Date: Fri, 11 Jan 2002 15:52:30 -0200 From: Fabio Yasusi Yamamoto <fabio@hostname.org> To: freebsd-questions@FreeBSD.ORG Subject: Re: Virtual Servers Message-ID: <3C3F265E.10403@hostname.org> References: <3C3E0523.A4EA7B1C@jwebmedia.com> <200201110619.g0B6JcO69567@blackbox.pacbell.net> <3C3EF0A5.DF26C000@jwebmedia.com>
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This is a cryptographically signed message in MIME format. --------------ms080508090009040502070609 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Joseph Koenig wrote: >I've so far gotten 2 responses that say to use jail, so I'm betting that >is the way to go, but let me explain a little further. By client I mean >one of my clients. So, what I'm looking for is a way to 'set off' an >area on the server so that it thinks there is only 128MB of RAM when >there's really 1GB and only 800MB of drive space when there's 30GB and >that it can only use 20% of the processor time. Those are just examples. >But this in little 'virtual' server, there would be an instance of >Apache, sendmail, MySQL, etc. that would only server that area. I guess >it would be one user, "virtualUser1" or something, that would be the >owner of all processes in that area. That way if my main apache server >goes down, this client (my business client) is not affected. I don't >want to lock resources so they can't be used by other parts of the >machine, but I do want to limit what the client (mine) has access to, in >terms of resources, and keep their processes completely seperate from >the rest of the machine. I think a combination of user limits and jail > memory limit can be done using the ulimit i have one 'virtual servers' from verio.net ( freebsd ): bash$ ulimit -a core file size (blocks) unlimited data seg size (kbytes) 28672 file size (blocks) unlimited max locked memory (kbytes) unlimited max memory size (kbytes) 40960 open files 150 pipe size (512 bytes) 1 stack size (kbytes) 28672 cpu time (seconds) unlimited max user processes 60 virtual memory (kbytes) 57344 they don't control cpu usage. --------------ms080508090009040502070609 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIINWjCC A2IwggLLoAMCAQICEAvaCxfBP4mOqwl0erTOLjMwDQYJKoZIhvcNAQECBQAwXzELMAkGA1UE BhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAxIFB1Ymxp 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