fedora 8 hacked?

[Sam Varshavchik]

tom lee writes:

> my machine was mounted as rw for directory "/", it works fine for a
> while for sending out emails.
> then I find the machine was changed to mount as read only for
> directory "/". I cannot create any files in the directory / including
> /tmp, nor can I send out emails of course. it complains the file
> system is read-only. running "mount" command shows the machine is
> mounted as "rw".  I checked no more log files modified any more under
> /var/log directory. reboot the machine, the problem is gone.
> 
> any possible the machine got hacked or is there a way to check what
> caused this problem?

Your root filesystem probably got corrupted. When the kernel detects 
filesystem corruption, the partition usually gets remounted read-only.

Run "shutdown -r -F now". This will reboot and refsck your root partition.


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