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17%
Detect failures and ensure high availability
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Tim Foster on Unsplash
a secondary (local) drive with the exact same capacity on each, /dev/sdb: $ cat /proc/partitions|grep sd 8 0 10485760 sda 8 1 1024 sda1 8 2 1835008 sda2 8 3
17%
The fail2ban intrusion prevention framework
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Flavijus Piliponis, 123RF.com
the smoke and mirrors that some pieces of software employ to keep their workings secret, fail2ban is transparent in the work it does behind the scenes. In simple terms, fail2ban [3] keeps a close eye on your
17%
Server virtualization with VirtualBox
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Federico Caputo, 123RF.com
apache2-mpm-prefork apache2-utils apache2.2-bin apache2.2-commona pache2-doc apache2-suexec libapache2-mod-php5 libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap libapr1 libaprutil1 libaprutil1
17%
The weak spot of SBCs
04.04.2023
Home »  Archive  »  2023  »  Issue 74: The F...  » 
Lead Image © Lucy Baldwin, 123RF.com
on the in-keyboard computer: the Raspberry Pi 400. Definitions and Standards The inscriptions on SD cards include details on storage capacity, format, bus interface, and more [3]. For our purpose here
17%
Advanced MySQL security tips (a complete guide)
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © alphaspirit, 123RF.com
_file | ACTIVE | +--------------+---------------+ 1 row in set (0.00 sec) Finally, confirm data encryption at rest with the strings command to view the encrypted output: $ strings /var
17%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
on hand; it is available on the web [2]. You will also find it useful to have the current version 1.0.2 [3] of the OCF Resource Agent Developer's Guide , created by Hastexo's Florian Haas. The Developer
17%
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
17%
Versatile network and system monitoring
30.01.2024
Home »  Archive  »  2024  »  Issue 79: Monit...  » 
Lead Image © erythropterus, 123RF.com
an initial evaluation of the environment. They provide the installation packages for Ubuntu 20.04/22.4, CentOS 8, and Debian 11, along with Docker, virtual machine (VM) images, and an online demo [2]. If you
17%
VAX emulation with OpenVMS
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Ole Houen, 123RF
attach xq eth0 21 22 set cpu idle 23 boot cpu The first step in the OpenVMS installation is to write a so-called "save set" of the operating system from the CD to the hard drive: backup dua3:vms073
17%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alterfalter, 123RF.com
active_checks_enabled 1 22 passive_checks_enabled 0 23 check_command check_ssh 24 max_check_attempts 3 25

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