diff --git a/docs/images/script-demo.svg b/docs/images/script-demo.svg
index 01f45b0..94fdc9a 100644
--- a/docs/images/script-demo.svg
+++ b/docs/images/script-demo.svg
@@ -1 +1 @@
-
+##CreatingVPNconfiguration...##VPNcredentialsnotsetbyuser.GeneratingrandomPSKandpassword...##Installingpackagesrequiredforsetup...++apt-get+apt-get-yqq+apt-get-yqqupdate+apt-get-yqqinstall+apt-get-yqqinstallwgetdnsutilsopenssliptablesiproute2gawkgrepsednet-tools##TryingtoautodiscoverIPofthisserver...##InstallingpackagesrequiredfortheVPN...+apt-get-yqqinstalllibnss3-devlibnspr4-devpkg-configlibpam0g-devlibcap-ng-devlibcap-ng-utilslibselinux1-devlibcurl4-nss-devflexbisongccmakelibnss3-toolslibevent-devlibsystemd-devuuid-runtimepppxl2tpd##InstallingFail2BantoprotectSSH...+apt-get-yqqinstallfail2ban##DownloadingIKEv2script...+wget+wget-t+wget-t3+wget-t3-T+wget-t3-T30+wget-t3-T30-q+wget-t3-T30-q-O+wget-t3-T30-q-Oikev2.shhttps://github.com/hwdsl2/setup-ipsec-vpn/raw/master/extras/ikev2setup.sh##DownloadingLibreswan...+wget-t3-T30-q-Olibreswan-4.4.tar.gzhttps://github.com/libreswan/libreswan/archive/v4.4.tar.gz##CompilingandinstallingLibreswan,pleasewait...+make+make-j2-sbase+make-sinstall-base##VPNsetupinprogress...Pleasebepatient.##Updatingsysctlsettings...##UpdatingIPTablesrules...##Enablingservicesonboot...##Startingservices...================================================IPsecVPNserverisnowreadyforuse!ConnecttoyournewVPNwiththesedetails:ServerIP:192.0.2.1IPsecPSK:DEMO_ONLY_DO_NOT_USEUsername:vpnuserPassword:DEMO_ONLY_DO_NOT_USEWritethesedown.You'llneedthemtoconnect!Importantnotes:vpnsetup.net/notesSetupVPNclients:vpnsetup.net/clientsIKEv2guide:vpnsetup.net/ikev2##StartingIKEv2setupinautomode,usingdefaultoptions.IKEv2setupsuccessful.DetailsforIKEv2mode:VPNserveraddress:192.0.2.1VPNclientname:vpnclientClientconfigurationisavailableat:/root/vpnclient.p12(forWindows&Linux)/root/vpnclient.sswan(forAndroid)/root/vpnclient.mobileconfig(foriOS&macOS)*IMPORTANT*Passwordforclientconfigfiles:DEMO_ONLY_DO_NOT_USEWritethisdown,you'llneeditforimport!Nextsteps:ConfigureIKEv2VPNclients.See:https://vpnsetup.net/ikev2clients+apt-get-yqqinstallwget+apt-get-yqqinstallwgetdnsutils+apt-get-yqqinstallwgetdnsutilsopenssl+apt-get-yqqinstallwgetdnsutilsopenssliptables+apt-get-yqqinstallwgetdnsutilsopenssliptablesiproute2+apt-get-yqqinstallwgetdnsutilsopenssliptablesiproute2gawk+apt-get-yqqinstallwgetdnsutilsopenssliptablesiproute2gawkgrep+apt-get-yqqinstallwgetdnsutilsopenssliptablesiproute2gawkgrepsed+apt-get-yqqinstalllibnss3-dev+apt-get-yqqinstalllibnss3-devlibnspr4-dev+apt-get-yqqinstalllibnss3-devlibnspr4-devpkg-config+apt-get-yqqinstalllibnss3-devlibnspr4-devpkg-configlibpam0g-dev+apt-get-yqqinstalllibnss3-devlibnspr4-devpkg-configlibpam0g-devlibcap-ng-dev+apt-get-yqqinstalllibnss3-devlibnspr4-devpkg-configlibpam0g-devlibcap-ng-devlibcap-ng-utilsx1-devx1-devlibcurl4-nss-devx1-devlibcurl4-nss-devflexx1-devlibcurl4-nss-devflexbisonx1-devlibcurl4-nss-devflexbisongccx1-devlibcurl4-nss-devflexbisongccmakex1-devlibcurl4-nss-devflexbisongccmakelibnss3-toolsx1-devlibcurl4-nss-devflexbisongccmakelibnss3-toolslibevent-dev+wget-t3-T30-q-Oikev2.sh+wget-t3-T30-q-Olibreswan-4.4.tar.gz+make-j2+make-j2-s+make-s##CheckingforMOBIKEsupport...notavailable##GeneratingCAandservercertificates...##Generatingclientcertificate...##Creatingclientconfiguration...##AddinganewIKEv2connection...##RestartingIPsecservice...
diff --git a/extras/ikev2setup.sh b/extras/ikev2setup.sh
index c932348..0bf9e09 100755
--- a/extras/ikev2setup.sh
+++ b/extras/ikev2setup.sh
@@ -151,7 +151,7 @@ confirm_or_abort() {
show_header() {
cat <<'EOF'
-IKEv2 Script Copyright (c) 2020-2022 Lin Song 23 May 2022
+IKEv2 Script Copyright (c) 2020-2022 Lin Song 27 May 2022
EOF
}
@@ -1076,7 +1076,7 @@ create_config_readme() {
&& [ "$use_defaults" = "1" ] && [ ! -t 1 ] && [ ! -f "$readme_file" ]; then
cat > "$readme_file" <<'EOF'
These IKEv2 client config files were created during IPsec VPN setup.
-To configure IKEv2 clients, see: vpnsetup.net/ikev2clients
+To configure IKEv2 clients, see: https://vpnsetup.net/ikev2clients
EOF
if [ "$export_to_home_dir" = "1" ]; then
chown "$SUDO_USER:$SUDO_USER" "$readme_file"
@@ -1271,27 +1271,13 @@ EOF
cat <<'EOF'
Next steps: Configure IKEv2 clients. See:
-vpnsetup.net/ikev2clients
+https://vpnsetup.net/ikev2clients
================================================
EOF
}
-show_optional_note() {
- if [ "$os_type" = "ubuntu" ] || [ "$os_type" = "debian" ] \
- || { [ "$os_type" = "centos" ] && [ "$os_ver" = "7" ]; }; then
-cat <