Networking :: How To Incorporate DNS Server Into Existing Setup
Apr 8, 2010
I am working on setting up some networking connections here. [URL]. Depending on your router make and model. You can disable the dhcp server on the router if you go to advanced setup and in the dhcp option You should find two radio buttons off and on click off and you will disable the dhcp server on the router refer to your router documentations. I do not wish to disable the DHCP on my router (2wire). I have fixed the router so it assigns static IP addresses - by following the Management and Console Diagnostic" portion on this page: [URL]. There are 7 machines getting IP addresses from the 2wire router. Of the 7, I have configured 4 to have static IP addresses allocated to them by the router.
For example, the domain here is : 2wire.gateway.net
If I have a host named "zazu", and I ping zazu.2wire.gateway.net, I get the right IP address.
I am working with a product (ZIMBRA) that
-> requires for the host to "have MX records".
-> that you get a FQDN when typing "hostname"
-> that you get a FQDN when typing "hostname -f"
Basically, the way it is supposed to be set up is:
ZIMBRA (internal) <----> Kerio Mail Server (Windows) <---> email from the outside world
So, in a sense, the Kerio Mail Server is to forward mail received from the outside world to ZIMBRA and ZIMBRA is to send mail to the Kerio Mail Server to send it to the outside world. From what I see at these links: [URL] And [URL]. You have to set up some kind of DNS server? Why? Don't both the DHCP server and DNS server serve the same thing? How can I incorporate a DNS server into my setup when the 2wire (with DHCP) is working just fine?
We have two CentOS 5 servers in production (web and database). We are setting up a single staging server that will mirror the configurations of these servers as closely as possible. What is the easiest way to ensure the exact same software and configs as the production servers are setup on the new staging server. Our contracted data center provider has already informed us that they do not perform images and NO we do not have physical access to the machines. It is undetermined whether we will be virtualizing the staging server into two virtual servers yet, so for the purposes of this post lets assume we are not. I'm seeking a faster/more precise method than doing this by eye and hand.
I have a Centos 5.6 Linux Server configured as Router with NAT for my LAN. There are currently 2 NIC's on my server. One is connected to WAN , a PPOE connection (eth0) and eth1 is connected to a switch which supports my LAN. I have enabled NAT and configured iptables on my server and I am able to access internet from LAN and everything is working fine.I have a Belkin F5D8233-4v3 Wireless router and I need to configure wireless on my network so that I can access internet from my Laptop. The issue is that I have only 2 NIC's on my server, one Gigabit NIC integrated with my motherboard and another NIC which I am currently using for WAN access and LAN. I need to setup the Belkin as an wireless Access Point.
Can I connect my Belkin to my switch and set it up as a Wireless Access Point?? I have read about setup using 3 Nic's.Any ideas on how to configure my Belkin as Wireless Access Point with my existing setup? Is Belkin F5D8233-4v3 supported on Linux.
I have an existing unix user that some how didnt make it into the copy over to our LDAP server. How do I add an existing unix user to an existing LDAP directory? Will ldapadd work? I was under the impression ldapadd required an ldif file to work properly.
I'm using Ubuntu 9.10 and previously had a separate partition with another distro on it. I decided to delete the other distro's home and swap partitions and install XP in place of it. I've been following these instructions: [URL] and [URL] I have gotten to the point where I am booting to the XP CD and want to install it, but I get the message, "Setup did not find any hard disks installed on your computer" when I should be getting to the screen that asks me to select a partition to install XP on. This is what my HDD looks like in GParted:
I want to install XP in the unallocated partition, but I have a feeling I screwed up somewhere along the way and probably don't fully understand the whole thing. Even if I try to format the unallocated partition to NTFS I can't make it a primary partition (I assume because it's within sda2). The very last thing I want to do is delete my Ubuntu partition and start from scratch, but if that's my last option let me know.
I'm having this issue with a Linux server that thinks it owns an IP that it doesn't.Background: We used to have a central server connected directly to the DSL modem with two interfaces. interface eth1 was setup to respond to three of our external IPs, I'll call them ext54, ext55, and ext56. The internal interface, eth0, was setup as a gateway for the LAN on IP 192.168.0.1.
We wanted to install a hardware firewall and virtualize the existing server. So now it's setup so that the WAN interface of m0n0wall is connected directly to the DSL modem and responds to ext54, ext55, and ext56 and its LAN interface is the gateway for the 192.168.2.0 network. The server was virtualized and it's eth1 configuration was changed to be 192.168.2.2 with a gateway of 192.168.2.1. Everything seemed to be working fine.
Problem: The server runs apache for our webmail system, which works fine from the outside (since I have m0n0wall NAT port 80 through to 192.168.2.2), but inside it fails.
As best as I can figure the server (which is linux Centos 4.3), thinks that it should still respond to IP ext54 instead of forwarding it on to m0n0wall to figure out where it should go. I've looked through all the config files I can think of on the linux server (ifconfig, route table, hosts file) and I can't see anything that would make the server think it is ext54. I've also checked the logs and config of m0n0wall to see if the packets are getting dropped, and again, I don't see anything.
I guess I should say that our DSL provider gives us the IPs ext54, ext55, ext56, ext57, and ext58. When I tracert the IPs on the server ext54, ext55, and ext56 don't hop at all as if the server itself serves those IPs, but ext57 and ext58 tracerts hop to the m0n0wall gateway correctly...which makes this even crazier in my opnion.
Im quite new to Linux so im trying to learn as i go along.
I currently have Redhat 5.2 installed on a server and this has been setup with Oracle 10g Applications installed and configured by the developers at my company.
I have now been asked to install Redhat 5.4 so we can move onto Oracle 11g.
The question i need help with is... Can i update my current Redhat 5.2 with Redhat 5.4 without losing my current setup and configurations?
I have had a search around and found a command called 'yum' but this looks like it is only used to install packages and security updates etc.
I have recently been given the task of setting up some thirty odd netbooks with F10 and i was wondering if there is a way to generate a kickstart file from the first netbook (my one lol ) that i have setup to our needs so as to use it to create the same install on the rest of the netbooks. i had thought that i could use the anaconda-ks.cfg file in root's home dir but it is not at all representative of the custom package list i chose during the install.
I am running Suse 11.1 on a netbook that I would like to free up for work. Since I would like to keep the existing setup on the new machine, I was wondering if there was a process for copying an exisiting installation to new hardware. This will be a desktop system ( Cheapie PIV most likely )
I have Win XP installed on one hard disk drive (HDD1) and Ubuntu 9.10 installed on another hard disk drive (HDD2). Win XP was installed first then Unbuntu 9.10 which set up a dual boot menu. Win XP will no longer boot because I changed the BIOS setting from IDE to AHCI. The problem this causes is described at [URL]. The problem is that if you installed Windows in IDE mode (ie you didn't use F6 and supply a driver disk), then simply changing the BIOS setting to AHCI mode and rebooting will cause Windows to fail and will require a repair install. Most people have been advising to reinstall Windows if you want AHCI enabled. I have read that Win 7 supports AHCI "out of the box" so instead of re-installing Win XP I want to install Win 7 to replace it. I would like to know in advance what installing Win 7 will do to the dual boot menu?
Currently I am working on one project in which I am transferring existing setup to Open Source platform. I am having brand new IBM server with two NIC card and want to setup Firewall. I am searching for good solution which suits to me. Which firewall system I should go for? I am thinking of IPCop.
1) Firewall should support OpenVPN 2) Easy to manage for Resident technician 3) Should be block streaming, facebook and others sites.
I set up a ubuntu server 10.04 lts as file server in a network filled with xp, win 2003 and win 2008.
I noticed that if from any bill's SO machine i copy a file (for example a vob file of 1gb, or a lot of doc and pdf files) in the samba server, while the copy is in progress if in another windows I browse other folders shared in Samba, the copy process stops and say ' the name in the network is no more available( or something like this). It seems that samba pay attention on the fact that a user is browsing the share and doing so it seems that Samba forget that in one of its share there was a copy in progress, very annoing. A file server cannot do that, in this way is useless.
I have triple booted Windows XP (195 GB)partition 0? the second partition is Windows 7 (195 GB)And the rest of a 1TB hard drive went to Open Suse 11.3. if it makes any difference I used g parted to create the three partitions and made them all primary. My problem is I want to change the way they all get along. When I boot up, I get the options;
Desktop -- openSUSE 11.3-2.6.34-12 Failsafe -- openSUSE 11.3-2.6.34-12 windows 1 windows 2
which is fine, but clicking on windows 1 takes me to the windows boot loader with the options of windows 7, or previous version of windows. clicking on windows 2 brings up a screen telling me " rootnoverify (hd0,1) chainloader +1 BOOTMGR is missing press ctrl+alt+del to restart" I would like the end result to be windows 1=XP,windows 2=7, then I can rename them accordingly. one more thing, when I installed openSUSE, I let it automatically configure the hard drive and create the necessary partitions(it deleted partition 3 first). i remember it saying somewhere that the boot manager was past the 125 GB limit, and might not boot.
I have a "master" IDE HD upon which reside several Linux OSs and a couple of Windoze OSs. The boot system is Mandriva using Grub Legacy and the latter's menu.lst file is where I select which OS I wish to use. I use HD physical carriers for my HDs. I used GPartEd to copy over newly installed OSs on another drive to the "master" HD. The commands in the menu.lst file for Linux OSs are representative as follows:
Name of OS root (hdx,x) configfile /boot/grub/menu.lst
Task: Enter Grub2 which, I seem to understand, is a work in progress. I presume that some commands in Grub2 are not recognizable by Grub Legacy. I installed Debian 6 on another drive and I wish to incorporate an entry in the menu.lst file described above using the technique described above. Is it possible to use the menu.lst file in Grub Legacy (0.97) in order to boot the Grub2 Debian OS? Or am I chasing windmills?
I have ubuntu 11.04, so I type the command python -m SimpleHTTPServer 7000, this simple web server will be running on. then open firefox, type http://localhost:7000 in URL and hit enter,it will show up the list of files of the directory where I typed the command python -m SimpleHTTPServer 7000 on, then select any one file, right click mouse, choose save link as, the file will be downloaded. this works also for local network machines.the issue is that my friend, in a remote place, wants to download my files via this simple web server, but it does not work, even I tell him my IP address and port number. it seems he can't access it at all. I am wondering how to setup my ubuntu so that my friends from the outside of my network can access the files that I intend to provide.
My ISP seems to be having some configuration problems cos of which I cant download certain files (mostly exe and msi and some rpm files) as the download either doesnt start (firefox download window showing "Starting..." all the time) or download gets stuck at some point of time.
However I have access to my college computer through SSH using public key authentication and my college computer has internet access 24x7. I would like to be helped with 2 things: How do I use the internet through my college computer? Like when I use the internet, the requests go through my college computer so it must appear that the requests come from my college computer IP while I use firefox from my home computer How do I configure yum to download packages through my college computer? I want to setup yum to use the IP of my college computer to download the packages.
I have setup a dhcpd server on my lan with the following option to reflect the static route to my private LAN.
dhcpd.conf
Code: option static-routes 10.0.0.0 192.16.5.0
I've tested it on OpenSUSE, ArchLinux and even Windows dhcp clients and they've managed to pull the static route configuration. However, to my suprise on my ubuntu machines this doesn't seem to load. Is there anything that needs to be done on the client's side to get this to work?
I just installed ubuntu server 10.04. I want to connect to my wireless router(192.168.123.254). My router normally has wpa but I turned off encryption until I can get the server working. my router has MAC flitering which it has my servers MAC address and the dhcp server on my router is configured to assigned an ip address of 192.168.123.123 to my server.
On the server I do see wlan0 when I do sudo ifconfig -a. HOw do I setup the rest? I 'm very new with command line and linux so please bear with me.
I am planning to setup a home network with Ubuntu.the home network consists of ~3/4 computers; a mediaserver (reelbox) and 2 more PCs.Can I setup the server as a DSL router and get rid of my modem/router I have right now?
i have a homework where i have to set up a dhcp server on linux. I am using ubuntu. I tried following: [URL] However after running "sudo apt-get install dhcp3-server" the file "/etc/default/dhcp3-server" does not appear.
I have set up servers between two computers hooked up to the same router. But something has bothered me for years, i would think there is a simple(relatively speaking) way this works.
I can't seem to understand is how to setup a server in Iowa, and have someone in Colorado access it.
All IP addresses Ive seen are 192.168.x.x., which obviously can't hold too many, so accessing a server in Iowa isn't going to work by just knowing the IPaddress the computer will tell you.
Ive run into DNS, netmask, gateways, and I can understand at least somewhat how they work, but it hasn't helped me to make a connection from thousands of miles away.
From what I can understand, I would need to find out multiple addresses(IP?), between each step the transaction would have to travel. Is this close to how it works? and how do I find out the info/addresses I need to find a server miles away?
I would like to have ftp access the files on a Linux Server using XP. It's easy with a windows server but Microsoft doesn't work with the Linux server.
now existing GW set on the server is 192.168.1.1, mail receive and send through ISP1. now we wish to set somethings that once the ISP1 line is down, the server will auto switch to ISP2 gateway and continue send and receive mail without manually change of settings
I would like to set up a PPPoE server based on CentOS 5.5 i386, in order to give public IP addresses to my customers. Does have anyone a tutorial or can you give me some clues ?
