passive-mode

How to get port in FTP protocol from passive mode?

由 浪尽此生 提交于 2020-05-24 08:34:39
问题 When I entered passive mode in FTP, I have got: 227 Entering Passive Mode (213,180,204,183,230,205). First 4 numbers are the IP addresses, but what are the two last? Are they two ports? 回答1: the last two are: p1 and p2 from RFC of ftp: http://www.faqs.org/rfcs/rfc959.html to get port, use: p1 * 256 + p2, then connect to this port 回答2: the port number is a 16-bit value between 0 and 65535 due to some constraints the authors have decided that all numbers between commas should be 8-bit (between

How to get port in FTP protocol from passive mode?

由 五迷三道 提交于 2020-05-24 08:31:07
问题 When I entered passive mode in FTP, I have got: 227 Entering Passive Mode (213,180,204,183,230,205). First 4 numbers are the IP addresses, but what are the two last? Are they two ports? 回答1: the last two are: p1 and p2 from RFC of ftp: http://www.faqs.org/rfcs/rfc959.html to get port, use: p1 * 256 + p2, then connect to this port 回答2: the port number is a 16-bit value between 0 and 65535 due to some constraints the authors have decided that all numbers between commas should be 8-bit (between

FTP server running on Port 2000 over NAT not working on Passive Mode

由 百般思念 提交于 2020-01-11 07:45:10
问题 I am running FILE-Zilla ftp server on windows in one of the LAN pc connect to my router. i am trying to access the FTP server from the network outside of the router using Router WAN ip (WAN-to-LAN) by adding Port-Forwarding rule (NAT) in the router. I have 2 cases here as per below configurations. the 1st is working and the 2nd is not (in Passive mode). Note: i have added the custom inbound rule in the windows 7 firewall where the ftp server is running. Configuration #1 Filezilla FTP server

How can I enable passive mode while using JSch as SFTP client?

由 坚强是说给别人听的谎言 提交于 2020-01-11 06:03:46
问题 I'm using JSch as SFTP client and now I need to enable passive mode because of some limitation of security. But I can not found a way to enable passive mode . Can somebody tell me how to do this? 回答1: "Passive mode" is a specialty of the FTP protocol. In normal FTP mode for each individual file the client listens on a port and the server has to connect to this. As many firewalls support only outgoing connections, there was added the passive mode - here the client connects to the server for

How can I enable passive mode while using JSch as SFTP client?

由 狂风中的少年 提交于 2020-01-11 06:03:19
问题 I'm using JSch as SFTP client and now I need to enable passive mode because of some limitation of security. But I can not found a way to enable passive mode . Can somebody tell me how to do this? 回答1: "Passive mode" is a specialty of the FTP protocol. In normal FTP mode for each individual file the client listens on a port and the server has to connect to this. As many firewalls support only outgoing connections, there was added the passive mode - here the client connects to the server for

FTP data connections reuse

由 不问归期 提交于 2019-12-22 09:02:35
问题 I am working on an FTP client for kicks and I am trying to understand the workflow of data connections. As I understand, the initial ( command ) connection is permanent until you quit. However, I am unsure of the data connection - is it re-initiated per-command? So you call PORT ... or PASV , get a second connection, do a LIST , get the results, connection closes, start over? Also, do you need to call PASV (or PORT ... ) again after each connection closes? It seems that when I try to test

FTP data connections reuse

由 穿精又带淫゛_ 提交于 2019-12-22 09:02:07
问题 I am working on an FTP client for kicks and I am trying to understand the workflow of data connections. As I understand, the initial ( command ) connection is permanent until you quit. However, I am unsure of the data connection - is it re-initiated per-command? So you call PORT ... or PASV , get a second connection, do a LIST , get the results, connection closes, start over? Also, do you need to call PASV (or PORT ... ) again after each connection closes? It seems that when I try to test

WinSCP command-line passive mode

由 孤街醉人 提交于 2019-12-08 02:49:45
问题 I am calling WinSCP via command line but I can't figure out how to set passive mode properly to the script. Here is the script now: option batch on option confirm off open ftp://user_and_pass_details:21 cd /out/ option transfer binary put C:\afile.text close exit 回答1: You can specify the passive option in your open: open ftp://user_and_pass_details:21 -passive=on|off Your full script will become: option batch on option confirm off open ftp://user_and_pass_details:21 -passive=on cd /out/

WinSCP command-line passive mode

由 感情迁移 提交于 2019-12-06 11:43:11
I am calling WinSCP via command line but I can't figure out how to set passive mode properly to the script. Here is the script now: option batch on option confirm off open ftp://user_and_pass_details:21 cd /out/ option transfer binary put C:\afile.text close exit You can specify the passive option in your open: open ftp://user_and_pass_details:21 -passive=on|off Your full script will become: option batch on option confirm off open ftp://user_and_pass_details:21 -passive=on cd /out/ option transfer binary put C:\afile.text close exit Please refer to: http://winscp.net/eng/docs/scriptcommand

How to enable FTP Passive Mode for Amazon EC2 server with IIS

由 依然范特西╮ 提交于 2019-12-03 12:36:50
问题 I originally had the issue when using pagelime which required users to use passive mode and did not support active mode. Getting active mode to work was pretty straight forward but getting passive to work took a lot more effort. I am using a Amazon EC2 server with IIS as well as a FTP Site. 回答1: The following link is what finally solved it for me. I will highlight some of the main things below in case the link stops working. https://forums.aws.amazon.com/thread.jspa?threadID=98905 In IIS,
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