Setup SJTU VPN connection from Ubuntu 16.04 desktop

setup-sjtu-vpn.sh

# Install dependencies
sudo apt install libcurl4-openssl-dev iptables-dev autoconf libgmp3-dev libssl-dev pkg-config

# Install StrongSwan
wget http://download.strongswan.org/strongswan-5.6.1.tar.bz2
tar xjvf strongswan-5.6.1.tar.bz2 && cd strongswan-5.6.1

# FIXME: Some of these options may be redundant, but they work on my laptop.
autoconf && ./configure \
            --prefix=/usr/local \
            --sysconfdir=/etc \
            --enable-acert \
            --enable-addrblock \
            --enable-aesni \
            --enable-chapoly \
            --enable-connmark \
            --enable-coupling \
            --enable-error-notify \
            --enable-gcm \
            --enable-integrity-test \
            --enable-lookip \
            --enable-openssl \
            --enable-curl \
            --enable-eap-identity \
            --enable-eap-mschapv2 \
            --enable-cmd \
            --disable-blowfish \
            --disable-cmac \
            --disable-des \
            --disable-dnskey \
            --disable-fast \
            --disable-ikev1 \
            --disable-md5 \
            --disable-pkcs1 \
            --disable-rc2 \
            --disable-sha1 \
            --disable-sshkey \
            --disable-xcbc
make && sudo make install

# Install certificates
sudo wget -O /etc/ipsec.d/certs/isrgrootx1.pem https://letsencrypt.org/certs/isrgrootx1.pem.txt
# sudo wget -O /etc/ipsec.d/certs/lets-encrypt-x3-cross-signed.pem https://letsencrypt.org/certs/lets-encrypt-x3-cross-signed.pem.txt
sudo wget -O /etc/ipsec.d/certs/letsencryptauthorityx3.pem https://letsencrypt.org/certs/letsencryptauthorityx3.pem.txt

# Turn on VPN with the following command. You will be prompted to enter password.
# TODO: fill in "YOUR_JACCOUNT"
# TODO: remove 'stu' in --host if you are not a student
# sudo charon-cmd --host stu.vpn.sjtu.edu.cn --identity "YOUR_JACCOUNT" \
# --cert /etc/ipsec.d/certs/letsencryptauthorityx3.pem \
# --cert /etc/ipsec.d/certs/isrgrootx1.pem

Thanks a lot.

Hi, it's connecting to the VPN successfully now. But could you please tell me how can I stop the connection: I shut down the process but it's still connecting...

@YJHelloWorld Sorry, I share the same problem with you. Currently I disconnect the VPN by reconnecting to wifi.