This document provides instructions for running multiple instances of the Transmission torrent client on a single Linux server. It involves duplicating Transmission's configuration files, editing the copies to configure unique ports, passwords, and download directories for each instance. The instances are started independently and can then be accessed through separate URLs on different ports. Running multiple Transmissions allows sharing usage of the server or maintaining privacy for multiple users.

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How to Run Multiple Instances of Transmission Daemon Server © Mencatat Info 2014
How to Run Multiple Instances of Transmission Daemon in Linux Debian or Ubuntu
By : Gusti Tammam ( tammam@mencatat.info )
Translation by Google Translate | Please contribute for better translation, send email to translate@mencatat.info
Introduction
ransmission is the most popular torrent client used by linux vps users. Apart from the view that a simple, easy and elegant, most users use transmission because the installation is not so complicated.
Tranmission is equipped with a built-in web server with the default port is 9091. Through that port We can access the web interface of the transmission through our favorite web browser. Usually the structures that we need to enter the URL in the web browser when they want to access the transmission is as follows: {server ip or domain: port transmission}.
And the picture below shows what the web interface of the transmission look like.
T
Example :
 Our server has an IP 123.45.678.9 and its domain is www.doma.in
 And transmission running on port 9091
So we can access transmission with enter this URL below to web browser :
 http://123.45.678.9:9091
 http://www.doma.in:9091

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How to Run Multiple Instances of Transmission Daemon Server © Mencatat Info 2014
In general, in a server, there is only one transmission is running. But in fact you can also run multiple transmissions simultaneously in a single server. Here is the reason why people need to run multiple transmissions at the same time in a single server:
 Want to share a server with friends or relatives
 Want to sell leechbox
 Need privacy when using transmission for multiple user
 Etc.
In this article, we discuss the steps to run the multi-transmission in a single server with the following steps:
1. Install transmission
2. Make sure the transmission is turned off
3. Perform duplicate configuration files
4. Perform configuration on each file that was copied
5. Turning on all of transmissions
6. Done

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How to Run Multiple Instances of Transmission Daemon Server © Mencatat Info 2014
Explanation
Installation of Transmission Daemon
I assume transmission was not installed in your server , therefore please do the installation as follows:
# add-apt-repository ppa:transmissionbt/ppa
# apt-get update
# apt-get install transmission-daemon
Make Sure The Transmission is Turned Off
To check the status of the transmission-daemon, please run the following command:
# /etc/init.d/transmission-daemon status If output is : [ ok ] transmission-daemon is running. That means transmission is active. So, you need to turn it off first with the following command :
# /etc/init.d/transmission-daemon stop So it would appear the output [ ok ] Stopping bittorrent daemon: transmission- daemon. That means transmission-daemon would be turned off. And when you check the status back, the output message is [FAIL] transmission-daemon is not running ... failed!
Duplicate the Configuration File
To run more than one transmission, we need to duplicate original transmission configuration files. The files will be copied are:
 /usr/bin/transmission-daemon
 /etc/init.d/transmission-daemon
 /var/lib/transmission-daemon
 /etc/transmission-daemon
 /etc/default/transmission-daemon
The command below will duplicate the files from the transmission-daemon to the transmission-daemon2
# cp /usr/bin/transmission-daemon /usr/bin/transmission-daemon2
# cp /etc/init.d/transmission-daemon /etc/init.d/transmission-daemon2
# cp -a /var/lib/transmission-daemon /var/lib/transmission-daemon2
# cp -a /etc/transmission-daemon /etc/transmission-daemon2
# cp /etc/default/transmission-daemon /etc/default/transmission-daemon2
# chmod –R 777 /usr/bin/transmission-daemon2
# chmod –R 777 /etc/init.d/transmission-daemon2
# chmod –R 777 /var/lib/transmission-daemon2
# chmod –R 777 /etc/transmission-daemon2
# chmod –R 777 /etc/default/transmission-daemon2

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How to Run Multiple Instances of Transmission Daemon Server © Mencatat Info 2014
Then create a symbolic link with the following command:
# ln -sf /etc/transmission-daemon2/settings.json /var/lib/transmission-daemon2/info/settings.json
Perform configuration on Duplicate Files in Earlier
Edit file /etc/init.d/transmission-daemon2 :
Find this word
NAME = transmission-daemon
Change into this
NAME = transmission-daemon2
Edit file /etc/transmission-daemon2/settings.json :
To change the download directory, Find this word
"download-dir": "/var/lib/transmission-daemon/downloads"
Change into this
"download-dir": "path to the download directory for transmission-daemon2"
To change the peer-port, Find this word
peer-port ": 51413,
Increase the value of peer-port 1 level (peer-port should not be the same for each transmission, within a single server)
peer-port ": 51414,
To change the password, Find this word
"rpc-password": "{745678907320987632076238d58a4510eda06ff7sCZfdZ",
Change into this
"rpc-password": "desire-new-password",
To change the username, Find this word
"rpc-username": "transmission",
Change into this
"rpc-username": "desire-new-user",
To change the port transmission, Find this word
rpc-port ": 9091,
Increase the value of rpc-port 1 level (rpc-port should not be the same for each transmission, within a single server)
rpc-port ": 9092,
To open access to all IP, Find this word
"rpc-whitelist-enabled": true,
Change into this
"rpc-whitelist-enabled": false,
Edit file /etc/default/transmission-daemon2 :
Find this word
CONFIG_DIR="/var/lib/transmission-daemon/info"
Change into this
CONFIG_DIR="/var/lib/transmission-daemon2/info"

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How to Run Multiple Instances of Transmission Daemon Server © Mencatat Info 2014
Running Up All Transmission
Before re-run all transmission, we need to add a rule to the transmission-daemon2 that we just created earlier.
The command below will make transmission-daemon2 automcally run when server starting up :
# update-rc.d transmission-daemon2 defaults
Now do the following command to activate all transmission-daemon:
/etc/init.d/transmission-daemon start
/etc/init.d/transmission-daemon2 start
Done
Finally reached the final stage, ie access via a browser:
To access the transmission 1, please go to the URL: http: // ip-or-domain-server: 9091
To access the transmission 2, please go to the URL: http: // ip-or-domain-server: 9092
Conclusion
 In principle to run multiple transmissions simultaneously is duplicating the configuration file, just do not get there the same configuration or overlapping. So you need to do the editing on some configuration files after menduplikatnya.
 By doing the above methods, you can run a lot of transmission in the server as much as you want, just do not forget to pay attention to the ability of the server. Was it able to run a lot of transmission.

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How to Run Multiple Instances of Transmission Daemon Server © Mencatat Info 2014
References
 http://ubuntuforums.org/showthread.php?t=1605906
General Discussion and Questions
Please send an email to tammam@mencatat.info