pfSense

Fix is_set/isset

(cherry picked from commit cb442cfa7406e561761a52c826c9c58e7a4ee2bc)

Make hostname optional for for DNS-O-Matic.
This resolves ticket #7601.

(cherry picked from commit 1ccc327f0014d74de501a066df556add28c38e78)

Add OpenVPN Keepalive/Ping/Inactive input validation. Fixes #3473

(cherry picked from commit 4a5875a1771d286aee1c1e90d7f45991f9892a68)

Hide OpenVPN 'interface' when multihome is selected. Fixes #7840

(cherry picked from commit 5a9dc1dc278c6c537bfd5289125607117ceb99df)

OpenVPN page sorting tweaks

(cherry picked from commit 41025f6094ed34406cdf23097656ea7cae4483ae)

OpenVPN status page sent/recv bytes sorting changes. Fixes #7359

(cherry picked from commit f467ea24cb3c3a98b370c2427ff1aa53d25f14a1)

Add copy action to OpenVPN pages. Implements #5851

Added to Server, Client, and Client-Specific Override pages

(cherry picked from commit d86c28bc833cdeb8eb90525d930ff81fa3738cc9)

Change interface disconnect/release button to 'danger'. Fixes #9911

While here, add the interface name to the button text.

Net effect is a confirmation box to ensure the user wants to take that
action, which could be disruptive.

(cherry picked from commit cca21e50e2f97afe09709249975b3adf331fcf9f)

Test DNS Hostnames separtely from GWs when storing new values. Fixes #9898

(cherry picked from commit 0d192133299b02efcb1db8f72bdce85a32a96631)

Fix #3743: Allow OpenVPN keepalive configuration

- Remove hardcoded 'keepalive 10 60' configuration
- Added 'inactive seconds' option
- Let user configure 'keepalive interval timeout'. It defaults to 10 60
as it was hardcoded until now
- Let user define ping and chose between ping-exit or ping-restart...