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100%
Storage system with OpenSolaris and Comstar
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Aleksandr Fomenkov, 123RF.com
.168.209.200 07 192.168.209.200:3260,1 iqn.1986-03.com.sun:02:8f4cd1fa-b81d-c42b-c008-a70649501262 08 # iscsiadm -m node 09 # /etc/init.d/open-iscsi restart 10 # fdisk -l 11 Disk /dev/sdb: 2147 MB, 2147418112 bytes
99%
Monitor your nodes with collectl
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© nobeastsofierce, 123RF.com
Commands = -f /var/log/collectl -r00:00,7 -m -F60 -s+YZCD --iosize These options allow me to monitor CPU, disk, and network in brief mode and slab, processes, and disk in detailed mode. I also added the ability
95%
ARP cache poisoning and packet sniffing
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© elisanth, 123RF.com
Destination MAC address Listing 1 Nemesis arp Packets 01 $ while true 02 > do 03 > sudo nemesis arp -v -r -d eth0 -S 192.168.1.2 -D 192.168.1.133 -h 00:22:6E:71:04:BB -m 00:0C:29:B2
93%
Checking password complexity with John the Ripper
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
/64 BS]... DONE 07 Many salts: 45898 c/s real, 45898 c/s virtual 08 Only one salt: 45108 c/s real, 45186 c/s virtual 09 10 Benchmarking: FreeBSD MD5 [32/64 X2]... DONE 11 Raw: 10995 c/s real, 10995
89%
An IT nomad's daily diary
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Kateryna Pruchkovska, 123RF.com
I've just completed my first meeting with customers, and they look happy enough but not totally convinced. Maybe they're wondering whether I have bitten off more than I can chew. After all, I'm
88%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alterfalter, 123RF.com
05 monday 00:00-24:00 06 tuesday 00:00-24:00 07 wednesday 00:00-24:00 08 thursday 00:00-24:00 09
86%
Monitoring virtualization environments with Nagios and Icinga
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Sergej Khackimullin, 123RF
CPU PROCESS/NLWP # 173 daemon 17M 11M sleep 59 0 3:18:42 0.2% rcapd/1 # 17676 apl 6916K 3468K cpu4 59 0 0:00:00 0.1% prstat/1 # ... # ZONEID NPROC SWAP RSS MEMORY TIME
79%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© kudryashka, 123RF.com
.pl 01 #! /usr/bin/perl 02 # erlang.pl 03 04 ## Input-Parameter 05 $servers = 8; 06 $erlangs = 4; 07 08 if($erlangs > $servers) { 09 print "Error: Erlangs exceeds servers\n"; 10 exit; 11 } 12 13 $rho
79%
High availability clustering on a budget with KVM
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Yulia Saponova, 123RF.com
on; service iscsi start 02 # iscsiadm -m discovery -t st -p 192.168.10.200 03 iqn.2008-01.com.example:storage.iscsi.disk1 04 # iscsiadm -m node -T iqn.2008-01.com.example:storage.iscsi.disk1 -p 192
78%
Tracing applications with OProfile and SystemTap
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© boing, Photocase.com
: 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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