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我试图用lftp通过ftp下载一个非常大的文件。但pget只能打开一个TCP连接，据我所知netstat -na。这是我的命令和调试输出：lftp pget ...不打开多个线程
脚本：
open -u username,password aftp.linksynergy.com
pget -n 5 /36342_2923873_mp.txt.gz -o buy.com.csv.gz
运行：
[email protected]:/mnt/tmp/lftp_test$ lftp -d -f lfscript
---- Resolving host address...
---- 1 address found: 63.123.248.17
---- Connecting to aftp.linksynergy.com (63.123.248.17) port 21
<--- 220 gcws3002.private.linksynergy.com FTP server (Version wu-2.6.2-9) ready.
---> FEAT
<--- 530 Please login with USER and PASS.
---> AUTH TLS
<--- 500 AUTH command not supported.
---> USER username
<--- 331 Password required for username.
---> PASS *******
<--- 230 User username logged in.
---> FEAT
<--- 500 'FEAT': command not understood.
---> PWD
<--- 257 "/" is current directory.
---> TYPE I
<--- 200 Type set to I.
---> SIZE /36342_2923873_mp.txt.gz
<--- 550 /home/client/username//36342_2923873_mp.txt.gz: not a plain file.
---> MDTM /36342_2923873_mp.txt.gz
<--- 550 //36342_2923873_mp.txt.gz: No such file or directory.
---> PASV
<--- 227 Entering Passive Mode (63,123,248,17,29,90)
---- Connecting data socket to (63.123.248.17) port 7514
---- Data connection established
---> RETR /36342_2923873_mp.txt.gz
<--- 150 Opening BINARY mode data connection for /home/upload/upload_bin/affiliate_download/get_merchandiser_file.pl.
注意，多线程下载做我测试了另一台服务器上工作（一Apache的镜像站点进行测试），所以我敢打赌，这只是FTP服务器在这种情况下不受支持的功能。