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I just love it when a problem has so many good solutions from which to choose! Thanks so much to all who responded. I think I'll try a couple of the suggestions. Eventually, I'd like to develop an "OPAC on a stick," so to speak, a flash drive with a minimal Linux distro on it. Boot from it, it takes you through a series of questions about your network, your catalog URL, etc, and when finished, you have a working OPAC. For remote management, there's always SSH, but I'd throw in Ajenti and kill the extra TTY logins to prevent possible patron mayhem. I had looked into Porteus long ago but I seem to recall having an issue that caused me to abandon it. While I'm sure that's no longer the case, I prefer not to have to set up another server. I also like the idea of having a proxy server return custom messages, but again, if I can achieve the desired result without an additional system to maintain, that's my goal. I'll report back on what my machinations yield. Thanks again. Have a most excellent weekend, all! John Lolis Coordinator of Computer Systems 100 Martine Avenue White Plains, NY 10601 tel: 1.914.422.1497 fax: 1.914.422.1452 https://whiteplainslibrary.org/ *“I would rather have questions that can’t be answered than answers that can’t be questioned.”* — Richard Feynman <https://click.fourhourmail.com/5qure95xkf7hvvo93wh2/7qh7h8h05vr4zrtz/aHR0cHM6Ly9lbi53aWtpcGVkaWEub3JnL3dpa2kvUmljaGFyZF9GZXlubWFu>, theoretical physicist and recipient of the Nobel Prize in Physics in 1965 On Thu, 8 Feb 2024 at 17:39, Sove67 <[log in to unmask]> wrote: > Hi John, > > Barring a more elegant solution, you could edit the .xhtml file that > Firefox redirects to when it reaches a net error (you can view this by > visiting the following "url" using firefox: > *about:neterror?e=dnsNotFound*). > > The accepted answer here > < > https://superuser.com/questions/1792996/customize-file-not-found-page-in-firefox-114 > > > explains where to find that .xhtml file, inside the omni.ja archive. > > I've attached a custom omni.ja archive you could inject, and examples of > how it displays now vs how it used to display. If you plan to use this, > please save a copy of the original omni.ja file that you need to overwrite! > omni.ja > < > https://drive.google.com/file/d/1aExDyrFxdE0svkRZELAA2Zg03PHXtnwo/view?usp=drive_web > > > [image: Example.PNG] > [image: image.png] > > Best of luck, > Kaleb A. (Langara LIT Student) > > On Thu, Feb 8, 2024 at 1:10 PM Lolis, John <[log in to unmask]> > wrote: > > > Prithee, might one of you be able to point me in the right direction with > > regard to modifying a browser error message, specifically a DNS > error/site > > not found message? > > > > Here's the rub... in an effort to prevent use of our OPACs as public > access > > computers, I've modified their DNS settings so that they only look to > > themselves for DNS queries. In their hosts file, I only added entries > for > > our catalog, our website and our museum pass reservation site. > > > > So this effectively prevents access to all other sites (unless of course > > someone happens to know the IP address of another site). > > > > The problem is that the browser returns the DNS error/site not found > > message, and there are no browser controls to go back since it's in kiosk > > mode. We have a label advising patrons to press ALT← to go back to the > > previous page, but what I'd like to do is use a hex editor to modify the > > default browser error to communicate the same thing. > > > > So my question is, does anyone know where I can find those messages so I > > can edit them? I've searched all sorts of Firefox files to no avail so > > far. I'm not completely averse to using a different browser, although my > > preference is to *not* use Chrome or Edge. > > > > I also realize that whatever string I replace the error message with, it > > must be the same length (this brings back memories of working at Prodigy > > and editing command.com in MS-DOS so that it would return Bad command, > you > > idiot!!). > > > > hmmm... as I write this, now I'm thinking of utilizing a redirect page of > > some sort, one that displays advice to the patron, then returns to > > wherever. > > > > Thanks much! > > > > John Lolis > > Coordinator of Computer Systems > > > > 100 Martine Avenue > > White Plains, NY 10601 > > tel: 1.914.422.1497 > > fax: 1.914.422.1452 > > > > https://whiteplainslibrary.org/ > > > > *“I would rather have questions that can’t be answered than answers that > > can’t be questioned.”* > > — Richard Feynman > > < > > > https://click.fourhourmail.com/5qure95xkf7hvvo93wh2/7qh7h8h05vr4zrtz/aHR0cHM6Ly9lbi53aWtpcGVkaWEub3JnL3dpa2kvUmljaGFyZF9GZXlubWFu > > >, > > theoretical physicist and recipient of the Nobel Prize in Physics in 1965 > > >