Blog & News
Latest updates, feature announcements, and security news from Panelica.
Linux User and Group Management: The Complete Guide for Server Admins
A complete guide to Linux user and group management: useradd, usermod, sudo, file permissions, and ACLs for secure servers.
Read MoreDatabase Backup Strategies: pg_dump, mysqldump, Automation, and Disaster Recovery
PostgreSQL and MySQL backup strategies: pg_dump, mysqldump, WAL archiving, automation, offsite copies, and disaster recovery playbooks.
Read MoreSSH Hardening: Beyond Key Authentication — The Complete Security Guide
Key auth is just the start. Harden every sshd_config directive, add 2FA, set up jump hosts, and build an emergency recovery plan.
Read More50 Linux Commands Every Server Admin Must Know
A complete reference guide to the 50 most essential Linux commands for server administrators — organized into 7 categories with real-world examples, syntax breakdowns, and a quick-reference table.
Read MoreModSecurity CRS Tuning: Paranoia Levels, False Positives, and Virtual Patching
Running ModSecurity in blocking mode without breaking real traffic: paranoia levels, anomaly scoring, false positive exclusions, and virtual patching explained.
Read MoreLinux Disk Management: LVM, RAID, and Partitioning Beyond df and du
Master LVM, RAID, and partitioning for Linux servers — online volume resizing, disk health monitoring, and the exact steps to recover from a disk-full emergency.
Read MoreSWAP and Memory Management in Linux: When Your Server Runs Out of RAM
A complete guide to Linux memory management: how free -h works, when swap kicks in, how the OOM Killer chooses its target, cgroups v2 limits, and a troubleshooting playbook for the four most common memory crisis scenarios.
Read MoreLinux Networking Commands: ip, ss, curl, dig, and traceroute for Server Admins
Master ip, ss, curl, dig, traceroute, mtr, tcpdump, and nmap for real-world Linux network troubleshooting, with practical filters and scenarios.
Read Moresystemd Deep Dive: Services, Timers, and Journald for Linux Server Admins
A comprehensive guide to systemd for Linux server administrators — unit files, service management, timers as a cron replacement, journald log querying, security hardening directives, and a complete troubleshooting toolkit.
Read MoreAdvanced Linux Process Management: Debugging Zombies, OOM Kills, and Runaway Processes
Go beyond ps and top: diagnose zombie and orphan processes, survive OOM kills, escalate signals safely, and troubleshoot runaway scripts under pressure.
Read MoreAdvanced Fail2Ban Configuration: Custom Filters, Recidive Jails, and Incident Response
Beyond basic setup: custom Fail2Ban filters, progressive ban times, recidive jails for repeat offenders, and a production jail.local you can deploy today.
Read MorePostgreSQL for Beginners: Installation, Configuration, and Performance Tuning
Install PostgreSQL from the official repository, configure pg_hba.conf authentication, tune memory settings, and run production-grade backups.
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