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faq:tcpip [2020/02/13 23:49] – And finally, diffie-hellman with sha256 deuce | faq:tcpip [2020/04/14 19:22] – Re-wording the FTP-HTML stuff and adder link (re: FireFox) digital man |
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* [[#ftp_connect|Why can't users connect to my FTP server]]? | * [[#ftp_connect|Why can't users connect to my FTP server]]? |
* [[#ftp_nat|Why do FTP clients lock-up or time-out when listing directories or downloading files from my FTP server]]? | * [[#ftp_nat|Why do FTP clients lock-up or time-out when listing directories or downloading files from my FTP server]]? |
| * [[#ftp_html|Why won't a web browser render HTML content from my FTP Server]]? |
* [[#bind|Why do some or all of my servers get bind errors when starting or recycling]]? | * [[#bind|Why do some or all of my servers get bind errors when starting or recycling]]? |
* [[#bandwidth|How many nodes/clients/users can I support with my Internet connection]]? | * [[#bandwidth|How many nodes/clients/users can I support with my Internet connection]]? |
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If your firewall cannot dynamically open/forward FTP PASV data ports for incoming passive FTP data connections, you can specify a limited range of TCP port numbers to use for passive transfers by modifying the PasvPortLow and PasvPortHigh values in the ''[FTP]'' section of your ''[[dir:ctrl]]/[[config:sbbs.ini]]'' file. You will of course need to configure your firewall device to open/forward these ports to your FTP server. | If your firewall cannot dynamically open/forward FTP PASV data ports for incoming passive FTP data connections, you can specify a limited range of TCP port numbers to use for passive transfers by modifying the PasvPortLow and PasvPortHigh values in the ''[FTP]'' section of your ''[[dir:ctrl]]/[[config:sbbs.ini]]'' file. You will of course need to configure your firewall device to open/forward these ports to your FTP server. |
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| ===== FTP HTML ===== |
| :?: **Question:**\\ |
| Why will a web browser not (no longer) render the HTML content sent by the Synchronet FTP Server (i.e. ''00index.html'' generated by ''ftp-html.js'')? |
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| :!: **Answer:**\\ |
| For security reasons, modern web browsers (e.g. Google Chrome) have stopped rendering HTML content served by protocols other than HTTP or HTTPS. |
| * [[https://www.bleepingcomputer.com/news/google/chrome-and-firefox-developers-aim-to-remove-support-for-ftp/]] |
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| Some web browsers (e.g. Microsoft Edge) are removing FTP support altogether. |
| * [[https://www.ghacks.net/2020/03/19/mozilla-will-remove-ftp-support-in-the-firefox-web-browser/]] |
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===== Bind ===== | ===== Bind ===== |