What other unique identifier's than IP address

I asked someone about other unique identifiers that one can use along side ip address, he mentioned system key or something. He said is built in every computer.

Please does such thing exist and if yes how can one call it using php
Am just looking for strong unique identifiers that i can compliment the ip and session with.

You can’t access a PC using PHP as it runs on the server.

But are there other identifiers apart from ip?

We lost our conversion because he sounded something like can be archived via php but maybe not system files or code or user agent but something similar

I’m not sure there is, and IP is not unique anyway. That’s why you tend to ask people to log in.

But then you don’t say what you’re trying to achieve…

What is the real problem you are trying to solve?

Am just trying to archive a strong loggin system, atleast secure enough for financial site.
Use of session and session hijacking gives me worries.
I also want to secure admin loggin based on certain elements

Hackers steal password and login details, they hijack session id.
Apart from google authenticator or sms otp that secures login.
Am looking for something built inside a computer that requires you must login through that computer to access admin rights

Why do these options not work for you?

Are they flawless? Like 100% secured?
I used them on wordpress back then but got penetrated couldn’t tell how

No method of security is every 100%, that is why it is crucial to encourage users to keep strong passwords and change them often. While these methods are not foolproof, they are very good.

1 Like

The various financial sites I use (as a customer) are dopping cookies on my machine, remembering what browser I use, etc, and flagging any changes from login to login by making me verify I’m me though sending me a code in email/sms/phone call.

1 Like

The general theorum goes that there are Three Factors of Authentication:
Something you Know;
Something you Have; and
Something you Are.

The idea behind Two-Factor (or Multi-Factor) authentication is that it’s more secure to require multiple factors in order to access secure information.
When in doubt, to the youtubes…
Tom Scott discusses Multifactor Authentication

You would have to, effectively, write an authenticator app that runs on the user’s computer. A browser is not that app.

It’s worth pointing out that an IP address isnt a unique identifier either.


Exactly. Think VPN.


Exactly what i had in mind, even if is just for the admin account.
Then i implement sms, and google auth for users with the use of cookie to track login from different computer and query them for more identification when it does happen.

Thanks everyone your contributions went a long way in addressing my needs.

But someone can not have same ip address when accessing a site?
Like same ip visiting my site from different computers?

Yes i will have dedicated vpn for admin accounts

Nah, I meant that people using the same VPN will potentially have the same IP address and that IP addresses are therefore not a perfect unique identifier.

But mostly the problem is not in the process of authenticating loggin details, is most times after the user has pass the login validation process including google auth and sms.
So far what we have discussed so far is the validation process to login a user.
But thats not where the big problem is,
An attacker waits for him to just steal his session after the user have gone pass the validation process.

This is how is been done.
A hacker installs a rat on your system.
Then waits till you login, he will know that you are logged in if you visit certain dashboard pages.
Then hijacks your session and access your account with your already active session.

So hanging everything to session And session destroy is something i am finding uncomfortable with.
Thats why i need something else to merge with session.

Not necessarily for validation purpose but for the life span of an already validated sessions or account.

Is then of no use, because my security workflow can only allow one ip for a session and for an active user account.
If someone logs in with that ip no other account can log in with same ip until the first one logs out.

Thats why am more concern about how this ip came and how really does internet service providers assign their ip to users.

If we are on a shared wifi or using same vpn means we are on same ip?

That’s where the weakness lies, not in the web apps but in allowing someone to install a rat on your computer.