Lost DNS server info

[gopher3511]

Ok I'm not the world's best networking specialist more of a hardware guy. But I did a entire office upgrade for a company as far as computers go. Every computer is networked more so like a workstation where they see it and grab files. They use the whole IP Address: Subnet mask and default gateway Protocol. Then Below that in the network connection advanced tab they use the DNS server address. Well the one computer was semi new and we just upgraded a few pieces of hardware for his new software. Well I wrote down the Addresses like I did for all the other computers and my girlfriend accidentally tossed the paper I wrote them down on away. I know for a fact if I go into this office monday morning and plug in it will not access the internet. So my main question is, is there a way to obtain this address ? is there a way to find what is was? Or can it automatically detect a new one ? I'm stuck here and semi freaking out because that piece of paper was really all I needed to make it work. Any help would be greatly appreciated. Thanks in advance

 

[zyky]

When in a pinch, google's public DNS servers are easy to remember, 8.8.8.8 and 8.8.4.4
Most consumer routers end up doing DNS queries as well, so you could try setting the DNS IP the same as the default gateway.

 

[gopher3511]

I actually just contacted the guy that own's the company and he actually has all of them saved and what ones go to each computer. But I see what your saying on the google public DNS servers. But the way this is all set up in this office it is awful to be honest it's that bad of a networking job wires all over connectivity issues. I'm learning Networking as I go some of it is easy and some of it really does require a lot of homework.

 

[unksol]

Go in and get the DNS address off another computer on their network. They will all be the same. I wouldn't just use google or a random one, if they are deliberately setting it to something there's probably a reason as normally you wouldn't do that

 

[gopher3511]

Just an update everyone I did figure everything out. I grabbed the Information from the other computers Internet Protocol Version 4 (TCP/IPv4). Snagged all IP address, Subnet, and Default gateway. Then the DNS Preferred DNS server as well Alternate DNS server information which is the same on the entire network I just changed the IP address on the computer between 2-100 in the last box I believe and it worked. It just cannot be the same as any of the other computers on the network or you'll get that network error where they are sharing the same IP address and it conflicts. So in case anyone else has an issue this may help answer your future questions.