Free method that works, with a jailbroken iPhone at least:
1) Install openSSH on your iPhone from cydia, or
apt-get, if you prefer the terminal.
2) Install python 2.7.x.
As of this writing the latest version is 2.7.6.
3) download libusbmuxd.
You can either do a
git clone or, if you don't have / want to get
the release from the 'releases' tab.
4) unpack it if you didn't take the
git clone route. If you downloaded the tarball,do
tar zxvf <tarball name>.tar.gz from a terminal. In windows, use 7-zip or download the .zip version of the tool.
6) The following step is platform-dependent:
If you run windows, you will have to manually type the path to your
python.exe program. If you chose the default location, it will install into
C:\Python27. So, in windows, go to your command prompt and type
C:\Python27\python.exe tcprelay.py -t 22:2222.
If you use Linux (like me), Cygwin in Windows, BSD/Unix, solaris, or basically any platform besides windows and DOS known to man, you will simply type
python2.7 tcprelay.py -t 22:2222.
Not quite done yet - You need a SSH client running! This, too, is platform-dependent.
Windows - PuTTY
In windows, cygwin makes this easy, but if you don't have cygwin already, PuTTY is a good option:
Set it up like this:
Be sure to set the login username to 'mobile'.
And, for a little extra speed (lower overhead from the encryption), change the encryption to 'arcfour'. Usually, I would not recommend this, but since you are pushing the encryption over a USB cable and not a network, security is less of a risk.
If you want, you can then save a profile for this, to avoid setting it all back up each time you have a problem. This is done in the 'session' section at the very top.
Linux/Unix/BSD/Solaris/OSX/HP-UX/whatever I'm still missing
You can run
ssh -D 8080 -p 2222 email@example.com
The default password for the
root accounts on the iphone should be
alpine. Once you are successfully logged in, you should see a
xterm-like window. type
passwd now, to change your password to something more secure. Also, type
su and use
alpine as your password to log in as
root and change the
root password as well. Then, type
exit to go back to your login as
8) You're nearly done now, I swear! It's less complex than it appears so far, if you actually do it yourself!
Now, you need to open your web browser of choice; I use firefox, so I will use it as an example. I have used chrome, but as I do not like it and do not currently have it installed, I cannot presently use it for an example. But you set it up as a SOCKS proxy, regardless of browser.
These screenshots were done with a forwarded X11, so the fonts are ugly, but pay it no mind.
First, go to the preferences window (
tools -> options or
edit -> preferences, depending on OS). Then, go to
Advanced -> Network -> Settings....
Use the following configuration for the browser.
Problems and Solutions
Yeah, this isn't really using the iphone as a modem.
Get over it; it works.
My app doesn't allow setting a SOCKS proxy.
I have had this problem with games like Minecraft. Here's some fixes.
For minecraft, I added a argument to
ssh. I regularly play on the nerd.nu reddit minecraft servers (reddit.com/r/mcpublic). Since minecraft 1.6, SSH tunneling and SOCKS proxies set as command line arguments haven't worked. You used to be able to add java parameters
-DSocksProxyHost=127.0.0.1 -DSocksProxyPort=8080 and it would work. Now, however, the solution isn't quite as nice, but it does work.
When you start
ssh, instead of
ssh -D 8080 -p 2222 firstname.lastname@example.org, do
ssh -D 8080 -L 127.0.0.1:25565:p.nerd.nu:25565 -p 2222 email@example.com.
Then, when you want to connect to the server, instead add the URL
127.0.0.1:25565 to your list of servers! The remote server will appear on 127.0.0.1/localhost thanks to the miracle of SSH tunneling!
For other programs/games, the same rule applies. If you can't set a SOCKS proxy and nothing else works, just add
-L 127.0.0.1:<port>:<remote URL to access>:<remote port>.
There is nothing forcing you to use the same port on
127.0.0.1 that you would normally, so I could have, for example, mapped
127.0.0.1:1025 and the game wouldn't care as long as I specified the port. Not all programs are so lenient, but it's useful to remember.
Also, remember: Nearly any program can use this. So while it's not as nice as having a simple modem or something, It definitely works. Note that if you lose connection to wi-fi, you will probably start eating into your cellular network's data access. If the cellular network does deep-level packet inspection, be prepared for a charge for enabling tethering. Just be careful, please :) If you have "TetherMe" from Cydia, or something like that, it might mask what you are doing. Also, sometimes if the iphone goes to sleep it will turn off wi-fi. Install
insomnia from cydia/apt to get around that.
Or, to prevent deep packet inspection, you can also SSH from your iphone into a PC at home for encryption, and then SSH into your iphone from your device that you are wired into.