PuTTY Fatal Error dialog - Can it be suppressed? [closed]

Solution 1:

You can't really suppress these dialogs directly in Putty, I'm afraid. You can, however, work around the issue by using the command-line version of putty (plink) instead of the windowed version.

Another option would be to download the source code and either simply suppress the message or add support for a new /quiet switch that will do that (after all, putty is open source).

Edit: if you open the "WINDOWS\WIDNOWS.C" file and comment line 1111 (on my version anyway), that error message will be suppressed (not very elegant, but quick and easy). Here is the result:

/*
 * Print a message box and close the connection.
 */
void connection_fatal(void *frontend, char *fmt, ...)
{
    va_list ap;
    char *stuff, morestuff[100];

    va_start(ap, fmt);
    stuff = dupvprintf(fmt, ap);
    va_end(ap);
    sprintf(morestuff, "%.70s Fatal Error", appname);
    //MessageBox(hwnd, stuff, morestuff, MB_ICONERROR | MB_OK);
    sfree(stuff);

    if (conf_get_int(conf, CONF_close_on_exit) == FORCE_ON)
    PostQuitMessage(1);
    else {
    must_close_session = TRUE;
    }
}

Solution 2:

I would log out before going home in the evening, rather than the next morning.

Solution 3:

To avoid this issue, I am using a Linux server as a jump point. Here I run screen or tmux and all remote connections I am creating from screen or tmux. If the server has byobu package, I preffer to start screen or tmux from byobu.

Solution 4:

No, this is the server killing your connection because you were idle. You could prevent this by sending keepalives, perhaps once every hour (3600 seconds)