Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [dns-lookup]

32 questions
0
votes
2 answers

cname record to rhcloud.Com not working anymore

I have a website hosted at rhcloud.com. I added 2 years ago a cname on my domain name dp-global.vn to redirect to the website (gdp-robertduy.rhcloud.com). Today it is not working anymore and the website via my domain name is not reachable. I just…
Pierre D.
  • 1
  • 2
0
votes
1 answer

DNS lookup to whois.verisign-grs.com returns SERVFAIL

I'm having a problem trying to look up a certain DNS name on the internet. For some reason I keep facing a SERVFAIL thought the correct result is displayed - like the DNS name is being resolved twice (external/local?). I have no trouble looking up…
SteffenNielsen
  • 477
  • 4
  • 15
0
votes
1 answer

Why does this name server resolve incorrectly?

Why does this ENom name server resolve incorrectly? Earthlink is related to my ISP. $ nslookup yahoo.com dns1.name-services.com Server: dns1.name-services.com Address: 98.124.192.1 Name: yahoo.com.earthlink.net Address: 69.64.147.243 $…
Chloe
  • 1,164
  • 4
  • 19
  • 35
0
votes
1 answer

how to change my domain to point Amazon AWS EC2

I have a domain in 1and1.com , I have been using it with hostgator hosting. Now I want it to point to my amazon aws ec2 instance. Here are the steps i have followed. I logged into AWS and chose Rout 53 The I have created a Hosted Zone and gave my…
Mohammed Fawzan
  • 103
  • 1
  • 4
0
votes
1 answer

Incorrect DNS Records

This is a bit perplexing to me. When I do a NSLOOKUP on 10.0.0.17 it comes back as "ProductionServer01.domain.com" which is a decommissioned server. 10.0.0.17 is actually ProductionServer02.domain.com, and when I NSLOOKUP that hostname, the correct…
David Liese
  • 145
  • 1
  • 10
0
votes
1 answer

Getting a reverse lookup answer from nslookup but not from dig

So if I use dig to do a reverse lookup I get: $ dig 71.74.56.122 ; <<>> DiG 9.6.0-APPLE-P2 <<>> 71.74.56.122 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41277 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1,…
ennuikiller
  • 838
  • 8
  • 8
0
votes
1 answer

BIND9 local reverse lookup with public IPs - is the setup broken or is the setup faulty?

We are having a prelaunch-site to test DNS (and other services) before going hot. I've never involved public IPs here previously and it may not work as I've intended. We have a /29-net from our ISP that are public IPs. 121.24.124.144/29. To test our…
Joppe
  • 11
  • 4
0
votes
2 answers

What is the difference between DNS Lookup and DNS Resolution?

I have traversed through many websites, tutorials, documentations or personal blogs; yet, I couldn't find an exact and clear (scientific) definition (or distinction) of these two: DNS Lookup process DNS Resolution process My understanding (what I…
Giorgi Tsiklauri
  • 109
  • 1
  • 3
0
votes
0 answers

DNS lookup failing even though tcpdump shows that nameserver has responded

DNS lookup on some of my EC2 instances have been failing intermittently. A reboot resolves the problem but it goes back to the same fail-state after a few hours (or after a few days), and remains in that state until a reboot happens When the failure…
SJH
  • 1
  • 1
0
votes
1 answer

DNS client vs Nslookup - doing a manual test of the DNS client for SRV records

There are various references (such as DNS can't resolve hostname; nslookup can or https://web.archive.org/web/20160525082756/http://homepage.ntlworld.com/jonathan.deboynepollard/FGA/nslookup-flaws.html or…
Badger
  • 31
  • 4
0
votes
1 answer

SPF Too Many DNS Lookups issue

In our scenario, We're running into an issue with our SPF records in route53. We are receiving SPF Too Many DNS Lookups because we are using multiple mail services. Is there a way to resolve this? I saw one thread stating to run a look up on the…
Santosh Baruah
  • 21
  • 6
0
votes
0 answers

nginx proxy_pass only when rdns resolves correctly

I have a nginx server on PC_A running as a proxy for a website hosted on PC_B. The server on PC_A provides rate limiting, buffer and cache services for the website. I would like to enable DNS lookup on PC_A and allow access to the server on PC_B…
JayD
  • 1
-1
votes
1 answer

Ping can not find any subdomain at all

Following shows the information of my virtual environment. computer name = spFull computer name = sp.spd.localdomain = spd.localInside DNS there is a Forward lookup zone, its name is spd.local and contians these: CName: name=*, Data=sp.spd.local,…
user217648
  • 99
  • 2
-1
votes
1 answer

Resolve-DnsName resolves hostname of IP, but nslookup fails

There are some IP address that nslookup can't resolve (both on Windows and Linux). Problem: I can find the IP of the hostname, but reverse lookup fails. PS C:\> nslookup.exe somehost2 Server: corpdns.mydomain.com Address: 10.248.2.1 Name: …
aviro
  • 144
  • 4
-1
votes
2 answers

DNS lookup fails if provided domain name ends with a slash

We have successfully run an office network with various Linux servers (Ubuntu) and Windows+Linux clients for several years now. One server acts as and internal DNS server using the DNSmasq light-weight DNS server package. And just today I found out…
Thomas Popp
  • 11
  • 3
1
2
3