User Tools

Site Tools


auth:howto:linux:vpnclient

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
Next revisionBoth sides next revision
auth:howto:linux:vpnclient [2007/04/12 16:39] kohoferauth:howto:linux:vpnclient [2019/01/16 10:03] – external edit 127.0.0.1
Line 1: Line 1:
-===== VPN (Virtual Private Network) at the Free University of Bolzano/Bozen =====+====== VPN (Virtual Private Network) at the Free University of Bolzano/Bozen and EURAC ======
  
-==== Infos regarding the usage of VPN ====+===== Infos regarding the usage of VPN =====
  
-http://www.unibz.it/ict/vpn/index.html?LanguageID=EN+https://knowledge.scientificnet.org/workspace/#nd=ab7442f9-c4d0-4ffc-a4f7-1e0d84515cc9&ld=17f4d8ce-edff-4d42-ad33-d98e2cdebc35&ln=it
  
 +==== Instructions for MacOS X ====
  
-==== Instructions for Windows 98, ME, NT 4.0, 2000 and XP ==== +We recommend to download and install [[https://itunes.apple.com/en/app/cisco-anyconnect/id392790924?mt=8|Cisco AnyConnect]] from Apple Store for iOS and connect via Browser to https://vpn.scientificnet.org for Mac OSX
-http://www.unibz.it/ict/vpn/win/index.html?LanguageID=EN+
  
-===Instructions for MacOS X 10.2-10.4 ==== +=== Unsupported Instructions for MacOS X  and iOS use at own risk! ===
-http://www.unibz.it/ict/vpn/mac/index.html?LanguageID=EN+
  
-==== Instructions for Linux ====+Download, unpack (doubleclick), then doupleclick the unpacked file to install it:
  
-1. Download and install the kernel headers corresponding to the kernel in use. Some distributions name this package kernel-headers, others name it linux-headers:+{{:auth:howto:linux:vpn-scientificnet.org.networkconnect.zip|}}
  
-    # sudo apt-get install kernel-headers-X.X.XX-X-XXX +Under Network settings a new item should appear:
-or +
-    # sudo apt-get install linux-headers-X.X.XX-XXX+
  
-Substitute the notation X.X.XX with the actual version of your kernel. +  * VPN (IPSec) 
-You can get the version of your kernel by issuing the following command:+  * change username to your username 
 +  * click Connect and enter your password
  
-    # uname -a+=== Uninstalling if installation is corrupt in MacOSx ===
  
-A valid version number could be, for example, 2.6.12-9-386.+Uninstallation has to be done by running this command on terminal:
  
-2Download and install the vpnclient:+sudo /opt/cisco/vpn/bin/vpn_uninstall.sh
  
-Substitute the notation X Z with your university network's username and password:+Should the uninstallation or reinstallation be corrupt, run this command on terminal
  
-wget --no-check-certificate --http-user=X --http-password=Z  +sudo pkgutil --forget com.cisco.pkg.anyconnect.vpn
-https://pro.unibz.it/vpn/client/common/linux/vpnclient-linux-x86_64-4.8.00.0490-k9.tar.gz+
  
  
-3. Untar the source of vpnclient and install it. +=== Instructions for iOS 9 ===
-   Depending on the Linux Distribution you might need to install ''make'' and ''gcc-3.4'' +
-   apt-get install make gcc-3.4+
  
-    # tar xfz vpnclient-linux-4.7.00.0640-k9.tar.gz +  Press Settings 
-      +  - Choose General 
-    # cd vpnclient +  - Nearly at the end, click VPN 
-     +  Next click: Add VPN Configuration... 
-    # ./vpn_install+    - **Type:** IPSec 
 +    - **Description:** VPN Scientificnet 
 +    **Server:** vpn.scientificnet.org 
 +    - **Account:** <your-unibz-username> 
 +    - **Password:** <your-unibz-password> or leave empty to ask every time! 
 +    - **Group Name:** Unibz 
 +    - **Secret:** <file> 
 +NrW2z9sj8g3kjJrzXxJwRPbIRNInWakL 
 +</file> 
 +  - Press Done in upper right corner of window 
 +  - Status: Slide Button to the right to connect 
 +  - Enter Password if not already entered above
  
-You will get some messages and you will be requested to answer to some questions:+===== Instructions for Linux vpnc Client (recommended) =====
  
-    Directory where binaries will be installed [/usr/local/bin] +1Install vpnc
-     +
-    Automatically start the VPN service at boot time [yes] +
-     +
-    Directory containing linux kernel source code [/lib/modules/X.X.XX-X-XXX/build]+
  
-You only have to modify the predefined answers if they do not correspond to your actual situation. +  sudo apt-get install vpnc
-If everything works, you will see some compilation messages and then the installation program will stop.+
  
-4Download the unibz.pcf configuration file from the site of the university. +2For Unibz:
-Substitute the notation XXX ZZZ with your university network's username and password:+
  
-    # wget --no-check-certificate --http-user=XXX --http-password=ZZZ https://pro.unibz.it/vpn/Configuration/unibz.zip+  * Create configuration file unibz.conf. Download from here: {{:auth:howto:linux:unibz.conf|}}
  
-5Unzip the configuration file and copy it to the correct location:+2.a For Eurac:
  
-    # unzip unibz.zip +   * Create configuration file eurac.conf. Download from here: {{:auth:howto:linux:eurac.conf|}} 
-     +    
-    # cp unibz.pcf /etc/opt/cisco-vpnclient/Profiles/.+<note important>IPSec obfuscated secret needs to be on a single line.</note> 
 +    
 +<note important>Replace <your-windows-login> with your username.</note>
  
-6. Initialize the vpnclient: 
  
-    # sudo /etc/init.d/vpnclient_init start+For Unibz:
  
-7. You can now start the vpnclient using sudo:+  sudo vi /etc/vpnc/unibz.conf
  
-    $ sudo vpnclient connect unibz+<code> 
 +####################################### 
 +IPSec gateway vpn.unibz.it 
 +IPSec ID Unibz 
 +IPSec obfuscated secret 06294C134E0BEBDA4B449B56BFD305D35D12DABF4044EDB6794926C2CA6D5AEDFE6342DF190E566EB11215DDC1591D5CB6ABEBEB593693C6D0B2077D78034B6AFEEA3221E77F4 
 +C9858DD711AA8DE58F6 
 +Xauth username your-windows-login 
 +# e.g. Xauth username fmoser (not fmoser@unibz.it) 
 +####################################### 
 +</code>
  
-You will see some messages and then you will be requested to insert your username and password:+apply this rights:
  
-    Cisco Systems VPN Client Version 4.8.00 (0490) +  sudo chmod 600 /etc/vpnc/unibz.conf 
-    Copyright (C) 1998-2005 Cisco Systems, Inc. All Rights Reserved. +   
-    Client Type(s): Linux +  sudo chown root.root /etc/vpnc/unibz.conf
-    Running on: Linux 2.6.15-26-686 #1 SMP PREEMPT Thu Aug 3 03:13:28 UTC 2006 i686 +
-    Config file directory: /etc/opt/cisco-vpnclient+
  
-    Initializing the VPN connection. +<code> 
-    Contacting the gateway at 193.206.186.111 +sudo ls -l /etc/vpnc/unibz.conf 
-    User Authentication for unibz...+-rw------- 1 root root 250 2009-05-02 15:54 /etc/vpnc/unibz.conf 
 +</code>
  
-    Enter Username and Password.+For Eurac:
  
-    Username []: X +  sudo vi /etc/vpnc/eurac.conf
-    Password []: Z +
-    Authenticating user. +
-    Negotiating security policies. +
-    Securing communication channel.+
  
-    Your VPN connection is secure.+<code> 
 +####################################### 
 +IPSec gateway vpn.scientificnet.org  
 +IPSec ID Eurac 
 +IPSec obfuscated secret 56A1CD68CC3AD33B48DB0F727ADDBC0A354DE3287D15C8526ED4CEDE4BC2ACDD1BB2460BC2354671A405F6150EA7C294C4DBC4CF9FFE45873BECAD3A2A738C5053BE34F709D592B50AD5BC472CDFF350 
 +Xauth username your-windows-login 
 +# e.g. Xauth username fmoser (not fmoser@eurac.edu) 
 +####################################### 
 +</code>
  
-    VPN tunnel information+apply this rights: 
-    Client address172.21.204.1 + 
-    Server address193.206.186.111 +  sudo chmod 600 /etc/vpnc/eurac.conf 
-    Encryption128-bit AES +   
-    AuthenticationHMAC-SHA +  sudo chown root.root /etc/vpnc/eurac.conf 
-    IP CompressionNone + 
-    NAT passthrough is active on port UDP 4500 +<code> 
-    Local LAN Access is disabled+sudo ls -l /etc/vpnc/eurac.conf 
 +-rw------- 1 root root 250 2009-05-02 15:54 /etc/vpnc/eurac.conf 
 +</code> 
 + 
 +3. Start vpnc 
 + 
 +For Unibz: 
 + 
 +  sudo vpnc-connect --domain unibz unibz 
 + 
 +This will first ask for your sudo password and then 
 +your <unibz-password> 
 + 
 +For Eurac: 
 + 
 +  sudo vpnc-connect --domain eurac eurac 
 + 
 +This will first ask for your sudo password and then 
 +your <eurac-password> 
 + 
 + 
 +4. Stop vpnc 
 + 
 +  sudo vpnc-disconnect 
 + 
 + 
 +==== Possible errors ==== 
 + 
 +If you get the following error:  **vpnc-connect: no response from target**\\ 
 +try adding the line below to your configuration file (unibz.conf) 
 + 
 +**NAT Traversal Mode cisco-udp** 
 + 
 +---- 
 + 
 +When one attempts to connect to their VPN after installing and configuring vpnc on Ubuntu Oneiric,\\ 
 +the following error occurs: 
 + 
 +<code> 
 +root@ubuntu:~# vpnc-connect 
 +Error: either "to" is duplicate, or "ipid" is a garbage
 +</code> 
 + 
 +It appears that the Ubuntu package vpnc comes with an old version of vpnc-script.\\ 
 +This script is what sets up all the addresses and routes for you. The OpenConnect project\\ 
 +provides an updated / revised release of this script. Download the latest copy from [[http://git.infradead.org/users/dwmw2/vpnc-scripts.git/blob_plain/HEAD:/vpnc-script|here]].\\ 
 +Replace the vpnc-script script that comes with the Ubuntu vpnc package: /etc/vpnc/vpnc-script 
 + 
 +---- 
 + 
 +Access via ssh not possible, MTU value to high! 
 + 
 +In some cases the MTU value is too high, which results in an very strange 
 +situation: ping works, but ssh hangs at this point: 
 + 
 +... 
 +debug1: sending SSH2_MSG_KEX_ECDH_INIT 
 +debug1: expecting SSH2_MSG_KEX_ECDH_REPLY  
 + 
 + 
 +There are 2 bug reports for this:\\ 
 + 
 +https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1110787\\ 
 +https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1254085 
 + 
 +and a possible solution/workaround for Linux Mint: 
 + 
 +https://community.hide.me/threads/setup-problem-on-linux-mint-17.1839/ 
 + 
 +Check the current MTU value: 
 + 
 +  ip link | grep mtu 
 + 
 +Set MTU value on interface eth0 to 1392 
 + 
 +  /sbin/ifconfig eth0 mtu 1392 
 + 
 + 
 +==== Decode Group Password ==== 
 + 
 +[[https://www.unix-ag.uni-kl.de/~massar/bin/cisco-decode|cisco vpnclient password decoder]] 
 + 
 + 
 +===== Instructions for Linux Cisco AnyConnect Client ===== 
 + 
 +=== Installation === 
 + 
 +1. Open with your browser (tested with firefox 11.0) the following URL: 
 + 
 +https://vpn.scientificnet.org 
 + 
 +2Enter your Username and password, then press **Login** 
 + 
 +3. A "Warning - Security" Windows opensThis will install the Cisco AnyConnect Client \\ 
 +in /opt/cisco of your Platform. 
 + 
 +4. Press **Run** on the "Warning Security" Window 
 + 
 +{{:auth:howto:linux:cisco-anyconnect_1.png?direct&200}} 
 + 
 +5. In order to install Cisco AnyConnect, Admin (sudo) rights are required; a Window opens,\\ 
 +enter your local password. 
 + 
 +{{:auth:howto:linux:cisco-anyconenct_2.png?direct&200|}} 
 + 
 +6. The Cisco AnyConnect is installed and running, you can close the URL. 
 + 
 +{{:auth:howto:linux:cisco-anyconnect_3.png?direct&200|}} 
 + 
 +=== Launching Cisco AnyConnect GUI === 
 + 
 +This allows you to connect and disconnect the VPN service. 
 + 
 +  /opt/cisco/anyconnect/bin/vpnui 
 + 
 +Please note the vpnagentd must be running for this 
 + 
 +  * ps auxww | grep vpn 
 +<code> 
 +root      1759  0.0  0.3  17984  7644 ?        S    12:58   0:00 /opt/cisco/anyconnect/bin/vpnagentd 
 +</code> 
 + 
 +=== Launching Cisco AnyConnect NON-GUI === 
 + 
 +This allows you to connect and disconnect the VPN service. 
 + 
 +  * /opt/cisco/anyconnect/bin/vpn 
 + 
 +<code> 
 +Cisco AnyConnect Secure Mobility Client (version 3.0.5080) . 
 + 
 +Copyright (c) 2004 - 2011 Cisco Systems, Inc. 
 +All Rights Reserved. 
 + 
 + 
 +  >> state: Disconnected 
 +  >> state: Disconnected 
 +  >> notice: Ready to connect. 
 +  >> registered with local VPN subsystem. 
 +VPN> connect vpn.unibz.it 
 +connect vpn.unibz.it 
 +  >> contacting host (vpn.unibz.it) for login information... 
 +  >> notice: Contacting vpn.unibz.it. 
 +VPN>  
 +  >> Please enter your username and password. 
 +    0) clientless 
 +    1) scientificnetwork 
 +Group: [clientless]  
 + 
 +Username: <your-username> 
 +Password:  
 +  >> state: Connecting 
 +  >> notice: Establishing VPN session... 
 +  >> notice: Checking for profile updates... 
 +  >> notice: Checking for product updates... 
 +  >> notice: Checking for customization updates... 
 +  >> notice: Performing any required updates... 
 +  >> state: Connecting 
 +  >> notice: Establishing VPN session... 
 +  >> notice: Establishing VPN - Initiating connection... 
 +  >> notice: Establishing VPN - Examining system... 
 +  >> notice: Establishing VPN - Activating VPN adapter... 
 +  >> notice: Establishing VPN - Configuring system... 
 +  >> notice: Establishing VPN... 
 +  >> state: Connected 
 +  >> notice: Connected to vpn.unibz.it. 
 +VPN>exit 
 + 
 + 
 +</code> 
 + 
 +=== Uninstalling the AnyConnect Client === 
 + 
 +The client comes with an uninstallation script 
 + 
 +  * sudo /opt/cisco/vpn/bin/vpn_uninstall.sh 
 + 
 +However it doesn't actually uninstall everything properly, it removes files but leaves behind directories.\\ 
 +You can clean up what it leaves behind by deleting the directory /opt/cisco/ and /opt/.cisco/ 
 + 
 +  * sudo rm -r /opt/cisco /opt/.cisco 
 + 
 +Per-user configuration is stored in your home directory in a file called .anyconnect
  
-Please notice that you will have to leave the console open in order to have the VPN running. 
  
/data/www/wiki.inf.unibz.it/data/pages/auth/howto/linux/vpnclient.txt · Last modified: 2022/06/20 11:40 by kohofer