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  • Article (Print) (102)
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42%
Overview of cloud platforms and appliances
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Athiphan Chunmano, 123RF
, your scaling options are virtually unlimited, and you can add Content Delivery Networks (CDN). As an example, SlideShare [1] integrates document downloads and Flash file hosting with Amazon S3 and Cloud
42%
Free backup tool for data centers
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© andresr, fotolia.com
Include { 13 File = /usr/sbin 14 Options { 15 Signature = MD5 16 } 17 } 18 Exclude { 19 File = /var/lib/bacula 20 File = /tmp 21 } 22 } 23 24 Messages { 25 Name = Daemon 26
42%
Workshop: Getting web and mail servers ready for IPv6
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© suze, Photocase.com
, or just isn't compatible. To allow this to happen, add the following rule on your firewall: ip6tables -A INPUT -j REJECT -p tcp-dport 25 --reject-with tcp-reset This setup acknowledges IPv6 connections
42%
Business continuity for small to medium-sized enterprises
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Andrea, Fotolia.com
prevention strategies as Business Continuity Management. According to Wikipedia [1], the objective of business continuity management is to establish "a roadmap for continuing operations under adverse
42%
Enterprise software management with Red Hat Satellite Server
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© robbiverte, 123RF.com
BladeSystem C7000 Enclosure. The drawing in Figure 1 illustrates the lab environment. Figure 1: A simulated working environment to test Red Hat Satellite ... 9
42%
Monitoring for small and medium-sized companies compared
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
agentless, but with open interfaces that support the implementation of agents. SNMP can be queried in versions V1, V2c, and V3. The Nagios agents NRPE and NSClient++ can be fully utilized Agentless
42%
pfSense firewall and router distribution
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Sergey Mironov, 123RF.com
Chris Buechler and Scott Ullrich were unhappy. Although the FreeBSD m0n0wall distribution gave them a quick option for setting up a firewall and a router, it was designed for use on embedded systems
42%
Clustering with OpenAIS and Corosync
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
brunoilfo, 123RF.com
ID. Version 3.0 of the cluster suite (in RHEL 6 and Fedora 10 or later), replaces OpenAIS with Corosync [3]. Viewed superficially, not too many changes are seen between the two cluster managers ... 3
42%
High-availability workshop: GFS with DRBD and Pacemaker
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Maxim Borovkov, 123RF.com
cluster nodes, and the ext3 driver on node A wouldn't have the option of querying the state of the same DRBD resources on node B if it wanted to write to the medium. In the worst case, a write to the DRBD
42%
Finding cracks with Nmap, Portbunny, and Nessus
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Fotoflash, Fotolia.com
. This prevents the sender from filling up the cache too quickly. Port Scanners Nmap [3], which recently went to version 5.0, is the Swiss army knife of port scanners. Portbunny [4] is a relatively new tool

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