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Full Discussion: Linux as FTP & Mail server
Operating Systems Linux Linux as FTP & Mail server Post 39903 by OllieTech on Wednesday 3rd of September 2003 07:51:15 PM
Old 09-03-2003
Quote:
Originally posted by Synbios
If you want to keep the FTP service internal, then get a router and don't forward the port you are using (probably 21). If you do this only the computers behind the router (your LAN) will be able to access this FTP server. You can use the LAN IP address of the server to access it.
But a more cost effective and secure way of having a local FTP server is to install a second NIC in to your systems and run everything through a switch using a non-routable IP format. That way global bandwidth utilization is not taken up and there is no traffic going out in the direction of the global Internet.

Just my 2 cents...
 

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LEARN ABOUT CENTOS

ftpusers

FTPUSERS(5)						     Linux Programmer's Manual						       FTPUSERS(5)

NAME

       ftpusers - list of users that may not log in via the FTP daemon

DESCRIPTION

       The  text  file	ftpusers  contains a list of users that may not log in using the File Transfer Protocol (FTP) server daemon.  This file is
       used not merely for system administration purposes but for improving security within a TCP/IP networked	environment.   It  will  typically
       contain	a  list  of  the  users that either have no business using ftp or have too many privileges to be allowed to log in through the FTP
       server daemon.  Such users usually include root, daemon, bin, uucp, and news.  If your FTP server daemon doesn't use ftpusers  then  it	is
       suggested  that	you  read  its	documentation  to find out how to block access for certain users.  Washington University FTP server Daemon
       (wuftpd) and Professional FTP Daemon (proftpd) are known to make use of ftpusers.

   Format
       The format of ftpusers is very simple.  There is one account name (or username) per line.  Lines starting with a # are ignored.

FILES

       /etc/ftpusers

SEE ALSO

       passwd(5), proftpd(8), wuftpd(8)

COLOPHON

       This page is part of release 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2000-08-27							       FTPUSERS(5)
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