How do I prevent Bitdefender from cleaning out the 'hosts' file?

Kindly follow the instruction in below stated bitdefender forum link. It will help you to disable scan host file option.

https://community.bitdefender.com/en/discussion/90772/hosts-file-access

Regards

Thank you. That discussion was obviously started by someone who had found the same earlier link (no longer valid) as I had. I have now disabled 'Scan hosts file'; it remains to be seen what happens when I re-start my computer. I remain puzzled, because scanning the hosts file shouldn't result in it being emptied of all content, surely?

I have a local server for testing web sites, and my hosts file is vital for accessing those sites from my browser. I cannot allow it to be emptied all the time.

Hello @ramasaig,

Normally, the hosts file shouldn't be modified. Are you still encountering this situation after disabling the "Scan hosts file" option and restarting the device? Kindly let us know.

Thanks!

After a bit of experimentation, a few days ago I switched the 'Scan hosts file' option ON again, and so far all has been OK. I've made a separate backup copy just in case...

The previous hosts file contained some stuff that had been inserted (automatically) by some other program (name lost), and it may have been this that Bitdefender objected to. Having removed it, all seems well.

I would still argue that Bitdefender shouldn't just empty the hosts file without issuing some warning?

@ramasaig thank you for following up on this matter.

There are very rare cases where hosts file would require any modifications, but generally speaking it's pretty dodgy to tamper with. Just in case this resurfaces, I would advise to get in touch with our engineers for further advice. You can reach them by choosing one of the contact methods available here:

https://www.bitdefender.com/consumer/support/

Best regards

That doesn't accord with my experience. I run a local Apache server on my computer for web site development. In order to display the local sites in my browser I have to list them in the hosts file (as well as configuring Apache v-hosts).

So my hosts file looks like this (first five lines):

127.0.0.1   localhost

127.0.0.1   mullbed2

127.0.0.1   mullbed3

127.0.0.1   gigaplus2

127.0.0.1   mullbed

127.0.0.1   creichhall

To show those sites in my browser I type (e.g.) 'http://mullbed2

Bitdefender was deleting all those lines. But it's OK now that I've removed the other stuff that was added automatically by some other program. I've lost the name of that program, but I think it was one that claimed to reset all links to 'unread'. Possibly called 'Unchecky' ?

Of course, once I've made those entries 'hosts' doesn't require further alteration, which is perhaps what you meant?

Regards,

Tim Dawson