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100%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
Home
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Archive
»
2010
»
Issue 1: System...
»
friday
00:00-24:00
10 saturday
00:00-24:00
11 }
12
13
define timeperiod{ 14 timeperiod_name wochentags 15 alias Robot Robot
90%
Monitor your nodes with collectl
30.11.2025
Home
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Archive
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2012
»
Issue 09: Windo...
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:sda]RKBytes [DSK:sda]Writes 21 [DSK:sda]WMerge [DSK:sda]WKBytes [DSK:sda]Request [DSK:sda]QueLen \[DSK:sda]Wait [DSK:sda]SvcTim [DSK:sda]Util
22
20120310
13
:39:10 sdb 0 0 0 2 4 24
12
0
12
2 0 sda 0 0 0 0 0 0 0 0 0 0
85%
Storage system with OpenSolaris and Comstar
30.11.2025
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Archive
»
2010
»
Issue 0: Active...
»
/nsswitch.conf (Konfigurieren der Namensauflösung) 08 ... 09 hosts files dns 10 ipnodes files dns 11 ...
12
# vi /etc/hosts
13
::1 localhost 14 127.0.0.1 localhost 15 192.168.1.200 myiscsiserver myiscsiserver.local loghost 16
84%
Checking password complexity with John the Ripper
30.11.2025
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Archive
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2011
»
Issue 6: Perfor...
»
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
84%
Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
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2011
»
Issue 6: Perfor...
»
.network.type = veth 04 lxc.network.flags = up 05 lxc.network.link = br0 06 lxc.network.hwaddr = 08:
00:12
:34:56:78 07 #lxc.network.ipv4 = 0.0.0.0 08 lxc.network.ipv4 = 192.168.1.69 09 lxc.network.name = eth0 10 lxc
83%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
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Archive
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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
82%
Tracing applications with OProfile and SystemTap
30.11.2025
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2010
»
Issue 1: System...
»
("------------------------------------------- ----------------------\n") 09 } 10 11 probe tcp.receive {
12
printf(" %15s %15s %5d %5d %d %d %d %d %d
13
%d\n", saddr, daddr, sport, dport, urg, 14 ack, psh, rst, syn, fin) 15
82%
Connecting dissimilar IPsec implementations
30.11.2025
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2011
»
Issue 4: Secure...
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dh_group modp1024; 09 } 10 generate_policy off; 11 }
12
13
sainfo address 192.168.2.0/24 any address 172.16.0.0/16 any { 14 pfs_group modp1024; 15 encryption_algorithm aes256; 16
82%
An IT nomad's daily diary
30.11.2025
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2011
»
Issue 6: Perfor...
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\ 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
79%
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
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virsh resume rhstorage
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14 oldmac="52:54:
00
:B4:DF:EB" 15 newmac
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