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POUsing Captive Network Assistant on MacOSX to connect to VPN
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copied!<p>Apple introduced a new "feature" with MacOSX Lion (10.7) which is called Captive Network Assistant. In my opinion its just a useless and annoying feature. It's aim is to help you login to networks which require authentication (see: <a href="http://en.wikipedia.org/wiki/Captive_portal" rel="noreferrer">Captive Portal</a>), but the feature doesn't store cookies or saves passwords.</p> <p>In my university we also use such a network which requires users to login. The login doesn't happen via browser but via VPN, which makes the Captive Network Assistant completely useless and annoying.</p> <p>So im posting a Guide here on how to replace this "feature" with something actually useful and i didn't want it to get lost and be useful to other people</p> <p><strong>#1.</strong> create a bash script with name "Captive Network Assistant", paste the following code inside and replace your file with the same at <em>/System/Library/CoreServices/Captive Network Assistant.app/Contents/MacOS/</em></p> <pre><code>#!/bin/bash scriptlocation="/System/Library/CoreServices/Captive Network Assistant.app/Contents/MacOS/vpn.scpt" osascript "$scriptlocation" </code></pre> <p><strong>#2.</strong> create an applescript with name "vpn.scpt", place it under the path mentioned in the bash-script and place the following code inside:</p> <pre><code>set wlanssid to do shell script "networksetup -getairportnetwork en1 | cut -c 24-" connectVPN(wlanssid) on connectVPN(SSID) tell application "System Events" tell current location of network preferences local VPNService if (SSID = "XYZXYZ") then --WLANNAME set VPNService to service "XYZXYZ-VPN" --VPNNAME set isConnected to connected of current configuration of VPNService if not isConnected then connect VPNService end if end if end tell end tell end connectVPN </code></pre> <p>This script will be executed everytime your computer connects to a "Captive Network" and if the SSID of the WLAN is called "XYZXYZ" it will start the VPN-Connection with name XYZXYZ-VPN</p> <p>The script can be modified to support multiple captive networks.</p> <p>Also its possible to add Growl-Notifications to the Script. My complete Script looks like this: <a href="http://pastebin.com/Rtp9EqQR" rel="noreferrer">http://pastebin.com/Rtp9EqQR</a></p>

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