X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/putty/blobdiff_plain/07ffa166c69e2c796d19c1b87d091beb89135ab9..eecca84d87d0b378a6a0af7f7651d0b9dc1514e9:/doc/errors.but diff --git a/doc/errors.but b/doc/errors.but index 6c0054d6..211e71f9 100644 --- a/doc/errors.but +++ b/doc/errors.but @@ -1,4 +1,4 @@ -\versionid $Id: errors.but,v 1.3 2003/01/30 10:19:05 simon Exp $ +\versionid $Id: errors.but,v 1.7 2003/07/12 13:25:43 jacob Exp $ \C{errors} Common error messages @@ -73,6 +73,18 @@ have configured PuTTY to consider strong enough. See \k{config-ssh-encryption} for more information on this message. +\H{errors-toomanyauth} \q{Server sent disconnect message type 2 +(SSH_DISCONNECT_PROTOCOL_ERROR): "Too many authentication failures for root"} + +This message is produced by an OpenSSH (or Sun SSH) server if it +receives more failed authentication attempts than it is willing to +tolerate. This can easily happen if you are using Pageant and have a +large number of keys loaded into it. This can be worked around on the +server by disabling public-key authentication or (for Sun SSH only) by +increasing \c{MaxAuthTries} in \c{sshd_config}. Neither of these is a +really satisfactory solution, and we hope to provide a better one in a +future version of PuTTY. + \H{errors-memory} \q{Out of memory} This occurs when PuTTY tries to allocate more memory than the system @@ -132,6 +144,24 @@ type of message, the first thing you should do is check your the server may have sent diagnostic messages explaining exactly what problem it had with your setup. +\H{errors-access-denied} \q{Access denied}, \q{Authentication refused} + +Various forms of this error are printed in the PuTTY window, or +written to the PuTTY Event Log (see \k{using-eventlog}) during +authentication. + +If you see one of these messages, it means that the server has refused +all the forms of authentication PuTTY has tried and it has no further +ideas. + +It may be worth checking the Event Log for diagnostic messages from +the server giving more detail. + +This error can be caused by buggy SSH-1 servers that fail to cope with +the various strategies we use for camouflaging passwords in transit. +Upgrade your server, or use the workarounds described in +\k{config-ssh-bug-ignore1} and possibly \k{config-ssh-bug-plainpw1}. + \H{errors-crc} \q{Incorrect CRC received on packet} or \q{Incorrect MAC received on packet} @@ -192,20 +222,15 @@ of \c{su} do it automatically. \H{errors-connaborted} \q{Network error: Software caused connection abort} -In modern versions of PuTTY, you should not see this error. - -Windows's documentation about this error condition is not very good, -but as far as we can tell, this error occurs when PuTTY is listening -on a port, another program makes a connection to that port, but -closes the connection so fast that PuTTY has no time to answer it. +This error occurs when the Windows network code decides that your +network connection is dead. For example, it will happen if you pull +the network cable out of the back of an Ethernet-connected computer, +or if Windows has any other similar reason to believe the entire +network has become unreachable. -PuTTY only ever listens on a port when it is doing local-to-remote -port forwarding (see \k{using-port-forwarding}); and if an incoming -connection on that port receives this error, PuTTY should simply -close the connection and continue without error. - -If you see this error in PuTTY 0.53 or above, we would welcome a -report of the circumstances. +We are not aware of any reason why this error might occur that would +represent a bug in PuTTY. The problem is between you, your Windows +system, your network and the remote system. \H{errors-connreset} \q{Network error: Connection reset by peer} @@ -230,3 +255,14 @@ access. Check that you are connecting with the correct protocol (SSH, Telnet or Rlogin), and check that the port number is correct. If that fails, consult the administrator of your server. + +\H{errors-conntimedout} \q{Network error: Connection timed out} + +This error means that the network connection PuTTY tried to make to +your server received no response at all from the server. Usually +this happens because the server machine is completely isolated from +the network, or because it is turned off. + +Check that you have correctly entered the host name or IP address of +your server machine. If that fails, consult the administrator of +your server.