Server Tools for VPS & Linux Servers

Q: What is an OpenVPN Multi-IP server?

OpenVPN Multi-IP is a VPN server architecture that uses multiple public IPv4 addresses to assign a dedicated IP address to each user or connection. This configuration allows each VPN session to appear as a separate network identity on the internet. OpenVPN Multi-IP is commonly used when multiple dedicated public IP addresses are required for different users or systems, such as automation tasks, account management, or proxy infrastructure.

Q: What is a self-hosted OpenVPN server?

Self-hosted OpenVPN is a private virtual private network installed directly on a VPS or dedicated server controlled by the user. This setup allows administrators to fully manage the server environment, network configuration, and encryption protocols. Self-hosted OpenVPN is commonly used to route internet traffic through a dedicated server IP address. It provides greater privacy, network control, and secure remote access for individuals or businesses.

Q: Why build your own VPN instead of using public VPN services?

Building your own VPN server gives you full control over the network infrastructure and IP address, instead of sharing resources with thousands of users on public VPN services. A private VPN server typically provides several advantages: Dedicated IP: uses a clean static IP instead of a shared address. Security control: full control over encryption configuration and logging policies. Stable connectivity: avoids congestion or IP blacklisting common on public VPN services. Remote access: enables secure access to internal networks (intranet).

A curated collection of the most useful tools, software, and open-source scripts (updated for 2026) for System Administrators to optimize, benchmark, and manage VPS and Dedicated Servers.

(Total: 131 ratings. Average 4.9, scale: 1 to 5)

Author: Tam Nguyen

Posted: 12-12-2024

Updated: 08-04-2026

Quick Summary

Server Tools is a core category within the VietHosting Sysadmin Resource Hub, compiling popular Linux server administration utilities and Bash scripts for VPS and Dedicated Server environments.

This page provides performance benchmarking tools, network diagnostics, secure SSH/SFTP clients, and exclusive automation scripts, allowing you to quickly deploy, measure, and optimize your infrastructure with just a few basic commands.

The tools in this directory are widely used in the following practical scenarios:

Comprehensive performance benchmarking when initializing a new Dedicated Server or VPS.
Diagnosing network issues, checking latency, and international routing.
Automating the installation of VPNs or server environment setups.
Managing files and executing remote commands securely via SSH/SFTP protocols.
Analyzing and optimizing MySQL/MariaDB database management systems.

1. Exclusive Utility Scripts by VietHosting

VietHosting's technical team has developed and open-sourced several automated Bash scripts to help you save hours of server configuration and management time.

Open Source Notice

The scripts developed by VietHosting are provided entirely free of charge to the community and are fully optimized for KVM VPS, Large VPS, and Dedicated Servers. They are highly compatible with popular Linux distributions such as Ubuntu, Debian, AlmaLinux, and Rocky Linux.

1.1. VH Benchmark Script – Comprehensive Speed Test

A lightweight tool to quickly test your Linux server's CPU performance, Disk I/O, and network speeds to multiple domestic (Vietnam) and international nodes. With just one command, you will receive a transparent performance report directly in your terminal.

BASH / TERMINAL

curl -sO https://mirrors.viethosting.com/scripts/vh-benchmark.sh && bash vh-benchmark.sh

View VH Benchmark guide & parameters →

1.2. OpenVPN Auto-Installer (Single-IP)

An automated OpenVPN server installer designed for standard KVM VPS packages. The script automatically generates a CA certificate, configures the firewall (UFW/Firewalld), and applies NAT masquerade routing in about 1 minute.

BASH / TERMINAL

curl -O https://mirrors.viethosting.com/scripts/openvpn-installer.sh && bash openvpn-installer.sh

View Single-IP OpenVPN installation documentation →

1.3. OpenVPN Multi-IP (1-to-1 SNAT)

An enterprise-grade VPN solution for Dedicated Servers or Large VPSs. The script scans available public IP ranges on your network interface and allows you to assign a dedicated, independent outbound IP to each VPN user (Identity Isolation) using modern nftables routing.

BASH / TERMINAL

curl -O https://mirrors.viethosting.com/scripts/openvpn-installer-multi-ip.sh && bash openvpn-installer-multi-ip.sh

Learn more about Multi-IP OpenVPN routing architecture →

1.4. SoftEther VPN Server Auto Installer (Single-IP)

A high-performance solution to deploy a multi-protocol VPN server in minutes. Unlike standalone OpenVPN configurations, this tool automatically provisions 4 protocols simultaneously: L2TP/IPsec, MS-SSTP, OpenVPN, and SoftEther Native. It features smart routing (SecureNAT/Local Bridge) and optional Let's Encrypt SSL integration.

BASH / TERMINAL

curl -O https://mirrors.viethosting.com/scripts/softether-installer.sh && bash softether-installer.sh

View Single-IP SoftEther VPN installation guide →

1.5. SoftEther VPN Server Multi IP (Identity Isolation)

An enterprise-grade upgrade combining multi-protocol versatility (L2TP/IPsec, MS-SSTP, OpenVPN) with strict identity isolation. The script provisions isolated Virtual Hubs and configures 1:1 SNAT routing to assign a dedicated outbound Public IP to each user, effectively eliminating collateral chain-ban risks.

BASH / TERMINAL

curl -O https://mirrors.viethosting.com/scripts/softether-installer-multi-ip.sh && bash softether-installer-multi-ip.sh

Learn more about SoftEther VPN Multi-IP architecture →

2. Network & Performance Testing Tools

2.1. YABS (Yet Another Bench Script)

One of the most popular and trusted benchmark scripts in the global server community. YABS combines disk performance testing (fio), processor performance (Geekbench), and network bandwidth (iPerf3) into a single, comprehensive report.

BASH / TERMINAL

curl -sL yabs.sh | bash

2.2. speedtest-cli

The most popular tool to test internet bandwidth (Download/Upload speed) via the command line against Speedtest.net servers worldwide.

Homepage & Installation: GitHub - speedtest-cli

2.3. iPerf3

An industry-standard tool for Network Engineers to accurately measure the maximum achievable bandwidth (throughput) between two servers.

Official Website: iperf.fr

2.4. MTR (My Traceroute)

The perfect combination of ping and traceroute. MTR is an essential diagnostic tool for identifying network drops, congestion, and monitoring continuous latency across individual routing hops.

Homepage: GitHub - mtr

2.5. Traceroute / tcptraceroute

Traceroute is a classic diagnostic tool used to track the route packets take from your server to a destination host and identify exactly where network latency or routing issues occur. Unlike standard ping, tcptraceroute uses TCP packets to bypass firewalls that block ICMP traffic.

Usage & Installation:

On Windows (Built-in): Open CMD and use the command tracert [IP/Domain].
On Linux (AlmaLinux / Rocky Linux / RHEL 8+):

BASH / TERMINAL

dnf install traceroute tcptraceroute -y

On Linux (Ubuntu / Debian):

BASH / TERMINAL

apt install traceroute tcptraceroute -y

3. Server Connection Software (SSH & SFTP)

Security Note

Only download server connection clients directly from the official developer websites (links provided below) to avoid the risk of malware or server credential leaks.

3.1. SSH Terminal Clients

Bitvise SSH Client: Extremely lightweight and stable, featuring a built-in SFTP window. Highly favored by Windows users. (Download Bitvise)
MobaXterm: An incredibly powerful "all-in-one" tool for Sysadmins (supports multi-tab SSH, X11, RDP, VNC). (Download MobaXterm)
Termius: A modern interface with cross-platform configuration syncing (Windows, Mac, iOS, Android). (Download Termius)

3.2. SFTP Clients (File Management)

WinSCP: The most popular open-source software on Windows for secure file transfers over SCP/SFTP protocols. (Download WinSCP)
FileZilla: A cross-platform client specialized for handling large and stable FTP/SFTP connections. (Download FileZilla)

4. Database & System Optimization Tools

4.1. MySQLTuner

A specialized Perl script designed to quickly analyze your MySQL/MariaDB server configuration. This tool evaluates statistical indicators and provides actionable tuning recommendations to accelerate database processing speeds and prevent RAM overload.

Homepage & Source Code: GitHub - MySQLTuner

5. Best Practices When Using Server Tools

To ensure safety and accuracy when utilizing the system administration tools above, please keep the following in mind:

Never run Disk I/O Benchmarks on a Production System: Disk testing tools (like fio or YABS) can cause high I/O overload, leading to website downtime or corruption in active databases.
Test network from multiple nodes: When testing network speeds, try ping or iperf3 from various geographical locations and ISPs to obtain the most objective results.
Backup before optimizing: Always back up your original configuration file before applying any parameters recommended by MySQLTuner to your my.cnf.

Ready to test these tools on high-performance infrastructure?

You can deploy and utilize all the scripts and tools above directly on VietHosting's KVM VPS or Dedicated Server packages, featuring full root access immediately upon activation.

Explore KVM VPS Discover Dedicated Servers

More Technical Guides

Explore additional technical guides and practical tutorials to optimize performance and manage your server infrastructure efficiently.

Technology Partners

Partnering with trusted technology brands to deliver the highest quality service.

Frequently Asked Questions (FAQ)

Frequently Asked Questions and Essential Knowledge about VietHosting Services

What is an OpenVPN Multi-IP server?

OpenVPN Multi-IP is a VPN server architecture that uses multiple public IPv4 addresses to assign a dedicated IP address to each user or connection. This configuration allows each VPN session to appear as a separate network identity on the internet.

OpenVPN Multi-IP is commonly used when multiple dedicated public IP addresses are required for different users or systems, such as automation tasks, account management, or proxy infrastructure.

Why use an OpenVPN Multi-IP architecture instead of multiple VPS servers?

OpenVPN Multi-IP allows multiple public IP addresses to be managed on a single server, instead of deploying multiple independent VPS instances.

In this architecture, the VPN server assigns different IPv4 addresses to individual users or groups using SNAT routing. This enables multiple independent network identities to operate on the same infrastructure.

Compared with running many small VPS servers, a Multi-IP setup reduces infrastructure costs, simplifies system management, and centralizes VPN configuration on a single host.

Instead of maintaining fragmented servers, you can deploy a high-resource Large VPS or a Dedicated Server at VietHosting to run a centralized Multi-IP VPN infrastructure.

What is a self-hosted OpenVPN server?

Self-hosted OpenVPN is a private virtual private network installed directly on a VPS or dedicated server controlled by the user. This setup allows administrators to fully manage the server environment, network configuration, and encryption protocols.

Self-hosted OpenVPN is commonly used to route internet traffic through a dedicated server IP address. It provides greater privacy, network control, and secure remote access for individuals or businesses.

Why build your own VPN instead of using public VPN services?

Building your own VPN server gives you full control over the network infrastructure and IP address, instead of sharing resources with thousands of users on public VPN services.

A private VPN server typically provides several advantages:

Dedicated IP: uses a clean static IP instead of a shared address.
Security control: full control over encryption configuration and logging policies.
Stable connectivity: avoids congestion or IP blacklisting common on public VPN services.
Remote access: enables secure access to internal networks (intranet).