss application server

30.11.2025

Home » Archive » 2011 » Issue 4: Secure... »

."; 04 String s04 = "Hello, Linux Magazine!"; 05 %> 06 07 08

<%= message%>

09

<%= s04%>

10 <%= new java

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Tracing applications with OProfile and SystemTap

30.11.2025

Home » Archive » 2010 » Issue 1: System... »

: all cores 0x40: core: this core 0x30: prefetch: all inclusive 0x10: prefetch: Hardware prefetch only 0x00: prefetch: exclude hardware prefetch 0x08: (M)ESI: Modified 0x04: M

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Managing virtual machines

30.11.2025

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

the script results. Listing 1 clone-vm 01 #!/bin/sh 02 03 export LIBVIRT_DEFAULT_URI=qemu:///system 04 05 lastid=$(tail -1 vm-list.txt) 06 newid=$(($lastid+1)) 07 vmname=vm$newid 08 echo

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Using the Expect scripting environment

30.11.2025

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

$spin 08 @$molecule.xyz 09 10 END 11 12 done 13 done The Gaussian 09 (g09) computational chemistry simulation package uses a small input that tells it what type of predictions are desired and which

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The fail2ban intrusion prevention framework

30.11.2025

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

in the directory structure is clear once you've installed it. Script Kiddies and Port 22 As I mentioned, the most popular usage of fail2ban is stopping probes that try every username ever conceived by mankind

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<%= message%>

<%= s04%>