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Remote Administration

By Mark ·
Can anyone tell me how to remotely adminster a secured linux server runnging RH6.1? I am a dos/windows user and my linux tech quit on me. I can telnet into the system using WIN95 telnet, but running linuxconfig gives me some jumbled menus and I can't see what to choose. Is there a specific font I should use or another terminal program that works better? Can the GNOME starx be run remotely? If so, how do I set that up on a WIN9X system?

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by jay In reply to Remote Administration

For securing communications it's better use ssh instead telnet. You can download binary openssl and openssh from rpmfind.net/linux/RPM. In Win95 you can download putty (support telnet & ssh), this ssh client is better than native win95 telnet client.
If you want remote X you must use XServer application like Xwin32.

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Remote Administration

by Mark In reply to Remote Administration

Securing is not the issue here. He has it set so you can only telnet from our network. I dialup to our RAS and telnet in from there. Also remember that I don't have much linux experience. Does this Xwin32 install on the linux server or the WIN9Xclient?

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by dgleis In reply to Remote Administration

I do agree with the last answer telnet is not secure. There are other options, you should install ssl and ssh. Might i suggest you install webmin, it requires perl and you should you the option to use ssl with it. webmin will run on you linux box onany port you choose the default is 10000.it has the options to restrict or allow by ip who can connect or who can't. All you need is a web browser on your windows box, point it at the given address for webmin on your linux box. Login and you can administrate your entire linux machine from your windows web browser.
here's the url
http://www.webmin.com

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Remote Administration

by Mark In reply to Remote Administration

I saw this webmin too and asked my former tech about it. He said he didn't think it was a good idea because it would probably do like linuxconfig and not handle the files properly. He says I need to learn the files involved and change them manually. Have you had experience with this webmin? It looked good to me, but I'd hate to invest time in something I know little about to find out it doesn't work. I mainly want to route mail. Mail for anyone@mydomain.com would route to someone@yourdomain.com.

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Remote Administration

by petronil In reply to Remote Administration

I agree too that telnet is not secure and this is an advice from security experts, its better to use ssh or ssl. Download any windows program which supports ssh or better use PenguiNet and install ssh to your linux box. Make sure on your configurations of your ssh so that you could remotely administer your machine.

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Remote Administration

by Mark In reply to Remote Administration

Talking greek to this rookie. I wouldn't know where to start.

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Remote Administration

by Kevin Anderson In reply to Remote Administration

Personally, I'd use VNC.

It's probablly already installed with RH 6.1, so log into a telnet session, and at the command line type

vncserver

You'll want to be logged in as root at the time, so you may need to use the command

su

to switch to root before starting VNC.

Vnc will ask you for a password, and then start with a message which will include a port number. Once running, you can connect to vnc through IE/Netscape if you go to...

http://ip.address.of.box:portnumber

The portnumber will be the one you saw earlier plus 5800 (probablly 5801). This will start an X session which will allow you to have a command line that works properly.

VNC instructions and stuff are available at

http://www.cam-orl.co.uk/vnc/winvnc.html

if you need more help, send me an email, I'll do my best.

Kev.

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Remote Administration

by Mark In reply to Remote Administration

Thanks. It wasn't already installed, but even a rookie like me was able to get it installed and functioning. I couldn't get GNOME to load, it said something about client didn't have access rights, but linuxconf ran great. That was my biggest hurdle. Looks from there webpage that this works on Windows too. I use PCAnywhere on them, but I may check this out further. Thanks Again, Very Helpful!

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Remote Administration

by Bruce Timberlake In reply to Remote Administration

I see by one of your replies to an answer that you are mostly interested in setting up mail aliasing (converting one recipient name to another). I'm assuming you're running Sendmail as your Mail Transfer Agent (MTA)? If so, you will need to look in your /etc/sendmail.cf file to see what the aliases file name is (type "grep AliasFile /etc/sendmail.cf" -- you'll see something like AliasFile=/etc/aliases). You then want to edit that alias file with a text editor like vi or emacs and make an entry for your local username -- let's say username 'bob' -- that looks like this:

bob: bob@otherserver.com

This will redirect mail coming to bob@yourhost.com to bob@otherserver.com.

Then you save the changes to your file (ESC :wq in vi, or Ctrl-X Ctrl-S in emacs).

Sendmail can be very complicated to understand. If you are still in contact with your former sysadmin, and he's telling you to "learn the files and change them by hand" ask him to at least tell you what files to change for agiven task. That shouldn't take too much of his time, and will at least start you down the path to learning it yourself.

Tools like webmin and linuxconf can also be a boon to inexperienced users; you will have to do a little research online to learn about them.

http://www.linuxnewbies.org/ is a great site for new Linux users. They have a collection of "Newbie-ized" help files that are much easier to understand than most generic Linux HOWTOs.

I also recommend reading books like "Running Linux" (http://www.oreilly.com/catalog/runux3/) or "Linux Network Administrator's Guide" (NAG) (http://www.oreilly.com/catalog/linag2/).

Good luck!

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Remote Administration

by Mark In reply to Remote Administration

Your info was helpful but a prior answer gave me the EXACT answer I was needing to remotely run linuxconf. Thanks for the info.

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