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The next generation of Internet connectivity
30.11.2025
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ktsdesign, 123RF.com
. To verify that your IPv6 setup works, try pinging a known host – Google is a good bet (Listing 2). Listing 2 Testing IPv6 Setup 01 # ping6 ipv6.google.com 02 PING ipv6.google.com(iy-in-x63.1e
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Managing Linux systems with Spacewalk
30.11.2025
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© patrimonio designs, Fotolia.com
12 system: rpm -Uvh http://spacewalk.redhat.com/ yum/1.0/Fedora/12/i386/spacewalk-client-repo-1.0-2.fc12.noarch.rpm Then, use Yum to install the client tools: yum install rhn-client-tools rhn
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Warding off the rise of VoIP spam
30.11.2025
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Izaokas Sapiro, 123RF.com
places. Another factor limiting the use of automated calling is the cost: A primary rate interface with 30 bidirectional channels is not cheap. If a call center operates 24/7 and an unsuccessful call takes
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The fail2ban intrusion prevention framework
30.11.2025
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© Flavijus Piliponis, 123RF.com
figuring out other ways of spotting patterns – one such tag being . If you're sitting comfortably, the pattern below matches an SSH login attempt failure which, on a Debian box, lives in the /etc/fail2
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Win-win with Cygwin
30.11.2025
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© Steve Mann, 123RF.com
'll receive the following response: The authenticity of host '192.168.1.250' can't be established. RSA key fingerprint is 87:17:c3:92:44:ba: 1a:df:d7:9c:44:b2:5b:73:52:09. Are you sure you want to continue
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Reading email in the browser with Horde
30.11.2025
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©Daniel Villeneuve, 123RF.com
, 09 'protocol' => 'imap', 10 'port' => 143, 11 // Plaintext logins are disabled by default on 12 // IMAP servers (see RFC 3501 [6.2.3]) 13 'secure' => 'tls', 14 'maildomain
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Free backup tool for data centers
30.11.2025
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© andresr, fotolia.com
Password = "YdhKKoy2Huq1CVHwIR" 05 Pid Directory = "/var/run" 06 Query File = "/usr/lib/bacula/query.sql" 07 Working Directory = "/var/lib/bacula" 08 } 09 10 Fileset { 11 Name = "Full Set" 12
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Intrusion detection with Prelude
30.11.2025
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© Chittima Kasa, 123RF.com
11 12 13 Order allow,deny 14 Allow from all 15 16 17 Alias /prewikka/ /usr/share/prewikka/htdocs/ 18 ScriptAlias / /usr/share/prewikka/cgi-bin/prewikka.cgi 19
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How Upstart boots Ubuntu-based systems
30.11.2025
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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 ... 7
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A standard cloud computing API
30.11.2025
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= DeltaCloud.new(USER, PASSWORD, URL) 05 summary = Hash.new(0) 06 state = client.instances.inject({}) do |state, inst| 07 state[inst.id] = inst.state 08 summary[inst.state] += 1 09 state 10 end 11

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