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  • Article (Print) (56)
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35%
Network analysis with Wireshark
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Reinhard Eisele
impressive thing about Tcpdump is its useful collection of filters. These capture filters are based on Libpcap, a C/C++ library that supports access to the network interface's link layer. Administrators can ... An administrator can only gain useful insights from network analysis if they understand the underlying procedures and protocols. The new version of Wireshark, 1.6, formerly known as Ethereal, can
35%
OpenVPN with e-tokens in large-scale environments
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© sTan, fotolia.com
for user John Doe is stored in a file called /etc/OpenVPN/ccd/John_Doe and will look pretty much like the code in Listing 3. The important thing is for the filename to match the CN from the subject line
35%
SSH Administration – Windows in a Unix World
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Gino Santa Maria, 123RF.com
running on the Windows system (Listing 1). Listing 1 Initiating a Tunneled MySQL Connection 01 C:\> mysql -uroot -ppassword -hlocalhost -P9999 02 Welcome to the MySQL monitor. Commands end
35%
Professional backup solutions compared
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Kamil Macniak, 123RF
://www.bacula.org/en/ SEP sesam: http://www.sep.de/us/home/nc/1/ Symantec NetBackup: http://www.symantec.com/business/products/family.jsp?familyid=netbackup
35%
Monitoring KVM instances with Opsview
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Gina Sanders, Fotolia
Opsview Mobile: https://market.android.com/details?id=com.opsview.android NSClient++: http://www.nsclient.org DRBD MC: http://oss.linbit.com/drbd-mc Linux Cluster Management Console: http
34%
Backup tools to save you time and money
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Melissa King, 123RF.com
." The repository I used had version 0.33, so I downloaded and installed that (although v0.4.1 is current). The source code is available, but various Linux distributions have compiled packages. Describing itself ... 1
34%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© kudryashka, 123RF.com
checkout – as Listing 1 for the Perl variant of PDQ shows. The PDQ code contains the input values for the arrival rate (lambda) and the service time (S ): Listing 1 Checkout Model in PDQ 01
34%
Using Univention Corporate Server 2.4 for virtual infrastructure management
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Martin B, Pixelio.de
, such as Open-Xchange, Collax, Scalix, or Kolab. Although many appliances come with preconfigured OSS services, UCS [1] [2] offers added value compared with Collax and others because of its comprehensively
34%
Overview of cloud platforms and appliances
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Athiphan Chunmano, 123RF
conferences under the code name Next Generation Active Directory (NGAD). NGAD will make Microsoft Windows, including all of its components (SharePoint, Exchange, OCS, etc.), as fit for the cloud as Linux
34%
Galera Cluster for MySQL
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Noel Powell, fotolia.com
trying to listen 'tcp://0.0.0.0:4567?socket.non_blocking=1', asio error 'Permission denied': 13 (Permission denied) at gcomm/src/asio_tcp.cpp:listen():750 120405 8:29:02 [ERROR] WSREP: gcs/src/gcs_core.c

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