Not every writing style allows for "Ibid." and some are phasing it out to improve clarity:
Use "Ibid." alone if the page number is identical to the previous citation. Not every writing style allows for "Ibid
If you tell me which (Chicago, Turabian, etc.) you're using, I can give you the exact formatting rules for your paper. Ibid: Unveiling The Meaning And Usage Of This Acronym - Ftp etc.) you're using