This article will describe installing ProFTPD for FTP server.
Table of Contents
1 Install ProFTPD
Install ProFTPD package.
$ cat <<EOF | sudo debconf-set-selections proftpd-basic shared/proftpd/inetd_or_standalone select standalone EOF $ sudo apt install -y proftpd
Enable upload by local user. Enable read by anonymous user. Disable upload by anonymous user.
$ cat <<EOF | sudo tee /etc/proftpd/conf.d/anonymous.conf
<Anonymous ~ftp>
User ftp
Group nogroup
UserAlias anonymous ftp
DirFakeUser on ftp
DirFakeGroup on ftp
RequireValidShell off
<Directory *>
<Limit WRITE>
DenyAll
</Limit>
</Directory>
</Anonymous>
EOF
Enable and restart ProFTPD.
$ sudo systemctl enable proftpd $ sudo systemctl restart proftpd
Put file for anonymous user.
$ echo "anon" | sudo tee /srv/ftp/anon.txt
2 Access to ProFTPD
Access to ProFTPD with lftp.
$ sudo apt install -y lftp
Access to ProFTPD with specifying user. You can specify password with -u <username>,<password>. Home directory is displayed. You can access directory and files of FTP server with using user permission.
$ lftp -u hiroom2 ftp-server.hiroom2.com Password: lftp hiroom2@ftp-server.hiroom2.com:~> pwd ftp://hiroom2@ftp-server.hiroom2.com/%2Fhome/hiroom2 lftp hiroom2@ftp-server.hiroom2.com:~> ls / drwxr-xr-x 2 0 0 4096 Jul 29 07:12 bin drwxr-xr-x 4 0 0 1024 Aug 05 12:16 boot drwxrwxr-x 2 0 0 4096 Oct 09 2016 cdrom -rw------- 1 0 0 17711104 Jan 21 2017 core drwxr-xr-x 21 0 0 4020 Aug 06 01:22 dev drwxr-xr-x 133 0 0 12288 Aug 06 01:22 etc drwxr-xr-x 4 0 0 4096 Aug 06 01:22 home <snip>
Not specifying user uses anonymous user. The directory which is set to anon_root is displayed. Anonymous user cannot access upper directory because ProFTPD uses chroot.
$ lftp ftp-server.hiroom2.com lftp ftp-server.hiroom2.com:~> pwd ftp://ftp-server.hiroom2.com lftp ftp-server.hiroom2.com:~> ls / -rw-r--r-- 1 ftp ftp 5 Aug 8 07:43 anon.txt -rw-r--r-- 1 ftp ftp 170 Apr 5 2016 welcome.msg