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12%
Analyzing tricky database problems
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Photo by Quino Al on Unsplash
. The infrastructure also includes three LDAP servers, six NFS servers (based on Ceph), and two HAProxy load balancers. Monitoring is done via Graphite [5], with an Elasticsearch [6], Logstash [7], and Kibana [8] (ELK
12%
Automating command execution across servers
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Photo by Adrian Hartanto on Unsplash
: [devuan] 10 donkey: 11 user: root 12 host: donkey.operationalsecurity.es 13 tags: [devuan] 14 zebra: 15 user: root 16 host: zebra.operationalsecurity.es 17 tags: [devuan] 18 19
12%
The best cmdlets for PowerShell
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
© Rossella Apostoli, 123RF.com
Index 12 -IPAddress 192.168.178.2 -PrefixLength 24 -DefaultGateway 192.168.178.1 You can then enter the DNS servers like this: Set-DnsClientServerAddress -InterfaceIndex 12 -ServerAddresses 192
12%
Run rootless Podman containers as  systemd services
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Photo by Geeky Shots on Unsplash
Podman in their standard repositories. In immutable Linux distributions like Fedora CoreOS [5] and openSUSE MicroOS [6] (Figure 1), Podman comes pre-installed. Both Linux distributions offer a minimal
12%
Managing Storage with LVM
07.11.2023
Home »  HPC  »  Articles  » 
 the last command as an example, an option to specify the extent size would be: # vgcreate -s 8M vg0 /dev/sdb1 /dev/sdd The -s 8M  option specifies a PE size of 8MB when the VG is created. You can change
12%
CephX Encryption
27.03.2013
Home »  HPC  »  Articles  » 
as a regular client to gain access to the data. Libvirt 0.9.12 or later can handle CephX, but the setup is not very intuitive. The following example is based on the assumption that a user named libvirt exists
12%
Exploring the HPC Toolbox
04.11.2011
Home »  HPC  »  Articles  » 
an imminent failure. The lm_sensors tool [5] lets you monitor the fan and temperature. With just a little scripting, you can even create a heat map of the cluster to identify hotspots.  The smartmontools [6
12%
Proprietary and Open Source Storage Options
09.10.2023
Home »  HPC  »  Articles  » 
 bytes Disklabel type: gpt Disk identifier: DD46F2B6-9DDE-4810-AA43-905AB60C656D   Device           Start        End   Sectors   Size Type /dev/nvme0n1p1    2048    1050623   1048576   512M EFI System /dev
12%
Exploiting, detecting, and correcting IAM security misconfigurations
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Kyle Head on Unsplash
. Magic?! To create a new policy and escalate the privilege [6] inside the environment to the administrator, the attacker can use the command: $ aws iam create-policy-version --policy-arn arn
12%
Protecting the production environment
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Photo by Intricate Explorer on Unsplash
ensure => installed, 10 before => File[$config_file], 11 } 12 file { $config_file: 13 ensure => file, 14 content => template('apache/httpd.conf'), 15 notify => Service[$service_name], 16 } 17

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