I have installed openssh on my HP-UX 11.0 machines. I use ssh and scp instead of rcp and remsh/rlogin.
It is more secure and uses certificates. There is also openssh for Windows platforms which will allow all your OS's to talk to each other!
I am not sure if it is available for 10.20.
Here are the steps for 11.o
Installation for Open-ssh on HP-UX 11.0
Required User
You will need a sshd user setup for the system when using version 3.4.
The following is the entry needed in the passwd file.
sshd:*:22:22:"sshd":/var/empty:/bin/false
Required Software
The following two depots must be installed on the server
TWWzlib11.depot - This installs the zlib library. This does not require a reboot
openssh-3.4p1-sd-11.00.depot - This installs the ssh server and client.
The above depots can be installed by running the following command
swinstall -s /path/TWWzlib11.depot
swinstall -s /path/openssh-3.4p1-sd-11.00.depot /path is the directory where the depot is located.
The next step is to create a soft link for the libz library
ln -s /opt/TWWfsw/zlib11/lib/libz.sl /usr/local/lib/libz.sl
The following steps sets-up the automatic startup sshd at boot time.
- Create or Copy a startup config file for openssh.
If you bring down the source code from the website it provides example files. * Note the source code was un-tared but never compiled
a software depot was used to install the product.
The config files should be - /etc/rc.config.d/sshd
- Copy the startup script to the /sbin/init.d directory.
There was an example script from the source code tar file.
The startup script is named sshd.rc
- Create the softlinks for automatic startup at boot.
cd /sbin/rc1.d
ln -s /sbin/init.d/sshd.rc K100sshd
cd /sbin/rc2.d
ln -s /sbin/init.d/sshd.rc S900sshd
The next step is to create the RSA1, RSA2, and DSA host keys for openssh.
- Do the following commands
RSA1 key
/usr/local/bin/ssh-keygen -t rsa1
You will be prompted where you want the key.
for rsa1 option enter the following when prompted
/usr/local/etc/openssh/ssh_host_key
This will create the RSA1 public and private key in the /usr/local/etc/openssh directory.
RSA2 key
/usr/local/bin/ssh-keygen -t rsa
You will be prompted where you want the key.
for rsa2 option enter the following when prompted
/usr/local/etc/openssh/ssh_host_rsa_key
This will create the RSA2 public and private key in the /usr/local/etc/openssh directory.
DSA key
/usr/local/bin/ssh-keygen -t dsa
You will be prompted where you want the key.
for dsa option enter the following when prompted
/usr/local/etc/openssh/ssh_host_dsa_key
This will create the DSA public and private key in the /usr/local/etc/openssh directory.
- The next step is to create a sshd user. The sshd user is required in the new 3.4 openssh version
- The final step is to create a directory that openssh will use.
mkdir /usr/local/var
mkdir /usr/local/var/empty
chmod 755 /usr/local/var/empty
The openssh server can be started by running the startup script
/sbin/init.d/sshd.rc start
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