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Public Access
Adds docs/USER_GUIDE.md, a 10-section end-user guide (getting started, managing/organizing profiles, SSH and RDP connections, session management, settings, troubleshooting). It's embedded into the app binary via a Qt resource file and rendered by a new Help -> User Guide window: a topic sidebar plus content pane, not a single scrolling document, with cross-reference links between sections routed to sidebar selection rather than relying on Qt's Markdown importer's lack of heading anchors. A separate, non-shipped tool (tools/user-guide-pdf/) renders the same source to a standalone PDF via QTextDocument + QPrinter, wrapped by packaging/docs/build-user-guide-pdf.sh. Kept fully outside the main CMake target so Qt6::PrintSupport never becomes a runtime dependency of the shipped app (confirmed via ldd). The PDF itself isn't committed -- generated per release like the platform installers. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
231 lines
11 KiB
Markdown
231 lines
11 KiB
Markdown
## Introduction
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OrbitHub is a native desktop application for organizing connection profiles
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and launching SSH and RDP sessions from one place, in a single tabbed
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window. It runs on Windows, Linux, and macOS.
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This guide covers everyday use: creating and organizing profiles,
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connecting over SSH and RDP, managing active sessions, and what to do when
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something goes wrong. It does not cover installation or building from
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source — see the project's `README.md` and `docs/BUILDING.md` for that.
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VNC support is planned but not yet implemented; profiles can be tagged for
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it, but connecting will show an "unsupported protocol" message for now.
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## Getting Started
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When OrbitHub opens, you land on the **Profiles** tab — a searchable,
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sortable list of every connection you've saved. Two toolbar controls in
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the top-right change how that list is presented:
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- **View**: `List` shows every profile in one flat table; `Folders` groups
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them into the folder tree you've organized them into.
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- **Sort**: orders the list by Name, Protocol, or Host.
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Along the top of the window, a **Search** box filters by name, host,
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folder path, or tag as you type, and **Protocol**/**Tag** dropdowns narrow
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the list further. These filters, plus your last view mode and sort order,
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are remembered the next time you open OrbitHub.
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Along the bottom of the Profiles tab: **New**, **Edit**, and **Delete**
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buttons for managing the selected profile. The same actions are available
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by right-clicking a profile or folder, and from the **File** menu (`New
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Profile`, `New Folder`).
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To connect, double-click a profile, or select it and press the connect
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control — this opens a new tab for that session and connects
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automatically.
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## Managing Profiles
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A profile stores everything needed to reach one remote host. Open **New**
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(or **Edit** on an existing profile) to fill in:
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- **Name** — a label for the profile; shown on its tab and in the list.
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- **Host** — hostname or IP address.
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- **Port** — defaults to `22` for SSH, `3389` for RDP.
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- **Username** — the account to log in as.
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- **Domain** — Windows domain for RDP logins (leave blank for local/
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workgroup accounts or SSH profiles).
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- **Tags** — free-form, comma-separated labels for filtering and grouping
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(e.g. `prod, linux, db`).
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- **Folder** — where the profile lives in the Folders view.
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- **Protocol** — `SSH`, `RDP`, or `VNC` (VNC is accepted but not yet
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connectable — see Introduction).
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Fields below Protocol change based on what you pick:
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**SSH**: **Auth Mode** (`Password` or `Private Key`), and if Private Key,
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a **Private Key** file path with a **Browse** button, plus **Known Hosts**
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policy — see [Connecting via SSH](#connecting-via-ssh) for what each
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policy means.
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**RDP**: **RDP Security** and **RDP Performance** — see
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[Connecting via RDP](#connecting-via-rdp).
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Passwords are never saved in the profile — OrbitHub asks for them each
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time you connect (unless you've set up private-key SSH auth, which needs
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no password to be entered per-connection if the key itself has none).
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## Organizing Profiles
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As your profile list grows, two independent tools keep it manageable:
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**Folders.** Switch the Profiles tab to `Folders` view to see profiles
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grouped into a tree. Create a folder from the **File** menu or by
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right-clicking in the tree (`New Folder`), and drag any profile onto a
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folder to move it there. Folders can nest inside other folders.
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**Tags.** Tags are independent of folders — a profile can be in one folder
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but carry several tags (e.g. `prod`, `linux`, `db` all at once). Use the
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**Tag** filter dropdown in the toolbar to instantly narrow the list to
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everything sharing a tag, regardless of which folder it's filed under.
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Combine both with the **Search** box (matches name, host, folder path, or
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tags) and the **Sort** control (Name / Protocol / Host) to find what you
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need quickly even with a large profile list.
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## Connecting via SSH
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Double-clicking an SSH profile opens a new tab with an embedded, fully
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interactive terminal — type directly into it as you would any terminal
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emulator. A **theme** selector lets you switch between `Dark`, `Light`,
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and `Solarized Dark`; your choice is remembered for future sessions.
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**Authentication.** Set in the profile itself:
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- **Password** — OrbitHub prompts for a password each time you connect.
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It is never stored.
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- **Private Key** — point at a key file (via the profile's Browse button);
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no password prompt unless the key itself is passphrase-protected.
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**Known Hosts policy.** This controls how OrbitHub reacts to a server's
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SSH host key — the mechanism that protects against a different machine
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silently impersonating a host you've connected to before:
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| Policy | Behavior |
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| `Ask` | Prompts you to confirm trust the first time a host is seen, and on any later change. Recommended default. |
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| `Accept-new` | Silently trusts a host the first time it's seen, but still stops and warns if a previously-trusted host's key later changes. |
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| `Strict` | Never trusts an unknown host automatically — the connection fails until you've manually confirmed the host key some other way. |
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| `Ignore` | Skips host-key checking entirely. Only use this for throwaway/test environments — it removes protection against on-path attacks. |
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Trusted host keys are recorded in your system's normal SSH `known_hosts`
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file (the same one the `ssh` command line tool uses), so trust decisions
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made through OrbitHub or a terminal `ssh` session carry over to each
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other.
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## Connecting via RDP
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RDP sessions render in an embedded display surface inside the tab — no
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external RDP client window opens. Keyboard and mouse input go straight to
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the remote desktop while the tab has focus, and resizing the OrbitHub
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window renegotiates the remote resolution to match. Clipboard content
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syncs between your machine and the remote session automatically.
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**Authentication** uses the profile's Username/Domain fields; OrbitHub
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prompts for the password at connect time.
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**RDP Security** controls which transport-security layer is used to
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negotiate the connection:
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| Mode | Behavior |
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| `Negotiate` | Lets the client and server agree on the strongest mutually-supported option automatically. Recommended default. |
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| `NLA` | Requires Network Level Authentication (credentials verified before a full session starts) — the modern standard for current Windows versions. |
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| `TLS` | Requires TLS-only security, without NLA. |
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| `RDP` | The legacy RDP-native security layer, for older servers that don't support TLS/NLA. |
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**RDP Performance** trades visual fidelity for responsiveness:
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`Balanced` (default), `Best Quality`, `Best Performance`, or
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`Auto Detect` (adapts based on the detected connection).
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**Server certificate verification.** The first time you connect to an RDP
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host, OrbitHub trusts and remembers its TLS certificate — the same
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trust-on-first-use model SSH uses for host keys. If that certificate ever
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changes on a later connection, OrbitHub refuses the connection rather than
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connecting anyway, since a changed certificate can mean either a
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legitimate server certificate renewal or an active
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machine-in-the-middle presenting a different one. The event log (see
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below) shows the specific fingerprints involved. If the change is
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expected — you rotated the server's certificate yourself — reconnecting
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after clearing the old entry from FreeRDP's certificate store will trust
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the new one.
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## Managing Sessions
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Every open connection lives in its own tab in the same window, alongside
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the Profiles tab. A tab's title and a colored state indicator show
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whether it's connecting, connected, disconnected, or failed. Closing a
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tab disconnects that session; opening a profile again starts a fresh one.
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Each session tab includes a collapsible **event log** beneath the
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connection surface — a timestamped record of connection state changes,
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warnings, and errors for that session. Controls above the log let you:
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- **Show/Hide Events** — collapse the panel when you don't need it.
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- **Filter** — a text box to search event text, and an `All` /
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`Warnings` / `Errors` severity dropdown to narrow what's shown.
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- **Export Events** — save the current session's full event log to a
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file, useful when reporting a connection problem.
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- **Clear Events** — empty the log for that tab.
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## Settings & Preferences
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OrbitHub remembers your preferences across restarts without any separate
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settings screen — they're saved automatically as you use the app:
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- Profile list: search text, view mode (List/Folders), Protocol/Tag
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filters, and sort order.
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- Session tabs: terminal theme choice, and whether the events panel is
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shown or hidden for new tabs.
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Profile data itself (names, hosts, tags, folder structure, and so on) is
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stored in a local SQLite database — see the README for its exact path on
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your platform. Passwords are never part of that stored data.
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## Troubleshooting
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**"Host could not be resolved"** — the hostname in the profile can't be
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looked up by DNS. Check for typos, or try the host's IP address directly
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to confirm whether it's a DNS problem or something else.
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**SSH connection fails immediately, no prompt** — double-check the
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profile's Port (default `22`) and that a firewall or network path isn't
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blocking that port from your machine.
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**RDP: "Authentication failed. Check username and password."** — confirm
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Username and Domain are correct for the target server; some servers
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require the domain to be set explicitly even for local accounts.
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**RDP: "RDP security negotiation failed. Try a different RDP security
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mode."** — the server doesn't support the security mode selected in the
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profile. Try `Negotiate` first, or a more specific mode if you know what
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the server requires.
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**RDP: connection refused with a certificate-changed message** — see
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[Connecting via RDP](#connecting-via-rdp) above; this is expected,
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protective behavior, not a bug, whenever a previously-trusted server's
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certificate is replaced.
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**SSH: connection hangs at "Ask" waiting for host-key trust** — check
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that policy's behavior under
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[Connecting via SSH](#connecting-via-ssh); switching to `Accept-new` avoids
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the prompt for genuinely new hosts while still protecting against a later
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key change.
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If none of this covers what you're seeing, a session's exported event log
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(see Managing Sessions) is the most useful thing to include when asking
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for help or filing an issue.
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## About & Support
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OrbitHub is open source under the MIT license. Source code, issue
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tracking, and releases are hosted at
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[git.darksingularity.org/DarkSingularity/orbithub](https://git.darksingularity.org/DarkSingularity/orbithub).
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For a list of bundled third-party libraries and their licenses, see
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**Help → About OrbitHub** inside the app.
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To report a bug or request a feature, open an issue at
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[git.darksingularity.org/DarkSingularity/orbithub/issues](https://git.darksingularity.org/DarkSingularity/orbithub/issues).
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