Update docs

- Update links due to git.io deprecation.
  Ref: https://github.blog/changelog/2022-04-25-git-io-deprecation/

.github/workflows/check_urls.yml

@@ -34,6 +34,7 @@ jobs:
           gh="https://github.com/hwdsl2/setup-ipsec-vpn/raw/master"
           gl="https://gitlab.com/hwdsl2/setup-ipsec-vpn/-/raw/master"
           gi="https://git.io"
+          vn="https://get.vpnsetup.net"
 
           $wg vpnsetup.sh          "$gi/vpnsetup"
           $wg vpnsetup_centos.sh   "$gi/vpnsetup-centos"
@@ -52,13 +53,17 @@ jobs:
 
           $wg vpnsetup2.sh          "$gh/vpnsetup.sh"
           $wg vpnsetup3.sh          "$gl/vpnsetup.sh"
+          $wg vpnsetup4.sh          "$vn"
           $wg vpnsetup_centos2.sh   "$gh/vpnsetup_centos.sh"
           $wg vpnsetup_amzn2.sh     "$gh/vpnsetup_amzn.sh"
           $wg vpnsetup_ubuntu2.sh   "$gh/vpnsetup_ubuntu.sh"
           $wg vpnsetup_alpine2.sh   "$gh/vpnsetup_alpine.sh"
           $wg quickstart2.sh        "$gh/extras/quickstart.sh"
           $wg ikev2setup2.sh        "$gh/extras/ikev2setup.sh"
+          $wg ikev2setup3.sh        "$vn/ikev2"
           $wg vpnupgrade2.sh        "$gh/extras/vpnupgrade.sh"
+          $wg vpnupgrade3.sh        "$gl/extras/vpnupgrade.sh"
+          $wg vpnupgrade4.sh        "$vn/upg"
           $wg vpnupgrade_centos2.sh "$gh/extras/vpnupgrade_centos.sh"
           $wg vpnupgrade_amzn2.sh   "$gh/extras/vpnupgrade_amzn.sh"
           $wg vpnupgrade_ubuntu2.sh "$gh/extras/vpnupgrade_ubuntu.sh"
@@ -82,13 +87,17 @@ jobs:
 
           diff vpnsetup2.sh          ../vpnsetup.sh
           diff vpnsetup3.sh          ../vpnsetup.sh
+          diff vpnsetup4.sh          ../vpnsetup.sh
           diff vpnsetup_centos2.sh   ../vpnsetup_centos.sh
           diff vpnsetup_amzn2.sh     ../vpnsetup_amzn.sh
           diff vpnsetup_ubuntu2.sh   ../vpnsetup_ubuntu.sh
           diff vpnsetup_alpine2.sh   ../vpnsetup_alpine.sh
           diff quickstart2.sh        ../extras/quickstart.sh
           diff ikev2setup2.sh        ../extras/ikev2setup.sh
+          diff ikev2setup3.sh        ../extras/ikev2setup.sh
           diff vpnupgrade2.sh        ../extras/vpnupgrade.sh
+          diff vpnupgrade3.sh        ../extras/vpnupgrade.sh
+          diff vpnupgrade4.sh        ../extras/vpnupgrade.sh
           diff vpnupgrade_centos2.sh ../extras/vpnupgrade_centos.sh
           diff vpnupgrade_amzn2.sh   ../extras/vpnupgrade_amzn.sh
           diff vpnupgrade_ubuntu2.sh ../extras/vpnupgrade_ubuntu.sh
@@ -111,3 +120,4 @@ jobs:
           curl -fsSI "$bl/updatevpnusers"  | grep -q 'update_vpn_users.sh'
           curl -fsSI "$bl/ikev2onlymode"   | grep -q 'ikev2onlymode.sh'
           curl -fsSI "$bl/ikev2changeaddr" | grep -q 'ikev2changeaddr.sh'
+          curl -fsSI "$bl/vpnuninstall"    | grep -q 'vpnuninstall.sh'

README-zh.md

@@ -233,6 +233,8 @@ wget https://get.vpnsetup.net/upg -qO vpnup.sh && sudo sh vpnup.sh
 或者，你也可以使用以下命令。
 </summary>
 
+或者，你也可以使用这个链接：
+
 ```bash
 wget https://gitlab.com/hwdsl2/setup-ipsec-vpn/-/raw/master/extras/vpnupgrade.sh -qO vpnup.sh && sudo sh vpnup.sh
 ```

README.md

@@ -233,6 +233,8 @@ wget https://get.vpnsetup.net/upg -qO vpnup.sh && sudo sh vpnup.sh
 Alternative one-liner.
 </summary>
 
+Alternative update URL:
+
 ```bash
 wget https://gitlab.com/hwdsl2/setup-ipsec-vpn/-/raw/master/extras/vpnupgrade.sh -qO vpnup.sh && sudo sh vpnup.sh
 ```

extras/add_vpn_user.sh

@@ -90,8 +90,8 @@ Password: $VPN_PASSWORD
 
 Write these down. You'll need them to connect!
 
-Important notes:   https://git.io/vpnnotes
+Important notes:   vpnsetup.net/notes
-Setup VPN clients: https://git.io/vpnclients
+Setup VPN clients: vpnsetup.net/clients
 
 ================================================
 

extras/ikev2changeaddr.sh

@@ -104,7 +104,7 @@ check_ikev2() {
   if ! grep -qs "conn ikev2-cp" /etc/ipsec.d/ikev2.conf; then
 cat 1>&2 <<'EOF'
 Error: You must first set up IKEv2 before changing IKEv2 server address.
-       See: https://git.io/ikev2
+       See: vpnsetup.net/ikev2
 EOF
     exit 1
   fi

extras/ikev2onlymode.sh

@@ -59,7 +59,7 @@ EOF
   if ! check_ikev2_exists; then
 cat 1>&2 <<'EOF'
 Error: Your must first set up IKEv2 before selecting IKEv2-only mode.
-       See: https://git.io/ikev2
+       See: vpnsetup.net/ikev2
 EOF
     exit 1
   fi

extras/ikev2setup.sh

@@ -151,7 +151,7 @@ confirm_or_abort() {
 show_header() {
 cat <<'EOF'
 
-IKEv2 Script   Copyright (c) 2020-2022 Lin Song   28 Apr 2022
+IKEv2 Script   Copyright (c) 2020-2022 Lin Song   30 Apr 2022
 
 EOF
 }
@@ -175,7 +175,7 @@ Options:
   -h, --help                    show this help message and exit
 
 To customize IKEv2 or client options, run this script without arguments.
-For documentation, see: https://git.io/ikev2
+For documentation, see: vpnsetup.net/ikev2
 EOF
   exit 1
 }
@@ -1076,7 +1076,7 @@ create_config_readme() {
     && [ "$use_defaults" = "1" ] && [ ! -t 1 ] && [ ! -f "$readme_file" ]; then
 cat > "$readme_file" <<'EOF'
 These IKEv2 client config files were created during IPsec VPN setup.
-To configure IKEv2 clients, see: https://git.io/ikev2clients
+To configure IKEv2 clients, see: vpnsetup.net/ikev2clients
 EOF
     if [ "$export_to_home_dir" = "1" ]; then
       chown "$SUDO_USER:$SUDO_USER" "$readme_file"
@@ -1271,7 +1271,7 @@ EOF
 cat <<'EOF'
 
 Next steps: Configure IKEv2 clients. See:
-https://git.io/ikev2clients
+vpnsetup.net/ikev2clients
 
 ================================================
 
@@ -1299,7 +1299,7 @@ check_ipsec_conf() {
 cat 1>&2 <<EOF
 Error: IKEv2 configuration section found in $IPSEC_CONF.
        This script cannot automatically remove IKEv2 from this server.
-       To manually remove IKEv2, see https://git.io/ikev2
+       To manually remove IKEv2, see vpnsetup.net/ikev2
 EOF
     abort_and_exit
   fi

extras/quickstart.sh

@@ -27,9 +27,9 @@ YOUR_IPSEC_PSK=''
 YOUR_USERNAME=''
 YOUR_PASSWORD=''
 
-# Important notes:   https://git.io/vpnnotes
+# Important notes:   vpnsetup.net/notes
-# Setup VPN clients: https://git.io/vpnclients
+# Setup VPN clients: vpnsetup.net/clients
-# IKEv2 guide:       https://git.io/ikev2
+# IKEv2 guide:       vpnsetup.net/ikev2
 
 # =====================================================
 

extras/update_vpn_users.sh

@@ -53,7 +53,7 @@ EOF
   command -v openssl >/dev/null 2>&1 || exiterr "'openssl' not found. Abort."
   if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
 cat 1>&2 <<'EOF'
-For usage information, visit https://git.io/vpnnotes, then click on Manage VPN Users.
+For usage information, visit vpnsetup.net/notes, then click on Manage VPN Users.
 EOF
     exit 1
   fi
@@ -107,8 +107,8 @@ cat <<'EOF'
 
 Write these down. You'll need them to connect!
 
-Important notes:   https://git.io/vpnnotes
+Important notes:   vpnsetup.net/notes
-Setup VPN clients: https://git.io/vpnclients
+Setup VPN clients: vpnsetup.net/clients
 
 ==================================================
 

vpnsetup.sh

@@ -27,9 +27,9 @@ YOUR_IPSEC_PSK=''
 YOUR_USERNAME=''
 YOUR_PASSWORD=''
 
-# Important notes:   https://git.io/vpnnotes
+# Important notes:   vpnsetup.net/notes
-# Setup VPN clients: https://git.io/vpnclients
+# Setup VPN clients: vpnsetup.net/clients
-# IKEv2 guide:       https://git.io/ikev2
+# IKEv2 guide:       vpnsetup.net/ikev2
 
 # =====================================================
 

vpnsetup_alpine.sh

@@ -26,9 +26,9 @@ YOUR_IPSEC_PSK=''
 YOUR_USERNAME=''
 YOUR_PASSWORD=''
 
-# Important notes:   https://git.io/vpnnotes
+# Important notes:   vpnsetup.net/notes
-# Setup VPN clients: https://git.io/vpnclients
+# Setup VPN clients: vpnsetup.net/clients
-# IKEv2 guide:       https://git.io/ikev2
+# IKEv2 guide:       vpnsetup.net/ikev2
 
 # =====================================================
 
@@ -517,9 +517,9 @@ Password: $VPN_PASSWORD
 
 Write these down. You'll need them to connect!
 
-Important notes:   https://git.io/vpnnotes
+Important notes:   vpnsetup.net/notes
-Setup VPN clients: https://git.io/vpnclients
+Setup VPN clients: vpnsetup.net/clients
-IKEv2 guide:       https://git.io/ikev2
+IKEv2 guide:       vpnsetup.net/ikev2
 
 ================================================
 

vpnsetup_amzn.sh

@@ -26,9 +26,9 @@ YOUR_IPSEC_PSK=''
 YOUR_USERNAME=''
 YOUR_PASSWORD=''
 
-# Important notes:   https://git.io/vpnnotes
+# Important notes:   vpnsetup.net/notes
-# Setup VPN clients: https://git.io/vpnclients
+# Setup VPN clients: vpnsetup.net/clients
-# IKEv2 guide:       https://git.io/ikev2
+# IKEv2 guide:       vpnsetup.net/ikev2
 
 # =====================================================
 
@@ -533,9 +533,9 @@ Password: $VPN_PASSWORD
 
 Write these down. You'll need them to connect!
 
-Important notes:   https://git.io/vpnnotes
+Important notes:   vpnsetup.net/notes
-Setup VPN clients: https://git.io/vpnclients
+Setup VPN clients: vpnsetup.net/clients
-IKEv2 guide:       https://git.io/ikev2
+IKEv2 guide:       vpnsetup.net/ikev2
 
 ================================================
 

vpnsetup_centos.sh

@@ -28,9 +28,9 @@ YOUR_IPSEC_PSK=''
 YOUR_USERNAME=''
 YOUR_PASSWORD=''
 
-# Important notes:   https://git.io/vpnnotes
+# Important notes:   vpnsetup.net/notes
-# Setup VPN clients: https://git.io/vpnclients
+# Setup VPN clients: vpnsetup.net/clients
-# IKEv2 guide:       https://git.io/ikev2
+# IKEv2 guide:       vpnsetup.net/ikev2
 
 # =====================================================
 
@@ -660,9 +660,9 @@ Password: $VPN_PASSWORD
 
 Write these down. You'll need them to connect!
 
-Important notes:   https://git.io/vpnnotes
+Important notes:   vpnsetup.net/notes
-Setup VPN clients: https://git.io/vpnclients
+Setup VPN clients: vpnsetup.net/clients
-IKEv2 guide:       https://git.io/ikev2
+IKEv2 guide:       vpnsetup.net/ikev2
 
 ================================================
 

vpnsetup_ubuntu.sh

@@ -27,9 +27,9 @@ YOUR_IPSEC_PSK=''
 YOUR_USERNAME=''
 YOUR_PASSWORD=''
 
-# Important notes:   https://git.io/vpnnotes
+# Important notes:   vpnsetup.net/notes
-# Setup VPN clients: https://git.io/vpnclients
+# Setup VPN clients: vpnsetup.net/clients
-# IKEv2 guide:       https://git.io/ikev2
+# IKEv2 guide:       vpnsetup.net/ikev2
 
 # =====================================================
 
@@ -624,9 +624,9 @@ Password: $VPN_PASSWORD
 
 Write these down. You'll need them to connect!
 
-Important notes:   https://git.io/vpnnotes
+Important notes:   vpnsetup.net/notes
-Setup VPN clients: https://git.io/vpnclients
+Setup VPN clients: vpnsetup.net/clients
-IKEv2 guide:       https://git.io/ikev2
+IKEv2 guide:       vpnsetup.net/ikev2
 
 ================================================
 
@@ -634,8 +634,8 @@ EOF
   if [ ! -e /dev/ppp ]; then
 cat <<'EOF'
 Warning: /dev/ppp is missing, and IPsec/L2TP mode may not work. Please use
-         IKEv2 (https://git.io/ikev2) or IPsec/XAuth mode to connect.
+         IKEv2 (vpnsetup.net/ikev2) or IPsec/XAuth mode to connect.
-         Debian 11/10 users, see https://git.io/vpndebian10
+         Debian 11/10 users, see vpnsetup.net/debian10
 
 EOF
   fi