Dear people, since openssh-3.8.1p1 I experience problems with the automatic X11 forwarding. I installed openssh-3.9p1 yesterday hoping the problems should disappear, but alas no. It looks like the X11 autorization times out after some time, I don't know exactly but after half an hour it surely is gone. When I installed openssh-3.8.1p1 I also had opgraded openssl from 0.9.7c to 0.9.7d then, but I think that the X11 forwarding problem has to do with openssh. On a SUn Blade-150 with Solaris-8 using CDE I open some windows with openssh sessions to several other hosts. That works fine and I can use X11 applications that nicely display on my Blade-150. But of course I don't use all the windows all the time and when I have worked some time in one window and then come back to a window left over some time the attempt to start an X application fails: zielknijper 234# xclock Xlib: connection to "localhost:12.0" refused by server Xlib: Invalid MIT-MAGIC-COOKIE-1 key Error: Can't open display: localhost:12.0 zielknijper 235# I hope somebody can show me the direction I have to look to solve this problem. Thanks beforehand. I compiled on solaris-8 with Sun Workshop-5 cc using the command below to configure (broken in lines for readability): env CC=cc CFLAGS=-O LDFLAGS="-s -L/local/lib -L/usr/local/lib" CPPFLAGS="-I/local/include -I/usr/local/include" ../configure --prefix=/local/openssh-3.9p1 --sysconfdir=/local/etc/openssh --with-ssl-dir=/local/openssl-0.9.7d --with-pam --with-skey=/usr/local/skey-1.1.5 --with-tcp-wrappers --with-pid-dir=/var/run --with-xauth=/usr/openwin/bin/xauth --with-lastlog=/var/adm/lastlog --with-default-path=/local/bin:/usr/local/bin:/opt/bin:/usr/bin:. With regards -- Rudi van Houten - Department of Mathematics Utrecht University Automatiseringsteam / System Management :-) Fantasy is given mankind to make amends for what he is not, and a sense of humour as consolation for what he is.