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43%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alterfalter, 123RF.com
check_interval 5 12 retry_interval 1 13 contacts spz_admin 14 notification_period 24x7 15
43%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© kudryashka, 123RF.com
by PDQ::Report() 14 pdq::SetWUnit("Cust"); 15 pdq::SetTUnit("Sec"); 16 # Create a PDQ control node (Cashier) 17 $pdq::nodes = pdq::CreateNode($ServerName, $pdq::CEN, $pdq::FCFS); 18 # Define the PDQ task
43%
RAM revealed
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© KrishnaKumar Sivaraman, 123RF.com
240 240 Still unknown Operating voltage (V) 2.5 1.8 1.5 (DDR3L: 1.35; DDR3U: 1.25) 1.2 Chip (I/O clock frequency, MHz) DDR-200 (100)DDR-266
43%
Getting started with I/O profiling
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Photosani, Fotolia.com
InfiniBand for the compute node storage traffic or will GigE or 10GigE be sufficient? Should I use 15,000rpm drives or 7,200rpm drives? Do I need SSDs (solid state drives)? Which filesystem should I use
43%
OpenVPN with e-tokens in large-scale environments
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© sTan, fotolia.com
KEY_CITY="Muenchen" 14 export KEY_ORG="Linux-Magazin" 15 export KEY_EMAIL="pki@linux-magazin.de" 16 17 ./clean_all 18 ./vars 19 ./build-dh.sh After a little time, and a couple of screens full
43%
Reading and understanding database execution plans
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Gunnar Pippel, 123RF.com
----------------------------------------------------------------- 15 | 0 | SELECT STATEMENT | 3130K | 833 | 16 |* 1 | HASH JOIN | 3130K | 833 | 17 |* 2 | TABLE ACCESS BY INDEX ROWID | SALES | 566K
43%
Win-win with Cygwin
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Steve Mann, 123RF.com
'll receive the following response: The authenticity of host '192.168.1.250' can't be established. RSA key fingerprint is 87:17:c3:92:44:ba: 1a:df:d7:9c:44:b2:5b:73:52:09. Are you sure you want to continue
43%
Neglected IPv6 features endanger the LAN
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Stanislaw Tokarski, 123RF.com
the hostname ibm-R52 using the link-local multicast name resolution (LLMNR) protocol. If DNS resolution does not return an IP address, LLMNR is used by newer Microsoft operating systems as a supplement. Because
43%
Centralized software repository management
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© 1xpert, 123RF.com
Role Information for super-users 11 +------------------------------------------+ 12 Name super-users 13 Users admin 14 Permissions: 15 / CREATE, READ
43%
Enterprise communication with IRC
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© anyka, 123RF.com
; 12 13 /* sendq: servers need a higher sendq as they send more data */ 14 sendq=2 megabytes; 15 }; Additionally, ircd.conf lacks a block that allows connections to other servers

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