mirror of
https://github.com/hwdsl2/setup-ipsec-vpn.git
synced 2024-06-20 04:36:29 +02:00
Various clean up
This commit is contained in:
hwdsl2
parent
b7a4bed866
commit
70c6d6b540
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@ -159,7 +159,7 @@ VPN_PASSWORD='你的VPN密码' sh vpnsetup.sh
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## 升级Libreswan
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提供两个额外的脚本 <a href="extras/vpnupgrade.sh" target="_blank">vpnupgrade.sh</a> 和 <a href="extras/vpnupgrade_centos.sh" target="_blank">vpnupgrade_centos.sh</a>，可用于升级 <a href="https://libreswan.org" target="_blank">Libreswan</a> （<a href="https://github.com/libreswan/libreswan/blob/master/CHANGES" target="_blank">更新日志</a> | <a href="https://lists.libreswan.org/mailman/listinfo/swan-announce" target="_blank">通知列表</a>）。请在运行前根据需要修改 `swan_ver` 变量。查看已安装版本： `ipsec --version`.
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提供两个额外的脚本 <a href="extras/vpnupgrade.sh" target="_blank">vpnupgrade.sh</a> 和 <a href="extras/vpnupgrade_centos.sh" target="_blank">vpnupgrade_centos.sh</a>，可用于升级 <a href="https://libreswan.org" target="_blank">Libreswan</a> （<a href="https://github.com/libreswan/libreswan/blob/master/CHANGES" target="_blank">更新日志</a> | <a href="https://lists.libreswan.org/mailman/listinfo/swan-announce" target="_blank">通知列表</a>）。请在运行前根据需要修改 `SWAN_VER` 变量。查看已安装版本： `ipsec --version`.
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```bash
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# Ubuntu & Debian
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@ -106,7 +106,7 @@ sudo sh vpnsetup.sh
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```bash
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# All values MUST be placed inside 'single quotes'
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# DO NOT use these characters within values: \ " '
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# DO NOT use these special characters within values: \ " '
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wget https://git.io/vpnsetup -O vpnsetup.sh && sudo \
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VPN_IPSEC_PSK='your_ipsec_pre_shared_key' \
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VPN_USER='your_vpn_username' \
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@ -159,7 +159,7 @@ The scripts will backup existing config files before making changes, with `.old-
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## Upgrade Libreswan
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The additional scripts <a href="extras/vpnupgrade.sh" target="_blank">vpnupgrade.sh</a> and <a href="extras/vpnupgrade_centos.sh" target="_blank">vpnupgrade_centos.sh</a> can be used to upgrade <a href="https://libreswan.org" target="_blank">Libreswan</a> (<a href="https://github.com/libreswan/libreswan/blob/master/CHANGES" target="_blank">changelog</a> | <a href="https://lists.libreswan.org/mailman/listinfo/swan-announce" target="_blank">announce</a>). Edit the `swan_ver` variable as necessary. Check which version is installed: `ipsec --version`.
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The additional scripts <a href="extras/vpnupgrade.sh" target="_blank">vpnupgrade.sh</a> and <a href="extras/vpnupgrade_centos.sh" target="_blank">vpnupgrade_centos.sh</a> can be used to upgrade <a href="https://libreswan.org" target="_blank">Libreswan</a> (<a href="https://github.com/libreswan/libreswan/blob/master/CHANGES" target="_blank">changelog</a> | <a href="https://lists.libreswan.org/mailman/listinfo/swan-announce" target="_blank">announce</a>). Edit the `SWAN_VER` variable as necessary. Check which version is installed: `ipsec --version`.
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```bash
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# Ubuntu & Debian
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@ -18,7 +18,7 @@ For `IPsec/L2TP`, VPN users are specified in `/etc/ppp/chap-secrets`. The format
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... ...
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```
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You can add more users, use one line for each user. DO NOT use these characters within values: `\ " '`
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You can add more users, use one line for each user. DO NOT use these special characters within values: `\ " '`
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For `IPsec/XAuth ("Cisco IPsec")`, VPN users are specified in `/etc/ipsec.d/passwd`. The format of this file is:
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@ -11,14 +11,14 @@
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# know how you have improved it!
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# Check https://libreswan.org for the latest version
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swan_ver=3.22
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SWAN_VER=3.22
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### DO NOT edit below this line ###
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export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
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exiterr() { echo "Error: $1" >&2; exit 1; }
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exiterr2() { echo "Error: 'apt-get install' failed." >&2; exit 1; }
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exiterr2() { exiterr "'apt-get install' failed."; }
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vpnupgrade() {
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@ -27,31 +27,31 @@ if [ -z "$os_type" ]; then
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[ -f /etc/os-release ] && os_type="$(. /etc/os-release && echo "$ID")"
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[ -f /etc/lsb-release ] && os_type="$(. /etc/lsb-release && echo "$DISTRIB_ID")"
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fi
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if ! printf %s "$os_type" | head -n 1 | grep -qiF -e ubuntu -e debian -e raspbian; then
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exiterr "This script only supports Ubuntu/Debian."
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if ! printf '%s' "$os_type" | head -n 1 | grep -qiF -e ubuntu -e debian -e raspbian; then
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exiterr "This script only supports Ubuntu and Debian."
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fi
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if [ "$(sed 's/\..*//' /etc/debian_version)" = "7" ]; then
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exiterr "This script does not support Debian 7 (Wheezy)."
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exiterr "Debian 7 is not supported."
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fi
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if [ -f /proc/user_beancounters ]; then
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exiterr "This script does not support OpenVZ VPS."
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exiterr "OpenVZ VPS is not supported."
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fi
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if [ "$(id -u)" != 0 ]; then
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exiterr "Script must be run as root. Try 'sudo sh $0'"
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fi
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if [ -z "$swan_ver" ]; then
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exiterr "Libreswan version 'swan_ver' not specified."
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if [ -z "$SWAN_VER" ]; then
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exiterr "Libreswan version 'SWAN_VER' not specified."
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fi
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if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -q "Libreswan"; then
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exiterr "This script requires Libreswan already installed."
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fi
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if [ "$swan_ver" = "3.22" ]; then
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if [ "$SWAN_VER" = "3.22" ]; then
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if grep -qs raspbian /etc/os-release; then
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echo "Note: For Raspberry Pi systems, this script will install Libreswan"
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echo "version 3.21 instead of 3.22, to avoid some recent bugs."
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@ -61,7 +61,7 @@ if [ "$swan_ver" = "3.22" ]; then
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case $response in
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[yY][eE][sS]|[yY])
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echo
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swan_ver=3.21
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SWAN_VER=3.21
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;;
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*)
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echo "Aborting."
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@ -71,8 +71,8 @@ if [ "$swan_ver" = "3.22" ]; then
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fi
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fi
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if /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$swan_ver"; then
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echo "You already have Libreswan version $swan_ver installed! "
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if /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
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echo "You already have Libreswan version $SWAN_VER installed! "
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echo "If you continue, the same version will be re-installed."
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echo
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printf "Do you wish to continue anyway? [y/N] "
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@ -91,7 +91,7 @@ fi
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clear
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cat <<EOF
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Welcome! This script will build and install Libreswan $swan_ver on your server.
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Welcome! This script will build and install Libreswan $SWAN_VER on your server.
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Additional packages required for Libreswan compilation will also be installed.
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This is intended for use on servers running an older version of Libreswan.
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@ -146,21 +146,21 @@ apt-get -yq update || exiterr "'apt-get update' failed."
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apt-get -yq install wget || exiterr2
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# Install necessary packages
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apt-get -yq install libnss3-dev libnspr4-dev pkg-config libpam0g-dev \
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libcap-ng-dev libcap-ng-utils libselinux1-dev \
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libcurl4-nss-dev flex bison gcc make \
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libnss3-tools libevent-dev || exiterr2
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apt-get -yq install libnss3-dev libnspr4-dev pkg-config \
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libpam0g-dev libcap-ng-dev libcap-ng-utils libselinux1-dev \
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libcurl4-nss-dev flex bison gcc make libnss3-tools \
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libevent-dev || exiterr2
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# Compile and install Libreswan
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swan_file="libreswan-$swan_ver.tar.gz"
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swan_url1="https://github.com/libreswan/libreswan/archive/v$swan_ver.tar.gz"
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swan_file="libreswan-$SWAN_VER.tar.gz"
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swan_url1="https://github.com/libreswan/libreswan/archive/v$SWAN_VER.tar.gz"
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swan_url2="https://download.libreswan.org/$swan_file"
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if ! { wget -t 3 -T 30 -nv -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -nv -O "$swan_file" "$swan_url2"; }; then
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exiterr "Cannot download Libreswan source."
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fi
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/bin/rm -rf "/opt/src/libreswan-$swan_ver"
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/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
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tar xzf "$swan_file" && /bin/rm -f "$swan_file"
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cd "libreswan-$swan_ver" || exiterr "Cannot enter Libreswan source dir."
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cd "libreswan-$SWAN_VER" || exiterr "Cannot enter Libreswan source dir."
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cat > Makefile.inc.local <<'EOF'
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WERROR_CFLAGS =
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USE_DNSSEC = false
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@ -174,15 +174,15 @@ make "-j$((NPROCS+1))" -s base && make -s install-base
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# Verify the install and clean up
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cd /opt/src || exiterr "Cannot enter /opt/src."
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/bin/rm -rf "/opt/src/libreswan-$swan_ver"
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if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$swan_ver"; then
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exiterr "Libreswan $swan_ver failed to build."
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/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
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if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
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exiterr "Libreswan $SWAN_VER failed to build."
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fi
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# Update ipsec.conf for Libreswan 3.19 and newer
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IKE_NEW=" ike=3des-sha1,3des-sha2,aes-sha1,aes-sha1;modp1024,aes-sha2,aes-sha2;modp1024,aes256-sha2_512"
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PHASE2_NEW=" phase2alg=3des-sha1,3des-sha2,aes-sha1,aes-sha2,aes256-sha2_512"
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sed -i".old-$(date +%Y-%m-%d-%H:%M:%S)" \
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sed -i".old-$(date +%F-%T)" \
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-e "s/^[[:space:]]\+auth=esp\$/ phase2=esp/" \
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-e "s/^[[:space:]]\+forceencaps=yes\$/ encapsulation=yes/" \
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-e "s/^[[:space:]]\+ike=.\+\$/$IKE_NEW/" \
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@ -192,7 +192,7 @@ sed -i".old-$(date +%Y-%m-%d-%H:%M:%S)" \
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service ipsec restart
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echo
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echo "Libreswan $swan_ver was installed successfully! "
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echo "Libreswan $SWAN_VER was installed successfully! "
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echo
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}
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@ -11,14 +11,14 @@
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# know how you have improved it!
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# Check https://libreswan.org for the latest version
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swan_ver=3.22
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SWAN_VER=3.22
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### DO NOT edit below this line ###
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export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
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exiterr() { echo "Error: $1" >&2; exit 1; }
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exiterr2() { echo "Error: 'yum install' failed." >&2; exit 1; }
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exiterr2() { exiterr "'yum install' failed."; }
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vpnupgrade() {
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@ -27,23 +27,23 @@ if ! grep -qs -e "release 6" -e "release 7" /etc/redhat-release; then
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fi
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if [ -f /proc/user_beancounters ]; then
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exiterr "This script does not support OpenVZ VPS."
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exiterr "OpenVZ VPS is not supported."
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fi
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if [ "$(id -u)" != 0 ]; then
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exiterr "Script must be run as root. Try 'sudo sh $0'"
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fi
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if [ -z "$swan_ver" ]; then
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exiterr "Libreswan version 'swan_ver' not specified."
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if [ -z "$SWAN_VER" ]; then
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exiterr "Libreswan version 'SWAN_VER' not specified."
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fi
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if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -q "Libreswan"; then
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exiterr "This script requires Libreswan already installed."
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fi
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if /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$swan_ver"; then
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echo "You already have Libreswan version $swan_ver installed! "
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if /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
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echo "You already have Libreswan version $SWAN_VER installed! "
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echo "If you continue, the same version will be re-installed."
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echo
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printf "Do you wish to continue anyway? [y/N] "
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@ -62,7 +62,7 @@ fi
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clear
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cat <<EOF
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Welcome! This script will build and install Libreswan $swan_ver on your server.
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Welcome! This script will build and install Libreswan $SWAN_VER on your server.
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Additional packages required for Libreswan compilation will also be installed.
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This is intended for use on servers running an older version of Libreswan.
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@ -119,11 +119,9 @@ yum -y install epel-release || exiterr2
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# Install necessary packages
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yum -y install nss-devel nspr-devel pkgconfig pam-devel \
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libcap-ng-devel libselinux-devel \
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curl-devel flex bison gcc make \
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fipscheck-devel || exiterr2
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libcap-ng-devel libselinux-devel curl-devel \
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flex bison gcc make fipscheck-devel || exiterr2
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# Install libevent2 and systemd-devel
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if grep -qs "release 6" /etc/redhat-release; then
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yum -y remove libevent-devel
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yum -y install libevent2-devel || exiterr2
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@ -132,15 +130,15 @@ else
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fi
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# Compile and install Libreswan
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swan_file="libreswan-$swan_ver.tar.gz"
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swan_url1="https://github.com/libreswan/libreswan/archive/v$swan_ver.tar.gz"
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swan_file="libreswan-$SWAN_VER.tar.gz"
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swan_url1="https://github.com/libreswan/libreswan/archive/v$SWAN_VER.tar.gz"
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swan_url2="https://download.libreswan.org/$swan_file"
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if ! { wget -t 3 -T 30 -nv -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -nv -O "$swan_file" "$swan_url2"; }; then
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exiterr "Cannot download Libreswan source."
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fi
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/bin/rm -rf "/opt/src/libreswan-$swan_ver"
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/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
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tar xzf "$swan_file" && /bin/rm -f "$swan_file"
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cd "libreswan-$swan_ver" || exiterr "Cannot enter Libreswan source dir."
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cd "libreswan-$SWAN_VER" || exiterr "Cannot enter Libreswan source dir."
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cat > Makefile.inc.local <<'EOF'
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WERROR_CFLAGS =
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USE_DNSSEC = false
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@ -151,9 +149,9 @@ make "-j$((NPROCS+1))" -s base && make -s install-base
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# Verify the install and clean up
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cd /opt/src || exiterr "Cannot enter /opt/src."
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/bin/rm -rf "/opt/src/libreswan-$swan_ver"
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if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$swan_ver"; then
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exiterr "Libreswan $swan_ver failed to build."
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/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
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if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
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exiterr "Libreswan $SWAN_VER failed to build."
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fi
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# Restore SELinux contexts
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@ -164,7 +162,7 @@ restorecon /usr/local/libexec/ipsec -Rv 2>/dev/null
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# Update ipsec.conf for Libreswan 3.19 and newer
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IKE_NEW=" ike=3des-sha1,3des-sha2,aes-sha1,aes-sha1;modp1024,aes-sha2,aes-sha2;modp1024,aes256-sha2_512"
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PHASE2_NEW=" phase2alg=3des-sha1,3des-sha2,aes-sha1,aes-sha2,aes256-sha2_512"
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sed -i".old-$(date +%Y-%m-%d-%H:%M:%S)" \
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sed -i".old-$(date +%F-%T)" \
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-e "s/^[[:space:]]\+auth=esp\$/ phase2=esp/" \
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-e "s/^[[:space:]]\+forceencaps=yes\$/ encapsulation=yes/" \
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-e "s/^[[:space:]]\+ike=.\+\$/$IKE_NEW/" \
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@ -174,7 +172,7 @@ sed -i".old-$(date +%Y-%m-%d-%H:%M:%S)" \
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service ipsec restart
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echo
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echo "Libreswan $swan_ver was installed successfully! "
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echo "Libreswan $SWAN_VER was installed successfully! "
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echo
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}
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82
vpnsetup.sh
82
vpnsetup.sh
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@ -22,7 +22,7 @@
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# Define your own values for these variables
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# - IPsec pre-shared key, VPN username and password
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# - All values MUST be placed inside 'single quotes'
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# - DO NOT use these characters within values: \ " '
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# - DO NOT use these special characters within values: \ " '
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YOUR_IPSEC_PSK=''
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YOUR_USERNAME=''
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@ -36,13 +36,13 @@ YOUR_PASSWORD=''
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export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
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exiterr() { echo "Error: $1" >&2; exit 1; }
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exiterr2() { echo "Error: 'apt-get install' failed." >&2; exit 1; }
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conf_bk() { /bin/cp -f "$1" "$1.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null; }
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exiterr2() { exiterr "'apt-get install' failed."; }
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conf_bk() { /bin/cp -f "$1" "$1.old-$(date +%F-%T)" 2>/dev/null; }
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bigecho() { echo; echo "## $1"; echo; }
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check_ip() {
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IP_REGEX='^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$'
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printf %s "$1" | tr -d '\n' | grep -Eq "$IP_REGEX"
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printf '%s' "$1" | tr -d '\n' | grep -Eq "$IP_REGEX"
|
||||
}
|
||||
|
||||
vpnsetup() {
|
||||
|
|
@ -52,18 +52,16 @@ if [ -z "$os_type" ]; then
|
|||
[ -f /etc/os-release ] && os_type="$(. /etc/os-release && echo "$ID")"
|
||||
[ -f /etc/lsb-release ] && os_type="$(. /etc/lsb-release && echo "$DISTRIB_ID")"
|
||||
fi
|
||||
if ! printf %s "$os_type" | head -n 1 | grep -qiF -e ubuntu -e debian -e raspbian; then
|
||||
exiterr "This script only supports Ubuntu/Debian."
|
||||
if ! printf '%s' "$os_type" | head -n 1 | grep -qiF -e ubuntu -e debian -e raspbian; then
|
||||
exiterr "This script only supports Ubuntu and Debian."
|
||||
fi
|
||||
|
||||
if [ "$(sed 's/\..*//' /etc/debian_version)" = "7" ]; then
|
||||
exiterr "This script does not support Debian 7 (Wheezy)."
|
||||
exiterr "Debian 7 is not supported."
|
||||
fi
|
||||
|
||||
if [ -f /proc/user_beancounters ]; then
|
||||
echo "Error: This script does not support OpenVZ VPS." >&2
|
||||
echo "Try OpenVPN: https://github.com/Nyr/openvpn-install" >&2
|
||||
exit 1
|
||||
exiterr "OpenVZ VPS is not supported. Try OpenVPN: github.com/Nyr/openvpn-install"
|
||||
fi
|
||||
|
||||
if [ "$(id -u)" != 0 ]; then
|
||||
|
|
@ -75,17 +73,11 @@ def_iface="$(route 2>/dev/null | grep '^default' | grep -o '[^ ]*$')"
|
|||
[ -z "$def_iface" ] && def_iface="$(ip -4 route list 0/0 2>/dev/null | grep -Po '(?<=dev )(\S+)')"
|
||||
|
||||
def_iface_state=$(cat "/sys/class/net/$def_iface/operstate" 2>/dev/null)
|
||||
if [ -z "$VPN_NET_IFACE" ] && [ -n "$def_iface_state" ] && [ "$def_iface_state" != "down" ]; then
|
||||
if [ -n "$def_iface_state" ] && [ "$def_iface_state" != "down" ]; then
|
||||
if ! grep -qs raspbian /etc/os-release; then
|
||||
case "$def_iface" in
|
||||
wl*)
|
||||
cat 1>&2 <<EOF
|
||||
Error: Default network interface '$def_iface' detected.
|
||||
>> DO NOT RUN THIS SCRIPT ON YOUR PC OR MAC! <<
|
||||
If you are certain that this script is running on a server, re-run it with:
|
||||
sudo VPN_NET_IFACE="$def_iface" sh "$0"
|
||||
EOF
|
||||
exit 1
|
||||
exiterr "Wireless interface '$def_iface' detected. DO NOT run this script on your PC or Mac!"
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
|
|
@ -97,9 +89,8 @@ if [ -z "$net_iface_state" ] || [ "$net_iface_state" = "down" ] || [ "$net_iface
|
|||
printf "Error: Network interface '%s' is not available.\n" "$net_iface" >&2
|
||||
if [ -z "$VPN_NET_IFACE" ]; then
|
||||
cat 1>&2 <<EOF
|
||||
Unable to detect your server's default network interface.
|
||||
You may manually re-run this script with:
|
||||
sudo VPN_NET_IFACE="your_default_network_interface" sh "$0"
|
||||
Unable to detect the default network interface. Manually re-run this script with:
|
||||
sudo VPN_NET_IFACE="your_default_interface_name" sh "$0"
|
||||
EOF
|
||||
fi
|
||||
exit 1
|
||||
|
|
@ -120,13 +111,13 @@ if [ -z "$VPN_IPSEC_PSK" ] || [ -z "$VPN_USER" ] || [ -z "$VPN_PASSWORD" ]; then
|
|||
exiterr "All VPN credentials must be specified. Edit the script and re-enter them."
|
||||
fi
|
||||
|
||||
if printf %s "$VPN_IPSEC_PSK $VPN_USER $VPN_PASSWORD" | LC_ALL=C grep -q '[^ -~]\+'; then
|
||||
if printf '%s' "$VPN_IPSEC_PSK $VPN_USER $VPN_PASSWORD" | LC_ALL=C grep -q '[^ -~]\+'; then
|
||||
exiterr "VPN credentials must not contain non-ASCII characters."
|
||||
fi
|
||||
|
||||
case "$VPN_IPSEC_PSK $VPN_USER $VPN_PASSWORD" in
|
||||
*[\\\"\']*)
|
||||
exiterr "VPN credentials must not contain the following characters: \\ \" '"
|
||||
exiterr "VPN credentials must not contain these special characters: \\ \" '"
|
||||
;;
|
||||
esac
|
||||
|
||||
|
|
@ -138,11 +129,12 @@ cd /opt/src || exiterr "Cannot enter /opt/src."
|
|||
|
||||
bigecho "Populating apt-get cache..."
|
||||
|
||||
# Wait up to 60s for apt/dpkg lock
|
||||
count=0
|
||||
while fuser /var/lib/apt/lists/lock /var/lib/dpkg/lock >/dev/null 2>&1; do
|
||||
[ "$count" -ge "20" ] && exiterr "Cannot get apt/dpkg lock."
|
||||
count=$((count+1))
|
||||
printf %s .
|
||||
printf '%s' '.'
|
||||
sleep 3
|
||||
done
|
||||
|
||||
|
|
@ -151,14 +143,14 @@ apt-get -yq update || exiterr "'apt-get update' failed."
|
|||
|
||||
bigecho "Installing packages required for setup..."
|
||||
|
||||
apt-get -yq install wget dnsutils openssl || exiterr2
|
||||
apt-get -yq install iproute gawk grep sed net-tools || exiterr2
|
||||
apt-get -yq install wget dnsutils openssl \
|
||||
iproute gawk grep sed net-tools || exiterr2
|
||||
|
||||
bigecho "Trying to auto discover IP of this server..."
|
||||
|
||||
cat <<'EOF'
|
||||
In case the script hangs here for more than a few minutes,
|
||||
use Ctrl-C to interrupt. Then edit it and manually enter IP.
|
||||
press Ctrl-C to abort. Then edit it and manually enter IP.
|
||||
EOF
|
||||
|
||||
# In case auto IP discovery fails, enter server's public IP here.
|
||||
|
|
@ -169,15 +161,14 @@ PUBLIC_IP=${VPN_PUBLIC_IP:-''}
|
|||
|
||||
# Check IP for correct format
|
||||
check_ip "$PUBLIC_IP" || PUBLIC_IP=$(wget -t 3 -T 15 -qO- http://ipv4.icanhazip.com)
|
||||
check_ip "$PUBLIC_IP" || exiterr "Cannot find valid public IP. Edit the script and manually enter it."
|
||||
check_ip "$PUBLIC_IP" || exiterr "Cannot detect this server's public IP. Edit the script and manually enter it."
|
||||
|
||||
bigecho "Installing packages required for the VPN..."
|
||||
|
||||
apt-get -yq install libnss3-dev libnspr4-dev pkg-config libpam0g-dev \
|
||||
libcap-ng-dev libcap-ng-utils libselinux1-dev \
|
||||
libcurl4-nss-dev flex bison gcc make \
|
||||
libnss3-tools libevent-dev || exiterr2
|
||||
apt-get -yq install ppp xl2tpd || exiterr2
|
||||
apt-get -yq install libnss3-dev libnspr4-dev pkg-config \
|
||||
libpam0g-dev libcap-ng-dev libcap-ng-utils libselinux1-dev \
|
||||
libcurl4-nss-dev flex bison gcc make libnss3-tools \
|
||||
libevent-dev ppp xl2tpd || exiterr2
|
||||
|
||||
bigecho "Installing Fail2Ban to protect SSH..."
|
||||
|
||||
|
|
@ -185,19 +176,20 @@ apt-get -yq install fail2ban || exiterr2
|
|||
|
||||
bigecho "Compiling and installing Libreswan..."
|
||||
|
||||
swan_ver=3.22
|
||||
if grep -qs raspbian /etc/os-release; then
|
||||
swan_ver=3.21
|
||||
if ! grep -qs raspbian /etc/os-release; then
|
||||
SWAN_VER=3.22
|
||||
else
|
||||
SWAN_VER=3.21
|
||||
fi
|
||||
swan_file="libreswan-$swan_ver.tar.gz"
|
||||
swan_url1="https://github.com/libreswan/libreswan/archive/v$swan_ver.tar.gz"
|
||||
swan_file="libreswan-$SWAN_VER.tar.gz"
|
||||
swan_url1="https://github.com/libreswan/libreswan/archive/v$SWAN_VER.tar.gz"
|
||||
swan_url2="https://download.libreswan.org/$swan_file"
|
||||
if ! { wget -t 3 -T 30 -nv -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -nv -O "$swan_file" "$swan_url2"; }; then
|
||||
exiterr "Cannot download Libreswan source."
|
||||
fi
|
||||
/bin/rm -rf "/opt/src/libreswan-$swan_ver"
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
tar xzf "$swan_file" && /bin/rm -f "$swan_file"
|
||||
cd "libreswan-$swan_ver" || exiterr "Cannot enter Libreswan source dir."
|
||||
cd "libreswan-$SWAN_VER" || exiterr "Cannot enter Libreswan source dir."
|
||||
cat > Makefile.inc.local <<'EOF'
|
||||
WERROR_CFLAGS =
|
||||
USE_DNSSEC = false
|
||||
|
|
@ -211,9 +203,9 @@ make "-j$((NPROCS+1))" -s base && make -s install-base
|
|||
|
||||
# Verify the install and clean up
|
||||
cd /opt/src || exiterr "Cannot enter /opt/src."
|
||||
/bin/rm -rf "/opt/src/libreswan-$swan_ver"
|
||||
if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$swan_ver"; then
|
||||
exiterr "Libreswan $swan_ver failed to build."
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
|
||||
exiterr "Libreswan $SWAN_VER failed to build."
|
||||
fi
|
||||
|
||||
bigecho "Creating VPN configuration..."
|
||||
|
|
@ -329,8 +321,6 @@ EOF
|
|||
# Create VPN credentials
|
||||
conf_bk "/etc/ppp/chap-secrets"
|
||||
cat > /etc/ppp/chap-secrets <<EOF
|
||||
# Secrets for authentication using CHAP
|
||||
# client server secret IP addresses
|
||||
"$VPN_USER" l2tpd "$VPN_PASSWORD" *
|
||||
EOF
|
||||
|
||||
|
|
@ -392,7 +382,7 @@ fi
|
|||
# Add IPTables rules for VPN
|
||||
if [ "$ipt_flag" = "1" ]; then
|
||||
service fail2ban stop >/dev/null 2>&1
|
||||
iptables-save > "$IPT_FILE.old-$(date +%Y-%m-%d-%H:%M:%S)"
|
||||
iptables-save > "$IPT_FILE.old-$(date +%F-%T)"
|
||||
iptables -I INPUT 1 -p udp --dport 1701 -m policy --dir in --pol none -j DROP
|
||||
iptables -I INPUT 2 -m conntrack --ctstate INVALID -j DROP
|
||||
iptables -I INPUT 3 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
|
|
|
|||
|
|
@ -22,7 +22,7 @@
|
|||
# Define your own values for these variables
|
||||
# - IPsec pre-shared key, VPN username and password
|
||||
# - All values MUST be placed inside 'single quotes'
|
||||
# - DO NOT use these characters within values: \ " '
|
||||
# - DO NOT use these special characters within values: \ " '
|
||||
|
||||
YOUR_IPSEC_PSK=''
|
||||
YOUR_USERNAME=''
|
||||
|
|
@ -36,13 +36,13 @@ YOUR_PASSWORD=''
|
|||
export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
|
||||
|
||||
exiterr() { echo "Error: $1" >&2; exit 1; }
|
||||
exiterr2() { echo "Error: 'yum install' failed." >&2; exit 1; }
|
||||
conf_bk() { /bin/cp -f "$1" "$1.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null; }
|
||||
exiterr2() { exiterr "'yum install' failed."; }
|
||||
conf_bk() { /bin/cp -f "$1" "$1.old-$(date +%F-%T)" 2>/dev/null; }
|
||||
bigecho() { echo; echo "## $1"; echo; }
|
||||
|
||||
check_ip() {
|
||||
IP_REGEX='^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$'
|
||||
printf %s "$1" | tr -d '\n' | grep -Eq "$IP_REGEX"
|
||||
printf '%s' "$1" | tr -d '\n' | grep -Eq "$IP_REGEX"
|
||||
}
|
||||
|
||||
vpnsetup() {
|
||||
|
|
@ -52,9 +52,7 @@ if ! grep -qs -e "release 6" -e "release 7" /etc/redhat-release; then
|
|||
fi
|
||||
|
||||
if [ -f /proc/user_beancounters ]; then
|
||||
echo "Error: This script does not support OpenVZ VPS." >&2
|
||||
echo "Try OpenVPN: https://github.com/Nyr/openvpn-install" >&2
|
||||
exit 1
|
||||
exiterr "OpenVZ VPS is not supported. Try OpenVPN: github.com/Nyr/openvpn-install"
|
||||
fi
|
||||
|
||||
if [ "$(id -u)" != 0 ]; then
|
||||
|
|
@ -66,17 +64,11 @@ def_iface="$(route 2>/dev/null | grep '^default' | grep -o '[^ ]*$')"
|
|||
[ -z "$def_iface" ] && def_iface="$(ip -4 route list 0/0 2>/dev/null | grep -Po '(?<=dev )(\S+)')"
|
||||
|
||||
def_iface_state=$(cat "/sys/class/net/$def_iface/operstate" 2>/dev/null)
|
||||
if [ -z "$VPN_NET_IFACE" ] && [ -n "$def_iface_state" ] && [ "$def_iface_state" != "down" ]; then
|
||||
if [ -n "$def_iface_state" ] && [ "$def_iface_state" != "down" ]; then
|
||||
if ! grep -qs raspbian /etc/os-release; then
|
||||
case "$def_iface" in
|
||||
wl*)
|
||||
cat 1>&2 <<EOF
|
||||
Error: Default network interface '$def_iface' detected.
|
||||
>> DO NOT RUN THIS SCRIPT ON YOUR PC OR MAC! <<
|
||||
If you are certain that this script is running on a server, re-run it with:
|
||||
sudo VPN_NET_IFACE="$def_iface" sh "$0"
|
||||
EOF
|
||||
exit 1
|
||||
exiterr "Wireless interface '$def_iface' detected. DO NOT run this script on your PC or Mac!"
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
|
|
@ -88,9 +80,8 @@ if [ -z "$net_iface_state" ] || [ "$net_iface_state" = "down" ] || [ "$net_iface
|
|||
printf "Error: Network interface '%s' is not available.\n" "$net_iface" >&2
|
||||
if [ -z "$VPN_NET_IFACE" ]; then
|
||||
cat 1>&2 <<EOF
|
||||
Unable to detect your server's default network interface.
|
||||
You may manually re-run this script with:
|
||||
sudo VPN_NET_IFACE="your_default_network_interface" sh "$0"
|
||||
Unable to detect the default network interface. Manually re-run this script with:
|
||||
sudo VPN_NET_IFACE="your_default_interface_name" sh "$0"
|
||||
EOF
|
||||
fi
|
||||
exit 1
|
||||
|
|
@ -111,13 +102,13 @@ if [ -z "$VPN_IPSEC_PSK" ] || [ -z "$VPN_USER" ] || [ -z "$VPN_PASSWORD" ]; then
|
|||
exiterr "All VPN credentials must be specified. Edit the script and re-enter them."
|
||||
fi
|
||||
|
||||
if printf %s "$VPN_IPSEC_PSK $VPN_USER $VPN_PASSWORD" | LC_ALL=C grep -q '[^ -~]\+'; then
|
||||
if printf '%s' "$VPN_IPSEC_PSK $VPN_USER $VPN_PASSWORD" | LC_ALL=C grep -q '[^ -~]\+'; then
|
||||
exiterr "VPN credentials must not contain non-ASCII characters."
|
||||
fi
|
||||
|
||||
case "$VPN_IPSEC_PSK $VPN_USER $VPN_PASSWORD" in
|
||||
*[\\\"\']*)
|
||||
exiterr "VPN credentials must not contain the following characters: \\ \" '"
|
||||
exiterr "VPN credentials must not contain these special characters: \\ \" '"
|
||||
;;
|
||||
esac
|
||||
|
||||
|
|
@ -129,14 +120,14 @@ cd /opt/src || exiterr "Cannot enter /opt/src."
|
|||
|
||||
bigecho "Installing packages required for setup..."
|
||||
|
||||
yum -y install wget bind-utils openssl || exiterr2
|
||||
yum -y install iproute gawk grep sed net-tools || exiterr2
|
||||
yum -y install wget bind-utils openssl \
|
||||
iproute gawk grep sed net-tools || exiterr2
|
||||
|
||||
bigecho "Trying to auto discover IP of this server..."
|
||||
|
||||
cat <<'EOF'
|
||||
In case the script hangs here for more than a few minutes,
|
||||
use Ctrl-C to interrupt. Then edit it and manually enter IP.
|
||||
press Ctrl-C to abort. Then edit it and manually enter IP.
|
||||
EOF
|
||||
|
||||
# In case auto IP discovery fails, enter server's public IP here.
|
||||
|
|
@ -147,7 +138,7 @@ PUBLIC_IP=${VPN_PUBLIC_IP:-''}
|
|||
|
||||
# Check IP for correct format
|
||||
check_ip "$PUBLIC_IP" || PUBLIC_IP=$(wget -t 3 -T 15 -qO- http://ipv4.icanhazip.com)
|
||||
check_ip "$PUBLIC_IP" || exiterr "Cannot find valid public IP. Edit the script and manually enter it."
|
||||
check_ip "$PUBLIC_IP" || exiterr "Cannot detect this server's public IP. Edit the script and manually enter it."
|
||||
|
||||
bigecho "Adding the EPEL repository..."
|
||||
|
||||
|
|
@ -156,17 +147,15 @@ yum -y install epel-release || exiterr2
|
|||
bigecho "Installing packages required for the VPN..."
|
||||
|
||||
yum -y install nss-devel nspr-devel pkgconfig pam-devel \
|
||||
libcap-ng-devel libselinux-devel \
|
||||
curl-devel flex bison gcc make \
|
||||
fipscheck-devel || exiterr2
|
||||
yum -y install ppp xl2tpd || exiterr2
|
||||
libcap-ng-devel libselinux-devel curl-devel \
|
||||
flex bison gcc make fipscheck-devel \
|
||||
ppp xl2tpd || exiterr2
|
||||
|
||||
if grep -qs "release 6" /etc/redhat-release; then
|
||||
yum -y remove libevent-devel
|
||||
yum -y install libevent2-devel || exiterr2
|
||||
else
|
||||
yum -y install libevent-devel systemd-devel || exiterr2
|
||||
yum -y install iptables-services || exiterr2
|
||||
yum -y install libevent-devel systemd-devel iptables-services || exiterr2
|
||||
fi
|
||||
|
||||
bigecho "Installing Fail2Ban to protect SSH..."
|
||||
|
|
@ -175,16 +164,16 @@ yum -y install fail2ban || exiterr2
|
|||
|
||||
bigecho "Compiling and installing Libreswan..."
|
||||
|
||||
swan_ver=3.22
|
||||
swan_file="libreswan-$swan_ver.tar.gz"
|
||||
swan_url1="https://github.com/libreswan/libreswan/archive/v$swan_ver.tar.gz"
|
||||
SWAN_VER=3.22
|
||||
swan_file="libreswan-$SWAN_VER.tar.gz"
|
||||
swan_url1="https://github.com/libreswan/libreswan/archive/v$SWAN_VER.tar.gz"
|
||||
swan_url2="https://download.libreswan.org/$swan_file"
|
||||
if ! { wget -t 3 -T 30 -nv -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -nv -O "$swan_file" "$swan_url2"; }; then
|
||||
exiterr "Cannot download Libreswan source."
|
||||
fi
|
||||
/bin/rm -rf "/opt/src/libreswan-$swan_ver"
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
tar xzf "$swan_file" && /bin/rm -f "$swan_file"
|
||||
cd "libreswan-$swan_ver" || exiterr "Cannot enter Libreswan source dir."
|
||||
cd "libreswan-$SWAN_VER" || exiterr "Cannot enter Libreswan source dir."
|
||||
cat > Makefile.inc.local <<'EOF'
|
||||
WERROR_CFLAGS =
|
||||
USE_DNSSEC = false
|
||||
|
|
@ -195,9 +184,9 @@ make "-j$((NPROCS+1))" -s base && make -s install-base
|
|||
|
||||
# Verify the install and clean up
|
||||
cd /opt/src || exiterr "Cannot enter /opt/src."
|
||||
/bin/rm -rf "/opt/src/libreswan-$swan_ver"
|
||||
if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$swan_ver"; then
|
||||
exiterr "Libreswan $swan_ver failed to build."
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
|
||||
exiterr "Libreswan $SWAN_VER failed to build."
|
||||
fi
|
||||
|
||||
bigecho "Creating VPN configuration..."
|
||||
|
|
@ -307,8 +296,6 @@ EOF
|
|||
# Create VPN credentials
|
||||
conf_bk "/etc/ppp/chap-secrets"
|
||||
cat > /etc/ppp/chap-secrets <<EOF
|
||||
# Secrets for authentication using CHAP
|
||||
# client server secret IP addresses
|
||||
"$VPN_USER" l2tpd "$VPN_PASSWORD" *
|
||||
EOF
|
||||
|
||||
|
|
@ -370,7 +357,7 @@ fi
|
|||
# Add IPTables rules for VPN
|
||||
if [ "$ipt_flag" = "1" ]; then
|
||||
service fail2ban stop >/dev/null 2>&1
|
||||
iptables-save > "$IPT_FILE.old-$(date +%Y-%m-%d-%H:%M:%S)"
|
||||
iptables-save > "$IPT_FILE.old-$(date +%F-%T)"
|
||||
iptables -I INPUT 1 -p udp --dport 1701 -m policy --dir in --pol none -j DROP
|
||||
iptables -I INPUT 2 -m conntrack --ctstate INVALID -j DROP
|
||||
iptables -I INPUT 3 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
|
|
@ -448,8 +435,7 @@ chmod 600 /etc/ipsec.secrets* /etc/ppp/chap-secrets* /etc/ipsec.d/passwd*
|
|||
# Apply new IPTables rules
|
||||
iptables-restore < "$IPT_FILE"
|
||||
|
||||
# Fix xl2tpd on CentOS 7 for providers such as Linode,
|
||||
# where kernel module "l2tp_ppp" is unavailable
|
||||
# Fix xl2tpd on CentOS 7, if kernel module "l2tp_ppp" is unavailable
|
||||
if grep -qs "release 7" /etc/redhat-release; then
|
||||
if ! modprobe -q l2tp_ppp; then
|
||||
sed -i '/ExecStartPre/s/^/#/' /usr/lib/systemd/system/xl2tpd.service
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user