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69%
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
69%
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
68%
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
68%
Exploring Nmap's scripting engine
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
.mcwrite.net Starting Nmap 5.00 ( http://nmap.org ) at 2011-03-06 19:35 CST Interesting ports on blogs.typepad.com (204.9.177.195): Not shown: 998 filtered ports PORT STATE SERVICE 80/tcp open http | robots
68%
Troubleshooting SELinux
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Sapsiwai, Fotolia
user_u:system_r:httpd_t root 3728 1 2 10:49 ? 00:00:00 /usr/sbin/httpd 07 user_u:system_r:httpd_t apache 3730 3728 0 10:49 ? 00:00:00 /usr/sbin/httpd 08 ... The weird
67%
Connecting dissimilar IPsec implementations
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Yuri Arcurs, 123RF.com
interfaces { 05 st0.0; 06 } 07 } 08 } 09 } The whole Juniper configuration is extremely modular, as is reflected in the VPN definitions. These definitions include a proposal, which
66%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
/0K /s] [4137 /0 iops] [eta 00m:06s] In the example, the first job is performing a sequential read, marked as r in square brackets, while Fio hasn't initialized the second job, marked as P
65%
Touring the top Knoppix debugging and rescue tools
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Rafal Olechowski, 123RF.com
04 errs: 0, errxfer: 0.0k, succxfer: 1667072.0k 05 +curr.rate: 5270kB/s, avg.rate: 5808kB/s, avg.load: 8.1% The resulting image, sdb
65%
Managing FOSS applications on AIX
27.05.2025
Home »  Archive  »  2025  »  Issue 87: Light...  » 
Lead Image © Nataliia Natykach, 123RF.com
of your AIX product entitlement. If you're downloading from the Passport Advantage website, you need to select and download the file associated with one of the current parts M04S8ML (.tar.gz) or M04SBML
64%
Script utilities in depth: grep, awk, and sed
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© jirkaejc, 123RF.com
/share/zoneinfo -type f | \ 07 grep -v 'posix|right|Etc|SystemV | \ 08 grep -i $city` 09 echo -n "Time in $1: "; TZ=`echo $z` date The first section of this code ensures that the script's argument

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