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it_tips:luvpn [2020/03/12 16:31]
florido [LUVPN on Ubuntu 18.04]
it_tips:luvpn [2020/05/08 15:56] (current)
florido
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 ====== Connecting to the LU VPN ====== ====== Connecting to the LU VPN ======
 +
 +:!: **20200508** These instructions have been updated. LU changed the way to connect to the VPN. I am investigating whether encryption is enforced. :!:
  
 The Lund University VPN is a system to secure connect from outside the LU network to The Lund University VPN is a system to secure connect from outside the LU network to
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   * Generic: https://​luservicedesk.service-now.com/​support_en?​id=kb_article_en&​sys_id=61bc4e06dba37b4049c77cc9bf961944   * Generic: https://​luservicedesk.service-now.com/​support_en?​id=kb_article_en&​sys_id=61bc4e06dba37b4049c77cc9bf961944
  
-But below I will detail how to configure and install in commonly used distributions.+But below I will detail how to configure and install in commonly used GNU/​Linux ​distributions.
  
 ===== LUVPN on Ubuntu 18.04 ===== ===== LUVPN on Ubuntu 18.04 =====
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 If you're not running network manager and/or gnome, there might be other solutions, please contact me. If you're not running network manager and/or gnome, there might be other solutions, please contact me.
  
-  - Install the needed packages <code:shell>apt-get install network-manager-l2tp network-manager-l2tp-gnome</​code> ​+  - Install the needed packages <​code ​bash>sudo apt-get install network-manager-l2tp network-manager-l2tp-gnome</​code> ​
   - Open the settings dialog {{ :​it_tips:​luvpn_opengnomesettings.png |}}   - Open the settings dialog {{ :​it_tips:​luvpn_opengnomesettings.png |}}
   - Select Network (1) and click on the **+** symbol next to the VPN {{ :​it_tips:​luvpn_createvpn.png |}}   - Select Network (1) and click on the **+** symbol next to the VPN {{ :​it_tips:​luvpn_createvpn.png |}}
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 Once configured, one can easily connect and reconnect to the VPN using the upper right menu: {{ :​it_tips:​luvpn_disconnect.png |}} Once configured, one can easily connect and reconnect to the VPN using the upper right menu: {{ :​it_tips:​luvpn_disconnect.png |}}
  
-However, in some cases the browser and other applications will fail to detect the non-vpn network again, so one way to make it happen faster is to restart the network manager AFTER disconnecting from the VPN: <code:bash>​systemctl restart network-manager</​code>​+However, in some cases the browser and other applications will fail to detect the non-vpn network again, so one way to make it happen faster is to restart the network manager AFTER disconnecting from the VPN: <code bash>sudo systemctl restart network-manager</​code>​
  
 ==== Enable VPN security (RECOMMENDED) ==== ==== Enable VPN security (RECOMMENDED) ====
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   - Enter the information below:{{ :​it_tips:​luvpn_ipsec.png |}}   - Enter the information below:{{ :​it_tips:​luvpn_ipsec.png |}}
   - :!: BUG :!: : The button "​enforce UDP encapsulation"​ does not work, so it must be set manually in the config file. This workaround below will set ALL the IPsec connections to enable this feature, so use with care if you have IPsec for some other purpose.   - :!: BUG :!: : The button "​enforce UDP encapsulation"​ does not work, so it must be set manually in the config file. This workaround below will set ALL the IPsec connections to enable this feature, so use with care if you have IPsec for some other purpose.
-        - Edit ''/​etc/​ipsec.conf''​ so that the top part looks like this: <code:shell># ipsec.conf - strongSwan IPsec configuration file+        - Edit ''/​etc/​ipsec.conf''​ so that the top part looks like this: <​code ​bash># ipsec.conf - strongSwan IPsec configuration file
  
 # basic configuration # basic configuration
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         # strictcrlpolicy=yes         # strictcrlpolicy=yes
         # uniqueids = no         # uniqueids = no
-        ​enforceencaps ​= yes+        ​forceencaps ​= yes
 </​code>​ </​code>​
-      - restart the l2tp and ipsec services with this command: <code:shell>​systemctl restart xl2tpd strongswan</​code>​+      - restart the l2tp and ipsec services with this command: <​code ​bash>sudo systemctl restart xl2tpd strongswan</​code>​ 
 + 
 +==== Known issues ==== 
 + 
 +Sometimes when restarting networking the icon on the upper right corner shows that you're disconnected,​ and the VPN will not connect any longer. It is a gnome3 bug that affects network manager. To solve, it is enough to restart gnome3 by doing the following:​ 
 + 
 +  - Press ''​Alt''​ and ''​F2''​ 
 +  - In the dialog that appears, type ''​r''​ and press enter 
 + 
 +The icon should be restored. 
  
  
 ===== LUVPN on OpenSuSE 15.1 ===== ===== LUVPN on OpenSuSE 15.1 =====
-  ​+ 
 +These instructions are fork Kde5 (Plasma). If you have another window manager it might be different. 
 + 
 +  - Install required packages <code bash>​sudo zypper in NetworkManager-l2tp</​code>​ 
 +  - Open connection manager. Click on the small computer in the lower right corner (1) and then click on the sliders icon (2) {{ :​it_tips:​luvpn_os15_configmanager.png |}} 
 +  - Click on the **+** plus symbol in the connection manager to add a new connection. {{ :​it_tips:​luvpn_os15_addconnection.png |}} 
 +  - Select the VPN type L2TP {{ :​it_tips:​luvpn_os15_selectl2tp.png |}} 
 +  - Configure the VPN as shown in the figure, then click Save. {{ :​it_tips:​luvpn_os15_configvpn.png |}} 
 +  - The VPN is now listed in the network manager. Click OK. {{ :​it_tips:​luvpn_os15_vpndone.png |}} 
 + 
 +==== Connecting to the VPN ==== 
 + 
 +  - In order to **connect**,​ click on the small computer icon in the lower right corner, identify the VPN network and click on "​Connect"​ {{ :​it_tips:​luvpn_os15_vpnconnect.png |}} 
 +  - You may be prompted for your LUCAT password. If all goes well, you should see this icon in the lower left corner: {{ :​it_tips:​luvpn_os15_connected.png?​600 |}} 
 +  - The connection is now established,​ however it is not very secure. You may need to configure IPsec to encrypt it, see later in this document. 
 + 
 +==== Disconnect from the VPN ==== 
 +  - To **disconnect**,​ open the network manager icon again and click "​**Disconnect**"​  
 +    - Sometimes the applications do not react well after a vpn disconnect. Restarting NetworkManager doesn'​t help in openSuSE, it just messes up with its configuration. The best is to close and reopen the application or logout and relogin. 
 + 
 +==== ::WIP:: Enabling IPsec ::WIP:: ==== 
 + 
 +Unfortunately at the moment I did not manage to make IPsec work with OpenSuSE. Something is broken in the networkmanager configuration that does not pass the options to the services. In principle it should be enough to configure the IPsec options in the VPN dialog as below: {{ :​it_tips:​luvpn_os15_vpnipsec.png |}} 
 + 
 +But it does not work. 
it_tips/luvpn.1584030713.txt.gz · Last modified: 2020/03/12 16:31 by florido