How to get DNS from IP address Linux?
I need to transfer a webapp from an old server (Ubuntu 11.10) to a new one (Ubuntu 12.04).
The old server is using IP address of 192.168.23, and the new server uses an IP of 192.24. When I do ping
On the new server I have a route for gateway 192.23 (on a /29 netmask) and another route for router 192.24 (which is also a /29 netmask) .
On the new server, I added a route for gateway 192.24 using route add -net 192.23/29 gw 192.
However, even though I was able to add the new gateway route on the new server, I still can't resolve
Can anyone suggest how to do this? Update: It seems to work now. I changed /29 on the route adding the router to a /22 netmask and changed the gateway route's netmask to /29 again. My firewall was preventing the TCP traffic which may have something to do with it. Thanks for your answers!
From what I've read I think you need to use subnets and not masks. Something like this (using iproute2): # on 192.23 ip rule add fwmark 0x12/24 from 192.20 table 1 ip route add default via 192.23 dev eth0 table 1 # on 192.24 You have to allow connections in the firewall; if this works for you, you might look into why your traffic isn't going to the right server.
What is the DNS server command in Linux?
A DNS server manages a computer's network of computers. In the most typical configuration, a single server stores information about each domain name, and each computer that wishes to access information can send a request to the DNS server. The DNS server uses this data to determine which computer holds that name. What Is the DNS Server Command in Linux?
The main function of the DNS is to convert the names of machines on a computer network into numbers and back again, so computers can find out where each other is located and how to connect with each other. How it works The DNS system stores the information about each domain name on a single computer called a "DNS server." Your computer runs programs that act as DNS servers. For example, you might type "ping www.mjd.org" into a web browser or your operating system's command-line shell. Your computer sends this query to a DNS server, which, in turn, communicates with the machine that hosts www. That machine replies with an IP address and other identifying information. At this point, the computer that received the "ping www.org" command knows the address of the machine that runs the "www.org" website. You may have encountered a similar process of DNS on a prior computer, even if only as a curiosity. Why You Should Care The main function of the DNS is to convert the names of machines on a computer network into numbers and back again, so computers can find out where each other is located and how to connect with each other.
The DNS server is a computer that stores the information about each domain name on a single computer called a "DNS server.
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