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46%
Warding off the rise of VoIP spam
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Izaokas Sapiro, 123RF.com
:alice@somesipprovider.de>;tag=42 07 Call-ID: a84b4c76e66710de5f90ae275 08 Contact: Alice 09 ... The media data transferred in the course of a voice or video call are typically transported one
46%
Exploring Nmap's scripting engine
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
– A common language makes the script portable to Nmap systems on other platforms. (A Bash script, on the other hand, would work well in Linux but might not work on a Windows system.) Community
45%
High availability clustering on a budget with KVM
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Yulia Saponova, 123RF.com
: 09 bb:0f:e3:7f:3e:ab:c3:5d:32:78:85:04:a2:da:f1:61 root@host1 You need to distribute the public part, that is the /root/.ssh/id_rsa_cluster.pub file, to all nodes in the cluster. The Strict
45%
OpenVPN with e-tokens in large-scale environments
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© sTan, fotolia.com
version [9]. Listing 3 /etc/openvpn/ccd/John_Doe 01 # John Doe 02 ifconfig-push 192.168.1.3 255.255.255.0 03 push "topology subnet" 04 push "redirect-gateway" 05 push "dhcp-option DNS 192
45%
The next generation of Internet connectivity
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
ktsdesign, 123RF.com
's with all the colons? Well, put simply, IPv4 addresses are short, so writing out the entire address is easy. With IPv6, however, you get something like 1.2.3.4.5.6.7.8.9.234.25.198.221.82.15.16. To make ... 3
45%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
tests and take some of the load off the SSD with the fstrim command from a recent util-linux package [9]. The workload from Listing 3, which measures the IOPS with a variable block size between 2Kb
45%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
_ERR_GENERIC;; 37 3) return $OCF_NOT_RUNNING;; 38 esac 39 fi 40 41 ocf_log debug "Asterisk PBX monitor succeeded" 42 return $OCF_SUCCESS 43 } Listing 9 asterisk
45%
Galera Cluster for MySQL
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Noel Powell, fotolia.com
temporarily with Listing 5 Error Messages sh: /sbin/ifconfig: Permission denied 120405 8:29:02 [ERROR] WSREP: Failed to read output of: '/sbin/ifconfig | \ grep -m1 -1 -E '^[a-z]?eth[0-9
45%
Configuring XP Mode in Windows 7
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Iakov Kalinin, 123RF.com
license and the installation medium to do so. The path to the VHD container files is also available in the guest context if you configure file and folder sharing when you set up XP Mode (Figure 3). The C ... 3
45%
Configuration management with Chef
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alistair Cotton, 123RF.com
}, 11 "run_list": [ "recipe[bootstrap::client]" ] 12 } Now you can launch Chef Solo: sudo chef-solo -c ~/solo.rb -j ~/chef.json -r http://s3.amazonaws

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