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23%
Create a high availability VM with  DRBD9  and Reactor
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Photo by Emma Simpson on Unsplash
. Listing 1 DRBD Resource for VM # vi /etc/drbd.d/proxy.res resource proxy { device drbd0; disk /dev/drbd/proxy; meta-disk internal; on alice { address 10.42.0.100:7789; node-id 0
23%
Verifying TLS Certificates
06.08.2026
Home »  Archive  »  2026  »  Issue 94 OpenSt...  » 
Lead Image © Christos Georghiou, 123RF.com
.example.net | jq .certificates[0].issuer.organization[0] If you don't keep track of your web certificate expiry dates, you can let your monitoring system handle it. The classic Nagios uses the check
23%
Modern MySQL Forks and Patches
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Dmitry Karasew, 123RF.com
mysql> select * from information_schema.TABLE_STATISTICS ORDER BY ROWS_READ DESC LIMIT 0,5; +--------------------+---------------+-------------+--------------+------------------------+ | TABLE
23%
Single sign-on with SSSD, LDAP, and Kerberos
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Anja Kaiser; Fotolia
posixaccount /etc/dirsrv/schema/10rfc2307.ldif objectClasses: ( 1.3.6.1.1.1.2.0 NAME 'posixAccount' DESC 'Standard LDAP objectclass' SUP top AUXILIARY MUST ( cn $ uid $ uidNumber $ gidNumber $ home
23%
Introduction to behavior-driven monitoring
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Mariya Herasymenko, 123RF
/usr/lib64/ruby/1.8/logger.rb:487:in `initialize' 12 /usr/lib64/ruby/1.8/logger.rb:263:in `new' 13 /usr/lib64/ruby/1.8/logger.rb:263:in `initialize' 14 /usr/lib/nagios
23%
Isolating Containers from Container Attacks
06.08.2026
Home »  Archive  »  2026  »  Issue 94 OpenSt...  » 
Photo by Patrick Humm on Unsplash
vulnerability and exposure (CVE)-2024-23652 was particularly severe, with a Common Vulnerability Scoring System (CVSS) score of 10.0, and allowed attackers to delete arbitrary files during a container's build
23%
What tools do intruders use to
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Wojciech Kaczkowski, 123RF.com
.org packetstormsecurity.org,199.58.210.12,A NS25.WORLDNIC.COM,205.178.190.13,SOA ns25.worldnic.com,205.178.190.13,NS ns26.worldnic.com,206.188.198.13,NS mail.packetstormsecurity.org,199.58.210.12,MX,10 Fierce [2], written
23%
The next generation of Internet connectivity
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
ktsdesign, 123RF.com
-type traffic, as well as for the local link address (i.e., good old 127.0.0.1). Getting IPv6 Connectivity You can get IPv6 connectivity in several ways: native IPv6 access, IPv6 tunnels, Teredo (Miredo on Unix
23%
Building more efficient database applications with a graph database
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Jakub Krechowicz, 123RF.com
comparison in Table 1. Table 1 Five Graph Databases Name Neo4j 1.6 Sones Graph DB 2.0 InfoGrid 2.9.5 HyperGraphDB 1.1 VertexDB Homepage http
23%
Penetration testing and shell tossing with Metasploit
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© Jean-Marie Guyon, 123RF.com
console and load Nessus with the command: msf > load nessus Once the plugins are loaded, connect to the server. msf > nessus_connect cr0wn:password@localhost ok Now show the available plugins

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