update changelog

CHANGELOG.md

@@ -1,3 +1,49 @@
+## 2025-05-13
+
+### Fixed
+
+- **Startup Fix on Newer Proxmox Versions**\
+  Fixed an issue where some recent Proxmox installations lacked the `/usr/local/bin` directory, causing errors when installing the execution menu. The script now creates the directory if it does not exist before downloading the main menu.\
+  🙏 Thanks to **@danielmateos** for detecting and reporting this issue.
+
+### Improved
+
+- **Updated Lynis Installation Logic in Post-Install Settings**\
+  The `install_lynis()` function was improved to always install the **latest version** of Lynis by cloning the official GitHub repository:
+  ```
+  https://github.com/CISOfy/lynis.git
+  ```
+  The installation process now ensures the latest version is always fetched and linked properly within the system path.
+
+  🙏 Thanks to **@Kamunhas** for reporting this enhancement opportunity.
+
+- **Balanced Memory Optimization for Low-Memory Systems**  
+  Improved the default memory settings to better support systems with limited RAM. The previous configuration could prevent low-spec servers from booting. Now, a more balanced set of kernel parameters is used, and memory compaction is enabled if supported by the system.
+
+  ```bash
+  cat <<EOF | sudo tee /etc/sysctl.d/99-memory.conf
+  # Balanced Memory Optimization
+  vm.swappiness = 10
+  vm.dirty_ratio = 15
+  vm.dirty_background_ratio = 5
+  vm.overcommit_memory = 1
+  vm.max_map_count = 65530
+  EOF
+
+  # Enable memory compaction if supported by the system
+  if [ -f /proc/sys/vm/compaction_proactiveness ]; then
+    echo "vm.compaction_proactiveness = 20" | sudo tee -a /etc/sysctl.d/99-memory.conf
+  fi
+
+  # Apply settings
+  sudo sysctl -p /etc/sysctl.d/99-memory.conf
+  ```
+
+  These values help maintain responsiveness and system stability even under constrained memory conditions.
+
+  🙏 Thanks to **@chesspeto** for pointing out this issue and helping refine the optimization.
+
+
 ## 2025-05-04
 
 ### Added

web/app/docs/post-install/system/page.tsx

@@ -141,21 +141,40 @@ sudo systemctl restart systemd-journald
       <StepNumber number={5} />
       Optimize Memory Management
     </h3>
+
     <p className="mb-4">
-      This optimization adjusts kernel parameters to improve <strong>memory allocation</strong> and <strong>system responsiveness.</strong>
+      This memory optimization configures low-level kernel parameters to improve <strong>system responsiveness</strong> and <strong>RAM availability</strong>, especially on hosts with limited memory.
     </p>
+
     <p className="mb-4">
       <strong className="block">Why it's beneficial:</strong>
-        Efficient memory management prevents out-of-memory (OOM) conditions, 
-        enhances stability, and optimizes resource allocation in virtualization environments. 
-        This is particularly important for hosts running memory-intensive workloads or multiple VMs.
+      By tuning how Linux handles dirty memory pages, swap usage, and virtual memory mappings, this adjustment helps the system free memory more proactively and avoid sudden out-of-memory (OOM) errors — particularly valuable on Proxmox nodes with 1–4 GB of RAM.
     </p>
-      <p className="text-lg mb-2">This adjustment automates the following commands:</p>
+
+    <p className="mb-4">
+      It also enables safe overcommit behavior and, if supported, proactive memory compaction to make memory use more efficient across multiple processes and containers.
+    </p>
+
+    <p className="text-lg mb-2">This optimization applies the following configuration:</p>
+
     <CopyableCode
       code={`
-echo "vm.swappiness = 10" | sudo tee /etc/sysctl.d/99-memory.conf
-echo "vm.vfs_cache_pressure = 50" | sudo tee -a /etc/sysctl.d/99-memory.conf
-sudo sysctl -p /etc/sysctl.d/99-memory.conf
+    cat <<EOF | sudo tee /etc/sysctl.d/99-memory.conf
+    # Balanced Memory Optimization
+    vm.swappiness = 10
+    vm.dirty_ratio = 15
+    vm.dirty_background_ratio = 5
+    vm.overcommit_memory = 1
+    vm.max_map_count = 65530
+    EOF
+
+    # Enable memory compaction if supported by the system
+    if [ -f /proc/sys/vm/compaction_proactiveness ]; then
+      echo "vm.compaction_proactiveness = 20" | sudo tee -a /etc/sysctl.d/99-memory.conf
+    fi
+
+    # Apply settings
+    sudo sysctl -p /etc/sysctl.d/99-memory.conf
       `}
     />