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14%
Virus scanner and content filter with AD authentication
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Denis Makarov, 123RF.com
=~ s/%([0-9a-fA-F][0-9a-fA-F])/pack("U",hex($1))/eg; 11 # test for each group squid sent in its request 12 foreach $group (@groups) { 13 $group =~ s/%([0-9a-fA-F][0-9a-fA-F])/pack("U",hex($1))/eg
14%
Avoiding chaos in clusters with fencing
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© kobra78, Fotolia.com
:external/ipmi 10 params hostname="bob" ipaddr="192.168.122.111" 11 userid="4STONITHonly" passwd="evenmoresecret" interface="lanplus" 12 op start interval="0" timeout="60" 13 op stop interval="0" timeout
14%
Password protection with Phpass
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Michael Moeller, fotolia.com
$password = "test12345"; 09 // In a production web application, the password would be retrieved from a form filled out by the user 10 $hashwert = $hasher->HashPassword($password); 11 12 echo "Password
14%
Checking password complexity with John the Ripper
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
c/s virtual 12 13 Benchmarking: OpenBSD Blowfish (x32) [32/64 X2]... DONE 14 Raw: 723 c/s real, 723 c/s virtual 15 16 Benchmarking: Kerberos AFS DES [48/64 4K]... DONE 17 Short: 378501 c/s real
14%
Intruder detection with tcpdump
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Monika Wisniewska, 123RF.com
: Figure 4: Header bytes 12-15. # tcpdump -n -r dumpfile.lpc -c 10 'tcp[13] == 18' and host 172.16.183.2 Figure 5 is an example what this command returns. When capturing data with tcpdump, you can
14%
Configuration management with Chef
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alistair Cotton, 123RF.com
" 05 06 signing_ca_path "/var/chef/ca" 07 couchdb_database 'chef' 08 09 cookbook_path [ "/var/chef/cookbooks", "/var/chef/site-cookbooks" ] 10 11 file_cache_path "/var/chef/cache" 12 node
14%
How Upstart boots Ubuntu-based systems
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
start on filesystem 05 exec /usr/bin/measd --log=/var/log/noise/measure.log 06 07 pre-start script 08 # Create required script: 09 mkdir -p /var/log/noise 10 end script 11 12 post-stop script 13 # Clean
14%
Business continuity for small to medium-sized enterprises
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Andrea, Fotolia.com
full backup with several incremental backups every day. The shortest permissible interval between two incremental backups is 15 minutes. In an ideal case, I would lose a maximum of a quarter of an hour
14%
Moving HPC to the cloud
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Zarko Cvijovic, 123RF.com
of options, including dual four-core Xeon, dual six-core Xeon, or quad 12-core AMD processors ranging in speed from 2.2 to 2.9GHz with 24 to 128GB of RAM per server and up to 1TB of scratch local storage per
14%
Proactive threat detection
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Lead Image © dunord, 123RF.com
[12], and Icinga [13], with the advantage that existing alert chains and escalation levels can be rehashed without any problems. Once Falco is connected to the existing monitoring system, alerts

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