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26%
Expand your sphere with a piece of Google
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© artida, 123RF.com
Amazon started converting its excess computational power to cash some time ago. Under such names as EC2 (Elastic Computing Cloud), S3 (Simple Storage Service), and SimpleDB, the book and coffee
26%
Tested: Autoconfiguring IPv6 clients
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Benis Arapovic, 123RF.com
, the MAC address (e.g., 00:11:22:33:44:55) is split down the middle, and two bytes containing FF:FE are inserted. This gives you 64 bits. If the basis is a globally unique address (which should be the case
26%
Galera Cluster for MySQL
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Noel Powell, fotolia.com
.gz cd pen-0.18.0/ ./configure make make install Started with: ./pen -r -p pen.pid -C localhost:4444 -S 3 \ localhost:3306 192.168.56.101:3306:100 \ 192.168.56.102:3306:100 192
26%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
="binary" unique="0" required="0"> 18 19 Location of the Asterisk PBX server binary 20 21 Asterisk PBX server binary 22
26%
Creating an SFTP jail
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Juan Manuel Ordonez, 123RF.com
_config 03 bash#> vi sshd_config 04 AllowTcpForwarding no 05 ClientAliveCountMax 3 06 ClientAliveInterval 0 07 Compression delayed 08 LoginGraceTime 60s 09 LogLevel DEBUG3 10 MaxAuthTries 2
25%
Shell scripts: Equal rights for Unix derivatives and Linux
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Mike Flippo, 123RF
OS*) 15 PING="ping" 16 PING2="" 17 ;; 18 esac 19 ... 20 21 for i in server1 server2 server3 workstation1 workstation2 22 do 23 $PING $i $PING2 > /dev/null 24 if [ "$?" != "0
25%
Network analysis with Wireshark
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Reinhard Eisele
to many administrators by that name. The tool was renamed when version 0.99.1 of Wireshark was released, because Ethereal developer Gerald Combs left Ethereal Software. He launched a successor project under
25%
Connecting dissimilar IPsec implementations
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Yuri Arcurs, 123RF.com
:31:40: [6694] DEBUG: (lifebyte = 0:0) 04 2011-01-28 17:31:40: [6694] DEBUG: enctype = 7:7 05 2011-01-28 17:31:40: [6694] DEBUG: (encklen = 128:128) 06 2011-01-28 17:31:40: [6694] DEBUG: hashtype = SHA:SHA 07
25%
Business continuity for small to medium-sized enterprises
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Andrea, Fotolia.com
. In the test scenario, I defined a backup schedule with the following settings: Schedule: weekly Daily full backup: Monday – Friday 20:00 Daily incremental backup: Monday – Friday 08:00--18:00, 30
25%
Professional backup solutions compared
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Kamil Macniak, 123RF
used a virtual machine on a VMware ESX server. The physical underpinnings were a ProServ II server by ExuS Data with two Xeon quad-core processors and 16GB of RAM (Figure 1, top

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