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FAQs (Frequently Asked Questions) are a set of common questions and answers designed to help users quickly find information about a product or service.
Xanix
By Xanix
• 7 articles

Technical Issues

Technical Issues Question: Why can't I connect to my server using SSH? Answer: The server's password might not have been set yet. Please wait a few minutes and try again. If the issue persists, try using Doprax’s terminal, which utilizes a private key for authentication. Question: What should I do if my application fails to deploy? Answer: Ensure the deployment environment is configured correctly. Check for error logs in the deployment tab for further debugging. Ensure all dependencies are listed in your requirements.txt or Dockerfile. Question: How can I debug server errors? Answer: Use the monitoring tools provided in the dashboard or SSH into the server to check logs in /var/log. Question: I can't SSH to my server. It looks like SSH protocol is blocked on my ISP. However, I can ping the server. Answer: Please try using our terminal, which utilizes a private key for authentication. You can access it directly from your VM dashboard. Question: I'm getting an error saying port 25 is closed. Have you blocked it? Answer: Yes, port 25 is closed by default as it can be used for spam. Question: When I tunnel on a Hetzner server, it doesn't work, but it works on OVH. Are there any port limitations on Hetzner? Answer: By default, there is a firewall enabled on Hetzner machines. If needed, we can remove the firewall. Send us your server's IP for assistance. Question: How do I resolve frequent disconnections from my server? Answer: Frequent disconnections could be due to network instability or firewall settings. Check your local network first, and ensure that the server's firewall allows persistent SSH connections. Question: What should I do if my server is inaccessible after a reboot? Answer: Check if the server's IP address or firewall rules have changed after the reboot. Ensure that the SSH service is running, and try reconnecting. Question: My server is running, but my application isn’t accessible. What could be wrong? **Answer:**Ensure your application is listening on the correct port and that the port is open in the firewall. Check your application logs for errors. Question: I need to use email services, but ports 465 and 587 are blocked. Can I open them? Answer: Yes, but you need to request Doprax support to disable the firewall for your server. Question: I disabled the firewall, but after rebuilding my server, it was enabled again. Why? Answer: Firewall settings reset after a rebuild. If this happens, you need to contact support again to have it removed. Question: Can you permanently disable the firewall for my account? Answer: Yes, but it’s not recommended since your account may be flagged for abuse. Instead, disable the firewall only for specific servers when needed. Question: I need to send emails from my VPS, but SMTP ports (465, 587) are blocked. What should I do? Answer: SMTP ports are often blocked by default to prevent spam. You can: 1. Ask support to disable the firewall for your server. 2. Use a third-party SMTP relay service like SendGrid, Mailgun, or AWS SES. 3. Try port 2525, which some providers allow as an alternative. Question: Why does my VPS randomly reboot without my input? Answer: Possible reasons include: 1. High resource usage – Check CPU & RAM usage. 2. Datacenter issues – Some providers perform automatic reboots for system updates. 3. Misconfigured cron jobs – Run crontab -l to check for unexpected reboot commands. What should be done if a virtual machine (VM) remains stuck in the "Deploying" status for an extended period? If a VM is stuck in the Deploying process for too long, it is recommended to delete it and create a new one. If the issue persists, refresh the page or check the VM panel to update the status. If the problem continues, contact support for further investigation. Why does SSH access fail after a server reboot? If SSH access is lost after rebooting, try the following steps: - Check the VM panel to ensure the server is actually online. - Refresh the page or manually power cycle the VM from the panel. - If SSH still does not work, use the web terminal to check if the system is booting properly. - If the web terminal only shows a black screen, it may indicate a deeper issue, and support should be contacted. Why is a server not responding to pings or SSH even though it appears online in the panel? If a server does not respond to ping or SSH, but the panel shows it as online, it may be due to: - A firewall rule blocking connections (especially on Hetzner servers). - Network issues causing the server to be unreachable. - A misconfigured SSH service that needs to be restarted. - If the issue persists after checking these, restarting the VM or contacting support is recommended. Why does a server's domain sometimes not appear after creation? Occasionally, a newly created server does not automatically receive a domain. If this happens: - Wait a few minutes and refresh the page. - If the domain still does not appear, try rebooting the server from the VM panel. - If the issue continues, submit a domain request through the panel. How can port 587 be opened for sending emails? By default, ports 465 and 587 are blocked for security reasons. However, it is possible to disable the firewall on a specific server upon request. If email sending is required, request firewall removal via support. What can cause a server to be active in the panel but inaccessible? If a server appears active in the panel but cannot be accessed: - Click on the server to update its status. - Check if it is actually responding to ping requests. - Verify whether any recent changes (such as firewall updates or reboots) caused the issue. - If necessary, try restoring the server using a snapshot. Q: I have a server with 4 vCPU, 8GB RAM, 80GB disk, and 20TB traffic. Can I extend the RAM and storage? A: This depends on the provider. Some allow live upgrades, while others require a migration to a new plan. Check your cloud provider’s documentation. Q: How can I properly configure an IPv6 GRE tunnel between two remote servers? A: Ensure both servers support IPv6 and enable net.ipv6.conf.all.forwarding=1. Configure GRE tunnel using: ip tunnel add gre1 mode gre remote <remote_IP> local <local_IP> ttl 255 Then, assign an IP and bring up the interface: ip addr add dev gre1 ip link set gre1 up Q: My iptables rules are not properly redirecting traffic after setting up tunneling. How can I fix this? A: Verify NAT and FORWARD chain rules. Use iptables -t nat -L -v to inspect existing rules and adjust forwarding policies.

Last updated on Mar 27, 2025

Account-related questions

Account-Related Questions How do I reset my Doprax password? Go to the login page, click on "Forgot Password," enter your registered email, and follow the instructions. Why can't I verify my email address? Ensure the email is entered correctly, and check your spam folder for the verification email. How do I change the email associated with my account? Contact Doprax support to update your email address. My account credit has run out, and the servers are off. Do I need to turn them on manually? Yes, you will need to manually turn on your servers once you add more credit. I bought a domain yesterday, but it's not showing in my profile. Currently, each domain is linked to a specific server. When the server is deleted, the domain is also deleted. I’m unable to log in even after resetting my password. What should I do? Clear your browser cache or try logging in from an incognito window. If the issue persists, contact Doprax support. Why is Cloudflare blocking a server’s IP? Some IP addresses may be blacklisted by Cloudflare due to previous abuse reports. To avoid this issue: - Change the server's IP (available for Hetzner at a cost of $1). - If on another provider, delete and recreate the server to get a new IP. - Before purchasing a new server, test its IP using external blacklist-checking tools. Why does UDP traffic not work on some servers? UDP traffic should function normally across all providers. However, if UDP is blocked: - Check firewall rules in the VM panel. - Ensure that the application using UDP is correctly configured. - If the issue persists, contact support for investigation. Are there any datacenters with port speeds above 1 Gbps? - Hetzner: Typically 1 Gbps. - DigitalOcean: Up to 1 Gbps. - OVH: 100 Mbps to 500 Mbps, depending on the plan. - Vultr: 1-2 Gbps, making it one of the fastest options. Can a Doprax-assigned domain be used with Cloudflare? No, Doprax subdomains cannot be manually added to Cloudflare because they are already managed under Doprax’s Cloudflare account. If a custom domain is owned, it can be linked to Cloudflare by changing its nameservers. Q: The ports on my German server are not accessible externally. Why is this happening? A: If you are using Hetzner, their firewall may be blocking access to certain ports. Check their control panel and modify firewall rules to allow necessary ports. Q: Which protocols can I use with Vultr virtual machines? A: Vultr does not impose protocol restrictions, so you can use any protocol that your ISP and network allow. Common protocols include TCP, UDP, ICMP, and GRE for tunneling. Q: Is port 25 open on virtual machines by default? A: Many cloud providers block port 25 to prevent spam. If port 25 is blocked, use alternative SMTP ports like 587 or 465.

Last updated on Mar 27, 2025

Billing and Financial Questions

Why was I charged unexpectedly? This could be due to additional traffic or other services used beyond your plan's allowance. Check the "Billing" section for details. What is the refund policy for unused services? Doprax does not offer refunds for unused services. However, you can delete servers to stop further charges. I have purchased an hourly server. Can I switch to a monthly plan? All our servers are billed hourly based on your usage. As long as you have sufficient credit in your account, the server will remain active and operational. Why has my account credit spent more than my account cost? Check for extra traffic charges in the Network section of each VM. High usage rates may result in additional charges. How much does extra traffic cost for different providers? - DigitalOcean & Vultr: $20 per extra TB - Hetzner: $2 per extra TB Does the image showing "Unlimited" mean truly unlimited traffic? Yes, the image indicates unlimited traffic, but this applies only to OVH. However, some providers may have a fair usage policy, so it's always best to check the terms of service to confirm any hidden limits. How can I view a detailed breakdown of my charges? You can view a detailed billing breakdown in the "Billing History" section of your account dashboard. Question: I want to get a Hetzner VPS, but the traffic costs are high without 20,000 GB. Why? Answer: Hetzner’s included traffic varies by location: - Germany & Finland: 20TB included. - USA & Singapore: Only 1TB or 2TB included. Question: Why does Vultr allow more than 1,000GB of traffic? Answer: Vultr provides 1TB of traffic per month, but there is a daily usage limit. Exceeding it will result in additional charges. Q: Can a server be switched from hourly billing to a monthly plan? All servers operate on a pay-as-you-go model and are charged hourly. There is currently no option to switch to monthly billing. Q: What happens if an account runs out of credit? If an account runs out of credit: - All active servers will be automatically shut down. - Once credit is added again, servers must be manually restarted from the panel. Q: Are both upload and download traffic counted toward usage? Yes, both upload and download traffic are counted toward the total bandwidth usage. Users can track usage in the Network tab of the dashboard. Q: How much does extra traffic cost for different providers? - Hetzner: $2 per extra TB. - DigitalOcean & Vultr: $20 per extra TB. Q: Can a refund be requested for a mistakenly charged domain? If a domain was charged but not assigned, the support team should be contacted for a possible refund. Q: I have added credits to my account, but the payment has been pending for more than 24 hours. Why is it taking so long? A: Payment processing times depend on the payment method used. Crypto transactions may take longer due to network congestion, while credit card or PayPal payments should process faster. If the delay exceeds 24 hours, contact support with the transaction ID. Q: I charged my account with TRX, but my account hasn’t been credited. What should I do? A: TRX payments usually process within an hour, but if it's pending for too long, check the transaction hash on the blockchain. If the transaction is successful but not reflected in your account, contact support with the transaction details. Q: I paid using Binance Smart Chain (BNB), but the balance hasn’t been added to my account. How can I resolve this? A: Ensure that you sent the correct amount to the designated wallet address and that the transaction is confirmed on the blockchain. If the funds are deducted but not credited, provide the transaction hash to support. Q: My Vultr server is consuming my account balance too quickly, even though based on my calculations, it should last longer. What could be the issue? A: Vultr charges by the hour, and additional charges may apply for bandwidth overages or snapshot storage. Check your usage details in the billing section. If there’s an unexpected charge, reach out to Vultr’s support for clarification. Q: Does shutting down a server stop billing, or will I still be charged? A: Shutting down a server does not stop billing, as resources like CPU, RAM, and storage are still allocated. To stop charges, you must delete the server. Q: How is the cost calculated if I stop my server but do not delete it? A: You will still be charged for reserved resources like storage, IP addresses, and backups. Some providers may also charge for stopped instances at a lower rate.

Last updated on Mar 27, 2025

Product/Service Usage Questions

How do I create and deploy a new server? Use the dashboard to configure and deploy your server. Choose the desired specifications and click "Deploy." What are the supported programming languages and frameworks? Doprax supports all major languages (Python, Node.js, Java, etc.) and frameworks (Flask, Django, React, etc.). Can I integrate Doprax with external tools like GitHub? Yes, Doprax allows you to link your GitHub repository for seamless deployment. Where can I see my free quota for traffic usage? You can check the Network tab of your VM to view your free traffic quota. Can I assign an IPv6 address to my VM? All VMs come with an IPv6 address by default. Can I transfer files to this virtual server? Yes, use the scp command or any file transfer tool to move files from your local machine to the server. How do I monitor my server’s performance? Use the "Metrics" tab in your Doprax dashboard to monitor CPU, memory, and network usage. Question: How fast is Vultr compared to OVH? Answer: Vultr servers usually offer 1 to 2 Gbps (1,000 to 2,000 Mbps), which is much faster than OVH. Question: Why are my VMs running too slow? Answer: Check the following: 1. CPU and RAM usage – If overloaded, performance drops. 2. ISP restrictions – Your provider might be slowing down your IP. 3. Running processes – Use top or htop to check background activity. 4. Disk space – Run df -h to ensure the disk isn’t full. 5. Datacenter location – A far location can cause latency issues. My VPS connection keeps dropping, and I can’t maintain a stable SSH session. What should I check? Answer: Frequent disconnects could be due to: - Network issues from your ISP – Try connecting with a VPN or different network. - High packet loss – Run ping [your_server_IP] -t and check if there are lost packets. - Firewall blocking SSH traffic – If you are using Cloudflare proxy, disable it for SSH connections. - Low system resources – If your CPU or RAM usage is at max, the server may crash. Question: I need a test IP before purchasing a VPS to check network speed. Can you provide one? Answer: No, Doprax does not provide test IPs for security reasons. However, you can deploy a small instance, test the connection, and then delete it if it doesn’t meet your needs. Q: I have a server with 4 vCPU, 8GB RAM, 80GB disk, and 20TB traffic. Can I extend the RAM and storage? A: This depends on the provider. Some allow live upgrades, while others require a migration to a new plan. Check your cloud provider’s documentation. Q: I am trying to set up a V2Ray server and use my router as the client. Is there any documentation on how to configure my router properly? A: Configuration varies by router model. Check if your router supports V2Ray or Shadowsocks. Alternatively, install a client on a device behind the router and forward traffic. Q: Is there documentation available on configuring a router to connect to a VPS from Doprax? A: Doprax does not have specific router configuration guides, but general VPN and proxy guides can help. Ensure your VPS firewall allows incoming connections

Last updated on Mar 27, 2025

Advanced Questions

Can I assign multiple IP addresses to a single server? Currently, only one IP address is assigned per server. Additional IP options may be introduced in the future. Can I disable IPv6 on my server? Yes, you can disable IPv6, but the process depends on your operating system. Since you're using Ubuntu, you can disable it manually through system settings or by modifying network configurations. Can I deposit USDT from my Binance account? Yes, crypto payments are automatic. Once the transaction is confirmed, your balance will be updated. Can I assign multiple IP addresses to a single server? Currently, only one IP address is assigned per server. Additional IP options may be introduced in the future. Can I use the VPS for mining? No, mining is strictly prohibited. Accounts found mining will be blocked immediately. Can I deploy a machine-learning model on Doprax? Yes, you can deploy ML models using frameworks like Flask or FastAPI. Doprax supports Python and all necessary libraries. Can I use Doprax for hosting a game server? Yes, you can host game servers as long as they comply with Doprax’s terms of service. Question: Can I retrieve all my server credentials (IP & password) using a single API request? Answer: No, for security reasons, Doprax does not allow retrieving all credentials in one request. You must manually check each server in the panel or request individual credentials via API. Question: How can I turn on multiple servers at once using the API? Answer: Currently, there is no direct API endpoint for bulk starting servers. However, you can use a script to loop through your server list and turn them on. Question: How can I connect my subdomain to Cloudflare? Answer: - If your domain is from Doprax, it is already on Cloudflare, and you don’t need to add it manually. - If you want to use Cloudflare’s proxy (orange cloud), enable it in your Cloudflare dashboard. - SSH will not work with Cloudflare proxy – you must disable it for SSH connections.

Last updated on Feb 21, 2025

Server Management

Q: If I delete the server now, do I have to pay for the entire server? No, Doprax uses pay-per-hour billing. You only pay for the time the server was active. Q: Can I transfer files to this virtual server? Yes, use the scp command to transfer files from your local machine to the server. Q: How do I back up my server data? Use Doprax’s snapshot feature to create backups. You can also manually back up data to an external storage service. Q: Do you offer Windows servers? No, Doprax does not support Windows due to copyright issues. Q: How can I add a PTR (Reverse DNS) record for my server? Currently, you need to send a support request, and we will set up the PTR record for you. Q: Is there a way to get a list of all my servers' IPs and passwords in one request? For security reasons, we do not provide a single file with all your server credentials. You can retrieve this information manually from your dashboard. Q: How do I set up Cloudflare for my domain? If you are using a Doprax-provided subdomain, it is already on Cloudflare and does not need additional setup. If you have a custom domain, you need to add it to Cloudflare and update its nameservers. Q: I enabled Cloudflare proxy, but now I can’t SSH into my server. What should I do? Cloudflare’s proxy only works for HTTP/HTTPS traffic. To fix this, disable Cloudflare proxy (orange cloud icon) for your SSH connection. Question: Why is it taking too long to prepare my VM? Answer: The deployment process usually takes under 3 minutes, as it needs to set up passwords and initialize the system. If it takes longer, check the Doprax panel or contact support. Question: Some of my servers are stuck in "New" status and are not ready after 15 minutes. What should I do? Answer: Sometimes, the server is running, but the status has not been updated. Try: 1. Clicking on the server in the panel to refresh the status. 2. Waiting a few more minutes as initialization may take longer. 3. Checking the Doprax terminal to see if SSH access works. Question: Can I disable IPv6 on my VPS? Answer: Yes, but it depends on your OS. If you’re using Ubuntu, disable IPv6 using: sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1 Q: Why do newly created servers take a long time to become active? Normally, servers should be fully active within a few minutes, but delays can occur due to: - High demand causing slower provisioning. - Too many servers being created at once (e.g., creating 100 VMs simultaneously). - Users deleting servers too quickly before they fully deploy, which can cause failures in provisioning new ones. Q: Is it allowed to frequently create and delete a large number of servers? For Hetzner, frequent deletion and recreation of VMs is not allowed as it disrupts IP management and can cause system issues. For DigitalOcean and Vultr, frequent creation and deletion is allowed, but users should be mindful of usage limits. Q: What should be done if a server remains in "Initializing" for too long? If a server is stuck in the Initializing state: - Refresh the page or click on the server to update the status. - If it does not change, restart the server. - If the server still does not respond, restoring from a snapshot may be necessary. Q: I installed OpenVPN on my server, but I don’t know the username and password. Can you guide me? A: By default, OpenVPN creates a user configuration file (.ovpn) that contains authentication details. Check /etc/openvpn/ or /home/user/ for the credentials. You may also need to reset the password using passwd if authentication fails. Q: I bought a server, but the password is not suitable for logging in. What should I do? A: Ensure that you are entering the correct credentials. If you suspect the password is incorrect, try resetting it from your VPS control panel or use SSH key authentication if available. Q: My server is not rebooting. What could be the reason for this issue? A: Possible reasons include: - High CPU/memory usage preventing the system from shutting down properly. - A corrupted file system. Run fsck on boot. - Cloud provider restrictions or issues. Try rebooting from the provider’s control panel. Q: I cannot connect to my server via SSH. What should I check? A: - Ensure the server is running. - Check firewall rules (iptables -L or ufw status). - Verify SSH service is running (systemctl status ssh). - If using a cloud provider, check if the correct security group allows SSH (port 22). Q: Can I link my Iranian server's IP address to a domain? A: Yes, but some registrars may restrict Iranian IPs due to sanctions. You can use Cloudflare as an intermediary DNS service. Q: Is there a way to set up a domain to be used with multiple servers? A: Yes, using DNS load balancing or a reverse proxy like Nginx. However, Doprax currently allows a domain to be assigned to only one server at a time. Q: I have a server with 4 vCPU, 8GB RAM, 80GB disk, and 20TB traffic. Can I extend the RAM and storage? A: This depends on the provider. Some allow live upgrades, while others require a migration to a new plan. Check with your cloud provider’s documentation. Question: Can I frequently create and delete large numbers of VMs in Hetzner? Answer: No, Hetzner does not allow frequent creation and deletion of large numbers of VMs, as it disrupts the system and IP management. It is recommended to plan resource allocation carefully to avoid issues. Question: What should I do if my Hetzner server’s IP gets blocked by Iranian ISPs? Answer: Instead of deleting and creating a new server, you should change the IP. Hetzner allows changing the IP for a small fee. This is a more efficient solution than deleting and recreating a server. Question: Besides Hetzner, which other data centers allow IP changes? Answer: Currently, only Hetzner supports IP changes. Other data centers do not have this option, and you will need to create a new server to get a different IP.

Last updated on Mar 27, 2025