I want to make changes to httpd.conf. Specifically, in a section that is OUTSIDE OF the virtual Host sections in httpd.conf… Can I make these changes by directly editing httpd.conf? Will this affect Webmin/Virtualmin?
Also, is there some GUI screen in Webmin to make changes to httpd.conf?
Webmin is really quite clever when it comes to parsing config files. It parses what it understands, presents it in its edit boxes, and leaves the rest untouched when modifying the file.
So yes, Eric is quite right.
Though while in this case it should be no problem, you should pay attention when you plan to manually edit other things. There might be some that can cause trouble when doing it behind Virtualmin’s back, e.g. directly editing a virtual server owner Webmin user account.