Yes, UserID has been created in the server. the output of xhost + is right.
You should register the server IP and hostname in /etc/hosts in your client pc.

I have added the IP address of the server to C:\cygwin\etc\hosts at client PC (Winodws OS), but I have not added the hostname for the server, because I do not have one.

The Unix server gets unknown hostname when I checked /etc/hosts for it (Not client).


still I get this message:

$ xhost +
access control disabled, clients can connect from any host


I will try to use 0 (zero) for root UserID If I can get "xhost +" syccessfully

$ xhost +
access control disabled, clients can connect from any host


The message above is OK!

Have you succeeded to login into Remote server?

No, I could not login to the server

sshd_config is for the server configuration. Please confirm your client pc can forward X11.

ssh_config is for the client ssh configuration. Please find it.
In my Redhat9, the ssh_config is located in /etc/ssh/ssh_config.
confirm the following line is uncommented.
Host *
ForwardX11 yes

And Is the server side ssh service started?
ps -ef | grep sshd

what is the output from the command above?

I was trying to check if ssh has been installed on my client PC (winodws) or not, I tried these command from Cygwin black screen:


Administrator@dell ~
$where is ssh
INFO: Could not find files for the given pattern(s).

Administrator@dell ~
$whereis ssh
bash: whereis: command not found

Administrator@dell ~
$find / -name ssh -print
find: /cygdrive/c/Documents and Settings/Administrator/Favorites/ ????? ?????? ?
?????.url: No such file or directory
find: /cygdrive/c/Documents and Settings/Administrator/Favorites/BBCArabic.com
?????? ????????.url: No such file or directory
find: /cygdrive/c/Documents and Settings/Administrator/My Documents/University R
elated Materials/????? ????? ????? ????????? ??????????.htm: No such file or dir
ectory
find: /cygdrive/c/Documents and Settings/Administrator/My Documents/University R
elated Materials/????? ????? ????? ????????? ??????????_files: No such file or d
irectory
find: /cygdrive/c/Documents and Settings/Administrator/My Documents/???? ???????
? ?????? ?????: No such file or directory
find: /cygdrive/c/Microsoft UAM Volume/ICON?: No such file or directory
find: /cygdrive/c/pagefile.sys: No such file or directory


I relized that might "ssh" has not been installed,,,,Am I right?

You meant client here (But my case I can not do it, if ssh has not been installed correctly), and we have to do the same thing with the server
()


I will check it when I will be back to the office

Sorry for the confusion. In the case of client using UNIX-like OS ( linux, solaris), the client should config the ssh_config files. In the cygwin case the configuration can be ignored. In my lab I can use cygwin to access remote server but no need to configure the ssh_config.

In the server of my lab, ps -ef | grep sshd (in the server side) gave me the following message:
ultrasoul:~ 101 % ps -ef | grep sshd
root 363 1 0 May 06 ? 0:00 /usr/lib/ssh/sshd ( Do you just can see this line in your remote server? )
root 4352 3440 0 09:40:21 ? 0:00 /usr/local/sbin/sshd -R ( if you do not have these two lines, please enter "/usr/local/sbin/sshd". Note: The location of sshd command is depend your server sshd installation )
root 3440 1 0 22:18:32 ? 0:01 /usr/local/sbin/sshd

The output of "ps -ef | grep sshd" command was:

root 393 1 0 May 05? 0:00 /usr/lib/ssh/sshd


Yes I can see only this line on the remote server, as it has been proved above.

I do not have this line with option "R" at the end. I have got only the line that I mentioned above(without option R at the end).

Yes the location is : "/usr/lib/ssh/sshd"

Please input "/usr/local/sbin/sshd &". And see the output from ps -ef | grep sshd again.

You meant (my case has got different location from yours) "usr/lib/ssh/sshd &"------did not you?

Output was:
#/usr/lib/ssh/ssdh &

3375

# ps -ef | grep sshd

root 393 1 0 May 05 ? 0:00 /usr/lib/ssh/sshd

Please find out the sshd program.

please run "find / -name sshd -print" in your server PC. What is the output for this command?

IN my sun sparc server:
# find / -name sshd -print
/usr/lib/ssh/sshd ( you just run this services )
/usr/local/sbin/sshd ( the command may be not implemented)
......


I am not sure if the ssh is correctlly installed in server side ) . Please access
the following site for more information .
http://www.sunfreeware.com/openssh8.html ( this site may be helpful. )

This is the output:

# find / -name sshd -print
/usr/lib/ssh/sshd
/usr/sfw/lib/webmin/caldera/sshd
/usr/sfw/lib/webmin/sshd
/etc/webmin/sshd
/lib/svc/method/sshd


Does the output above give any indecator that sshd is installed properly?

In my server side, find / -name -sshd -print gives the message as follows:
MyServer:~ 105 % find / -name sshd -print
/usr/lib/ssh/sshd
/usr/sfw/lib/webmin/caldera/sshd
/usr/sfw/lib/webmin/sshd
/usr/local/doc/openssh/contrib/hpux/sshd
/usr/local/sbin/sshd ( You do not have this line )
/etc/webmin/sshd
/lib/svc/method/sshd

MyServer:~ 106 % pkginfo | grep sshd
system SUNWsshdr SSH Server, (Root)
system SUNWsshdu SSH Server, (Usr)
Myserver:~ 107 % pkginfo | grep openssh
application SMCossh4 openssh


I want to give you my install log with openssh.

<1> add the following packages:
# pkgadd -d openssh-3.8.1p1-sol8-sparc-local
# pkgadd -d openssl-0.9.7g-sol8-sparc-local
# pkgadd -d zlib-1.2.1-sol8-sparc-local
# pkgadd -d libgcc-3.3-sol8-sparc-local (if you don't already have gcc 3.3.2 installed)
# pkgadd -d tcp_wrappers-7.6-sol8-sparc-local (optional)

<2> Setting up the sshd user and the /var/empty directory ( implement these steps as root )
# mkdir /var/empty
# chown root:sys /var/empty
# chmod 755 /var/empty
# groupadd sshd
# useradd -g sshd -c 'sshd privsep' -d /var/empty -s /bin/false sshd

/var/empty should not contain any files.
The default sshd_config file in /usr/local/etc has the last line

<3>Setting up tcp_wrappers ( if you want )
<4>Edit /etc/hosts.allow and /etc/hosts.deny
MyServer:~ 112 % less /etc/hosts.deny
sshd:ALL

Myserver:~ 113 % less /etc/hosts.allow
sshd:Your_IP1,Allowed IP address,192.168.0.19

<5> Installing ssh and sshd
This is the final step.
Each machine that you want to communicate with via the ssh client will need to have an sshd daemon running. But first, you need to run the following three lines to create the key information for the server machine. Again, make sure you have /usr/local/bin and /usr/local/sbin in your PATH. If you have been running sshd before and have keys in /usr/local/etc, running these commands will overwrite them. As root, enter

# ssh-keygen -t rsa1 -f /usr/local/etc/ssh_host_key -N ""
# ssh-keygen -t dsa -f /usr/local/etc/ssh_host_dsa_key -N ""
# ssh-keygen -t rsa -f /usr/local/etc/ssh_host_rsa_key -N ""

and wait until each is done - this may take a few minutes depending on the speed of your machine.
You might also want to study the /usr/local/etc/ssh_config and /usr/local/etc/sshd_config files to see if there is anything you want to configure differently.

<6> Please input " find / -name sshd -print"
maybe the output lines have the line of "/usr/local/sbin/sshd "
Please input from prompt as follows:
# /usr/local/sbin/sshd &
Then, your server is correctly configured and you can communicate with server by the IP addresses in /etc/host.allow file.

Please confirm this configuration.
Hope it to be helpful.

Yes, The userID is the one which has been created in the remote sunws by administor.

Sorry, but I have not got time to practice this, I will late you know.