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Posted by Steve on Fri 3 Jun 2005 at 09:45 Because OpenSSH allows you to run commands on remote systems, showing you the results directly, as well as just logging in to systems it's ideal for automating common tasks with shellscripts and cronjobs. One thing that you probably won't want is to do though is store the remote system's password in the script.
In this article, I show you how to use the scp (secure copy) command without needing to use passwords. I then show you how to use this command in two scripts. One script lets you copy a file to multiple Linux boxes on your network, and the other allows you to back up all of your Linux boxes easily. If you're a Linux sysadmin, you frequently need to copy files from one Linux box to another. Or, you may need to distribute a file to multiple boxes. You could use FTP, but using scp has many advantages.
SSH concepts With remote access via ssh, there are 2 user accounts to consider : luser@local ---becomes---> ruser@remote Although both accounts can have the same account name (e.g. jdoe@local, jd@remote), and although ssh assumes that you will use the same username on both local and remote system, they are 2 distinctive user accounts, on separate machines.
The second day I got the Palm Pre, I was able to SSH into my own Palm Pre and also make it into a WiFi Router. Of course, this is usual business for me as I manage about 30+ web servers on a daily basis. If I see a linux machine, the first thing I want to do is SSH into it. What is SSH?
VPN Definition An IP-based Virtual Private Network (VPN) provides a secure tunnel for transmitting data through an unsecured network such as the Internet. There are several protocols that can be used to achieve this such as PPTP, L2TP, L2F, IPSEC etc.
The TechRepublic CIO50 list celebrates the most influential and innovative tech chiefs, voted by their fellow CIOs SSH is an extremely useful tool in that it allows you to do many things in a secure fashion that you might not otherwise be able to do. One of the things SSH allows you to do is to set up a reverse encrypted tunnel for data transfer. Typically, when you initiate an SSH tunnel, you forward a port on the local machine to a remote machine which can allow you to connect to an insecure service in a secure way, such as POP3 or IMAP. However, you can also do the reverse.
Some of the most popular posts here in Go2Linux are: How to transfer files with ssh and 10 useful examples of the Linux find command So, I have decided to merge them in a good tip to look for files in a remote server and then copy them to your local machine, I haven't already needed something like this, but it may be useful for someone (I hope).
Imagine you are out of the office, but you have an important document that you have to get from your personal computer in your office. Unfortunately your computer is protected behind a firewall, making it impossible to access. But you have a server that you can access and your personal computer also can access this server.
Posted by Anonymous on Mon 11 Oct 2004 at 12:49 OpenSSH is a well known program which allows you to login to a host remotely, and run commands etc. It also comes with a simple file transfer system which can be used to transfer files securely. scp is the command to use. You can either transfer files to the remote machine from your local one, or vice versa. Usage is as simple as:
How should I authenticate myself How do I use an authentication agent How do I tunnel X11 through an ssh connection? Using port forwarding in general
The following sections hope to provide enough information to setup a user new to ssh with the appropriate files necessary for accessing remote hosts in a secure manner. Improvements to and comments about this document are welcome. Updated: The examples now show ssh version 2 commands, using OpenSSH . There are several security vulnerabilities in protocol version 1. Everyone should have already migrated to version 2 by now, so it was about time for me to also reflect best practises in this document. I also updated the link section at the end of the document to better reflect today’s software selection.