Only available in SSH-2. Forces a repeat key exchange immediately (and resets associated timers and counters). For more information about repeat key exchanges, see
section 4.19.2
.
•Break
Only available in SSH-2, and only during a session. Optional extension; may not be supported by server. PuTTY requests the server's default break length.
•Signals (SIGINT, SIGTERM etc)
Only available in SSH-2, and only during a session. Sends various POSIX signals. Not honoured by all servers.
With a serial connection, the only available special command is ‘Break’.
3.1.3.3 Starting new sessions
PuTTY's system menu provides some shortcut ways to start new sessions:
•Selecting ‘New Session’ will start a completely new instance of PuTTY, and bring up the configuration box as normal.
•Selecting ‘Duplicate Session’ will start a session in a new window with precisely the same options as your current one - connecting to the same host using the same protocol, with all the same terminal settings and everything.
•In an inactive window, selecting ‘Restart Session’ will do the same as ‘Duplicate Session’, but in the current window.
•The ‘Saved Sessions’ submenu gives you quick access to any sets of stored session details you have previously saved. See
section 4.1.2
for details of how to create saved sessions.
3.1.3.4 Changing your session settings
If you select ‘Change Settings’ from the system menu, PuTTY will display a cut-down version of its initial configuration box. This allows you to adjust most properties of your current session. You can change the terminal size, the font, the actions of various keypresses, the colours, and so on.
Some of the options that are available in the main configuration box are not shown in the cut-down Change Settings box. These are usually options which don't make sense to change in the middle of a session (for example, you can't switch from SSH to Telnet in mid-session).
You can save the current settings to a saved session for future use from this dialog box. See
section 4.1.2
for more on saved
sessions.
3.1.3.5 Copy All to Clipboard
This system menu option provides a convenient way to copy the whole contents of the terminal screen (up to the last nonempty line) and scrollback to the clipboard in one go.
3.1.3.6 Clearing and resetting the terminal
The ‘Clear Scrollback’ option on the system menu tells PuTTY to discard all the lines of text that have been kept after they scrolled off the top of the screen. This might be useful, for example, if you displayed sensitive information and wanted to make sure nobody could look over your shoulder and see it. (Note that this only prevents a casual user from using the scrollbar to view the information; the text is not guaranteed not to still be in PuTTY's memory.)
The ‘Reset Terminal’ option causes a full reset of the terminal emulation. A VT-series terminal is a complex piece of software and can easily get into a state where all the text printed becomes unreadable. (This can happen, for example, if you accidentally output a binary file to your terminal.) If this happens, selecting Reset Terminal should sort it out.
3.1.3.7 Full screen mode
If you find the title bar on a maximised window to be ugly or distracting, you can select Full Screen mode to maximise PuTTY ‘even more’. When you select this, PuTTY will expand to fill the whole screen and its borders, title bar and scrollbar will disappear. (You can configure the scrollbar not to disappear in full-screen mode if you want to keep it; see
section 4.7.3
.)