On occasion /dev/null on one of my virtual servers goes bad. It becomes:
-rw-r--r-- root root
Which causes all kinds of horrible issues, The quick correction for this is to re-create the device. This should work on most environments including native, OpenVZ, Parallels (Virtuozza), etc.).
sudo rm /dev/null sudo mknod /dev/null c 1 3 sudo chmod 0666 /dev/null
If all worked correctly then /dev/null will be (as seen with
ls -la /dev/null):
crw-rw-rw- 1 root root 1, 3
I have not found out why this is happening. Since I do not typically run as root there is something very odd going on.