Rajesh Raj Pathak System Administrator
Knowledge Sharing

Technical Insights & Experience

Practical notes, specialized ISP guides, and system administration reflections gathered over two decades of operation.

Disk Quota Management Feb 25, 2026
#25

Disk Quota Management

Ensuring fair resource distribution in shared hosting environments.

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Fail2Ban Configuration Feb 23, 2026
#26

Fail2Ban Configuration

Dynamic IP blocking to prevent unauthorized server access.

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Linux User Permissions Feb 21, 2026
#27

Linux User Permissions

The principle of least privilege in multi-user server environments.

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Process Monitoring with htop/atop Feb 19, 2026
#28

Process Monitoring with htop/atop

Identifying resource bottlenecks in real-time.

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Bash Scripting for Admins Feb 17, 2026
#29

Bash Scripting for Admins

Automating daily maintenance tasks with smart shell scripts.

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Server Hardening with SELinux Feb 15, 2026
#30

Server Hardening with SELinux

Adding an extra layer of mandatory access control.

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