Remove Old Files using find Command
Automated log cleanup and backup rotation scripts on Linux frequently rely on GNU find to locate and delete files older than a retention threshold. Evaluatin...
Recent Posts
Moving RRD file from 32bit to 64bit Architecture
RRDtool (Round Robin Database) stores time-series performance metrics (such as Nagios / PNP4Nagios / Cacti / Zabbix / Ganglia graphs) in a binary file format...
Migrating Nagios XI to a New Server on Centos6.6
Migrating Nagios XI to a new server is straightforward using its built-in backup_xi.sh and restore_xi.sh utilities. Once the backup archive is restored onto ...
Setting up SSL https On Nagios XI Server
Configuring HTTPS (TLS/SSL) on a Nagios XI server encrypts web UI logins, API calls (/nagiosxi/api/v1/), and passive check submissions (/nrdp/). Enabling HTT...
Standalone Chef Server / Workstation / Client Setup on CentOS 6
A standalone Chef Infra Server installation deploys all required backend services (Nginx, PostgreSQL, RabbitMQ, Solr/Elasticsearch, Bookshelf, and Erchef) on...
Update hosts file in Windows 8
The local hosts file maps IP addresses to hostnames (FQDNs and short aliases) on the local machine before querying external DNS servers. This is especially u...
Creating Documents Using pandoc
Pandoc is an open-source universal document converter capable of transforming technical documentation written in Markdown into PDF, Microsoft Word (.docx), H...
Setup/Configuration Nagios XI on Centos6.6
Nagios XI monitors hosts, network services, and application metrics across Linux and Windows environments, alerting administrators when checks enter warning ...
RPM Command Cheat Sheet
RPM (RPM Package Manager) is the low-level package management system used across Red Hat Enterprise Linux (RHEL), CentOS, Rocky Linux, AlmaLinux, Fedora, and...
Creating a large file in Windows / Linux
When testing disk-space monitoring alerts (such as Nagios or Zabbix filesystem thresholds), network throughput, or backup performance, it is helpful to quick...