Hi,
I have a problem with a Unix server (SCO Unix version 3.2). If this server is rebooted the own server name and it's IP address is removed from the host table.
How is this possible? How can i solve this problem?
Seems impossible and very strange.
Look at Change IP on SCO - it may help.
Make SURE you are saving the host file when done editing. Check that your entry is in there after finishing.
Do a ls -l on /etc/hosts - insure it's not a link to another file.
Do a checksum (command may be sum, checksum, or something else?) on the file after you edit it and are SURE the hostname and IP are in there. Save the info checksum gives you and compare it to the file after reboot.
You can put the hostname with a different IP AND the real IP with a fake hostname to see what it maybe looking at when it gets removed - this may help when trying to find what is deleting it.
Check your startup scripts - anything new? Did you recently change the IP or hostname (check the link for all the changes needed)?
Post back with anything further.
I still have not solved the problem:mad: 
FIRE
Did you try the suggestion? Did you use sum, checksum, or equivalent command on /etc/hosts before and after the reboot?