RHEL 7

How to Configure Samba File Sharing on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Samba File Sharing on RHEL 7

How to Configure Samba File Sharing on RHEL 7 Samba is the go-to solution for integrating Linux servers into environments where Windows clients need to access shared files and printers. It implements the SMB/CIFS protocol natively on Linux, allowing RHEL 7 servers to appear as ordinary Windows file shares on the network. Whether you are […]

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How to Set Up NFS File Sharing on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up NFS File Sharing on RHEL 7

How to Set Up NFS File Sharing on RHEL 7 Network File System (NFS) is a distributed file system protocol that allows a server to share directories over a network, enabling client machines to mount and access those directories as if they were local storage. NFS has been a cornerstone of Unix and Linux networking […]

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How to Configure LVM on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure LVM on RHEL 7

How to Configure LVM on RHEL 7 Logical Volume Manager (LVM) is one of the most powerful storage management tools available on Linux. Unlike traditional partitioning, LVM introduces an abstraction layer between physical storage devices and the file systems that use them, enabling administrators to resize volumes online, create snapshots for consistent backups, and pool […]

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How to Set Up Checksum Monitoring with AIDE on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Checksum Monitoring with AIDE on RHEL 7

File integrity monitoring is a cornerstone of host-based intrusion detection. AIDE — Advanced Intrusion Detection Environment — creates a cryptographic baseline of your file system and compares the current state against that baseline to detect unauthorized changes. When an attacker modifies a system binary, alters a configuration file, or installs a rootkit, AIDE reports exactly […]

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How to Monitor Nginx Access Logs with GoAccess on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Monitor Nginx Access Logs with GoAccess on RHEL 7

Nginx access logs contain a wealth of information about who is visiting your site, which URLs are being requested, what errors users encounter, and where your traffic originates. Raw log files are difficult to interpret at a glance, but GoAccess transforms them into actionable, visually rich reports in seconds — either in the terminal for […]

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How to Configure auditd for Security Event Logging on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure auditd for Security Event Logging on RHEL 7

The Linux Audit Framework, managed by the auditd daemon, provides a comprehensive kernel-level mechanism for tracking security-relevant events on RHEL 7. Unlike application-level logging, the audit subsystem operates below the application layer, meaning that even a compromised process cannot suppress its own audit trail without also compromising the kernel. Properly configured, auditd records file access, […]

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How to Install VictoriaMetrics as a Prometheus Alternative on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install VictoriaMetrics as a Prometheus Alternative on RHEL 7

Prometheus has become the de-facto standard for metrics collection in Linux environments, but it is not the only option. VictoriaMetrics is a high-performance, cost-efficient time-series database that is fully compatible with PromQL, accepts Prometheus remote_write, and offers significant advantages in storage compression, ingestion throughput, and memory usage. A single-node VictoriaMetrics binary can replace or complement […]

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How to Set Up Alertmanager with PagerDuty and Slack Integration on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Alertmanager with PagerDuty and Slack Integration on RHEL 7

Prometheus generates alerts, but it is Alertmanager that handles routing, deduplication, grouping, and delivery to your notification channels. Without a properly configured Alertmanager, even the most thorough alerting rules in Prometheus are useless — they fire into the void. Integrating Alertmanager with both PagerDuty and Slack gives you a two-tier notification strategy: high-severity incidents page […]

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How to Install and Configure cAdvisor for Container Monitoring on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure cAdvisor for Container Monitoring on RHEL 7

How to Install and Configure cAdvisor for Container Monitoring on RHEL 7 cAdvisor (Container Advisor) is an open-source agent developed by Google that collects, aggregates, processes, and exports resource usage and performance metrics for running containers. It provides a real-time web UI and a Prometheus-compatible metrics endpoint, making it the standard solution for container observability […]

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How to Build Grafana Dashboards for Linux Server Metrics on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Build Grafana Dashboards for Linux Server Metrics on RHEL 7

How to Build Grafana Dashboards for Linux Server Metrics on RHEL 7 Grafana is the de facto standard for visualising time-series data collected by Prometheus, InfluxDB, Graphite, and dozens of other data sources. A well-constructed Grafana dashboard can surface CPU saturation, memory pressure, disk I/O bottlenecks, and network anomalies at a glance, dramatically reducing the […]

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