2
votes
1answer
33 views

No external network access to virtualbox CentOS6.5

I have CentOS 6.5 running locally in virtualbox. I set it up and everything was working perfectly. I came back after the weekend and I noticed the computer was frozen so I had to do a hard restart. ...
1
vote
1answer
1k views

how to setup subdomains for AWS EC2 Ubuntu Instance?

I am trying to setup subdomains for my AWS EC2 ubuntu instance, but without enough knowledge I couldn't proceed anymore. I have a parked domain name example.com on a domain name service provider. My ...
-1
votes
1answer
49 views

Recognizing when my machine has the IP of someone else [closed]

From times to times my computer is very slow in accessing internet or going to the network. Few colleagues of mine suggested that my machine might have the same IP of another one and this would cause ...
0
votes
0answers
51 views

How do I figure what process is caching DNS

There seems to be some form of DNS caching on my machine as my networking scripts continue to give gaierror even after a broken connection has been reinstated. There is no nscd installed and dnsmasq ...
1
vote
0answers
183 views

Attempting to DNS resolve / relay an IPv6 address for a host

I have a network switch doing IPv6 DNS relay to a Linux box (3.0.4-gentoo #7). The packets (DNS request) are arriving fine at the Linux box. Where I'm stuck now is how to resolve those, either by ...
0
votes
2answers
150 views

Nameserver not visible from the internet

I'm setting up a dns server using Bind9. It seems to be functioning properly when i use nslookup locally, but I am unable to connect to it from the outside world. I've confirmed that iptables is not ...
3
votes
1answer
3k views

Cant resolve hostnames except using nslookup/dig in CentOS [resolved]

I am unable to resolve hostnames, except using dig/nslookup. Declaring hosts in /etc/hosts works fine. DNSmasq nor bind is running. Below is the output of tcpdump port 53 when running dig ...
1
vote
0answers
489 views

Fedora join to AD DS (svr 2008): NT_STATUS_INVALID_COMPUTER_NAME

I have been attempting to join my Fedora machine to my 2008 AD DS domain (testdomain.lcl) for some time now. I have followed this article: http://weblog.bignerdranch.com/?p=6 But with no luck. I ...
2
votes
1answer
274 views

Simple Internal DNS Set-up

I have a few domains pointing to my router which then forwards them onto a server within my firewall. The server is running apache2 and everything works well - my website pops up. I have set up a few ...
3
votes
3answers
1k views

How to enable TCP for DNS resolution?

I've been doing some reading about this, according to what I understood this is possible, but HOW??, I know UDP is much much better for DNS resolution but because of so many issues an restrictions, ...
0
votes
2answers
1k views

Bind apparently receives responses from queries but then does nothing with them

Basically, I'm attempting to set up a DNS server that points to two other internal DNS servers. Internal DNS servers: 192.168.0.4 // 192.168.0.5 My box: 192.168.97.6 .. name is kerrigan.zipp I've ...
1
vote
2answers
2k views

Difference between /etc/hosts and /etc/resolv.conf

What is the difference between /etc/hosts and /etc/resolv.conf? Also, is there a good documentation that explain all these configuration files. Thank you. Bala