diff --git a/README-zh.md b/README-zh.md index aa33857..1bd9c08 100644 --- a/README-zh.md +++ b/README-zh.md @@ -159,7 +159,7 @@ VPN_PASSWORD='你的VPN密码' sh vpnsetup.sh ## 升级Libreswan -提供两个额外的脚本 vpnupgrade.sh 和 vpnupgrade_centos.sh，可用于升级 Libreswan （更新日志 | 通知列表）。请在运行前根据需要修改 `swan_ver` 变量。查看已安装版本： `ipsec --version`. +提供两个额外的脚本 vpnupgrade.sh 和 vpnupgrade_centos.sh，可用于升级 Libreswan （更新日志 | 通知列表）。请在运行前根据需要修改 `SWAN_VER` 变量。查看已安装版本： `ipsec --version`. ```bash # Ubuntu & Debian diff --git a/README.md b/README.md index fb7c7e5..37eecff 100644 --- a/README.md +++ b/README.md @@ -106,7 +106,7 @@ sudo sh vpnsetup.sh ```bash # All values MUST be placed inside 'single quotes' -# DO NOT use these characters within values: \ " ' +# DO NOT use these special characters within values: \ " ' wget https://git.io/vpnsetup -O vpnsetup.sh && sudo \ VPN_IPSEC_PSK='your_ipsec_pre_shared_key' \ VPN_USER='your_vpn_username' \ @@ -159,7 +159,7 @@ The scripts will backup existing config files before making changes, with `.old- ## Upgrade Libreswan -The additional scripts vpnupgrade.sh and vpnupgrade_centos.sh can be used to upgrade Libreswan (changelog | announce). Edit the `swan_ver` variable as necessary. Check which version is installed: `ipsec --version`. +The additional scripts vpnupgrade.sh and vpnupgrade_centos.sh can be used to upgrade Libreswan (changelog | announce). Edit the `SWAN_VER` variable as necessary. Check which version is installed: `ipsec --version`. ```bash # Ubuntu & Debian diff --git a/docs/manage-users.md b/docs/manage-users.md index cfd7bf4..c14dc53 100644 --- a/docs/manage-users.md +++ b/docs/manage-users.md @@ -18,7 +18,7 @@ For `IPsec/L2TP`, VPN users are specified in `/etc/ppp/chap-secrets`. The format ... ... ``` -You can add more users, use one line for each user. DO NOT use these characters within values: `\ " '` +You can add more users, use one line for each user. DO NOT use these special characters within values: `\ " '` For `IPsec/XAuth ("Cisco IPsec")`, VPN users are specified in `/etc/ipsec.d/passwd`. The format of this file is: diff --git a/extras/vpnupgrade.sh b/extras/vpnupgrade.sh index 65644b0..1a4616d 100644 --- a/extras/vpnupgrade.sh +++ b/extras/vpnupgrade.sh @@ -11,14 +11,14 @@ # know how you have improved it! # Check https://libreswan.org for the latest version -swan_ver=3.22 +SWAN_VER=3.22 ### DO NOT edit below this line ### export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" exiterr() { echo "Error: $1" >&2; exit 1; } -exiterr2() { echo "Error: 'apt-get install' failed." >&2; exit 1; } +exiterr2() { exiterr "'apt-get install' failed."; } vpnupgrade() { @@ -27,31 +27,31 @@ if [ -z "$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 [ "$(sed 's/\..*//' /etc/debian_version)" = "7" ]; then - exiterr "This script does not support Debian 7 (Wheezy)." + exiterr "Debian 7 is not supported." fi if [ -f /proc/user_beancounters ]; then - exiterr "This script does not support OpenVZ VPS." + exiterr "OpenVZ VPS is not supported." fi if [ "$(id -u)" != 0 ]; then exiterr "Script must be run as root. Try 'sudo sh $0'" fi -if [ -z "$swan_ver" ]; then - exiterr "Libreswan version 'swan_ver' not specified." +if [ -z "$SWAN_VER" ]; then + exiterr "Libreswan version 'SWAN_VER' not specified." fi if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -q "Libreswan"; then exiterr "This script requires Libreswan already installed." fi -if [ "$swan_ver" = "3.22" ]; then +if [ "$SWAN_VER" = "3.22" ]; then if grep -qs raspbian /etc/os-release; then echo "Note: For Raspberry Pi systems, this script will install Libreswan" echo "version 3.21 instead of 3.22, to avoid some recent bugs." @@ -61,7 +61,7 @@ if [ "$swan_ver" = "3.22" ]; then case $response in [yY][eE][sS]|[yY]) echo - swan_ver=3.21 + SWAN_VER=3.21 ;; *) echo "Aborting." @@ -71,8 +71,8 @@ if [ "$swan_ver" = "3.22" ]; then fi fi -if /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$swan_ver"; then - echo "You already have Libreswan version $swan_ver installed! " +if /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then + echo "You already have Libreswan version $SWAN_VER installed! " echo "If you continue, the same version will be re-installed." echo printf "Do you wish to continue anyway? [y/N] " @@ -91,7 +91,7 @@ fi clear cat < Makefile.inc.local <<'EOF' WERROR_CFLAGS = USE_DNSSEC = false @@ -174,15 +174,15 @@ make "-j$((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 $SWAN_VER failed to build." fi # Update ipsec.conf for Libreswan 3.19 and newer IKE_NEW=" ike=3des-sha1,3des-sha2,aes-sha1,aes-sha1;modp1024,aes-sha2,aes-sha2;modp1024,aes256-sha2_512" PHASE2_NEW=" phase2alg=3des-sha1,3des-sha2,aes-sha1,aes-sha2,aes256-sha2_512" -sed -i".old-$(date +%Y-%m-%d-%H:%M:%S)" \ +sed -i".old-$(date +%F-%T)" \ -e "s/^[[:space:]]\+auth=esp\$/ phase2=esp/" \ -e "s/^[[:space:]]\+forceencaps=yes\$/ encapsulation=yes/" \ -e "s/^[[:space:]]\+ike=.\+\$/$IKE_NEW/" \ @@ -192,7 +192,7 @@ sed -i".old-$(date +%Y-%m-%d-%H:%M:%S)" \ service ipsec restart echo -echo "Libreswan $swan_ver was installed successfully! " +echo "Libreswan $SWAN_VER was installed successfully! " echo } diff --git a/extras/vpnupgrade_centos.sh b/extras/vpnupgrade_centos.sh index f4f607a..f7337ff 100644 --- a/extras/vpnupgrade_centos.sh +++ b/extras/vpnupgrade_centos.sh @@ -11,14 +11,14 @@ # know how you have improved it! # Check https://libreswan.org for the latest version -swan_ver=3.22 +SWAN_VER=3.22 ### DO NOT edit below this line ### export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" exiterr() { echo "Error: $1" >&2; exit 1; } -exiterr2() { echo "Error: 'yum install' failed." >&2; exit 1; } +exiterr2() { exiterr "'yum install' failed."; } vpnupgrade() { @@ -27,23 +27,23 @@ if ! grep -qs -e "release 6" -e "release 7" /etc/redhat-release; then fi if [ -f /proc/user_beancounters ]; then - exiterr "This script does not support OpenVZ VPS." + exiterr "OpenVZ VPS is not supported." fi if [ "$(id -u)" != 0 ]; then exiterr "Script must be run as root. Try 'sudo sh $0'" fi -if [ -z "$swan_ver" ]; then - exiterr "Libreswan version 'swan_ver' not specified." +if [ -z "$SWAN_VER" ]; then + exiterr "Libreswan version 'SWAN_VER' not specified." fi if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -q "Libreswan"; then exiterr "This script requires Libreswan already installed." fi -if /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$swan_ver"; then - echo "You already have Libreswan version $swan_ver installed! " +if /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then + echo "You already have Libreswan version $SWAN_VER installed! " echo "If you continue, the same version will be re-installed." echo printf "Do you wish to continue anyway? [y/N] " @@ -62,7 +62,7 @@ fi clear cat < Makefile.inc.local <<'EOF' WERROR_CFLAGS = USE_DNSSEC = false @@ -151,9 +149,9 @@ make "-j$((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 $SWAN_VER failed to build." fi # Restore SELinux contexts @@ -164,7 +162,7 @@ restorecon /usr/local/libexec/ipsec -Rv 2>/dev/null # Update ipsec.conf for Libreswan 3.19 and newer IKE_NEW=" ike=3des-sha1,3des-sha2,aes-sha1,aes-sha1;modp1024,aes-sha2,aes-sha2;modp1024,aes256-sha2_512" PHASE2_NEW=" phase2alg=3des-sha1,3des-sha2,aes-sha1,aes-sha2,aes256-sha2_512" -sed -i".old-$(date +%Y-%m-%d-%H:%M:%S)" \ +sed -i".old-$(date +%F-%T)" \ -e "s/^[[:space:]]\+auth=esp\$/ phase2=esp/" \ -e "s/^[[:space:]]\+forceencaps=yes\$/ encapsulation=yes/" \ -e "s/^[[:space:]]\+ike=.\+\$/$IKE_NEW/" \ @@ -174,7 +172,7 @@ sed -i".old-$(date +%Y-%m-%d-%H:%M:%S)" \ service ipsec restart echo -echo "Libreswan $swan_ver was installed successfully! " +echo "Libreswan $SWAN_VER was installed successfully! " echo } diff --git a/vpnsetup.sh b/vpnsetup.sh index 90f21e4..b76df8a 100755 --- a/vpnsetup.sh +++ b/vpnsetup.sh @@ -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: 'apt-get 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 "'apt-get 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() { @@ -52,18 +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 "$def_iface" in wl*) -cat 1>&2 <> DO NOT RUN THIS SCRIPT ON YOUR PC OR MAC! << -If you are certain that this script is running on a server, re-run it with: - sudo VPN_NET_IFACE="$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 "$VPN_NET_IFACE" ]; then cat 1>&2 </dev/null 2>&1; do [ "$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 $SWAN_VER failed to build." fi bigecho "Creating VPN configuration..." @@ -329,8 +321,6 @@ EOF # Create VPN credentials conf_bk "/etc/ppp/chap-secrets" cat > /etc/ppp/chap-secrets </dev/null 2>&1 - iptables-save > "$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 diff --git a/vpnsetup_centos.sh b/vpnsetup_centos.sh index bc8405d..1827d07 100755 --- a/vpnsetup_centos.sh +++ b/vpnsetup_centos.sh @@ -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 "$def_iface" in wl*) -cat 1>&2 <> DO NOT RUN THIS SCRIPT ON YOUR PC OR MAC! << -If you are certain that this script is running on a server, re-run it with: - sudo VPN_NET_IFACE="$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 "$VPN_NET_IFACE" ]; then cat 1>&2 < Makefile.inc.local <<'EOF' WERROR_CFLAGS = USE_DNSSEC = false @@ -195,9 +184,9 @@ make "-j$((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 $SWAN_VER failed to build." fi bigecho "Creating VPN configuration..." @@ -307,8 +296,6 @@ EOF # Create VPN credentials conf_bk "/etc/ppp/chap-secrets" cat > /etc/ppp/chap-secrets </dev/null 2>&1 - iptables-save > "$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