0
votes
0answers
46 views

Ping IP works, nslookup fails. New Kernel

I am compiling my own 3.14 kernel. I fear I may have left out some important networking feature to get DNS working. I can't resolve domain names. I can ping my DNS server. I can resolve using that ...
0
votes
1answer
74 views

Change the DNS server in etisalat USB modem

I need to use the open DNS : 208.67.222.222,208.67.220.220 in my network connection. I use etisalat 3.75 USB modem HUAWEI in my Ubuntu 12.04 PC. I had tried to add this DNS in : ...
1
vote
1answer
198 views

Configure multiple interfaces with different hostnames using DHCP and DNS

I have a machine running Ubuntu 12.04 Server with two interfaces connected (eth0, eth1) to the network. Our network is set up so that a FreeBSD based DHCP server hands out leases and registers the ...
3
votes
3answers
136 views

Can I set my Debian box to use OpenDNS nameservers if it uses DHCP?

I have a Debian box with this in /etc/network/interfaces: auto eth0 allow-hotplug eth0 iface eth0 inet dhcp auto wlan0 iface wlan0 inet dhcp wpa-ssid NetworkName wpa-psk NetworkPass and ...
2
votes
1answer
215 views

BIND9 as a DNS server refuses requests

I am trying to set up a DNS server on Amazon Linux using BIND9. It has to act as a master nameserver for a lot of domains. I am going desperate... I have imported all of the DNS zone files using ...
1
vote
3answers
254 views

/usr/bin/host not picking up changes to /etc/hosts even after reboot

I have a Ubuntu Server 12.04 (amd64) machine on which, when I change /etc/hosts, the changes aren't picked up, even after a reboot. I am using /usr/bin/host to test, but none of the other programs ...
0
votes
3answers
80 views

Why do two Ubuntu systems in the same network behave differently in DNS resolution?

I have two systems, both running Ubuntu 12.04, which are within the same network (connected by hubs without routing logic). Both systems are configured quite similar, but not identical. In particular, ...
3
votes
2answers
262 views

Converting Webserver Logged IP Addresses to DNS

I'm trying to use a bash script to process a webserver log file and replace any IP's it finds with their corresponding DNS hostnames. An example entry of a single line from the log file is: ...
4
votes
1answer
93 views

getaddrinfo() from shell? [duplicate]

When you call ping name.domain, it goes through both /etc/hosts and the DNS resolver to obtain an IP. It could be an IP hard-coded in /etc/hosts, or it could be one from the DNS server. It does so by ...
1
vote
2answers
263 views

Split DNS (bind9), match-clients any doesn't work?

I've been fighting with this for the last few days. A few of my entries have external and internal IP's. My internal network is 10.0.0.0/8. When I nslookup pc1.clase.net internally it responds with ...
3
votes
1answer
234 views

Bind9 — How to find which programs are making which dns lookups?

Using bind9 on a laptop shows lots of nonsense domains when network connectivity is down: Oct 18 19:56:18 lap3 named[1536]: error (network unreachable) resolving './NS/IN': 128.63.2.53#53 Oct 18 ...
4
votes
1answer
206 views

Why is my computer trying to send ICMP type 3 to OpenDNS?

In my firewall logs I see lots of entries like this. IN= OUT=eth0 SRC=192.168.1.105 DST=208.67.220.220 LEN=148 TOS=0x00 PREC=0xC0 TTL=64 ID=55705 PROTO=ICMP TYPE=3 CODE=3 [SRC=208.67.220.220 ...
3
votes
1answer
144 views

Apache Request Hangs For 2 Minutes Exactly

I am experiencing some odd behavior with apache. I have requests that are hanging for exactly two minutes. The request could be one file one time, and then a completely different file another time. ...
6
votes
1answer
536 views

resolve the server hostname of a dnsmasq server with multiple subnets

I have a self-made Linux router running dnsmasq. It has two different NICs through which clients are connected; one of them has the subnet 192.168.1. and one the subnet 192.168.2.. My ...
1
vote
1answer
218 views

Process calling getaddrinfo() at boot gets permanently stuck with bad /etc/resolv.conf?

I'm running pianod, a Pandora client/server, on a Raspberry Pi with Arch Linux ARM. I have pianod set up to run as a service at boot. It starts up before the network stack, so getaddrinfo() fails. ...
0
votes
2answers
250 views

Unix: How to Test Ip Address is resolved to name

Unix: How to Test ip Address is resolved to name. I need to check whether ip address can be resolved to name using DNS entry via shell script. Code: DNS_Lookup() { LOOKUP=$(nslookup $1) ...
3
votes
2answers
183 views

How to host a website on personal computer

I want to start hosting my website at my own computer as well websites of my friends too (say mini hosting platform). I learned Debian, Bind9 and Apache for this purpose. On my system everything is ...
0
votes
2answers
116 views

How to attach my domain with bind in real www

How to attach my domain with bind in real wwwI install bind9, with apache. By God's very grace every thing went smooth. my dig, host, nslookup and ping provide this info: my system ip address: ...
2
votes
1answer
69 views

How to property configure DNS . . . from a conceptual perspective

I'm not looking for actual tools or techical how to type answers here. I'm in a complex networking environment, and I'm trying to understand the constraints on my choice of a hostname / domain / DNS ...
2
votes
1answer
87 views

How can I be sure that access to my home server from my home network is not done via Internet?

As advised in this question: Network file-sharing between Linux and Android, I have decided to use ownCloud to store files on my home cloud server. However, my needs have changed a bit. I want to be ...
2
votes
2answers
417 views

I want to expose “easy” URL's for machines on a home network. Is custom DNS/BIND the answer?

I recently convinced my room mates to cut the cord and go cable free, and they've found it pretty great so far. I'm in the process of setting up a pretty sweet, mostly automated home theater setup ...
2
votes
1answer
465 views

Could not resolve host error

I'm using Arch Linux and I have a dynamic ip address with the use of dhcpcd. I can access websites through the google chrome but the problem is that I get 'could not resolve host' error when I run ...
3
votes
1answer
8k views

Ubuntu: How to configure DNS servers in /etc/network/interfaces correctly for resolvconf?

All examples I have seen of configurations (/etc/network/interfaces) showed that you configure an interface and then underneath that gave the dns-* lines such as: auto eth0 iface eth0 inet static ...
1
vote
1answer
419 views

No DNS on Debian wifi after unplugging the DNS cable

I have installed wheezy Release Candidate 1 to my old laptop (Benq Joybook A52) right now, and I have some problem with my wireless card (Atheros 5006). It can actually see the wireless networks, I ...
3
votes
1answer
248 views

Incoming/Outgoing seperation for VPN

My situation is that I want all my outgoing connections from my Debian server to pass through a commercial VPN service I've subscribed to, but I still want to run public-accessible services on this ...
1
vote
1answer
415 views

Command/scripts to check the Reverse DNS Lookup time

I am working on a project in which one master communicates with numbers of slaves. For that it has to make connection with hosts in network. But sometimes it hangs. I think that the reason behind is ...
2
votes
1answer
974 views

Static IP address shifting to 192.168.1.251

I have a system with a static IP address of 192.168.1.150. I configured /etc/network/interfaces manually (i.e. without using NetworkManager.) It is a web server hosting three sites. I am having ...
0
votes
2answers
483 views

Best way to find out what Linux Version is used on a Webserver

Is this feasible? Can I find out which distro is used to host specific webpages? Whois doesn't have info for this.
2
votes
2answers
899 views

DNS Master vs Slave and Primary vs Secondary

I'm a little confused about the difference between a "secondary name server" and a "slave name server" and a "primary name server" and a "master name server"   I understand that a slave name server ...
1
vote
1answer
283 views

How can I resolve local IPs to hostnames? [duplicate]

Possible Duplicate: How to make a machine accessible from the LAN using its hostname I have is a simple home network with a few machines connecting through DHCP. If everyone and their ...
6
votes
1answer
290 views

Why the difference between network addresses reported by hostname and ping?

I have tried hostname and ping in a cluster machine, with different outputs. I am wondering what is the difference between the two? For example, on the same machine, hostname outputs node4.XXX and ...
3
votes
1answer
346 views

Simplest way to set up multiple subdomains to separate VMs running on single host

Problem: I´m planning to set up several virtualized centos, rhel or ubuntu guest machines on a single centos host server (most likely using KVM). Each guest VM is running an instance of a webapp + ...
3
votes
1answer
399 views

Verbose DNS query to see DNS query order?

I typically determine the IP of a host by doing: $ host -t A example.com. Is there a more verbose version of this that tells me whats happening in the background, specifically the order of what is ...
1
vote
1answer
457 views

Using google DNS in netcfg

how can I set up my netcfg profiles to use the google DNS servers? I've tried IP = 'dhcp' DNS = '8.8.8.8' but that didn't cut it.
1
vote
1answer
2k views

DNS Issues on RHEL 6

I'm experiencing some DNS issues on a new RHEL 6 virtual machine. Ping is working fine to an IP, but the machine is unable to resolve any names. I've tried adding Google's DNS servers (8.8.8.8 and ...
5
votes
3answers
9k views

Reverse DNS lookups slowing down network operations on LAN

Environment My LAN setup is quite basic: A router connected to the ISP's modem and the internet My development pc directly connected to the router The router provides DHCP but does not run its ...
2
votes
2answers
1k views

Domain resolve problem with stock Debian

I have a simple install with Debian as a guest in Virtualbox. I installed the resolvconf package. The resolv.conf file is this: # Dynamic resolv.conf(5) file for glibc resolver(3) generated by ...
1
vote
1answer
891 views

How can I Forward a subDomain to a specific port?

My apologies if this has been asked before. I haven't found an adequate solution so... yeah. When a specific domain, "example.com" is accessed, I want it to act normally. In other words, it should go ...
3
votes
6answers
611 views

Find my computer on a LAN network

Let's say that I have a computer plugged in to a local network using a dhcp connection, so it will get a different IP every time. Is there a way to find this computer (so the IP) from a different ...
15
votes
4answers
14k views

What DNS servers am I using?

How can I check which DNS server am I using (in Linux)? I am using network manager and a wired connection to my university's LAN. (I am trying to find out why my domain doesn't get resolved)
4
votes
2answers
1k views

What file to I have to edit to make static dns server in CentOS

Almost every distro I know will wipe /etc/resolv.conf on reboot (I think dhcp does this) and thus the place to add static dhcp entries varies per distro. How to I add static dns servers to a CentOS ...
2
votes
1answer
1k views

Can't reach DNS through wireless router

I've got a Ubuntu 10.04 laptop, and recently it's had some odd networking problems. It's on the home wireless router, supplied by the phone company, and has no problem talking to anything on the ...