= Fix: CTRL + S Freezes Putty = **Summary**: How to fix the behavior on linux with putty that pressing 'CTRL' + 'S' seems to freeze the box. \\ **Date**: Around 2015 \\ **Refactor**: 9 January 2025: Checked links and formatting. \\ {{tag>fix putty linux}} Whenever I press CTRL+S in putty the terminal seems to freeze. It's actually not, but it doesn't show anything. That is because CTRL+S initiates the XOFF command, which means it accepts keystrokes but doesn't show it. There are two fixes: = Fix One - Temporary = Press CTRL+Q to initiate the XON command. Anything you pressed will be shown. = Fix Two - Permanent = Add this line to your .bashrc file: stty ixany Now, when you hit CTRL+S the XOFF gets initiated but any character will start XON.