1. Virtual Machines vs. Virtual Hosts - Is it possible?
Date: Wed, 12 Feb 1997 18:14:21 -0500 (EST)
Subject: Sendmail / POP3 stuff
Resent-Date: Wed, 12 Feb 1997 18:17:03 -0500 (EST)
Need to set up 'virtual machines' rather than 'virtual domains'. The
difference would be that the 'virtual machine' would be fully capable of
virtual ftp, virtual e-mail, virtual www, etc., under its own root
directory. Ie: if you telnet to host1.com, you are really telneting to
masterhost.net, into directory /vitrual/host1. /virtual/host1 is set up
with chroot and can not be broken out of (For users who wish to maintain
thier own servers). the /virtual/host1 directory will contain its own
/etc, /usr, /var, /bin, etc... directories and config files.
Basicly, one master UNIX host that hosts several VIRTUAL UNIX hosts with
the ability for different config files, pop server, ftp server, etc for
My other option is to set up all the virtual stuff manually. (If the
above is not an option, or is too expensive). One problem that would
present itself is mail. Apache and wu_ftpd are capable of virtual hosts
with different root directories for each.
What about sendmail, can it be modified to save mail for different
domains in differant sub directories? And if so, is there a viable
solution for a pop3 daemon that can get the mail for the different
virtual hosts, with a seperate passwd file for each domain?
In other words:
Sendmail is hacked to save mail for somedomain users in
Otherdomain users in
and for regular users in
pop3d must recognize the difference between each domain, and get mail from
the apropriate sub dir for the virtual domain.
If / How can this be done? (On either a Sparc Classic / Solaris 2.5.1,
Pentium / Solaris x86 2.5.1, or Linux (1.2.13, 2.x or 1.3.83 kernals).
Thanks in advance.
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