Version 1.0
Author: Andy Ru <webtechy [at] gmail [dot] com>

This tutorial explains how to install Hamachi on a Fedora 9 server. Hamachi is a VPN service that easily sets up in 10 minutes, and enables secure remote access to your business network, anywhere there’s an Internet connection. It works with your existing firewall, and requires no additional configuration. Hamachi is the first networking application to deliver an unprecedented level of direct peer-to-peer connectivity. It is simple, secure, and cost-effective.

1 Download Hamachi

Hamachi can be downloaded from the main website here:

https://secure.logmein.com/products/hamachi/download.asp

Download the 0.9.9.9-20 Linux version with the following filename:

hamachi-0.9.9.9-20-lnx.tar.gz

Or skip all that and do a wget on the file from the link here:

wget http://files.hamachi.cc/linux/hamachi-0.9.9.9-20-lnx.tar.gz

Ungzip and extract the tar file to a folder and then cd into the directory:

tar-xvf hamachi-0.9.9.9-20-lnx.tar.gz
cd hamachi-0.9.9.9-20-lnx

Make sure you are able to sudo or su to root for the next step.

2 Install and recompile tuncfg

In order to run hamachi you will need to fix the path for ifconfig in most Fedora-based distributions.

cd tuncfg

(I took this information from a post by feistyfeline on linuxquestions.org here is a link to the original post http://www.linuxquestions.org/questions/linux-software-2/cant-log-in-with-hamachi.-409344/)

Rename the original tuncfg file in that folder (only if you need to):

mv tuncfg tuncfg.backup

Use your choice of text editor to edit the tuncfg.c file. Search for the piece of code that has ifconfig. There is only one instance of that.

Change:

"ifconfig %s %u.%u.%u.%u ", ctx[i].dev,

TO

"/sbin/ifconfig %s %u.%u.%u.%u ", ctx[i].dev,

Then:

gcc tuncfg.c -o tuncfg

That recompiles tuncfg to incorporate the changes you made. Next, if you had already started tuncfg, kill all instances of tuncfg with:

killall tuncfg

Next, run the following as root to install the new tuncfg:

make install
/sbin/tuncfg

Finally, run "hamachi start" as a regular user and you may proceed as indicated in the README file.

3 Install & start Hamachi

Per the README file, install hamachi as a regular user by running hamachi-init:

hamachi-init

Initializing Hamachi configuration (/home/aru/.hamachi). Please wait ..

generating 2048-bit RSA keypair .. ok
making /home/aru/.hamachi directory .. ok
saving /home/aru/.hamachi/client.pub .. ok

hamachi start

Starting Hamachi hamachi-lnx-0.9.9.9-20 .. ok

4 Configure Hamachi

Once you are able to start Hamachi, you can then proceed to configure it to join a network:

# join "networkname" "networkpassword"

If no command is specified, hamachi displays its status including version, pid, online status and the nickname. Or you can get a list of commands by typing:

hamachi help

Once you’ve created or joined a network you can set up hamachi to start on boot by editing the rc.local file:

sudo vi /etc/rc.local

  /sbin/tuncfg    su - user -c "hamachi start"

Or you can set up Hamachi as a service by using a init.d script like the one described in the blog here by cannin: http://idahospuds.blogspot.com/2006/03/scitech-hamachi-as-service-in-fedora.html

#!/bin/bash

#

# hamachi         This shell script takes care of starting and stopping

#                 hamachi.

#

# chkconfig: 345 99 9

# description: hamachi is a zero-configuration VPN

# Source function library.

. /etc/rc.d/init.d/functions

# Source networking configuration.

. /etc/sysconfig/network

# Check that networking is up.

[ "${NETWORKING}" = "no" ] && exit 0

[ -f /etc/hamachi/client.pri ]  exit 0

[ -f /etc/hamachi/client.pub ]  exit 0

[ -f /usr/bin/hamachi ]  exit 0

# See how we were called.

case "$1" in

start)

 echo "Starting hamachi..."

 /sbin/tuncfg

 /usr/bin/hamachi -c /etc/hamachi start

 ;;

stop)

 echo "Stopping hamachi..."

 killall tuncfg

 /usr/bin/hamachi -c /etc/hamachi stop

 ;;

restart)

 stop

 sleep 1

 start

 ;;

  *)

 echo "Usage: hamachi {startstoprestart}\n"

 exit 1

esac

exit 0

(I actually just went with the rc.local commands as I found that as long as I leave my server running most of the time my need for a service isn’t all that great. I just needed it to startup when there is a power outage.)

Make sure to verify that both tuncfg and hamachi are running afterwards by doing a ps:

ps -ef | grep tuncfg
ps -ef | grep hamachi

Now you can access your server from anywhere you are able to install a hamachi client from. If you want a GUI interface, you can also look into installing one from the links below.

5 Links

• Hamachi: http://www.hamachi.cc
• QHamachi: http://quamachi.sourceforge.net/Quamachi/
• hamachi-gui: hamachi-gui.sourceforge.net/
• YAHG (Yet Another Hamachi GUI): http://php-gtk.eu/apps/yahg/
• Fedora: http://fedoraproject.org

Frank Ableson (fableson@msiservices.com), Software designer

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