r/homedefense

Many more to go 😅

I just moved in a week ago and I honestly can’t remember if these were here before I left this morning for the day… it’s been a long week. Are these normal key scuffs or should I be concerned? None of the other apartments have these scuffs.

I was looking back through videos, just checking on the feral cats in the neighborhood and seeing who’s alive when I ran across this video on the 6th. They rang the doorbell two different times and you can tell the guy is coming in hot. I can almost but can’t quite pick up what they’re saying. I got a few words and I’m wondering if maybe somebody parked in their spot and they were thinking it was us. It wasn’t us. The reason I suspect it was that because they said something about it happening five times, I thought I heard the word toe, and the girl has keys in her hand like she just got home and couldn’t find somewhere to park.

I was looking at getting a security film for my rear sliding glass door to prevent glass shatter break-ins. Based on the fact that my sliding glass door has these accent strips, is that something that would be possible or would the window just break/shatter around those areas, allowing for easy intrusion?

I've got a weird situation, where I live out in the country. I've got a long drive that, lately, a number of people have been pretty cherry about coming up. The house is visible in the distance, but the road curves and you can't see that it leads directly to the house. When I confront them, I get the excuse that they were "lost" and "thought it was a dirt road". Which is obviously BS.

The weird thing is, these people don't seem like tweakers or garden variety thieves. They're usually older people (40+, sometimes older) who look like they're out driving around for whatever reason, in well kept newer vehicles. I do live up on a hill, so they may think they can get a nice view up here? But no, private property.

I'm not quite at a gate yet, as I appreciate the delivery vehicles making the trek and don't want to have packages left at the road even in a box.

But I would like to mark the entrance of the driveway to keep away the lookie-loos. I'm also putting up a couple security cameras and a driveway alarm (the drive-over type) so I know if anyone comes up the driveway and can immediately run them off. And will have their plate number to trespass them if needed.

I don't feel the need to be the crazy person with hostile signs; I think that would make me more of a target. However, I want to clearly remove the "I thought it was a dirt road" excuse.

I'm thinking of putting up one of those stone engraved signs at the entrance of the drive so it is clear that they're trespassing. But I don't want it to have anything on it that is a conversation starter, like a college logo, because these idiots would pretend that was an invitation. So I'm thinking just the street number or address.

Has anyone else dealt with marking the entrance to a private drive like this? What did you do that was neither ugly nor inviting?

Hi all,

Just tried my non-lethal gun, the LTJ 1.5 Alpha.

I live in France, I cannot own a gun except if going every x month to the shooting range etc etc.

Anyway, decided to purchase the highest rated and most powerful non lethal one I could find.

I have already fired with family that shoot professionally with several type of gun, 9, 22, 45 magnum so it’s not a first to hold and shoot.

But dude I thought what I had in hand was a toy.

I have just woken up the whole neighbourhood in this Sunday afternoon.

That shit is much more powerful than I thought.
18J, but the noise, the smoke, the recoil very close to reality without that metallic sound an smell.

I am still chocked damn !! They’ve done a great job here.

Someone I used to know in the army is now in SWAT and he mentioned this device. It basically just shoots a fire hose of pepper spray as a non lethal in more urban environments when you want to be really restrictive with shooting. It makes sense to me but I haven’t really done any formal training since I got out and this device is totally a new concept to me. I also can’t seem to find it anywhere. I need some practical advice for this geezer. I’d be willing to put in a few range days a month if it meant I could really up my options but I’m not even sure if it’s legal to own considering I can’t find it anywhere.

NVR vs DVR: Which Security Camera System is Better?

Any reason to pick IP over analog from a security perspective:

No. There is no security advantage of IP over analog for an offline recording system. Every security property that matters favors analog:

• No firmware to exploit ✓
• No command channel ✓
• No local network ✓
• No bidirectional communication ✓
• Physical access to cable gives nothing useful ✓

IP has zero security advantages over analog. IP has feature advantages (resolution, compression, SD cards, audio) but security is entirely analog's domain.

How much easier to attack IP vs analog via cable:

This is the precise question. Let me be exact:

Analog camera removed, coax cable exposed:

What attacker has access to:

• Raw analog video signal — they can watch the video feed
• 12V DC power wire — they can short it, cut it, or use it to try to damage power supply
• No network access whatsoever
• Cannot reach DVR command interface
• Cannot reach other cameras
• Cannot delete recordings
• Cannot modify DVR settings
• Cannot push malicious firmware to anything

Tools needed to do any of the above:

• Watch video: BNC connector and a monitor — trivial
• Short power: wire cutters — trivial
• Everything else: impossible regardless of tools

IP camera removed, ethernet cable exposed:

What attacker has access to:

• Full local network connection via PoE switch
• Can scan network and find all cameras and NVR IP addresses
• Can attempt to exploit camera firmware on any camera
• Can attempt to exploit NVR firmware
• Can attempt to delete recordings on NVR
• Can attempt to modify NVR settings
• Can attempt to push malicious firmware to cameras or NVR
• Can attempt to disable cameras remotely
• All of the above accessible from one cable

Tools needed:

• Laptop with PoE injector (~$20) and basic network tools
• Nmap for network scanning (free)
• Published CVE exploit tools (freely available for Hikvision/Dahua/Reolink)
• Knowledge level: intermediate — not expert

The difficulty comparison:

Attack	Analog coax	IP ethernet
Watch camera feed	Trivial	Trivial
Disable one camera	Cut cable	Remote command via network
Disable all cameras	Cut 8 cables individually	One command from one port
Access DVR/NVR	Impossible via coax	Possible via network
Delete recordings	Impossible via coax	Possible if NVR credentials known or exploitable
Modify settings	Impossible via coax	Possible via network
Push malicious firmware	Impossible via coax	Possible via published CVEs
Affect other cameras	Impossible via coax	Possible via shared network

Difficulty rating:

• Analog: attacking DVR via coax = essentially impossible
• IP: attacking NVR via ethernet = intermediate skill level, freely available tools

From what ive understood so far is that analog is the top security choice (due to the port from the cameras just physically not being able to accept any form of communication as it just acts as an analog sensor port) and ip is the convenience choice mainly but also adds protection against wiretapping. but that's it (as each camera being its own computer with exploitable firmware makes it an attack vulnerability to the whole system x however many cameras you have and however many different models you have each with separate different firmwares)

so using analog cameras to feed their own hdtvi splitters then from those splitters, feed separate systems (either an offline dvr for recording that cant be tampered with, or an online nvr connected to the analog cameras via analog to ip encoders, or preferably both via multiple offline dvrs hidden around your house for redundancy and safety purposes and the "decoy" that is actually connected to the internet for remote viewing which is preferably an nvr for better update support atm)

the alternative was an ip poe system that goes from offline poe cameras to a switch, then that switch feeds an offline nvr. the same switch also feeds a pi or something that can take the RTSP streams from the cameras and convert them to SRT, which then feeds a diy data diode (ethernet to fiber dual node converter but only plug in a single node cable for send and put a piece of tape over the receive side). then from the other side of that data diode a secondary online pi that takes from SRT streams for home assistant or whatever your preference for remote viewing and notifications as well as a backup redundant offsite cloud save
the downside being that if a camera is ripped off its mounting spot it can be used to manipulate your entire system including the offline "airgapped side"

both systems would have surge protectors/ground loop isolators/fiber adapters/individual line fuses to ensure the system cant just be easily fried all together from a single camera point with a taser or equivalent

anything im missing? or not considering? or literally anything?

EDIT:
apparently SRT wont work on a data diode?
found this instead
The most secure, protected option for streaming video over a DIY single-fiber data diode is MPEG-TS over UDP paired with Forward Error Correction (FEC) and Pre-Shared Key AES Encryption.

Because your single-fiber cable physically prevents a return path, standard two-way handshakes fail. This specific configuration provides robust security and stability:

1. The Core Streaming Protocol

• MPEG-TS over UDP: This is a pure "fire-and-forget" unidirectional protocol. The camera-side encoder blindly pushes video packets across the single fiber node without expecting or needing an acknowledgment (ACK) from the receiving node.

2. Error Correction (The "Protection" against Packet Loss)

• SMPTE ST 2022-1 FEC: Because the receiver cannot ask the encoder to retransmit a dropped packet, you must enable Forward Error Correction on the encoder. FEC appends mathematical redundancy data to the video stream. If a photon drops or a packet is corrupted across your DIY fiber link, the receiver uses this redundancy data to rebuild the missing video frames natively.

3. Stream Security (Data Confidentiality)

• Static AES-128/256 Encryption: Since dynamic key exchanges (like TLS/DTLS) require a bidirectional handshake, you must use static Pre-Shared Key (PSK) encryption. The video payload is encrypted at the encoder using a hardcoded key, pass-through across the one-way fiber link, and decrypted on the receiving node using the matching key.

Summary of the Setup Architecture

• Encoder Side (Transmitter): Configured to output a raw udp:// or rtp:// stream with FEC enabled and AES encryption turned on.
• Receiver Side (NVR/VMS): Configured with a matching listening port and the identical static AES key to decrypt and ingest the stream.