Move FAQ from wiki to git to allow contributions (#611)

Signed-off-by: Stanislas Lange <angristan@pm.me>

.github/ISSUE_TEMPLATE.md

@@ -7,7 +7,7 @@ Before opening an issue, please make sure:
 - Your issue is about the script, NOT OpenVPN itself
 - ⚠ PLEASE Post your OpenVPN version and OS for both the server and the client if needed
 
-FYI, you can excute the script with `bash -x openvpn-install.sh` to enable debug mode.
+FYI, you can execute the script with `bash -x openvpn-install.sh` to enable debug mode.
 
 You can format your comments with Markdown: https://guides.github.com/features/mastering-markdown/
 --->

FAQ.md

@@ -0,0 +1,47 @@
+# FAQ
+
+**Q:** The script has been updated since I installed OpenVPN. How do I update?
+
+**A:** You can't. Managing updates and new features from the script would require way too much work. Your only solution is to uninstall OpenVPN and reinstall with the updated script.
+
+You can, of course, it's even recommended, update the `openvpn` package with your package manager.
+
+---
+
+**Q:** How do I check for DNS leaks?
+
+**A:** Go to [dnsleaktest.com](https://dnsleaktest.com/) or [ipleak.net](https://ipleak.net/) with your browser. Only your server's IP should show up.
+
+---
+
+**Q:** Can I use an OpenVPN 2.3 client?
+
+**A:** Yes. I really recommend using an up-to-date client, but if you really need it, choose the following options:
+
+- No compression or LZ0
+- RSA certificate
+- DH Key
+- AES CBC
+- tls-auth
+
+If your client is <2.3.3, remove `tls-version-min 1.2` from your `/etc/openvpn/server.conf` and `.ovpn` files.
+
+---
+
+**Q:** IPv6 is not working on my Hetzner VM
+
+**A:** This an issue on their side. See https://angristan.xyz/fix-ipv6-hetzner-cloud/
+
+---
+
+**Q:** DNS is not working on my Linux client
+
+**A:** Make sure the `resolvconf` package is installed. If it does not solve the issue, look at https://wiki.archlinux.org/index.php/OpenVPN#Update_systemd-resolved_script
+
+---
+
+**Q:** How to setup openVPN in a LXC container? (f.e. Proxmox)
+
+**A:** See https://github.com/Nyr/openvpn-install/wiki/How-to-setup-openVPN-in-a-LXC-container-(f.e.-Proxmox)
+
+---

README.md

@@ -136,9 +136,7 @@ Since 2016, the two scripts have diverged and are not alike anymore, especially
 
 ## FAQ
 
-**LOOK AT THE [WIKI](https://github.com/angristan/openvpn-install/wiki/FAQ) FOR MORE INFORMATION. PLEASE READ BOTH BEFORE OPENING AN ISSUE.**
+More Q&A in [FAQ.md](FAQ.md).
-
-**PLEASE do net send me emails or private messages asking for help.** The only place to get help is the issues. Other people may be able to help and in the future, other users may also run into the same issue as you.
 
 **Q:** Which provider do you recommend?
 
@@ -174,6 +172,8 @@ Since 2016, the two scripts have diverged and are not alike anymore, especially
 
 ---
 
+More Q&A in [FAQ.md](FAQ.md).
+
 ##  One-stop solutions for public cloud
 
 Solutions that provision a ready to use OpenVPN server based on this script in one go are available for: