FAQ - Frequently Asked Questions

Does WebSSH support ZMODEM, YMODEM or XMODEM transfers?

Unfortunately, WebSSH does not support ZMODEM, YMODEM or XMODEM transfers. A GitHub issue could be find to track this feature request : #761

How can I lock access to the app?

Since WebSSH 30, the access lock feature rely on iOS / iPadOS 18 built-in "Lock an app" feature. To use it, please refer to the following Apple documentation :

• iPad User Guide
• iPhone User Guide

If you are using an older version of iOS or iPadOS, or if you are running macOS, you can use the built-in lock feature inside WebSSH :

1. Open WebSSH
2. Go to Settings
3. Enable Face ID / Touch ID / Password Lock

Is it possible to force WebSSH to use IPv4 instead of IPv6 when connecting to a host?

Yes, it is possible to force WebSSH to use IPv4 instead of IPv6 when connecting to a host.

To do so, please follow these steps :

1. Go to WebSSH Settings
2. Internet Protocol Strategy
3. Choose "Try IPv4 host address before IPv6" or "Only use IPv4 for resolution"

Once done, WebSSH will prioritize IPv4 connections when both IPv4 and IPv6 are available for a host.

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Last update: September 28, 2025