= General =

* [wiki:289-how-can-i-build-a-binary-rpm-package-for-my-specific-linux-platform How can I build a binary RPM package for my specific Linux platform?]
* [wiki:291-on-slackware-i-get-the-error-cipher-algorithm-bf-cbc-not-found-openssl On Slackware, I get the error: Cipher algorithm 'BF-CBC' not found (OpenSSL)]
* [wiki:293-what-is-the-principle-behind-openvpn-tunnels What is the principle behind OpenVPN tunnels?]
* [wiki:295-are-there-any-known-security-vulnerabilities-with-openvpn Are there any known security vulnerabilities with OpenVPN?]
* [wiki:297-is-it-important-to-openvpn-security-practices-to-build-an-intermediate-certificate-authoritykey Is it important to OpenVPN security practices to build an intermediate certificate authority/key?]
* [wiki:301-does-openvpn-support-certificate-revocation-lists-crls Does OpenVPN support Certificate Revocation Lists (CRLs)?]
* [wiki:303-how-stable-is-the-openvpn-protocol-ie-can-old-versions-of-openvpn-talk-to-new-versions How stable is the OpenVPN Protocol, i.e. can old versions of OpenVPN talk to new versions?]
* [wiki:305-what-is-the-difference-between-a-tun-device-and-a-tap-device What is the difference between a TUN device and a TAP device?]
* [wiki:307-what-is-bridging What is Bridging?]
* [wiki:309-what-is-the-difference-between-bridging-and-routing What is the difference between bridging and routing?]
* [wiki:311-what-are-the-fundamental-differences-between-bridging-and-routing-in-terms-of-configuration What are the fundamental differences between bridging and routing in terms of configuration?]
* [wiki:329-problems-with-tls Problems with TLS]
* [wiki:DoesOpenvpnSupportIpsecOrPptp Does OpenVPN support IPSec or PPTP?]
* [wiki:IsOpenvpnStandardsCompliant Is OpenVPN standards-compliant?]
* [wiki:CanOpenvpnTunnelOverATcpConnection Can OpenVPN tunnel over a TCP connection?]
* [wiki:CanIUseAWebBrowserAsAnOpenvpnClient Can I use a web browser as an OpenVPN client?]
* [wiki:WhyChooseTLSAsOpenvpnsUnderlyingAuthenticationAndKeyNegotiationProtocol Why choose TLS as OpenVPN's underlying authentication and key negotiation protocol?]
* [wiki:WhyMyOpenVPNTunnelDoesNot Why my OpenVPN tunnel does not work after resuming from sleep or hibernation on Windows?]

= Client =

* [wiki:247-i-am-having-problems-running-openvpn-with-the-windows-xp-firewall-enabled-whats-wrong I am having problems running OpenVPN with the Windows XP firewall enabled. What's wrong?]
* [wiki:249-upgraded-the-openvpn-daemon-on-one-side-of-the-connection-to-v20-and-now-it-cant-connect Upgraded the OpenVPN daemon on one side of the connection to v2.0, and now it can't connect.]
* [wiki:253-tls-error-tls-key-negotiation-failed-to-occur-within-60-seconds-check-your-network-connectivity TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)]
* [wiki:255-qconnection-initiated-with-xxxxq-but-i-cannot-ping-the-server-through-the-vpn "Connection Initiated with x.x.x.x" but I cannot ping the server through the VPN.] 
* [=#dhcpclientserv] [wiki:259-tap-win32-adapter-is-not-coming-up-qinitialization-sequence-completed-with-errorsq TAP-Win32 adapter is not coming up: "Initialization sequence completed with errors".] ![#dhcpclientserv]
* [wiki:267-i-am-having-trouble-getting-openvpn-1x-to-talk-with-openvpn-20 I am having trouble getting OpenVPN 1.x to talk with OpenVPN 2.0.]
* [wiki:275-why-cant-i-run-openvpn-on-windows-from-a-non-admin-user-account Why can't I run OpenVPN on Windows from a non-admin user account?]
* [wiki:277-i-uninstalled-openvpn-on-windows-2000-and-now-it-appears-that-winsock-is-broken-how-to-fix I uninstalled OpenVPN on Windows 2000 and now it appears that Winsock is broken. How to fix?]
* [wiki:279-are-there-any-issues-related-to-pushing-dhcp-options-to-windows-clients Are there any issues related to pushing DHCP options to Windows clients?]
* [wiki:281-what-to-do-if-the-installation-of-the-tap-win32-driver-fails What to do if the installation of the TAP-Win32 driver fails?]
* [wiki:283-can-i-run-multiple-openvpn-tunnels-on-a-single-machine Can I run multiple OpenVPN tunnels on a single machine?]
* [wiki:317-qmulti-bad-source-address-from-client--packet-droppedq-or-qget-inst-by-virt-failedq "MULTI: bad source address from client , packet dropped" or "GET INST BY VIRT: failed"?]
* [wiki:319-how-do-i-make-the-windows-network-adapter-my-default-adapter-again How do I make the windows network adapter my default adapter again?]
* [wiki:openvpn-gui-reinstall-to-different-path-breaks-it OpenVPN-GUI reinstall to different path breaks it]
* [wiki:OverridingAPushedRouteInTheClientsConfigThrowsAndError Overriding a pushed "route" in the client's config throws an error]

= Server =

* [wiki:265-how-do-i-enable-ip-forwarding How do I enable IP forwarding?]
* [wiki:287-is-ipv6-support-plannedin-the-works Is IPv6 supported?]
* [wiki:251-openvpn-server-successfully-connected-a-client-to-it-but-when-i-try-to-connect-a-second-client-the OpenVPN server successfully connected a client to it, but when I try to connect a second client, the]
* [wiki:257-can-an-openvpn-server-be-set-up-on-a-machine-with-a-single-nic Can an OpenVPN server be set up on a machine with a single NIC?]
* [wiki:261-when-i-try-configure-on-red-hat-9-linux-or-higher-it-complains-about-openssl-headers-not-found When I try ./configure on Red Hat 9 Linux or higher, it complains about OpenSSL headers not found.]
* [wiki:263-openvpn-can-ping-both-peers-but-i-cant-reach-any-of-the-other-machines-on-the-remote-subnet OpenVPN can ping both peers, but I can't reach any of the other machines on the remote subnet.]
* [wiki:269-tue-oct-26-143448-2004-36880-write-udpv4--no-buffer-space-available-code105 Tue Oct 26 14:34:48 2004 36880: write UDPv4: No buffer space available (code=105)]
* [wiki:271-i-can-ping-through-the-tunnel-but-any-real-work-causes-it-to-lock-up-is-this-an-mtu-problem I can ping through the tunnel, but any real work causes it to lock up. Is this an MTU problem?]
* [wiki:273-qifconfig-poolq-option-use-a-30-subnet-4-private-ip-addresses-per-client-when-used-in-tun-mode? "ifconfig-pool" option use a /30 subnet (4 private IP addresses per client) when used in TUN mode?]
* [wiki:285-everything-seems-to-be-configured-correctly-but-i-cant-ping-across-the-tunnel Everything seems to be configured correctly, but I can't ping across the tunnel.]
* [wiki:299-can-openvpn-handle-the-situation-where-both-ends-of-the-connection-are-dynamic Can OpenVPN handle the situation where both ends of the connection are dynamic?]
* [wiki:313-how-can-i-connect-windows-xp-to-a-linux-based-samba-server-using-routing-rather-than-bridging How can I connect Windows XP to a Linux-based Samba server using routing rather than bridging?]
* [wiki:315-i-get-the-error-cannot-ioctl-tunsetiff-tun0-file-descriptor-in-bad-state-errno77 I get the error Cannot ioctl TUNSETIFF tun0: File descriptor in bad state (errno=77)]
* [wiki:321-remap-local-addresses-to-connect-two-networks-with-an-overlap-in-the-private-address-range Remap local addresses, to connect two networks with an overlap in the private address range?]
* [wiki:323-i-want-to-set-up-an-ethernet-bridge-on-the-1921681024-subnet-existing-dhcp I want to set up an ethernet bridge on the 192.168.1.0/24 subnet. existing DHCP.]
* [wiki:325-openvpn-as-a--forking-tcp-server-which-can-service-multiple-clients-over-a-single-tcp-port OpenVPN as a , forking TCP server which can service multiple clients over a single TCP port?]
* [wiki:327-changed-hex-bytes-in-the-static-key-the-key-still-connects-to-a-remote-peer-using-the-original-key Changed hex bytes in the static key, the key still connects to a remote peer using the original key.]
* [wiki:328-route-and-route-ipv6-in-ccd-files why are --route and --route-ipv6 commands not possible in a ccd/ file?]

= Android =

* [http://code.google.com/p/ics-openvpn/wiki/FAQ OpenVPN for Android client FAQ]