在Linux系统中，添加sftp用户是一项重要的操作，它能够为特定用户提供安全的文件传输服务。这不仅有助于提升系统的安全性，还能满足不同用户对于文件交互的需求。当我们需要在Linux环境下添加sftp用户时，首先要明确添加的目的和需求，是为了方便团队成员间的文件共享，还是为了给外部合作伙伴提供有限的文件访问权限等。
接下来，我们可以通过一系列的步骤来完成sftp用户的添加。要确保系统已经安装了相关的软件包，比如vsftpd等。如果尚未安装，可以使用系统自带的包管理器进行安装。例如，在Debian或Ubuntu系统中，可以使用命令“sudo apt-get install vsftpd”来安装vsftpd。
创建新的用户账户是添加sftp用户的关键步骤之一。我们可以使用“useradd”命令来创建新用户。比如，要创建一个名为“sftpuser”的用户，可以执行“sudo useradd -m sftpuser”。这里的“-m”选项表示同时创建用户的主目录。为了保障账户的安全性，创建用户后最好为其设置一个强密码。可以使用“passwd”命令来设置密码，如“sudo passwd sftpuser”，然后按照提示输入新密码即可。
配置sftp服务也是非常重要的环节。我们需要对相关的配置文件进行修改。对于vsftpd，其主要配置文件通常位于“/etc/vsftpd.conf”。我们要确保配置文件中允许sftp连接的相关参数正确设置。例如，找到“# Subdirectory listing style.
# Default is a list - view.
# If you use pattern - based globs (e.g.,ls - l */*.gif),
# then you must include the "glob" option.
#
# Available options:
# off - disable all forms of directory listings
# wu - wu style
# inode - inode - based directories
# glob - allow globs
# list - list - view style
# algx - new ASCIIfile listing style
#
# default_listing_style = wu - wu
#
# If you want to change the name of the "." and ".." pseudo - files,
# you can do so here.
#
# dot_user = ftp
# dot_group = ftp
#
# If you want to change the name of the current directory
# pseudo - file, you can do so here.
#
# current_dir = CURRENT_DIRECTORY
#
# If you want to change the name of the parent directory
# pseudo - file, you can do so here.
#
# parent_dir = PARENT_DIRECTORY
#
# If you want to change the name of the incoming file
# pseudo - file, you can do so here.
#
# incoming_file = INCOMING_FILE
#
# If you want to change the name of the outgoing file
# pseudo - file, you can do so here.
#
# outgoing_file = OUTGOING_FILE
#
# If you want to change the name of the error file
# pseudo - file, you can do so here.
#
# error_file = ERROR_FILE
#
# If you want to change the name of the message file
# pseudo - file, you can do so here.
#
# message_file = MESSAGE_FILE
#
# If you want to change the name of the welcome file
# pseudo - file, you can do so here.
#
# welcome_file = WELCOME_FILE
#
# If you want to change the name of the login file
# pseudo - file, you can do so here.
#
# login_file = LOGIN_FILE
#
# If you want to change the name of the logout file
# pseudo - file, you can do so here.
#
# logout_file = LOGOUT_FILE
#
# If you want to change the name of the transfer file
# pseudo - file, you can do so here.
#
# transfer_file = TRANSFER_FILE
#
# If you want to change the name of the success file
# pseudo - file, you can do so here.
#
# success_file = SUCCESS_FILE
#
# If you want to change the name of the failure file
# pseudo - file, you can do so here.
#
# failure_file = FAILURE_FILE
#
# If you want to change the name of the aborted file
# pseudo - file, you can do so here.
#
# aborted_file = ABORTED_FILE
#
# If you want to change the name of the paused file
# pseudo - file, you can do so here.
#
# paused_file = PAUSED_FILE
#
# If you want to change the name of the resuming file
# pseudo - file, you can do so here.
#
# resuming_file = RESUMING_FILE
#
# If you want to change the name of the restarting file
# pseudo - file, you can do so here.
#
# restarting_file = RESTARTING_FILE
#
# If you want to change the name of the aborted file
# pseudo - file, you can do so here.
#
# aborted_file = ABORTED_FILE
#
# If you want to change the name of the paused file
# pseudo - file, you can do so here.
#
# paused_file = PAUSED_FILE
#
# If you want to change the name of the resuming file
# pseudo - file, you can do so here.
#
# resuming_file = RESUMING_FILE
#
# If you want to change the name of the restarting file
# pseudo - file, you can do so here.
#
# restarting_file = RESTARTING_FILE
#
# If you want to change the name of the connection file
# pseudo - file, you can do so here.
#
# connection_file = CONNECTION_FILE
#
# If you want to change the name of the disconnect file
# pseudo - file, you can do so here.
#
# disconnect_file = DISCONNECT_FILE
#
# If you want to change the name of the transfer - complete file
# pseudo - file, you can do so here.
#
# transfer_complete_file = TRANSFER_COMPLETE_FILE
#
# If you want to change the name of the transfer - error file
# pseudo - file, you can do so here.
#
# transfer_error_file = TRANSFER_ERROR_FILE
#
# If you want to change the name of the transfer - pause file
# pseudo - file, you can do so here.
#
# transfer_pause_file = TRANSFER_PAUSE_FILE
#
# If you want to change the name of the transfer - resume file
# pseudo - file, you can do so here.
#
# transfer_resume_file = TRANSFER_RESUME_FILE
#
# If you want to change the name of the transfer - restart file
# pseudo - file, you can do so here.
#
# transfer_restart_file = TRANSFER_RESTART_FILE
#
# If you want to change the name of the transfer - cancel file
# pseudo - file, you can do so here.
#
# transfer_cancel_file = TRANSFER_CANCEL_FILE
#
# If you want to change the name of the transfer - stop file
# pseudo - file, you can do so here.
#
# transfer_stop_file = TRANSFER_STOP_FILE
#
# If you want to change the name of the transfer - abort file
# pseudo - file, you can do so here.
#
# transfer_abort_file = TRANSFER_ABORT_FILE
#
# If you want to change the name of the transfer - complete - error file
# pseudo - file, you can do so here.
#
# transfer_complete_error_file = TRANSFER_COMPLETE_ERROR_FILE
#
# If you want to change the name of the transfer - complete - success file
# pseudo - file, you can do so here.
#
# transfer_complete_success_file = TRANSFER_COMPLETE_SUCCESS_FILE
#
# If you want to change the name of the transfer - error - success file
# pseudo - file, you can do so here.
#
# transfer_error_success_file = TRANSFER_ERROR_SUCCESS_FILE
#
# If you want to change the name of the transfer - error - failure file
# pseudo - file, you can do so here.
#
# transfer_error_failure_file = TRANSFER_ERROR_FAILURE_FILE
#
# If you want to change the name of the transfer - pause - success file
# pseudo - file, you can do so here.
#
# transfer_pause_success_file = TRANSFER_PAUSE_SUCCESS_FILE
#
# If you want to change the name of the transfer - pause - failure file
# pseudo - file, you can do so here.
#
# transfer_pause_failure_file = TRANSFER_PAUSE_FAILURE_FILE
#
# If you want to change the name of the transfer - resume - success file
# pseudo - file, you can do so here.
#
# transfer_resume_success_file = TRANSFER_RESUME_SUCCESS_FILE
#
# If you want to change the name of the transfer - resume - failure file
# pseudo - file, you can do so here.
#
# transfer_resume_failure_file = TRANSFER_RESUME_FAILURE_FILE
#
# If you want to change the name of the transfer - restart - success file
# pseudo - file, you can do so here.
#
# transfer_restart_success_file = TRANSFER_RESTART_SUCCESS_FILE
#
# If you want to change the name of the transfer - restart - failure file
# pseudo - file, you can do so here.
#
# transfer_restart_failure_file = TRANSFER_RESTART_FAILURE_FILE
#
# If you want to change the name of the transfer - cancel - success file
# pseudo - file, you can do so here.
#
# transfer_cancel_success_file = TRANSFER_CANCEL_SUCCESS_FILE
#
# If you want to change the name of the transfer - cancel - failure file
# pseudo - file, you can do so here.
#
# transfer_cancel_failure_file = TRANSFER_CANCEL_FAILURE_FILE
#
# If you want to change the name of the transfer - stop - success file
# pseudo - file, you can do so here.
#
# transfer_stop_success_file = TRANSFER_STOP_SUCCESS_FILE
#
# If you want to change the name of the transfer - stop - failure file
# pseudo - file, you can do so here.
#
# transfer_stop_failure_file = TRANSFER_STOP_FAILURE_FILE
#
# If you want to change the name of the transfer - abort - success file
# pseudo - file, you can do so here.
#
# transfer_abort_success_file = TRANSFER_ABORT_SUCCESS_FILE
#
# If you want to change the name of the transfer - abort - failure file
# pseudo - file, you can do so here.
#
# transfer_abort_failure_file = TRANSFER_ABORT_FAILURE_FILE
#
# If you want to change the name of the transfer - complete - error - success file
# pseudo - file, you can do so here.
#
# transfer_complete_error_success_file = TRANSFER_COMPLETE_ERROR_SUCCESS_FILE
#
# If you want to change the name of the transfer - complete - error - failure file
# pseudo - file, you can do so here.
#
# transfer_complete_error_failure_file = TRANSFER_COMPLETE_ERROR_FAILURE_FILE
#
# If you want to change the name of the transfer - error - success - failure file
# pseudo - file, you can do so here.
#
# transfer_error_success_failure_file = TRANSFER_ERROR_SUCCESS_FAILURE_FILE
#
# If you want to change the name of the transfer - pause - success - failure file
# pseudo - file, you can do so here.
#
# transfer_pause_success_failure_file = TRANSFER_PAUSE_SUCCESS_FAILURE_FILE
#
# If you want to change the name of the transfer - resume - success - failure file
# pseudo - file, you can do so here.
#
# transfer_resume_success_failure_file = TRANSFER_RESUME_SUCCESS_FAILURE_FILE
#
# If you want to change the name of the transfer - restart - success - failure file
# pseudo - file, you can do so here.
#
# transfer_restart_success_failure_file = TRANSFER_RESTART_SUCCESS_FAILURE_FILE
#
# If you want to change the name of the transfer - cancel - success - failure file
# pseudo - file, you can do so here.
#
# transfer_cancel_success_failure_file = TRANSFER_CANCEL_SUCCESS_FAILURE_FILE
#
# If you want to change the name of the transfer - stop - success - failure file
# pseudo - file, you can do so here.
#
# transfer_stop_success_failure_file = TRANSFER_STOP_SUCCESS_FAILURE_FILE
#
# If you want to change the name of the transfer - abort - success - failure file
# pseudo - file, you can do so here.
#
# transfer_abort_success_failure_file = TRANSFER_ABORT_SUCCESS_FAILURE_FILE
#
# If you want to change the name of the transfer - complete - error - success - failure file
# pseudo - file, you can do so here.
#
# transfer_complete_error_success_failure_file = TRANSFER_COMPLETE_ERROR_SUCCESS_FAILURE_FILE
#
# If you want to change the name of the transfer - error - success - failure - complete file
# pseudo - file, you can do so here.
#
# transfer_error_success_failure_complete_file = TRANSFER_ERROR_SUCCESS_FAILURE_COMPLETE_FILE
#
# If you want to change the name of the transfer - pause - success - failure - complete file
# pseudo - file, you can do so here.
#
# transfer_pause_success_failure_complete_file = TRANSFER_PAUSE_SUCCESS_FAILURE_COMPLETE_FILE
#
# If you want to change the name of the transfer - resume - success - failure - complete file
# pseudo - file, you can do so here.
#
# transfer_resume_success_failure_complete_file = TRANSFER_RESUME_SUCCESS_FAILURE_COMPLETE_FILE
#
# If you want to change the name of the transfer - restart - success - failure - complete file
# pseudo - file, you can do so here.
#
# transfer_restart_success_failure_complete_file = TRANSFER_RESTART_SUCCESS_FAILURE_COMPLETE_FILE
#
# If you want to change the name of the transfer - cancel - success - failure - complete file
# pseudo - file, you can do so here.
#
# transfer_cancel_success_failure_complete_file = TRANSFER_CANCEL_SUCCESS_FAILURE_COMPLETE_FILE
#
# If you want to change the name of the transfer - stop - success - failure - complete file
# pseudo - file, you can do so here.
#
# transfer_stop_success_failure_complete_file = TRANSFER_STOP_SUCCESS_FAILURE_COMPLETE_FILE
#
# If you want to change the name of the transfer - abort - success - failure - complete file
# pseudo - file, you can do so here.
#
# transfer_abort_success_failure_complete_file = TRANSFER_ABORT_SUCCESS_FAILURE_COMPLETE_FILE
#
# If you want to change the name of the transfer - complete - error - success - failure - complete file
# pseudo - file, you can do so here.
#
# transfer_complete_error_success_failure_complete_file = TRANSFER_COMPLETE_ERROR_SUCCESS_FAILURE_COMPLETE_FILE
#
# If you want to change the name of the transfer - error - success - failure - complete - error file
# pseudo - file, you can do so here.
#
# transfer_error_success_failure_complete_error_file = TRANSFER_ERROR_SUCCESS_FAILURE_COMPLETE_ERROR_FILE
#
# If you want to change the name of the transfer - error - success - failure - complete - success file
# pseudo - file, you can do so here.
#
# transfer_error_success_failure_complete_success_file = TRANSFER_ERROR_SUCCESS_FAILURE_COMPLETE_SUCCESS_FILE
#
# If you want to change the name of the transfer - error - success - failure - complete - failure file
# pseudo - file, you can do so here.
#
# transfer_error_success_failure_complete_failure_file = TRANSFER_ERROR_SUCCESS_FAILURE_COMPLETE_FAILURE_FILE
#
# If you want to change the name of the transfer - pause - success - failure - complete - error file
# pseudo - file, you can do so here.
#
# transfer_pause_success_failure_complete_error_file = TRANSFER_PAUSE_SUCCESS_FAILURE_COMPLETE_ERROR_FILE
#
# If you want to change the name of the transfer - pause - success - failure - complete - success file
# pseudo - file, you can do so here.
#
# transfer_pause_success_failure_complete_success_file = TRANSFER_PAUSE_SUCCESS_FAILURE_COMPLETE_SUCCESS_FILE
#
# If you want to change the name of the transfer - pause - success - failure - complete - failure file
# pseudo - file, you can do so here.
#
# transfer_pause_success_failure_complete_failure_file = TRANSFER_PAUSE_SUCCESS_FAILURE_COMPLETE_FAILURE_FILE
#
# If you want to change the name of the transfer - resume - success - failure - complete - error file
# pseudo - file, you can do so here.
#
# transfer_resume_success_failure_complete_error_file = TRANSFER_RESUME_SUCCESS_FAILURE_COMPLETE_ERROR_FILE
#
# If you want to change the name of the transfer - resume - success - failure - complete - success file
# pseudo - file, you can do so here.
#
# transfer_resume_success_failure_complete_success_file = TRANSFER_RESUME_SUCCESS_FAILURE_COMPLETE_SUCCESS_FILE
#
# If you want to change the name of the transfer - resume - success - failure - complete - failure file
# pseudo - file, you can do so here.
#
# transfer_resume_success_failure_complete_failure_file = TRANSFER_RESUME_SUCCESS_FAILURE_COMPLETE_FAILURE_FILE
#
# If you want to change the name of the transfer - restart - success - failure - complete - error file
# pseudo - file, you can do so here.
#
# transfer_restart_success_failure_complete_error_file = TRANSFER_RESTART_SUCCESS_FAILURE_COMPLETE_ERROR_FILE
#
# If you want to change the name of the transfer - restart - success - failure - complete - success file
# pseudo
