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  • Article (Print) (272)
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18%
Intruder detection with tcpdump
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Monika Wisniewska, 123RF.com
reported and need to be absolutely sure of time, use the -tt option to show seconds and microseconds since the beginning of the Unix epoch (Figure 3). The useful expressions shown in Table 2 can help you cut
18%
A simple approach to the OCFS2 cluster filesystem
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Kheng Ho Toh, 123RF.com
filesystem (AFS) is another network filesystem that is available in a free implementation, OpenAFS [3]. On the other hand are cluster filesystems. Before computers can access "distributed" data, they first
18%
OpenVPN with e-tokens in large-scale environments
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© sTan, fotolia.com
. Tokens and Certificates Of course, the VPN dial-up no longer uses a simple pre-shared key (PSK) but, instead, uses secure, centrally manageable X.509 certificates [3] that automatically expire. You can
18%
Acceptable Risk
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Andrew Brown, 123RF.com
into acceptance of the following aspects of your job as system administrator: 1. Users introduce risks to systems and data. 2. Networked computers are vulnerable to over-the-wire attacks. 3
18%
Script utilities in depth: grep, awk, and sed
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© jirkaejc, 123RF.com
. Here are some examples: _{3,} – Three or more consecutive underscores · {2,5} – Between two and five spaces in a row (where · is a space) (the·){2} – Two consecutive
18%
State-of-the-art virtual private networks
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Maxim Kazmin, 123RF.com
. The client opens a connection to TCP port 443 on the server. 2. The client sends an "SSL Session Setup Message" to indicate that it wants to set up an SSL connection to the server. 3. The server sends an SSL
18%
New Products
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
 
or rendering of the results. According to the announcement, Maximus combines the 3D graphics capability of NVidia Quadro professional GPUs with the parallel computing power of the NVidia Tesla C2075 companion
18%
Practical SELinux
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Pavel Ignatov, 123RF.com
, Listing 3 shows the complete call to audit2allow with the policy module I manually modified for access to an IRC server. Listing 3 Policy Module # grep xchat /var/log/audit/audit.log | audit2
18%
GNU tools under Windows
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Markus Gann, 123RF.com
to the Windows desktop, but at a little less than 10MB, it is much more compact than Cygwin's 100MB and is also easier to install. Alternatives MobaXterm: A previous article [3] introduced Moba
18%
Dispatches from the world of IT
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
 
Computing in cooperation with Sandia National Laboratories. According to the product announcement, the compact PowerInsight device is small enough to fit a 3.5-inch drive tray, and it can measure power

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