“VXE protects host and particular subsystems, which work as
superuser and can have bugs.“
“Main problem with UNIX security is that superuser can do with
system anything he wants. There are programs (daemons) which work
with superuser privilegies, for example popd, sendmail, and
accessible from network (Internet/Intranet). There could be bugs in
any program, so intruder connects to such programs via network,
exploit existing bugs in it and get a control over all host.”
“VXE (Virtual eXecuting Environment) protects UNIX servers from
such intruders, hacker attacks from network and so on. It protects
software subsystems, such as: SMTP, POP, HTTP and any other
subsystem, already installed on the server. There is no need to
change configuration of existing software – just PROTECT it.”