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Sometimes my friend give me root access to his CentOS VPS to help him install some programs and he leaves. Sometimes I mess with it, but I don't have the login information for Parallels Virtuozzo Containers, so can I clean the VPS using SSH?
It's faster than formatting the VPS and re-installing the OS.
You could always take a backup before you being work and revert the changes after the face. rsync is one potential tool you could use to do this.
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I want to test some keyloggers in order to see how they work.
If my host OS is clean, and I install the keyloggers on a guest OS running in VirtualBox, will the keylogger be able to log the keystrokes and screenshots in the HOST OS?
I think I know the answer to this question but I just want to make sure.
Unless your VMs are broken, key/screen-loggers will be fully contained in the VMs and will gain no access to the host OS keyboard/screen data that's outside of the VM.
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Hi everyone.
I recently purchased a VPS with CentOS 5.3!
However, I want it to run on Ubuntu. How do I convert the system to Ubuntu?
I guess the best you can do is to ask system administrators of the company you purchased your VPS from. They may do it manually and backup data on your VPS you may want to save.
This option also might be accessible on the control panel of you VPS provider.
Reinstalling OS by hand on your VPS may result in a lot of headache and I wouldn't recommend it.
Just install Ubuntu; it doesn't matter what's already installed.
If you have any data on the machine that you care about, back it up first.
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Are there any pre-installed virtual machine-based ununtu linux boxes that I can directly download and use ?
virtualboxes.org
I've used them in a pinch and never had aproblem. They are pretty basic but they are a good start. I personally just do an install from an ISO unless I am really in a hurry. It is fast and I know exactly what I am going to get.
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Reference: https://projects.centos.org/trac/livecd/wiki
I am not able to find what the LiveCD means?
Does it mean that I can run the OS on the CD without any installation on the local machine?
A live CD, live DVD, or live disc is a complete bootable computer operating system which runs in the computers memory, rather than loading from the hard disk drive
http://en.wikipedia.org/wiki/Live_CD
This gives you the ability to try the OS without having to install it
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One of my servers just had the memory exhausted by a load of Perl scripts, we use plesk and they seem to have appeared under the /var/www/vhosts/domainexample.com/cgi-bin/ directory, I managed to stop all of the processes and delete the scripts but I have absolutely no idea how they would've got there.
Can someone point me in the right direction in order to prevent further attacks?
Who should have access to your webserver machine?
Does this include the owner/operator of domainexample.com?
Do you expect the owner to be placing cgis on your server?
Does domainexample.com need to run cgis?
does domainexample.com need to run perl?
You might want to start researching here:
http://httpd.apache.org/docs/current/misc/security_tips.html