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7%
Reading and understanding database execution plans
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Gunnar Pippel, 123RF.com
------------------------------------------------------------------------------ 10 Hash Join <+>2<+>( cost=3091.01..13119.07 rows=59654 width=1286) 11 Hash Cond: (s.employee_id = e.employee_id) 12 -> Index Scan using sale_date on sales s (cost=0.01..3893.82 rows=59654 width=251
7%
Neglected IPv6 features endanger the LAN
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Stanislaw Tokarski, 123RF.com
an RFC 3484 – Default Address Selection for Internet Protocol version 6 (IPv6) – compliant [2] resolver library. Because IPv4 is used as a matter of course, whereas IPv6 is often used unintentionally
7%
Configuring Windows with NetShell
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Kirsty Pargeterr, fotolia.com
=yes In this case, NetShell might even return a response, such as 2 rule(s) were updated. OK indicating that the same rule has been deployed for two different profiles. Many standard rules are organized in groups
7%
Server virtualization with VirtualBox
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Federico Caputo, 123RF.com
ensure that Apache is only accessible from localhost, not the Internet. To do so, in /etc/apache2/ports.conf, just change the entry NameVirtualHost *:80 Listen 80 to: NameVirtualHost *:80 Listen 127.0.0
7%
Network monitoring for Windows
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© spectral, 123RF.com
Instrumentation (WMI), the Simple Network Management Protocol (SNMP), and, in the case of a compatible router (e.g., Cisco), NetFlow or sFlow. In the current version, you don't need to license NetFlow sensors
7%
What tools do intruders use to
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Wojciech Kaczkowski, 123RF.com
, name servers, and network hosts accessible through the Internet. The popular whois service also offers a means for discovering domain information. The Nmap scanner's -sL option (nmap -sL) performs
7%
Avoiding chaos in clusters with fencing
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© kobra78, Fotolia.com
interval="0" timeout="60" 06 op stop interval="0" timeout="60" 07 op monitor start-delay="0" interval="1200" 08 meta resource-stickiness="0" failure-timeout="180" Listing 2 STONITH
7%
A free anti-spam tool for Exchange environments
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© baurka, 123RF.com
Server 2008 R2, it is a good idea to disable increased security for Internet Explorer in the Server Manager first. Of course, you can also manage ASSP through your browser, but you will need to enable port
7%
The PHP FastCGI process manager, PHP-FPM
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© conceptw, 123RF.com
-1990s. The interpreter is now launched exactly once and then runs in the background. The web server then hands the requests to the interpreter via a TCP port or a Unix domain socket. Because
7%
Comparison of storage clouds
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© pakhnyushchyy, 123RF.com
. That is exactly what many manufacturers have done (Western Digital: WD 2go, Qnap: MyCloudNAS, and others). I looked at the solution that Synology has built into their DSM 4.0 Linux-based NAS operating system

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