I am staying in an apartment that has building-wide internet access through a hard-wired ethernet jack. It never worked property, but I was able to get an IP address to access the net through releasing and renewing the IP address. However, that has stopped working and I spoke with the administrator who gave me a static IP to use, a subnet address and a router address. However, he did not provide me with the DNS server address. Is there anyway to figure out the DNS server address based on the static IP or the router address?

 

whats the IP address?

 

The IP he gave me was 173.0.31.122

 

IP address: 173.0.31.122
Reverse DNS: [No reverse DNS entry per chia.arin.NET.]
Reverse DNS authenticity: [Unknown]
ASN: 0
ASN Name: IANA-RSVD-0
IP range connectivity: 0
Registrar (per ASN): Unknown
Country (per IP registrar): *U [[Unknown]]
Country Currency: Unknown
Country IP Range: 128.0.0.0 to 255.255.255.255
Country fraud profile: Normal
City (per outside source): Unknown
Country (per outside source): -- []
Private (internal) IP? No
IP address registrar: whois.arin.net
Known Proxy? No
Link for WHOIS: 173.0.31.122

 

Hmmm, maybe try the router address to get the DNS info? 173.0.31.1?

 

No match found for 173.0.31.1.

 

4.2.2.1
4.2.2.3
4.2.2.4
4.2.2.5

all work.. To see who servers they are just look at the PTR

[homer]$ dig -x 4.2.2.2

; <<>> DiG 9.2.4 <<>> -x 4.2.2.2

;; ANSWER SECTION:
2.2.2.4.in-addr.arpa. 86254 IN PTR vnsc-bak.sys.gtei.net.
1.2.2.4.in-addr.arpa. 86265 IN PTR vnsc-pri.sys.gtei.net.
3.2.2.4.in-addr.arpa. 86247 IN PTR vnsc-lc.sys.gtei.net.
4.2.2.4.in-addr.arpa. 86252 IN PTR vnsc-pri-dsl.genuity.net.
5.2.2.4.in-addr.arpa. 86400 IN PTR vnsc-bak-dsl.genuity.net.

 

Mine is the same as the router address.

 

Yeah, but it sounds to me like the router isn't doing dns forwarding or recursion. Based on the rest of what he described, it's all kinds of fucked up. The servers I posted are root servers. If they don't work, port 53 is blocked... which would kill anyone's surfing experience if there's not a DNS server on the local subnet that you can use.

 

None of those DNS servers are working. I think that the internet is uber fucked up in this place. And the IT guy is absolutely worthless -- and I empathize with IT personnel being drastically under appreciation.