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13%
Managing virtual machines
30.11.2025
Home
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Archive
»
2012
»
Issue 09: Windo...
»
"creating" $vmname 09 10 virsh suspend rhstorage 11 virt-clone -o rhstorage -n $vmname -f /var/lib/libvirt/images/$vmname.qcow
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virsh resume rhstorage
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14 oldmac="52:54:00:B4:DF:EB" 15 newmac
13%
High availability clustering on a budget with KVM
30.11.2025
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Archive
»
2010
»
Issue 0: Active...
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06 I_T nexus information: 07 LUN information:
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LUN: 0 09 Type: controller 10 SCSI ID: deadbeaf1:0 11 SCSI SN: beaf10
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Size: 0
13
13%
Touring the top Knoppix debugging and rescue tools
30.11.2025
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2010
»
Issue 0: Active...
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="4096"
12
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# Last offset to try 14 final_offset="$(du -b "$DEV" | cut -f 1)" 15 16 # A free loop device 17 LOOP="/dev/loop2" 18 19 # Start 20 offset=0 21
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while [ "$offset" -lt "$final_offset" ]; do
13%
Debugging the Linux kernel with the Qemu emulator
30.11.2025
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2012
»
Issue 07: Xen v...
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08
default: 09 $(MAKE) -C $(KDIR) M=$(PWD) modules 10 endif 11
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clean:
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rm -rf *.ko *.o *.mod.c *.mod.o modules.order 14 rm -rf Module.symvers .*.cmd .tmp
13%
Server virtualization with Citrix XenServer
30.11.2025
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2010
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Issue 2: Backup...
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.Xensource.xenapi.Connection; 07 import com.Xensource.xenapi.Host;
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import com.Xensource.xenapi.Session; 09 import com.Xensource.xenapi.Task; 10 11 import de.pm.xenserver.utils.Server;
12
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public class TestAPI { 14 15
13%
An IT nomad's daily diary
30.11.2025
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Archive
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2011
»
Issue 6: Perfor...
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("http://spacewalk.tuxgeek.de/cobbler_api") 06 token = conn.login(user, password) 07
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cblr_systems = '/root/cobbler.csv' 09 10 if os.access(cblr_systems, os.F_OK): 11 print "Reading system configuration file %s" % cblr_systems
12
13%
Password protection with Phpass
30.11.2025
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2011
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Issue 5: Pen Te...
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doesn't just contain the hash itself; it also contains all the additional information that Phpass meets later to verify the password: $2a$
08
$zEIaPFIg... The two characters that follow the first dollar
13%
Checking password complexity with John the Ripper
30.11.2025
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2011
»
Issue 6: Perfor...
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c/s virtual
12
13
Benchmarking: OpenBSD Blowfish (x32) [32/64 X2]... DONE 14 Raw: 723 c/s real, 723 c/s virtual 15 16 Benchmarking: Kerberos AFS DES [48/64 4K]... DONE 17 Short: 378501 c/s real
13%
Container and hardware e-virtualization under one roof
30.11.2025
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2010
»
Issue 2: Backup...
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.5-23 05 pve-kernel-2.6.24-11-pve: 2.6.24-23 06 qemu-server: 1.1-16 07 pve-firmware: 1.0-5
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libpve-storage-perl: 1.0-
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09 vncterm: 0.9-2 10 vzctl: 3.0.23-1pve11 11 vzdump: 1.2-5
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vzprocps: 2.0.11-1dso2
13%
I/O benchmarks with Fio
30.11.2025
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2011
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Issue 5: Pen Te...
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the Buffer 01 [global] 02 ioengine=libaio 03 direct=1 04 filename=testfile 05 size=2g 06 bs=4m 07
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refill_buffers=1 09 10 [write] 11 rw=write
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write_bw_log
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14 [read] 15 stonewall 16 rw=read 17 write
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