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Operating Systems Linux Red Hat X11 forwarding problem between 2 RHEL4 machines with SSH Post 100341 by panggou on Sunday 26th of February 2006 08:45:20 PM
Old 02-26-2006
X11 forwarding problem between 2 RHEL4 machines with SSH

X11 forwarding problem between 2 RHEL4 machines with SSH

Already configured the following on both machines under /etc/ssh

Under sshd_config:
UsePAM no
AllowTcpForwarding yes

Under ssh_config:
ForwardAgent yes
ForwardX11 yes
ForwardX11Trusted yes

-----------------------------
Using windows with putty and Xwin32, i am able to run X apps from my linux machines after exporting the correct DISPLAY:
e.g. //THE FOLLOWING WORKS
export DISPLAY=<windows_machine_ip>:0
xclock &

When doing above on a linux machine, I keep getting the following errors:

"Error: Can't open display: 10.83.75.183:0.0Error: Can't open display: 10.83.75.183:0.0"

Anyone have any idea here?
 

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libssh2_channel_x11_req_ex(3)					  libssh2 manual				     libssh2_channel_x11_req_ex(3)

NAME
libssh2_channel_x11_req_ex - request an X11 forwarding channel SYNOPSIS
#include <libssh2.h> int libssh2_channel_x11_req_ex(LIBSSH2_CHANNEL *channel, int single_connection, const char *auth_proto, const char *auth_cookie, int screen_number); int libssh2_channel_x11_req(LIBSSH2_CHANNEL *channel, int screen_number); DESCRIPTION
channel - Previously opened channel instance such as returned by libssh2_channel_open_ex(3) single_connection - non-zero to only forward a single connection. auth_proto - X11 authentication protocol to use auth_cookie - the cookie (hexadecimal encoded). screen_number - the XLL screen to forward Request an X11 forwarding on channel. To use X11 forwarding, libssh2_session_callback_set(3) must first be called to set LIBSSH2_CALL- BACK_X11. This callback will be invoked when the remote host accepts the X11 forwarding. RETURN VALUE
Return 0 on success or negative on failure. It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a negative number, it isn't really a failure per se. ERRORS
LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed. LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket. LIBSSH2_ERROR_CHANNEL_REQUEST_DENIED - SEE ALSO
libssh2_channel_open_ex(3) libssh2_session_callback_set(3) libssh2 0.15 1 Jun 2007 libssh2_channel_x11_req_ex(3)
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