Using JFileServer From The Command Line

From FileSys.Org Wiki

To run JFileServer from the command line you first need to download the latest JFileServer Kit zip file from here.

Unpack the JFileServer Kit zip file into a new folder. You should now have a folder with the following files and folders :-

 +- /testShare
     +- sharedFile.txt
 +- /lib
     +- bcprov-jdk5on-1.48.jar
     +- hazelcast-3.10.1.jar
     +- jfileserver-1.1.1.jar
     +- jna-5.1.0.jar
     +- jna-platform-5.1.0.jar
 +- /licencing
     +- BouncyCastle.txt
     +- Hazelcast.txt
     +- JNA.txt
 +- fileSrvConfig.xml
 +- fileSrvConfig-windows.xml
 +- port445.reg
 +- runsrv.bat

The included scripts, runsrv.bat for Windows and for Unix platforms, start JFileServer using the main class The JFileServer application requires a single command line parameter with the path to the XML configuration file.

Using JFileServer On Windows

On Windows it is recommended to use the Docker image to run JFileServer due to problems with the Windows OS already using the native SMB port 445. Details of how to use the JFileServer Docker images is available here.

Using JFileServer on linux, macOS, Unix

On linux, macOS and Unix systems the default JFileServer configuration runs the SMB server using native SMB but via the non-privileged port 1445, so that JFileServer can be run using a normal user account. To run JFileServer on port 445 would require running JFileServer using the root user.

In order for SMB clients to be able to connect to the JFileServer SMB server when it is running on a non-privileged port we need to use the firewall to forward network packets from the default port of 445, that the client will connect to, to port 1445 that the JFileServer SMB server is listening on.

Setting Up Port Forwarding On Linux

On linux kernel firewall rules are used to forward network packets. The firewall rules are configured using the iptables command.

To enable forwarding of network traffic from port 445 to port 1445 :-

  • Enable network forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
  • Load the iptable_nat module
modprobe iptable_nat
  • Configure the firewall forwarding rule
iptables -F
iptables -t nat -F
iptables -P INPUT ACCEPT
iptables -t nat -A PREROUTING -p tcp --dport 445 -j REDIRECT --to-ports 1445

Setting Up Port Forwarding On macOS

On more recent versions of macOS (10.10 onwards) the packet filter device is used to control forwarding of network packets. The packet filter is configured using the /etc/pf.conf file and associated files in the /etc/pf.anchors folder.

To enable forwarding of network traffic from port 445 to port 1445. :-

  • Edit the /etc/pf.conf file, add the lines in bold. You will need to run the editor using the sudo command.
# anchor point
scrub-anchor "*"
nat-anchor "*"
rdr-anchor "*"
rdr-anchor "org.filesys"
dummynet-anchor "*"
anchor "*"

load anchor "" from "/etc/pf.anchors/"
load anchor "org.filesys" from "/etc/pf.anchors/org.filesys"
  • Create the org.filesys anchor file in the /etc/pf.anchors folder, add the following line :-
rdr pass on en0 inet proto tcp from any to any port 445 -> port 1445
  • Enable the port 445 forwarding rules using :-
sudo pfctl -e -f /etc/pf.conf -v

Running JFileServer

Using a command line terminal or shell set your current working directory as the JFileServer directory.

There is a default JFileServer configuration file that will share the testShare folder, which contains a single text file. For details on configuring JFileServer see here.

To start JFileServer use the script file :-


The default JFileServer configuration will output debug logging to the console, on startup of the server you should see the following :-

JFileServer starting, enter 'x' to shutdown server, 'r' to restart server ...
Starting server SMB ...
[SMB] SMB Server JFILESRV starting
[SMB] Version 1.0.0, Java VM 25.152-b16, OS Mac OS X, version 10.14.2
[SMB] Using authenticator org.filesys.server.auth.EnterpriseSMBAuthenticator, mode=USER
[SMB] Server timezone offset = 0hrs
[SMB] Dialects enabled = [Core,CorePlus,DOS LANMAN 1.0,LANMAN1.0,DOS LANMAN 2.1,LM1.2X002,LANMAN2.1,NT LM 0.12]
[SMB] Shares:
[SMB]  [JFILESHARE,DISK,,[./testShare]] [./testShare]
[SMB] Added NTServer flag to host announcement
[SMB] Binding TCP-SMB session handler to address : ALL
[SMB] Binding NetBIOS session handler to address : ALL
[SMB] Request handler SMBRequestHandler_1 waiting for session ...
[SMB] Listening for connections on [SMB,TCP-SMB,ALL:1445]
[SMB] Waiting for new connection ...

To stop the running JFileServer enter x into the console and hit <Return>, the file server should shutdown within a few seconds, but may take up to a minute or so :-

Shutting server SMB ...
[SMB] SMB Server shutting down ...
[SMB] Packet pool at shutdown: [BufferLists: [Bufsize=256,Init=20,Max=100,Avail=20,Alloc=0,Stats=0/0/0] [Bufsize=4096,Init=20,Max=50,Avail=20,Alloc=0,Stats=0/0/0] [Bufsize=16384,Init=5,Max=50,Avail=5,Alloc=0,Stats=0/0/0]  [Bufsize=66000,Init=5,Max=50,Avail=5,Alloc=0,Stats=0/0/0] ]
Shutting server NetBIOS ...
[SMB] Closed session handler [SMB,TCP-SMB,ALL:1445]
[SMB] Closed request handler, SMBRequestHandler_1
[SMB] Closed SMB request handler, SMBRequestHandler_1
NotifyChangeHandler thread exit