I'm using ubuntu 15.10 and a beginner of Linux/GNU system.
I know almost next to nothing about VPN's detail too. So the terminology about VPN might be wrong.
I and my colleagues use a server with VPN. However the network admin changed the protocol to IPsec/L2TP. We were told the server's name, dns server, pre shered key, username and password.
After reading some questions and answer in this website, I guess that IPSec/L2TP with pre shared key has become difficult since 14.10.
But...the installation never worked. I'm confused and have no idea.
I did that as following:
$ apt-get install strongswan network-manager-strongswan
$ LANG=C sudo add-apt-repository ppa:seriy-pr/network-manager-l2tp WARNING:root:could not open file '/etc/apt/sources.list' WARNING:root:could not open file '/etc/apt/sources.list.d/ubuntu-ja.list' WARNING:root:could not open file '/etc/apt/sources.list' WARNING:root:could not open file '/etc/apt/sources.list.d/ubuntu-ja.list' Packages for https://github.com/seriyps/NetworkManager-l2tp Screenshot: http://dl.seriyps.ru/img/network-manager-l2tp.png Full description (in russian) http://seriyps.ru/blog/2012/01/31/plagin-l2tp-dlya-networkmanager/ Installation: sudo apt-add-repository ppa:seriy-pr/network-manager-l2tp sudo apt-get update sudo apt-get install network-manager-l2tp-gnome !!!!!!!!!!!!!!!!!! sudo service xl2tpd stop sudo update-rc.d xl2tpd disable !!!!!!!!!!!!!!!!!! 詳しい情報: https://launchpad.net/~seriy-pr/+archive/ubuntu/network-manager-l2tp [ENTER] を押すと続行します。ctrl-c で追加をキャンセルできます WARNING:root:could not open file '/etc/apt/sources.list' WARNING:root:could not open file '/etc/apt/sources.list.d/ubuntu-ja.list' gpg: keyring `/tmp/tmpdb17vvm8/secring.gpg' created gpg: keyring `/tmp/tmpdb17vvm8/pubring.gpg' created gpg: requesting key B11E44D2 from hkp server keyserver.ubuntu.com gpg: /tmp/tmpdb17vvm8/trustdb.gpg: trustdb created gpg: key B11E44D2: public key "Launchpad PPA for Sergey Prochorov" imported gpg: Total number processed: 1 gpg: imported: 1 (RSA: 1) OK
$ LANG=C sudo apt-get update ... ... Ign http://ppa.launchpad.net wily Release.gpg Ign http://ppa.launchpad.net wily Release ... ... Err http://ppa.launchpad.net wily/main amd64 Packages 404 Not Found ... ... Err http://ppa.launchpad.net wily/main i386 Packages 404 Not Found Ign http://ppa.launchpad.net wily/main Translation-en Ign http://ppa.launchpad.net wily/main Translation-ja Fetched 840 kB in 12s (65.3 kB/s) W: Failed to fetch http://ppa.launchpad.net/seriy-pr/network-manager-l2tp/ubuntu/dists/wily/main/binary-amd64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/seriy-pr/network-manager-l2tp/ubuntu/dists/wily/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead.
$ LANG=C sudo apt-get install network-manager-l2tp Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package network-manager-l2tp
As the outputs show, I can't install
I can't understand these outputs exactly.
How can I solve this?
Here is the network manager modules that I installed.
$ LANG=C apt list network-manager-* Listing... Done network-manager-dbg/wily-updates 1.0.4-0ubuntu5.2 amd64 network-manager-dev/wily-updates 1.0.4-0ubuntu5.2 amd64 network-manager-gnome/wily,now 0.9.10.1-0ubuntu7 amd64 [installed] network-manager-iodine/wily 0.0.5-1ubuntu1 amd64 network-manager-iodine-gnome/wily 0.0.5-1ubuntu1 amd64 network-manager-openconnect/wily,now 1.0.2-1build1 amd64 [installed,automatic] network-manager-openconnect-gnome/wily,now 1.0.2-1build1 amd64 [installed] network-manager-openvpn/wily,now 0.9.10.0-1ubuntu2 amd64 [installed,automatic] network-manager-openvpn-gnome/wily,now 0.9.10.0-1ubuntu2 amd64 [installed] network-manager-pptp/wily,now 0.9.10.0-1ubuntu1 amd64 [installed] network-manager-pptp-gnome/wily,now 0.9.10.0-1ubuntu1 amd64 [installed] network-manager-strongswan/wily,now 1.3.1-1ubuntu1 amd64 [installed] network-manager-vpnc/wily,now 0.9.10.0-1ubuntu1 amd64 [installed,automatic] network-manager-vpnc-gnome/wily,now 0.9.10.0-1ubuntu1 amd64 [installed]
P.S: I know there are some answers that suggest to use openswan but I don't want do that as possible. I'm afraid of security issues.They say openswan has been removed because of security risk. I'm using ubuntu for working desktop so I can't ignore security risks intentionally.