Busybox

tftp - 錯誤程式碼 1:找不到文件

  • March 8, 2019

我需要正確的 tftp 語法來獲取和放置文件。我的最終目標是使用busybox tftp(這應該是第二個問題),但即使嘗試使用本地Ubuntu tftp客戶端進行測試也失敗了。

正如您在下面看到的,ftp沒有問題,只有tftp問題。這是回送 ip,所以不應該與 iptables 相關(同樣,ftp沒問題)。為了防止潛在的長路徑問題,我只使用主目錄進行測試。

xb@dnxb:/tmp$ grep anon_root /etc/vsftpd.conf
anon_root=/home/xiaobai/
xb@dnxb:/tmp$ cat /home/xiaobai/haha
7
xb@dnxb:/tmp$ ftp 127.0.0.1
Connected to 127.0.0.1.
220 (vsFTPd 3.0.3)
Name (127.0.0.1:xiaobai): anonymous
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> get haha
local: haha remote: haha
200 PORT command successful. Consider using PASV.
150 Opening BINARY mode data connection for haha (2 bytes).
226 Transfer complete.
2 bytes received in 0.00 secs (6.5541 kB/s)
ftp> 221 Goodbye.
xb@dnxb:/tmp$ tftp 127.0.0.1
tftp> get haha
Error code 1: File not found
tftp> get /home/xiaobai/haha
Error code 1: File not found
tftp> get /home/xiaobai/haha output
Error code 1: File not found
tftp> put /home/xiaobai/haha        
Error code 1: File not found
tftp> put haha
Error code 1: File not found
tftp> xb@dnxb:/tmp$ dpkg-query -W -f='${Description}\n\n${Homepage}\nMaintainer: ${Maintainer}\n\n' tftp
Trivial file transfer protocol client
Tftp is the user interface to the Internet TFTP (Trivial File Transfer
Protocol), which allows users to transfer files to and from a remote machine.
The remote host may be specified on the command line, in which case tftp uses
host as the default host for future transfers.

http://www.hcs.harvard.edu/~dholland/computers/netkit.html
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>

xb@dnxb:/tmp$

然後我按照這個答案

xb@dnxb:/tmp$ tftp -v 127.0.0.1 -c get haha
usage: tftp host-name [port]
tftp> xb@dnxb:/tmp$ 
xb@dnxb:/tmp$ tftp -v 127.0.0.1 -c get /home/xiaobai/haha
usage: tftp host-name [port]
tftp> xb@dnxb:/tmp$ 
xb@dnxb:/tmp$ tftp -v 127.0.0.1 -c put haha
usage: tftp host-name [port]
tftp> xb@dnxb:/tmp$ tftp -v 127.0.0.1 -c put /home/xiaobai/haha
usage: tftp host-name [port]
tftp> ^F
?Invalid command
tftp> xb@dnxb:/tmp$ 
xb@dnxb:/tmp$ 

還有這個答案(評論或不評論似乎沒有效果,我service vsftpd restart在編輯後做了):

xb@dnxb:/tmp$ grep server_args /etc/xinetd.conf 
# server_args = -c -s /tftpboot
xb@dnxb:/tmp$ 

如果有人可以回答有關具有不同選項的busybox tftp,那就更好了:

# busybox tftp                                    
BusyBox v1.22.1 bionic (2017-11-04 12:54 +0800) multi-call binary.

Usage: tftp [OPTIONS] HOST [PORT]

Transfer a file from/to tftp server

       -l FILE Local FILE
       -r FILE Remote FILE
       -g      Get file
       -p      Put file

tftp 通常僅限於 /tftpboot 目錄,我不希望它能夠從使用者主目錄中獲取某些內容。

還要檢查文件權限。IIRC(已經有一段時間了),因為 tftp 是未經身份驗證的文件,因此需要全球可讀。

引用自:https://unix.stackexchange.com/questions/505003