We have a SharePoint 2013 on-prem installation, and we have a requirement that a section of one of the sites (specifically a list) be viewable by all users. No other part of this site is to be visible, with the exception of a single link (ideally in the left sidebar) that leads to a different SharePoint site (which is also accessible by everyone).
I can secure the list to an acceptable level, but since the permissions are not granted on the site, the left and top navigation bars are not visible. If I grant view access on the site level and secure all other elements of the site, both navigation bars remain unchanged (the user can still navigate to those locations, but they appear empty).
Is there a way to apply security trimming to links on the left/top sections? In the past I may have been able to accomplish this with audience settings, but that appears to have gone away for sidebar links.