Welcome to IPCT. If you haven't already done so, read the WiKi in the bllue title bar at the top of the page. Study the Cliff Notes very carefully because they are loaded with important information on what to do and how to do it. Read, plan, study and ask questions first. It'll save you time, frustration and money. Read reviews of the cameras you might think will work for you before buying them, more time, frustration and money saved.
1) If you do not have a wired monitored alarm system, get that first
2) Use Dahua starlight cameras or Hikvision darkfighter cameras if you need good low light cameras.
3) use a VPN to access home network (openVPN)
4) Do not use wifi cameras.
5) Do not use cloud storage
6) Do Not use uPNP, P2P, QR, do not open ports,
7) More megapixel is not necessarily better.
8) Avoid chinese hacked cameras (most ebay, amazon, aliexpress cameras(not all, but most))
9) Do not use reolink, ring, nest, Arlo cameras (they are junk), no cloud cameras
10) If possible use a turret camera , bullet collect spiders, dome collect dirt and reflect light (IR)
11) Use only solid copper, AWG 23 or 24 ethernet wire. , no CCA (Copper Clad Aluminum)
12) use a test mount to verify the camera mount location. My test rig: rev.2
13) (Looney2ns)If you want to be able to ID faces, don't mount cams higher than 8ft. You want to know who did it, not just what happened.
14) Use a router that has openVPN built in (Most ASUS, Some NetGear....)
15) camera placement use the calculator... IPVM Camera Calculator V3
16) POE list PoE Switch Suggestion List
This is an intermediate / newbie guide for people just starting out looking for a surveillance setup. I know this setup might not be for everyone and there are many options. You can find a lot of this information in the Wiki: IP Cam Talk Wiki | IP Cam Talk A great place to start in the Wiki...