Difference between revisions of "OpenSSH (including daemon) for OpenLink"

From NAS-Central Buffalo - The Linkstation Wiki
Jump to: navigation, search
m (Background)
m (OpenLink)
Line 11: Line 11:
 
==Installation Instructions==
 
==Installation Instructions==
 
===OpenLink===
 
===OpenLink===
* ppc-openssh-3.9p1–05b
+
: <big>ppc-openssh-3.9p1–05b</big>
 
*''' openssh-3.9p1'''
 
*''' openssh-3.9p1'''
  
Line 30: Line 30:
 
  fi   
 
  fi   
 
If the modification is not done, every time SSH is stopped and restarted, it will complain the the /var/empty directory already exists.  One must also remember to create user named "sshd".
 
If the modification is not done, every time SSH is stopped and restarted, it will complain the the /var/empty directory already exists.  One must also remember to create user named "sshd".
 +
 
===FreeLink (Debian)===
 
===FreeLink (Debian)===
  

Revision as of 00:56, 3 August 2006

This article based on work done by Frontalot on Linkstationwiki.org

190px-Openssh.gif

Contents

Background

This project offers OpenSSH (including daemon), precompiled and packaged for the PPC LinkStation. The OpenSSH[1] - package is intended for people who want to upgrade from Dropbear to a more full-featured SSH daemon. This way you can use a client like PuTTY or FileZilla for terminal and file transfer. You can even tunnel other protocols like VNC through SSH to make them secure.[2] This package requires that you have installed the OpenLink or FreeLink firmware. You may download the latest version from the downloads area (here). Or, use this version here - "it contains the original tarball plus an installation script (not yet widely tested, but at least from that you can see the requirements)" reffered to by Izzy in this forum [3]

Installation Instructions

OpenLink

ppc-openssh-3.9p1–05b
  • openssh-3.9p1

A complete OpenSSH-4.2p2-package is available at mindbenders-page: OpenSSH-4.3p2_ppc.tar.gz Install it by

cd /
wget http://www.unet.univie.ac.at/~a0025690/ppc-binaries/OpenSSH-4.3p2_ppc.tar.gz
tar xzvf OpenSSH-4.3p2_ppc.tar.gz
/usr/local/etc/create_keys.sh

you should be able to connect via ssh after reboot or if you start

/etc/init.d/sshd start

manually.

Also, the sshd needs to be modified by adding the following lines to startup block.

if [ ! -d /var/empty ]; then
mkdir /var/empty
fi  

If the modification is not done, every time SSH is stopped and restarted, it will complain the the /var/empty directory already exists. One must also remember to create user named "sshd".

FreeLink (Debian)

  • Install the OpenSSH package using apt-get. If prompted, select SSH version 2. Use the command:[4]
apt-get install ssh

Programs included

The OpenSSH suite includes the following tools:[5]

ssh user@example.com
scp user@example.com:somefile .
sftp user@example.com
sshd
  • ssh-keygen, a tool to generate the RSA and DSA keys that are used for user and host authentication:
ssh-keygen -t rsa
  • ssh-agent, a small daemon that can hold copies of public keys and use them to sign authentication challenges, avoiding the need to enter passphrases every time they are used:
eval `ssh-agent`
  • ssh-add, a tool to load keys into, or delete keys from a running ssh-agent:
ssh-add
  • ssh-keyscan, which scans a list of hosts and collects their public keys:
ssh-keyscan -t rsa 192.2.0.33 192.2.0.34 www.example.com
  • sftp-server, the sftp server subsystem (normally run directly by sshd)
  • ssh-keysign, a setuid helper program that signs "hostbased" authentication challenges using the host's private keys (normally executed directly by ssh)

References

  1. http://www.openssh.com/ - OpenSSH a FREE version of the SSH connectivity tools
  2. http://martybugs.net/smoothwall/puttyvnc.cgi - Tunnelling VNC over SSH with PuTTY
  3. The Linkstation Community Forum / Everything else / www.linkstationwiki.net - Mediawiki is online
  4. Convert from telnet to SSH (both OpenSSH and Dropbear)
  5. OpenSSH - From the WikiPedia