About the app, security, and distribution
01What is CH-J Server Manager?
CH-J Server Manager is a desktop application for managing servers primarily over SSH. It provides server profiles, an interactive terminal, SFTP file management, monitoring, and an extensible system of installable plugins.
02Is CH-J Server Manager free?
Yes. CH-J Server Manager is currently distributed free of charge.
03Is CH-J Server Manager open source?
Yes. The project is licensed under the Apache License 2.0. The complete license terms, copyright notice, and licenses for third-party components are published on the License page.
Open licensing information →04Which operating systems are supported?
Current Alpha builds target Windows 11 x64, macOS on Apple Silicon (ARM64), and Ubuntu 24.04 LTS x64. The Windows installer and Ubuntu DEB have been installed and tested on those systems; the macOS package is not yet notarized by Apple.
Open documentation →05Why does Windows SmartScreen warn about the application?
The Alpha installer is not yet signed with a trusted publisher certificate and has not built SmartScreen reputation. Continue only with a file downloaded from this website and compare its published SHA-512 checksum before running it.
Open documentation →06Why does macOS block the application?
The current Alpha has only a test ad-hoc signature and is not notarized by Apple, so Gatekeeper may block its first launch. Use Open from the Control-click menu or Open Anyway in Privacy & Security, and verify the file's SHA-512 checksum first.
Open documentation →07Where are SSH passwords and private keys stored?
Stored SSH passwords, server profiles, and known host keys are held in the local vault protected with scrypt and AES-256-GCM; the master password is not stored. For key authentication, the profile stores the path to the selected private key and Core reads that file locally without copying its contents into the vault.
08Does CH-J Server Manager send my SSH credentials to CH-J servers?
No. When making an SSH connection, Core passes credentials directly to the SSH server configured in the profile. The CH-J distribution server provides the update and plugin catalogue and package downloads; it is not an intermediary for SSH authentication.
09Can I use SSH keys instead of passwords?
Yes. A server profile supports authentication with either a password or a private SSH key. Select a local private-key file rather than the public .pub file; an encrypted key can use the passphrase you enter.
10How are application updates delivered?
Core reads an HTTPS catalogue of compatible releases, and the app and plugins each have a separate Alpha, Beta, or Stable channel choice. Core checks the expected size and SHA-512 before using a package. Alpha contains the newest test builds, Beta contains more complete builds for broader testing, and Stable contains verified releases for normal use.
Open releases and checksums →11How can I verify a downloaded file?
The Download and All releases pages publish the complete SHA-512 checksum for every package. Calculate SHA-512 for the downloaded file with a system tool and compare the entire result character by character; do not use the file if anything differs.
Open releases and checksums →12What are plugins?
Plugins are separately installable tools that extend the small Core without modifying it. Currently published tools include System Monitor, File Manager, Key Generator, Log Viewer, Users, and NGINX Manager.
13Are plugins sandboxed?
Yes. Plugin windows run in the Electron sandbox without Node integration, and Core exposes only capabilities declared by the verified manifest. Plugins have no general access to Node.js, the local disk, the network, or an unrestricted remote shell; the sandbox is still not an absolute security guarantee for untrusted code.
14Where can I report bugs or request features?
Use the public Community page to start a topic and add replies. The website does not currently publish a public source-repository link, so no unverified repository address is provided here.
Open the community →15Is CH-J Server Manager ready for production use?
Not yet. Core 0.0.1 is an actively developed Alpha intended primarily for testing. Features, formats, and security mechanisms may change, and standard TLS validation, update-manifest signing, production code signing, and further testing remain before Stable.
16Where can I find installation instructions?
Detailed guides for Windows 11 x64, macOS on Apple Silicon, and Ubuntu 24.04 LTS x64 are available in the matching language version of the Wiki. They cover requirements, installation steps, first launch, and current platform-specific notices.
Open installation guides →