FTP server behind pfsense

[sizeur]

Hello chpalmer,

I have enabled the secureshell now i can access the server with the Public IP from the LAN but not from the WAN :(

[sizeur]

I ama pretty sur i should add someting in "Firewall->NAT->1:1" but i don't know how to do it ;( i thought the configuration i have psoted would be enough :(

[doktornotor]

You do not need any 1:1 NAT to do a dead simple port forward. You are doing it wrong - use Firewall - NAT - Port Forward, not Firewall - Rules.

[johnpoz]

so your running your control channel for ftp on 22??  SSH or sftp??  WTF??  Makes ZERO sense to do that.. vsftp is not sftp server.. its a ftp server..

So which is it do you want to run ftp or ftps/ftpes (ftp using ssl) or do you wan to run sftp - which secure ftp using ssh.. Part of ssh, you do not need to install the ftp server vsftp to do that.

If sftp then simple as port forward 22.  If then its a bit more complicated - are you clients active or passive.  Are you going to do it over ssl then the common port is 990..

[sizeur]

Hello doktornotor & chpalmer,

Thank you for your feedback, i am going to focus on ftp instead of sftp which looks easier.

Thank for your help, i will get back to you when i will be available.

[johnpoz]

Not sure where u got idea ftp is easier? In ftp there are multiple ports involved control and data and data changes direction if active or passive much more involved in getting to work through nat firewall while sftp is 1 port

[sizeur]

Hi there again,

I have made progess regarding my FTP server but it still doesn'work. I have erased my old configuration and add this conf:
http://www.hostingpics.net/viewer.php?id=153586501.jpg

First rule "FTP passive port forward":
http://www.hostingpics.net/viewer.php?id=805386262.jpg

Second rule "FTP port forward 4101":
http://www.hostingpics.net/viewer.php?id=597823163.jpg

The FTP works normally in the lan when the followwng line is uncommented:
"MasqueradeAddress              x.x.x.x"  (where x.x.x.x is the public adress of my pfsense).

As soon as i uncomment it i cannot access my FTP anymore with his private IP adress from the LAN or with the public adress of my pfsense from the WAN, i have the same error message with winscp or filezilla client:
http://www.hostingpics.net/viewer.php?id=791995304.jpg

In the log of proftpd i see the messages:
"USER ftpuser: Login successful"
"FTP session opened"

In the log of winscp i see:
. 2017-03-07 13:15:22.133 Using FTP protocol.
. 2017-03-07 13:15:22.133 Doing startup conversation with host.

2017-03-07 13:15:22.196 PWD
< 2017-03-07 13:15:22.212 257 "/" est le répertoire courant
. 2017-03-07 13:15:22.212 Getting current directory name.
. 2017-03-07 13:15:22.383 Retrieving directory listing…
2017-03-07 13:15:22.383 TYPE A
< 2017-03-07 13:15:22.399 200 Type paramétré à A
2017-03-07 13:15:22.399 PASV
< 2017-03-07 13:15:22.415 227 Entering Passive Mode (x,x,x,x,234,144). (NOTE: x.x.x.x is the public addressof pfsense)
2017-03-07 13:15:22.415 MLSD
. 2017-03-07 13:15:22.415 Connecting to x.x.x.x:60048 ... (NOTE: x.x.x.x is the public addrress of pfsense)
. 2017-03-07 13:15:37.811 Timeout detected. (data connection)
. 2017-03-07 13:15:37.811 Could not retrieve directory listing

• 2017-03-07 13:15:37.982 (EFatal) Lost connection.

I have the same thing in filezilla client so i think the problem doesnt come from the ftp client

Here is my proftpd config:

Includes DSO modules

Include /etc/proftpd/modules.conf

Set off to disable IPv6 support which is annoying on IPv4 only boxes.

UseIPv6                        off

If set on you can experience a longer connection delay in many cases.

IdentLookups                    off

ServerName                      "Debian"
ServerType                      standalone
DeferWelcome                    off

MultilineRFC2228                on
DefaultServer                  on
ShowSymlinks                    on

TimeoutNoTransfer              600
TimeoutStalled                  600
TimeoutIdle                    1200

DisplayLogin                    welcome.msg
DisplayChdir                    .message true
ListOptions                    "-l"

DenyFilter                      *.*/

Use this to jail all users in their homes

DefaultRoot                    ~

Port 21 is the standard FTP port.

Port                            4101

In some cases you have to specify passive ports range to by-pass

firewall limitations. Ephemeral ports can be used for that, but

feel free to use a more narrow range.

PassivePorts                  60000 60050

If your host was NATted, this option is useful in order to

allow passive tranfers to work. You have to use your public

address and opening the passive ports used on your firewall as well.

MasqueradeAddress              x.x.x.x (the public IP adress of my pfsense)

This is useful for masquerading address with dynamic IPs:

refresh any configured MasqueradeAddress directives every 8 hours

<ifmodule mod_dynmasq.c=""># DynMasqRefresh 28800</ifmodule>

To prevent DoS attacks, set the maximum number of child processes

to 30.  If you need to allow more than 30 concurrent connections

at once, simply increase this value.  Note that this ONLY works

in standalone mode, in inetd mode you should use an inetd server

that allows you to limit maximum number of processes per service

(such as xinetd)

MaxInstances                    30

Set the user and group that the server normally runs at.

User                            proftpd
Group                          nogroup

Umask 022 is a good standard umask to prevent new files and dirs

(second parm) from being group and world writable.

Umask                          022  022

Normally, we want files to be overwriteable.

AllowOverwrite                  on

Uncomment this if you are using NIS or LDAP via NSS to retrieve passwords:

PersistentPasswd              off

This is required to use both PAM-based authentication and local passwords

AuthOrder                    mod_auth_pam.c* mod_auth_unix.c

Be warned: use of this directive impacts CPU average load!

Uncomment this if you like to see progress and transfer rate with ftpwho

in downloads. That is not needed for uploads rates.

UseSendFile                  off

TransferLog /var/log/proftpd/xferlog
SystemLog  /var/log/proftpd/proftpd.log

Logging onto /var/log/lastlog is enabled but set to off by default

#UseLastlog on

In order to keep log file dates consistent after chroot, use timezone info

from /etc/localtime.  If this is not set, and proftpd is configured to

chroot (e.g. DefaultRoot or <anonymous>), it will use the non-daylight

savings timezone regardless of whether DST is in effect.

#SetEnv TZ :/etc/localtime

<ifmodule mod_quotatab.c="">QuotaEngine off</ifmodule>

<ifmodule mod_ratio.c="">Ratios off</ifmodule>

Delay engine reduces impact of the so-called Timing Attack described in

http://www.securityfocus.com/bid/11430/discuss

It is on by default.

<ifmodule mod_delay.c="">DelayEngine on</ifmodule>

<ifmodule mod_ctrls.c="">ControlsEngine        off
ControlsMaxClients    2
ControlsLog          /var/log/proftpd/controls.log
ControlsInterval      5
ControlsSocket        /var/run/proftpd/proftpd.sock</ifmodule>

<ifmodule mod_ctrls_admin.c="">AdminControlsEngine off</ifmodule>

This is used for FTPS connections

#Include /etc/proftpd/tls.conf

Useful to keep VirtualHost/VirtualRoot directives separated

#Include /etc/proftpd/virtuals.conf

Include other custom configuration files

Include /etc/proftpd/conf.d/

<limit login="">DenyGroup !ftpuser</limit></anonymous>

[doktornotor]

Dude, when you passive ports range is  60000 60050 then kindly do NOT redirect 6000 - 6050. WTF.

[sizeur]

Hi doktornotor,

Thank you for you kind advice, indeed the port redirection was not correct, i modify it and its working now.

Thanks a lot WTF bro ;)

[doktornotor]

You are welcome.

P.S. FTP still sucks, definitely would use SCP/SFTP whenever it's a viable alternative. :P