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Mosh vs OpenSSH: catalog facts
Mosh	OpenSSH
Free Free software.	Free Free and open source under a BSD-style licence.
macOS, Linux, Command line	macOS, Linux, Self-hosted, Command line
Sessions survive IP changes and sleep Local echo reduces perceived lag	Complete client, server and key management suite Port forwarding and tunnelling built in
Server component must be installed on the remote host Needs UDP ports open through firewalls	Command-line only with no graphical interface Configuration options take time to learn
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License: GPL-3.0	License: BSD-style
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.