ELTE is a great university but they don’t support Apple products well. If you are an ELTE student, use a Mac, and trying to access ELTE resources from home during the lockdown, this is the tutorial you need.

You have to have a Caesar or IIG username and password for this to work.

Step 1: install the Homebrew package manager from https://brew.sh/

• Click on Applications -> Utilities -> Terminal
• Copy the following line into the Terminal window (this is one single line):

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

• When it asks you for your password, enter your computer’s password.

Please note: this can take 10-20 minutes to complete.

Step 2: install the stunnel package using Homebrew

• in the same Terminal window, type the following line:

brew install stunnel

Step 3: put the ELTE stunnel.conf file in the stunnel directory

The following 7 lines are the configuration for stunnel. You need to save this into a file on your computer called /usr/local/etc/stunnel/stunnel.conf

foreground = yes
socket = l:TCP_NODELAY=1
socket = r:TCP_NODELAY=1
[proxys]
accept = 8080
connect = proxy.elte.hu:8443
client = yes

Step 4: Start up stunnel

brew services start stunnel

This will make sure that stunnel will always be running on your computer, even after rebooting.

Step 5: Configure your computer to go through ELTE for web browsing

• Go to Apple Icon -> System Preferences -> Network
• Click on the “Advanced” button in the bottom right corner
• Click on the “Proxies” tab on the top row
• Select “Web Proxy (HTTP)”
• Add 127.0.0.1 under Web Proxy Server
• Add 8080 next to the 127.0.0.1 after the colon symbol
• Enable the “Proxy server requires password” option
• Enter your Caesar/IIG username and password
• ALSO repeat this under “Secure Web Proxy (HTTPS)”

This is it! Your web browsers will start going through ELTE with all their traffic.

To test, start up a browser, and google the following phrase “what is my ip address”. If you did everything right, the IP address Google will report back will start with 157.181.

Step 6: Turn off the ELTE browser redirect when you don’t need it

The setup above will send all your web browsing through ELTE, including YouTube and Netflix traffic, so it will be slow for you and problematic for them. It’s better to turn it off when you don’t need it.

• Go to Apple Icon -> System Preferences -> Network
• Click on the “Advanced” button in the bottom right corner
• Click on the “Proxies” tab on the top row
• UNselect “Web Proxy (HTTP)”
• UNselect “Secure Web Proxy (HTTPS)”

That’s it, you are all set.

imre