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51%
RAM revealed
30.11.2025
Home
»
Archive
»
2011
»
Issue 6: Perfor...
»
chips with 128Mx8 organization (1-Gb chips) 5.132 2.57 AL28M72
A
8BJH
9
S 1 DDR
3
, Registered, ECC, 1 rank 2.241 2.24 AQ12M72E8BKH
9
S 4
51%
High availability clustering on a budget with KVM
30.11.2025
Home
»
Archive
»
2010
»
Issue 0: Active...
»
" domain="kvm-node1"/> 47
48
49
50 51 -->
52
51%
pfSense firewall and router distribution
30.11.2025
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»
Archive
»
2012
»
Issue 07: Xen v...
»
Chris Buechler and Scott Ullrich were unhappy. Although the FreeBSD m0
n
0wall distribution gave them a quick option for setting up a firewall and a router, it was designed for use on embedded systems
50%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
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2012
»
Issue 07: Xen v...
»
_ERR_GENERIC;; 37
3
) return $OCF_NOT_RUNNING;; 38 esac 39 fi 40 41 ocf_log debug "Asterisk PBX monitor succeeded" 42 return $OCF_SUCCESS 43 } Listing
9
asterisk
50%
The next generation of Internet connectivity
30.11.2025
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Archive
»
2011
»
Issue 3: Are yo...
»
_seq=
3
ttl=
52
time=103 ms Personally, I prefer using tunnels over Teredo and 6to4 for several reasons – the simplest is that it works with a public IP or behind a NAT box (well, usually). Tunnels ...
3
49%
Creating and evaluating kernel crash dumps
31.10.2025
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2012
»
Issue 11: Cloud...
»
kernel sles:~ # grep crash /proc/cmdline root=/dev/disk/by-uuid/10
a
83ffe-5
a
9
f-48
a
2-b8cb-551c2cc6b42d resume=/dev/sda
3
splash=silent text showopts crashkernel=128 sles:~ # /etc/init.d/boot.kdump status
49%
Storage system with OpenSolaris and Comstar
30.11.2025
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»
2010
»
Issue 0: Active...
»
that follow. The iSCSI client (or initiator in iSCSI-speak) in our lab is Ubuntu
9
.10. Listing
3
shows the steps to mount a Comstar block device with the Linux Open iSCSI initiator. Listing
3
Block
49%
Network backup with Burp, Obnam, and Backshift
30.11.2025
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»
Archive
»
2012
»
Issue 10: Traff...
»
existing backups, enter: burp -
a
l -b a Of course, more complex queries are also possible. For example, burp -
a
l -b
3
-r
lists all of the files in backup
3
that match the "regular
49%
I/O benchmarks with Fio
30.11.2025
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2011
»
Issue 5: Pen Te...
»
tests and take some of the load off the SSD with the fstrim command from a recent util-linux package [
9
]. The workload from Listing
3
, which measures the IOPS with a variable block size between 2Kb
49%
Script utilities in depth: grep, awk, and sed
30.11.2025
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2011
»
Issue 4: Secure...
»
, appearing in alphabetical order but allowing intervening letters, you can use the search expression: "
a
.*e.*i.*o.*u" This would match lines 1, 2, and
3
. If you want lines containing all five vowels in order
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