Hello all, Long time back, when I was new to linux, I wanted to see which distro is good. So I tried installed Ubuntu and Fedora on the same machine. To make my job easy, i made a common home partition and used the same in both.
I installed Fedora first and created my user and its home in this home partition. Then i installed Ubuntu and created a new user with the same name as the one in Fedora and pointed the home directory to the existing one. Now when i logged in i got an error that my home directory was inaccesible. So i went to failsafe terminal login and did 'ls -l' from '/home'. What i found was that by default Fedora assigns UID & GID as 1000 for the first user and Ubuntu assigns 500 for the same. So all i had to do was a small edit to the /etc/passwd and /etc/groups files and change these IDs to 1000 in Ubuntu and restart. Viola!!! I could share same settings and same desktop on both OSes. ______Sudarsan PS: I don't recommend installing two flavours of linux and sharing same home dir. I caused me a great deal of pain due some system level driver settings being different. On Wed, Jan 21, 2009 at 10:50, Vivek Khurana <[email protected]>wrote: > > Hi! > > The rule of thumb in computer security world is that the physical > access plays an important role in ensuring security of the system. If > I can get access to hard drive I can do a lot more. The writeup you > posted has nothing to do with Linux security, it is a filesystem level > feature. You need not even switch users but you can mount the host > drive and get access to data as long as you have sufficient access. > The Linux kernel's job is to ensure no one with insufficient > privileges can access the data and the kernel is doing its job without > any flaw. When you login as root, you have all privileges and freedom > to access any device attached to your system, hence you can access > host drive too. So will you please point out how is linux insecure ? > > Before posting FUD it is better to do some basic research. > > regards > Vivek > > On Jan 21, 12:09 am, Robin Paul <[email protected]> wrote: > > Most people in this group wud simply hate reading this, but this is true. > No > > matter how u set ur permissions in ur desktop linux they can be broken > > easily with the help of a live CD. > > > > I used Hardy live CD, logged in to my own comp. using it which > > has got Hardy 8.04 in hdisk. the CD boots into Live session user which > does > > not give u access to the root folder of the hdisk Linux and other users. > U > > can bypass it easily, go to the Administration->user and groups, click > root > > and then on properties tab and type a desired password. Go to > > administratore->Login Window , click on security tab and enable login of > > administrator thru GDM. Then go to Quit-> Switch user. Type "root" as > > username and then d pswd u had set earlier, u log in as root in a foreign > > computer. Then u can access any part of the host computer at will. Thus I > > use Linux to break Linux's security. Linus Torvalds has some serious > > thinking to do!!!!!!![?]. > > Ofcourse there r obvious ways to stop a live CD. 1st set a password in > the > > BIOS , second is to encrypt ur hdisk. But, while the first is not a merit > of > > Linux the second has its own problems. If the hdisk Linux crashes due to > > some reason it becomes very difficult to retrieve the data in the hdrive > > using a live CD > > > > Dont think I am anti-Linux. This is just an experiment which I carried > out. > > Ubuntu is the best operating system I have ever used. And I will always > be > > interested in it. But this is a problem which needs to be addressed > > therefore I have raised it. > > > > Do try this experiment with ur own distro and let me kno. > > > > Robin > > > > -- > > Robin Paul > > > > Permanent Address: > > 1469, Poorvanchal Complex > > J.N.U Campus > > New Delhi - 110067 > > Phone:011-26741386 > > e-mail:[email protected] <e-mail%[email protected]> < > e-mail%[email protected] <e-mail%[email protected]>> > > Mobile No. - 9968047983 > > > > 360.gif > > < 1KViewDownload > > > --~--~---------~--~----~------------~-------~--~----~ l...@iitd mailing list -- group http://groups.google.com/group/iitdlug -~----------~----~----~----~------~----~------~--~---
