Help Center
Guides and tutorials for cloud servers, VPS deployment, networking and billing.
Buying Guide
How to Choose a Japan VPS: A Complete Guide to Tokyo Nodes
A Japan VPS is one of the most popular choices for users in mainland China, Hong Kong, Tai
VPS vs Cloud Server: What's the Difference?
Beginners often agonize over whether to buy a VPS or a cloud server. The two overlap but d
Understanding Bandwidth and Traffic on Overseas VPS
The most easily confused terms when buying a VPS are bandwidth and traffic. They are compl
Australia and US VPS: Which Workloads Fit Which Region
Besides Japan, Australia and the US are popular 00Shark regions. Physical location determi
Common Traps of Cheap VPS and How to Avoid Them
VPS prices vary wildly, sometimes several times over for the same spec. Chasing the cheape
How to Choose an Overseas Server for Cross-Border E-commerce
For cross-border e-commerce and independent foreign-trade sites, the wrong server directly
Choosing a VPS Operating System: Ubuntu, Debian or Something Else
The first decision on a new VPS is which operating system to install. For most users the a
How to Size a VPS: CPU, RAM and Disk by Workload
"How many cores and how much RAM do I need?" is the most common pre-sales question. Unders
Deployment
Beginner's Guide: Connecting to a Linux VPS via SSH
After getting a Linux VPS, the first step is to log in remotely over SSH. This guide walks
How to Connect to and Manage a VPS from Windows
How a Windows user connects to a VPS depends on whether the server runs Linux or Windows.
How to Host Your First Website on a VPS with Nginx
With a VPS you can host websites yourself. This guide uses the popular Nginx to take you f
Deploy Apps Fast on a VPS with Docker
Docker lets you package an app and its dependencies into an image that runs on any VPS wit
How to Get and Install a Free SSL Certificate
HTTPS is now standard: it protects data, helps SEO and builds user trust. With Let's Encry
Manage Your VPS Visually with aaPanel: Install and Secure It
If you are not comfortable with the Linux command line, a web control panel like aaPanel l
Build a WordPress Site on a VPS: From Zero to Live
WordPress powers over 40% of the web, and running it on your own VPS is faster and more fl
Pointing a Domain to Your VPS: A DNS Primer
After buying a domain and a server, the first step is pointing the domain at the server. T
VPS Backup Strategies: From Manual to Fully Automated
Servers lose data in many ways: accidental deletion, failed upgrades, intrusions, disk fai
Network & Latency
How to Test VPS Latency and Packet Loss (ping and mtr)
The most direct way to judge a VPS network is to measure latency and packet loss. Here are
Optimizing Latency from Mainland China to a Japan VPS
Japan is close to China with low theoretical latency, but real experience depends on route
What Are BGP and CN2 Lines, and How They Affect Latency
When buying a VPS you'll see terms like BGP, CN2 and optimized lines. Understanding them h
How to Diagnose and Fix VPS Packet Loss
Packet loss causes slow page loads, flaky connections and choppy video. Diagnosing it star
How to Pick a Low-Latency Data Center Node for Your Workload
For the same app, the right data-center node makes a world of difference in user experienc
Speed Up and Protect Your VPS Website with Cloudflare
Cloudflare's free plan gives a VPS-hosted website three things: a global CDN, free SSL and
VPS Speed Testing: speedtest, iperf3 and Real Download Tests
"How fast is this VPS, really?" Gut feeling is unreliable — measure it. This article cover
Account & Billing
How to Register and Place an Order at 00Shark
Buying a cloud server at 00Shark is simple. Here are the full steps. 1. Browse products Op
What Payment Methods Does 00Shark Accept?
To serve customers worldwide, 00Shark accepts several payment methods. Because availabilit
Server Expiry, Renewal and Data Retention
To avoid downtime and data loss, keep an eye on your server's expiry and renewal. Renew be
Refund and Billing Policy Overview
This is an overview of 00Shark's billing and refund principles. Exact terms may vary by pl
How to Reach Support and Get Help
When something goes wrong, contacting support is the fastest path to a fix. 00Shark offers
Troubleshooting
What to Do When Your VPS Won't Connect (SSH Timeout)
A failed SSH connection is one of the most common issues. Don't panic — work through the s
How to Reset a Forgotten Root Password
Forgetting your server password is no cause for panic — there are usually a few ways to re
Step-by-Step: Troubleshooting a Website That Won't Load
A site that won't load has many causes; checking layer by layer from domain to server pinp
Emergency Response When Your VPS Faces CC/DDoS Attacks
When a server suddenly sees a traffic surge, maxed CPU and an unreachable site, it may be
VPS Running Out of Memory: Diagnosing OOM and Adding Swap
The site dies at midnight, the database restarts for no reason, SSH lags until you cannot
VPS Disk Full: How to Find and Clean Up Space
A 100% full disk is worse than it sounds: the database refuses writes, the site throws 500
Diagnosing 100% CPU Usage on a VPS
A maxed-out CPU shows up as a slow website, laggy SSH typing and timed-out cron jobs. The