Difference between revisions of "Vpnsec Linux install"

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(sudo ipv root shell (vind ik wat mooier))
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sudo service network-manager restart
sudo service network-manager restart
== [Installatie met NetworkManager op Debian Jessie][Installation with NetworkManager on Debian Jessie] ==
[en]Unfortunately, the strongswan-network-manager package did not make it to Debian Jessie (and as of writing, is not in jessie-backports either). Nevertheless, backporting the current version of the package appears to work fine. The steps involved in achieving this were taken almost verbatim from [http://sebastiangibb.de/debian/2015/09/19/university-cambridge-vpn-debian-jessie.html this guide].[/en]
[nl]Helaas is het strongswan-network-manager package niet in Debian Jessie opgenomen (en zit het op moment van schrijven ook niet in jessie-backports). Desalniettemin lijkt een backport van de huidige versie van het package goed te werken. De stappen om dit te bereiken zijn bijna letterlijk overgenomen van [http://sebastiangibb.de/debian/2015/09/19/university-cambridge-vpn-debian-jessie.html this guide].[/nl]
[en]First you have to install the debian packaging tools:[/en]
[nl]Allereerst moet je de debian packaging tools installeren:[/nl]
<pre>sudo apt-get install packaging-dev debian-keyring devscripts equivs</pre>
[en]Afterwards you have to download the debian source package:[/en]
[nl]Daarna moet je het debian source package downloaden:[/nl]
<pre>dget -x http://http.debian.net/debian/pool/main/n/network-manager-strongswan/network-manager-strongswan_1.3.1-1.dsc</pre>
[en]Install potentially missing dependencies:[/en]
[nl]Installeer potentieel ontbrekende dependencies[/nl]
<pre>cd network-manager-strongswan-1.3.1/
sudo mk-build-deps --install --remove</pre>
[en]Add a backport revision number:[/en]
[nl]Voeg een revisienummer voor de backport toe:[/nl]
<pre>dch --local ~bpo80+ --distribution jessie-backports "Rebuild for jessie-backports."</pre>
[en]Build the package (without package signing)[/en]
[nl]Bouw het package (zonder handtekening)[/nl]
<pre>dpkg-buildpackage -us -uc</pre>
[en]Install the newly built package:[/en]
[nl]Installeer het zojuist gebouwde package:[/nl]
<pre>sudo dpkg -i ../network-manager-strongswan_1.3.1-1~bpo80+1_amd64.deb</pre>
[en]Install potentially missing dependencies, just to be sure:[/en]
[nl]Installeer potentieel ontbrekende dependencies, voor de zekerheid:[/nl]
<pre>sudo apt-get install -f</pre>
[en]Install additional plugins (most notably the eap-mschapv2 plugin):[/en]
[nl]Installeer aanvullende plugins (met name de eap-mschapv2 plugin):[/nl]
<pre>sudo apt-get install libcharon-extra-plugins</pre>
[en]Restart network manager[/en]
[nl]Herstart network manager[/nl]
<pre>sudo systemctl restart network-manager.service</pre>
== [Installatie zonder NetworkManager][Installation without NetworkManager] ==
== [Installatie zonder NetworkManager][Installation without NetworkManager] ==

Revision as of 21:35, 23 March 2016

This procedure assumes using NetworkManager. See below for a manual procedure.

Install the required software:

$ sudo apt-get install network-manager-strongswan strongswan-plugin-eap-mschapv2
The following NEW packages will be installed:
  libstrongswan{a} network-manager-strongswan strongswan-ike{a} strongswan-nm{a}
  strongswan-plugin-eap-mschapv2 strongswan-plugin-openssl{a} 

$ sudo service network-manager stop
network-manager stop/waiting
$ sudo service network-manager start
network-manager start/running, process 29031


Select the NetworkManager applet and after that Edit Connections...

Vpnsec linux 2.png

Click Add, select IPsec/IKEv2 in the section VPN, click Create

Vpnsec linux 3.png

Enter data at:Connection name, Address (vpnsec.science.ru.nl), loginname, etc. and check the marks where needed.

Vpnsec linux 4.png

Save: (Save and Close)

Vpnsec linux 5.png

Start the VPN. Select the NetworkManager applet, next VPN Connections and finally the connection created.

Vpnsec linux 6.png

Known problems

If the VPN connection has been established, but ping ns1.science.ru.nl doesn't work, while ping does work, then probably dnsmasq is the culprit. This can be solved bij disabling the dnsmasq DNS cache, as is described in Ask Ubuntu: DNS problem when connected to a VPN:

First make sure that there are no lines beginning with nameserver in any files in /etc/resolvconf/resolv.conf.d.
If /etc/resolvconf/resolv.conf.d/tail is a symbolic link to target original, make it point to /dev/null.

Second, disconnect from the VPN. Edit /etc/NetworkManager/NetworkManager.conf

$ sudo gedit /etc/NetworkManager/NetworkManager.conf

and comment out


(i.e., add a # so that it looks like the following)


and then

sudo service network-manager restart

Installation with NetworkManager on Debian Jessie

Unfortunately, the strongswan-network-manager package did not make it to Debian Jessie (and as of writing, is not in jessie-backports either). Nevertheless, backporting the current version of the package appears to work fine. The steps involved in achieving this were taken almost verbatim from this guide.

First you have to install the debian packaging tools:

sudo apt-get install packaging-dev debian-keyring devscripts equivs

Afterwards you have to download the debian source package:

dget -x http://http.debian.net/debian/pool/main/n/network-manager-strongswan/network-manager-strongswan_1.3.1-1.dsc

Install potentially missing dependencies:

cd network-manager-strongswan-1.3.1/
sudo mk-build-deps --install --remove

Add a backport revision number:

dch --local ~bpo80+ --distribution jessie-backports "Rebuild for jessie-backports."

Build the package (without package signing)

dpkg-buildpackage -us -uc

Install the newly built package:

sudo dpkg -i ../network-manager-strongswan_1.3.1-1~bpo80+1_amd64.deb

Install potentially missing dependencies, just to be sure:

sudo apt-get install -f

Install additional plugins (most notably the eap-mschapv2 plugin):

sudo apt-get install libcharon-extra-plugins

Restart network manager

sudo systemctl restart network-manager.service

Installation without NetworkManager

Note: Below some remarks on doing this for Fedora Core (FC23).

Install strongswan, including the curl, eap-identity, eap-mschapv2 and eap-md4 (required for eap-mschapv2) plugins. When you compile strongswan from source, make sure to pass the right parameters to the configure script.

$ ./configure --enable-curl --enable-md4 --enable-openssl --enable-xauth-eap --enable-eap-md5 --enable-eap-gtc --enable-eap-tls --enable-eap-ttls --enable-eap-peap --enable-eap-mschapv2 --enable-eap-identify
$ make
$ sudo make install

You can test which plugins are loaded with sudo ipsec statusall or sudo ipsec listplugins. If necessary you can load plugins manually by editing strongswan.conf.

Make sure your ipsec.conf, probably located in /etc or in /usr/local/etc, looks like this:

config setup

conn %default

conn science
    leftid=mysciencelogin        <-- edit this
    eap_identity=mysciencelogin  <-- edit this

And your ipsec.secrets as follows, where you enter your own Science account name and password. Watch out that this file cannot be read by everyone, as it contains your password! It is typically owned by root:root with -rw------- (600) permissions.

mysciencelogin : EAP "mypassword"

Everything should work now:

$ sudo ipsec start
$ sudo ipsec up science

It can be necessary to put the root certificate in the right folder manually:

$ sudo ln -s /etc/ca-certificates/extracted/cadir/DigiCert_Assured_ID_Root_CA.pem [/usr/local]/etc/ipsec.d/cacerts/DigiCert_Assured_ID_Root_CA.pem

Fedora (FC23)

Work in progress... [Gebruiker:Arjen], FC23, 4/3/2016:

On Fedora (tested on FC23), replace command ipsec by strongswan in the instructions above.

To get the newest SELinux policies, you need to issue:

dnf update --enablerepo=updates-testing selinux-policy

Edit /etc/strongswan/strongswan.d/charon/resolve.conf to include a line:

file = /etc/resolv.conf

To resolve errors about certificate CN=TERENA SSL CA 3 not being trusted:

Navigate to [2] Download DigiCert_Assured_ID_Root_CA.crt and TERENA_SSL_CA_3.crt.

Next, extract the .pem files, copy these to the strongswan config directories, and reread the certificates, like this:

openssl x509 -inform DES -in DigiCert_Assured_ID_Root_CA.crt -out DigiCert_Assured_ID_Root_CA.pem -text
openssl x509 -inform DES -in TERENA_SSL_CA_3.crt -out TERENA_SSL_CA_3.pem -text

cp DigiCert_Assured_ID_Root_CA.pem /etc/strongswan/ipsec.d/cacerts
cp TERENA_SSL_CA_3.pem /etc/strongswan/ipsec.d/certs

strongswan rereadall

To overcome problems with DNS, I had to stop service `libvirtd`. Yet to be resolved.