Buna Dizzy, Pana acum nu auzisem de ele dar ar fi interesant de aflat care este cel mai sigur din punctul de vedere a separarii proceselor si al securitatii. Andy probabil doreste sa invete diferite distributii dar pe mine ma intereseaza ca daca root-ul virtual este compromis sa fie aproape imposibil sa obtina root in server host sau sa schimbe route si altele. La un moment dat si redhat a oferit un kernel compilat cu support uml. Pe de alta parte UnixWare rula linux in chroot.
UML este interesant din punctul meu de vedere ca filesistemul este intr-un fisier si exista fisierelor-filesistem de tip copy-on-write (COW). The way to share a filesystem between two virtual machines is to use the copy-on-write (COW) layering capability of the ubd block driver. As of 2.4.6-2um, the driver supports layering a read-write private device over a read-only shared device. A machine's writes are stored in the private device, while reads come from either device - the private one if the requested block is valid in it, the shared one if not. Using this scheme, the majority of data which is unchanged is shared between an arbitrary number of virtual machines, each of which has a much smaller file containing the changes that it has made. With a large number of UMLs booting from a large root filesystem, this leads to a huge disk space saving. It will also help performance, since the host will be able to cache the shared data using a much smaller amount of memory, so UML disk requests will be served from the host's memory rather than its disks. Probabil solutia cea mai buna este cea mai simpla ca implementare si care in acelasi satisface toate cerintele. Multumesc dizzy, Radu Sunday, October 5, 2003, 9:39:28 PM, you wrote: drn> -----BEGIN PGP SIGNED MESSAGE----- drn> Hash: SHA1 drn> On Sun, 5 Oct 2003, RoLinux wrote: >> Buna Andy, >> Solutia care permite rularea linux in user-mode este UML (User-Mode drn> ^^^^^^^^^ >> Linux) http://user-mode-linux.sourceforge.net/ - "vmware pentru linux" drn> Aceasta este "o solutie" si nu solutia asa cum ai spus tu. Eu cunosc cel drn> putin doua inca: drn> - - vserver drn> - - sau pur si simplu linux normal si chroot drn> - ---------------------------- drn> Mihai RUSU Email: [EMAIL PROTECTED] drn> GPG : http://dizzy.roedu.net/dizzy-gpg.txt WWW: http://dizzy.roedu.net drn> -----BEGIN PGP SIGNATURE----- drn> Version: GnuPG v1.2.3 (GNU/Linux) drn> iD8DBQE/gIGCPZzOzrZY/1QRAqLzAJsEQicOL+Yrv4qtyAmYHrD1CJ9MdwCggLLK drn> vt3ZBRZM4QZGmTK5cFKhQvw= drn> =cFH9 drn> -----END PGP SIGNATURE----- drn> --- drn> Detalii despre listele noastre de mail: http://www.lug.ro/ -- Best regards, RoLinux mailto:[EMAIL PROTECTED] --- Detalii despre listele noastre de mail: http://www.lug.ro/
