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18%
Dispatches from the world of IT
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
 
to "target the intersection of virtualization and security." According to the Citrix announcement, the new company will be "highly complementary to the Citrix virtualization, networking, and cloud strategy
18%
Galera Cluster for MySQL
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Noel Powell, fotolia.com
, however (web shops, CMS, CRM, etc.), much more complex queries dominate, usually with join clauses. In such a case, MySQL Cluster – because of its network-database (NDB) architecture – does not perform
17%
Targeted defense against brute force attacks
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Andrii IURLOV, 123RF.com
. If it discovers questionable network access, it temporarily blocks the presumed attacker by introducing firewall rules (Figure 1). Figure 1: The SSH daemon logs
17%
The Ruby Version Manager (RVM) hands-on
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
©Mettusr, 123RF.com
of RVM is a simple, although unusual, task for the administrator. As is often the case in the Ruby/Rails world, the installation script is executed directly on the network. You simply need to install Git
17%
Linux filesystem performance tested
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© nyul, 123rf.com
cache SSD/Hard disks: two SATA-II Intel SSD 710 Series (100GB)/six SAS Toshiba MK2001TRKB 6GBps (2TB) Network: 4x Intel (IGB) 1Gbps Operating system: openSUSE 12.1 and Tumbleweed, kernel 3.1.10 and 3
17%
The latest developments in Open-Xchange 6.20
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Robert Byron, Fotolia.com
. Additionally, the developers have implemented an OAuth service for centralized authentication with social networks like LinkedIn, Twitter, and Facebook. The makers of Open-Xchange are looking to extend
17%
Shell scripts: Equal rights for Unix derivatives and Linux
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Mike Flippo, 123RF
experience different behavior from various programs if they change from one Linux distribution to another. If you are debugging the network on Red Hat, for example, you can tell traceroute to use the TCP
17%
The logging module in Python
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© svl861, 123RF.com
, and a RotatingFileHandler lets you rotate the logfiles depending on size and date. A SocketHandler logs over the network, but you need to do much of the work yourself. SysLogHandler makes things easier because
17%
Touring the top Knoppix debugging and rescue tools
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Rafal Olechowski, 123RF.com
running process (hence its name), but also system information and interfaces for kernel subsystems such as network and filesystems. You can obtain critical information with the simplest text display program
17%
Warding off the rise of VoIP spam
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Izaokas Sapiro, 123RF.com
-greater challenge to networks. Session Initiation Protocol Besides Skype, Session Initiation Protocol (SIP4 [2], Listing 1), is the most widespread VoIP protocol today. Its pervasiveness in business environments

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