Hello. I am a novice Linux user, trying to install Rsync for the first time.

the install apt-get rsync command does not work.

how do I first install rsync application to start using it?

What distro are you using? Most come with rsync pre-installed.

Also, it's not
it's
"apt-get" is the package management program, "install" is what you're telling it to do, and "rsync" is the name of the program you want to install.

Hello. thank you.

yes if I type "apt-get install rsync"

my system outputs
apt-get: Command not found.


My distribution is Linux
my shell is TCSH

---------- Post added 12-31-13 at 05:16 PM ----------

Hello.

how do i see if rsync is already installed?

Linux is not a distribution. Linux is the kernel of an operating system. Distributions include the Linux kernel and a multitude of supporting software, an installer, a desktop environment, etc. You are apparently using a distribution that does not use apt-get for package management, which is why there is no apt-get on your system. apt-get is used by Debian-based distributions. Redhat and its derivatives use yum, openSUSE uses zypper, etc.

So I ask again, what distribution are you using? You can usually find out by running:
If you want to see if rsync is already installed, just try running "rsync".

Hello.

I do have rsync installed on my linux distribution. how to make sure I have the right authorization keys? Do you have any resources on how to use it?

thank you in advance. Here is my output, it looks as though I have CentOS as the distribution ?

CentOS release 6.2 (Final)
cat: /etc/lsb-release.d: Is a directory
CentOS release 6.2 (Final)
CentOS release 6.2 (Final)
cpe:/o:centos:linux:6:GA

Yes you're running CentOS 6.2. CentOS is based on RedHat Enterprise and uses yum for package management

etc.

6.2 is quite old, you should run an update to migrate to 6.5.

Authorization keys for what?
will tell you more about its use.

Thank you for your response.

this site gives the basic information.

http://everythinglinux.org/rsync/

it says I need to set up an rsyncd.conf file under the /etc directory.

It says "You must set up a configuration file on the machine meant to be the server and run the rsync binary in daemon mode. Even your rsync client machines can run rsync in daemon mode for two-way transfers."

So for the computer that will act as my "source" or server of which I will push files from, I need to set up the configuration file.

should I just read the manual for the rsyncd.conf to set up the security options across two different servers?

Be careful where you get advice. From the website you referenced...

And that simply is not true, or at least not applicable to common rsync usage.

Read the manual and learn the simple commands.

It might also be helpful to tell us what you want to use rsync for, maybe we can give some simple variations to use.

It depends on what you're trying to do and how you plan to run it. You can run rsync through ssh without any conf files or daemon mode, as long as you have an account and rsync installed on both machines.

or
just like you would with cp or scp

Depending on how you set the flags you can accomplish just about anything

edit: too slow

thank you for your response.

I wish to use rsync as a mirroring tool to replace the command I normally use 'scp -r path/to/source/push path/to/destination/serverath/to/directory/of/files/within/server'

I usually have issues using the scp -r because I am too hasty and run scp -r on two different linux terminals and flood the destination server. novice error.


I wish to use rsync as a mirror tool such that when I run the rsync in daemon mode I can transfer over files from serverA to serverB. I also need security options set.

I am looking at the configuration manual... not to sure what is the most important things I need

This post #2 http://www.linuxquestions.org/questi...nc-4175483358/

talks about setting up the ssh keys. I need to do this too.

advice? I will click on his links now and read through them

Just change "scp" to "rsync" and swap out "-r" with "-a". Everything else should work exactly the same.

BTW - if you want to do mirroring, you should be using the "-p" flag in scp to preserve timestamps and modes. You may find it very difficult to hunt down the file you want from the backup when they all have [basically] the same timestamp.

If you already set it up for your scp command, then it'll work on rsync too, and ssh. If you haven't set them up at all, it's pretty easy.

On the source machine:
or rsa, there are some subtle differences. Type in a passphrase if you want, or if you want fully password/phrase-less login just keep hitting enter until you're back at a command prompt.

When it's done, you should have a ~/.ssh/id_dsa.pub (or rsa) file, which will have a single very long line
Copy that line and paste it into the ~/.ssh/authorized_keys2 file on the destination machine (create this file if it doesn't already exist). Make sure the permissions on the destination machine are as follows
If the permissions are too lax, ssh will deny authorization and force you to use a password.

You may need to use authorized_keys instead of authorized_keys2, it depends on how the sshd config is set on the destination machine.

Hello. thank you response.

In generating the ssh-keygen -t rsa

it prompts me to

[acolombo@hpc-login2 ~]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/rcf-13/acolombo/.ssh/id_rsa):


not too sure how to proceeed?