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: Last three months
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13%
An IT nomad's daily diary
30.11.2025
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Archive
»
2011
»
Issue 6: Perfor...
»
\ 02 --hostname=foo.bar.de --mac- address=
00
:40:26:CA:10:DD \ 03 --kopts="stage=test app=www" --ksmeta="stage=test app=www" 04 # cobbler system edit --name=foo --interface=eth0 --mac=
00
:40:26:CA
13%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
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2011
»
Issue 6: Perfor...
»
Model"; 11 $work = "ebiz-tx";
12
$node1 = "WebServer"; 13 $node2 = "AppServer"; 14 $node3 = "DBMServer"; 15 $think =
0.0
* 1e-3; # as per test system 16 $dtime =
2.2
* 1e-3; # dummy service time 17 18
13%
Tracing applications with OProfile and SystemTap
30.11.2025
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2010
»
Issue 1: System...
»
. The target systems only require the systemtap-runtime RPM and the staprun program it contains. The following command creates a prebuilt binary kernel module for the target system: stap -r kernel-PAE-2.6.31.
12-174.2.22
13%
Connecting dissimilar IPsec implementations
30.11.2025
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2011
»
Issue 4: Secure...
»
versions worked best (and worst) together. My tests included the following: Kame/Racoon on Mac OS X and Linux Solaris 10 Windows Server 2008 Cisco-Router with IOS
12
Juniper SRX
13%
Managing virtual machines
30.11.2025
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2012
»
Issue 09: Windo...
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"creating" $vmname 09 10 virsh suspend rhstorage 11 virt-clone -o rhstorage -n $vmname -f /var/lib/libvirt/images/$vmname.qcow
12
virsh resume rhstorage 13 14 oldmac="52:54:
00
:B4:DF:EB" 15 newmac
13%
Business continuity for small to medium-sized enterprises
30.11.2025
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2012
»
Issue 08: FreeNAS
»
. In the test scenario, I defined a backup schedule with the following settings: Schedule: weekly Daily full backup: Monday – Friday 20:
00
Daily incremental backup: Monday – Friday 08:
00--18:00
, 30
13%
SSH Administration – Windows in a Unix World
30.11.2025
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2010
»
Issue 0: Active...
»
to a remote host, allow this with the command $ xhost +
and then export your display to the remote host on which you want to view the applications. $ export DISPLAY=hostname:
0.0
On the system
13%
High availability clustering on a budget with KVM
30.11.2025
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2010
»
Issue 0: Active...
»
06 I_T nexus information: 07 LUN information: 08 LUN: 0 09 Type: controller 10 SCSI ID: deadbeaf1:0 11 SCSI SN: beaf10
12
Size: 0 13
13%
Julia: A new language for technical computing
30.11.2025
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2012
»
Issue 10: Traff...
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.33 164.69 0.75 rand_mat_stat 3.37 39.34 11.64 54.54
22
.07 8.
12
rand_mat_mul 1.
00
1.18 0.70 1.65 8
13%
Touring the top Knoppix debugging and rescue tools
30.11.2025
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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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