发了信让GD那帮我检测是哪边出问题，还有就是FTP为什么上不了，以下是GD的回复，版主看看是不是又是机器人回答的话？
Discussion Notes
Support Staff Response
Dear Sir/Madam,
Thank you for contacting Online Support. I understand you need assistance with FTP access and a 503 error showing at your Dedicated IP.
503 Error
This is most likely caused by your site having met its maximum concurrent connection limit. A concurrent connection is the number of simultaneous connections available to your site. Concurrent connections are related to requests being made to your site. This would reference the number of authenticated "handshakes" between a client and/or server during any given time before all communications have been disconnected.
Things that can affect concurrent connections are requests to view website pages, file downloads and database queries. It's possible that if you have multiple requests to have a file downloaded through your site that this connection is staying open and is ultimately causing your site to think it has more traffic that it actually does. Larger files cause connections to remain open longer, while your site's visitors download them. Smaller files/text lead to shorter connections. As an example, a blog with fewer readers might perform fine with an economy account and its 50 concurrent connections. However, a blog with streaming media or a higher patronage would probably need more connections.
Shared hosting accounts are subject to the following limits:
Linux
Linux Deluxe - 100 Concurrent Connections
Linux Unlimited - 200 Concurrent Connections
Our 4GH® accounts allow many more connections. This number varies, but is at the following minimum amounts:
Linux 4GH limits
Linux 4GH Deluxe: 300 connections or more
Linux 4GH Unlimited: 600 connections or more
MySQL connections are limited to 200 from your hosting server to the MySQL server.
MSSQL connections are limited to 100 concurrent connections.
Larger files also cause connections to remain open longer, while your site's visitors download them. Smaller files/text lead to shorter connections. As an example, a blog with fewer readers might perform fine with an economy account and its 50 concurrent connections. However, a blog with streaming media or a higher patronage would probably need more connections.
To resolve these issues, consider upgrading to a plan with a higher concurrent connection limit. See Upgrading or Downgrading Your Hosting Account.
FTP Access
I am able to connect to your FTP account at this time. Please disable any firewall or similar software running on your machine, as it may mistake FTP activity for malicious behavior and block it accordingly. If that does not help, try using a different FTP program. If you use Windows, you can try to connect using Internet Explorer as well by typing ftp://hostingusername@yourdomain.com where "hostingusername" is replaced by your hosting (FTP) username, and "yourdomain.com" by your domain name. It will prompt you for a password, then should connect you to your account. If none of those options work, please access the account via FTP on another computer, ideally one connected to the Internet at another location.
If you are still not able to connect to the FTP, please indicate the error message (and if possible the FTP session log showing the commands used to connect). This will help us diagnose any issue you may be having with the FTP account. I apologize for any inconvenience.
Before people can see your website, you need to upload your site's files. We're flexible and let you do this a few different ways:
Using the FTP File Manager
For more information, see Uploading Files Using the FTP File Manager.
Using FileZilla (Recommended)
For more information, see Connecting to Your Hosting Account with FileZilla (FTP).
Using the third party application (website software or FTP client)
For more information, see Third-Party Website Creation and FTP Documentation for Your Shared Hosting Account.
Some popular FTP clients are FileZilla, Fetch (Mac), and gFTP (Linux). You might also be able to upload your site through the software used to create it, such as Adobe Dreamweaver® or Microsoft Expressions Web®.
Every FTP client works differently, however you need to configure the following settings to connect to your hosting account: |
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