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10%
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
10%
Expand your sphere with a piece of Google
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© artida, 123RF.com
additional power – as much as you need. Restricted Traffic Google App Engine applications have the following limits: Processor and bandwidth are sufficient for approximately 5 million page hits
10%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© kudryashka, 123RF.com
model was accurate to within 5 percent of the measured performance. In 1967, about 50 years after Erlang's first queuing model, a Ph.D. student, named Allan Scherr, used a queuing model to estimate
10%
Performance testing monitoring solutions
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Kheng Ho Toh, 123RF.com
were run on a virtual system (using ESX as the hypervisor) with fixed reservations for CPU and memory. To be more precise, I used a virtual CPU running at 1.5GHz and with 512MB of RAM in the virtual
10%
Mandatory access control with Tomoyo Linux
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© 3drenderings, 123RF.com
compared with version 1.x are noticeable in Tomoyo versions 2.2.x and 2.3.x; the current version 2.5 only lacks a couple of features. Unfortunately, version 2.5 is only available in Linux kernel 3.2, which
10%
The NDMP protocol and alternatives for filer backup
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Suwit Luangpipatsorn, 123RF.com
to the control program. 4. Where needed, the control program initiates tape changes in the course of the backup, relying on the tape library's media changer support. 5. The data server tells the control program
10%
New Products
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
 
, and there's a 5Mpx camera on the back. The Asus Transformer Prime TF201 tablet can convert between slate-only mode and laptop mode. Thus, users can take full advantage of the 10.1-inch, 1280x800 Super IPS
10%
Sys Admin On the Go
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Laurent Davoust, 123RF.com
definition. Listing 1 Notification Setup 01 notification_interval 1440 02 is_volatile 0 03 check_period 24x7 04 normal_check_interval 5 05 retry
10%
Tracing applications with OProfile and SystemTap
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© boing, Photocase.com
686 oprofile-0.9.5-4.fc12.i686 To profile the kernel, you need to tell OProfile where the kernel image is located with the --vmlinux option: opcontrol --setup --vmlinux=/usr/lib/debug/lib/ modules
10%
Exploring Nmap's scripting engine
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
2009-11-06 03:39 whois.nse The Nmap Reference Guide [5] provides a breakdown of the scripts that are currently distributed with Nmap. More on NMAP In this article, I focus on Nmap

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