Networking :: Registering Hostname In DNS?
Jul 16, 2010
I have a Fedora 13 desktop I have at work that I want to use to back up data off my laptop, also running Fedora 13. I can ping the hostname of the laptop from the desktop, but not the other way round. I don't think I did anything to have the laptop register its hostname with the DNS server. Since my company uses DHCP, I can't just edit the hosts file on the laptop. I want to be able to use the hostname when I mount the NFS shares for the backup. I also want to run the desktop headless so Remote Desktop needs to be able to find it. Is there a way to force the registration? If I ping the laptop's fully qualified hostname from itself, I get back the correct IP address. If I do the same thing on the desktop, it tells me it can't find its own hostname. I do have the domain name configured in the dns search path under System->Administration-Network
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Jan 3, 2010
I have a network of 2 WinXP machines and one linux box. I have fiddled around with the settings as you do when learning. The network is working. The network neighbourhood on the WinXP machines recognise the linux box and vice versa, (the linux Places|Network recognises the 2 WinXP). I can Ping the linux box using its hostname from a WinXp. But I cannot do the reverse. I get an 'unknown host' response. I can ping the linux to itself using its hostname.
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Jul 29, 2010
I'm having an issue on two Fedora Core 13 machines where I can ping others by hostname, but the hostname resolution fails whenever I use ssh/scp/vnc/etc. I can still do these things by IP address, just not by hostname. RHEL5.3 machines on the same network with the same configuration do not seem to have this problem.
Here's the not-so-quick-and-dirty description of the situation:
I know that there is a virtual router at 192.168.31.1 and another at 192.168.30.1. I also know that there is another network (let's call it 90.90.90.0) and on that network lies a number of resources. By nature of this configuration, any machine on 90.90.90.0 can be accessed by any 192.168.x.x, but not the other way around. Beyond that is out of my hands and currently out of my scope of knowledge.
I have a dnsmasq server on 90.90.90.10 that operates as a secondary nameserver, another machine out of my sphere of influence is the primary nameserver (90.90.90.31).
The secondary nameserver on 90.90.90.10 holds the hostnames of our development machines. The problem is that in some cases, while I can ping by hostname all day long, services such as ssh, scp, vncviewer, etc all fail to resolve the hostname. In other cases I can do all of these things.
Every machine has an equivalent resolv.conf:
As an example, I will show the output of a handful of my development machines:
I also included columbia as a one-way test -- even though it cannot access 30.x or 31.x, they can access it:
columbia -- physical machine, Red Hat Enterprise 5.3, IP 192.168.100.200
Okay, so here are the various outputs. Remember, nibbler, discovery, and atlantis can ALL:
- Ping by IP address
- Ping by hostname
- ssh, scp, vnc, etc by IP addess
Additionally, the SERVFAIL reply from 90.90.90.31 is expected since my dnsmasq server is on the secondary server.
Note that the only machine that can both ping and ssh/scp/etc by hostname is nibbler, which also happens to be the only one of the three running RHEL5.3 instead of FC13. Other virtual and physical machines running on the 192.168.31.0 and 192.168.30.0 networks (all running RHEL5.3) work just like nibbler does. So the problem seems to only affect machines running FC13.
Final note: selinux is disabled, iptables is disabled, ip6tables is disabled.
Other than that, discovery is a brand-spanking-new install straight off of the FC13 DVD. atlantis has been around longer, but its just a file server so I haven't done anything too crazy to it.
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Aug 6, 2010
I have my home server set up as an ftp server, LAMP server, ssh server, all that fun stuff. I usually access it externally using my IP address, but I would like to get a domain name for convenience reasons. I wonder If you could recommend a site that will register a domain name for your IP, preferably for free. Or would I be able to do it myself by installing a DNS server on my server? I'm not really sure how that works. I'm pretty sure that you can only do that with local servers, right?
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May 24, 2010
I'm trying to ping another Ubuntu computer on my local network. If I try doing,ping <hostname>then I get the messageping: unknown host <hostname>however, if I doping <hostname>.localthen I get a response back. I was wondering how I can change it so that I can ping without having to append .localI've installed winbind and modified my /etc/nsswitch.conf file but this has made no difference.
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May 22, 2011
I have an ubuntu 10.04 server with hostname "abc.domain.com". However, due to migration, we had to change to hostname to something else, "xyz".
I have done changing /etc/hosts and /etc/hostname and run /etc/init.d/hostname start.
Checking the hostname and all shows it is now using hostsname of xyz. However, email sending out is still using old hostname. We have some scripts that will send out alerts like failed rsync or hdd space full to my email account. But I see the sender is still "root@abc.domain.com".
How do change that to xyz? I am using postfix. I have edited main.cf and restarted postfix but no go.
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Jun 14, 2010
The motherboard is an L7VMM2 Rev 1.1Initially everything was running smoothly, then I brought it upstairs and everything just failed. The computer would hang right before the POST memory check, and after a few reboots it would do the memory check and reboot. So, I opened it up and switched the RAM around thinking it may have been a BIOS bug or a loos connection and it seemed to work. Now it boots into 10.04 perfectly and is blazing fast for an old computer. THe only problem now is that according to ubuntu, my ethernet controller is non-existent. It doesn't show up in lspci, dmesg and the only thing in ifconfig is the lo interface. It will however recognize the USB interfaces. I upgraded to linux 2.6.2.32-22-generic #33 but that didn't help the issue any. Now I'm stuck, and running out of ideas
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Jan 18, 2011
I am running rooming accommodation for 5 students and am trying to use TCaR addon with IPCOP to split my 400GB Iinet internet quota 5 ways. As a total beginner to LINUX I am using the threads here to help me through the install/setup process. After following the steps in another thread http://www.linuxquestions.org/questi...-linux-752598/ I have IPCOP 1.4.20 installed and running (Advproxy,PUTTY, SSH enabled ect)and the TCaR addon operating fine on the GREEN. Everyones connection is working, however when I tried to send out usage reports after an hour of use it registers all persons usage as 0mb.
I am using a Billion BiPAC 5200 modem set to full bridge and a 5 port switch running without any modification. I had set the IP addresses in TCaR(not using MAC addresses)of the students and set their profiles to give 81920MB of usage per month. Usage is set to 1 cent per MB although I will not be charging for usage. Am I not waiting long enough for usage to register? Should I be changing settings on my 5 port switch? I noticed that the addon section of IPCOP is over 900 days old, is TCaR no longer compatible/supported? I can supply any further data with regards to my IPCOP and TCaR settings
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Apr 6, 2010
How do I set $HOSTNAME to dynamically update with the hostname that is specified for the ip in DNS?
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Apr 27, 2010
I have a usb bluetooth dongle I've connected to my machine. The device appears just fine and using hcitool scan I can scan for device with no trouble. However blueman doesn't seem to register the device even when I force the applet to display and try add a new device it won't scan/see any of the bluetooth devices. Has anyone come across something similar or would know how I should proceed?
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Mar 21, 2011
I just installed Debian 6.01a and when I click with my RAT5 mouse the clicks aren't being registered. This happens about maybe 40% of the time. There is nothing wrong with my machine physically and this is a clean install that is not virtualized. I've had similar issues with Kubunutu though blamed it on the virtual machine...now I know it's a Linux specific issue.
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May 14, 2011
I'm wondering if it's possible to operate a Web Server 'without' registering a domain name, using an IP address alone.I currently have Apache & Tomcat running on one of my workstations. I am currently using these servers as development sandboxes; and I have P2P Search Engine 'YaCy' running under Apache, which is accessible from the outside to the entire P2P network.
Since my Apache server is accessible from the outside, I was thinking that I might setup one of my other workstations as a server with just my 'external' IP address & port number as a way of reaching my site, i.e. http:// 255.183.47.201:8090/. I can't see any reason why this wouldn't be possible. I seem to remember several of my former companies doing this on their corporate Intranets. Also, I wouldn't be locked into registering a domain name every year; and I wouldn't have to worry about any content restrictions. If my intended audience knows where to find me; I can't see any reason why this wouldn't work. And, I don't see why my site couldn't be indexed by search-engines. The only caveat I can think of is making sure I have enough bandwidth from my ISP to support the anticipated traffic.If this will work, I assume I can setup a regular website, an online store, podcast, or provide any other type of tradional web-service this way.
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Jan 21, 2010
the difference between $HOSTNAME and $(hostname)?
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May 22, 2014
My external hard drive (about 2 years old) won't mount. It wouldn't mount on Windows either. Other external hard drives (sdb1) mount perfectly.
I am wondering is there a Linux way of getting the hard drive to work again? The disc spins up so it's not a mechanical failure. I'm guessing here but is there a way of flashing firmware onto the external HD if that might be the problem?
(Seagate 2TB ST320005EXD101-RK)
Code: Select all# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda2 during installation
[Code] .....
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Mar 2, 2010
how to allow a specific hostname with specific ports in iptables?
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Jul 7, 2011
it was working but after i installed updates and rebooted it could not get a ip address seems like strange timing it still registers under ifconfig it is not even working on the live usb anyway i can test to be sure it is the chip?
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Feb 1, 2010
Running Fedora 11.
Did get a Kimsufi dedicated server through [URL] When I did get it the hostname resolve does not work.
I have never got any of this problems before so this is my first time playing with the network settings.
Nothing works! Lynx, wget, yum and so on. IT works if I do enter the hostname by its IP. But thats not working in the long way
Quote:
ping cnn.com
ping: unknown host cnn.com
Quote:
#nslookup cnn.com
Server: 127.0.0.1
Address: 127.0.0.1#53
[Code].....
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Nov 13, 2010
When I use Ubuntu, my DSL modem correctly gets the hostname I call my computer "mertensia", but I'm having issues with Fedora. Yet, when I look at the name assigned by the modem (using URL... in a web browser),I need the PC Name to be mertensia, because otherwise it will complicate how I ssh immensely.
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Jul 3, 2011
I have 4 installations of Fedora 14 running on a Win 2008 R2 server in Hyper-V.
When I try to ping my desktop or the host server via the hostname from within any of the Fedora installations, the ping fails. I can ping by IP without issue. Also if I try to ping the VMs from my desktop it fails. I have an XP VM setup that I can ping without issue via hostname and IP.
All of the VMs can access the Internet without issue. I have disabled all firewalls on all systems with no luck. My desktop can ping the Hyper-V server without issue so it would appear that the problem lies with the Fedora installations.
My resolv.conf
Code:
Does anyone have anything I can try to get the name resolution working?
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Jul 19, 2010
I just finished installing ubuntu server 9.10 - fairly new. I couldn't run SSH when I use IP address of the server. I've also setup DynDNS that returns responses when I ping. SSH works fine when I use the hostname of my server (leopard) but SSH doesn't work when I use IP.I was expecting IP for "eth0" something starting with 192.168.x.x as are my other computers running WIN on the same network.Any ideas why
1) Why am I not able to run SSH from IP assigned to server by DHCP. It works when I use machine hostname (leopard)
2) Why SSH isn't working from DynDNS web hostname when it responses back the ping command.
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Oct 6, 2010
ok so when i sudo apt-get update i get a bunch of crap that says no address associated with hostname
ive googled this and changed my /etc/hosts to all sorts of things and no luck apache wont even work now either. this server is for a few websites the company i work for hosts. currently i swaped it over to another windows based comp but we want it on ubuntu.
ive heard this is dns related? and that a FQDN is needed? if so im not sure how to re write my /hosts file but as of not it looks like this:
Code:
127.0.0.1localhost
63.119.120.135speed
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
[Code].....
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Mar 22, 2011
I have set up an Ubuntu 10.10 server with SAMBA shares and Apache web server. Everything was working fine. Then there was a power failure and after I restarted the server the XP pc's can see the server using the hostname. They can only see it using the ip adress. I haven't change anything on server or client side. Just the restart of the server.
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Mar 14, 2010
I am coming across a strange error with my gateway. When I do a "ping", this is what I get below:k-63a5b848c6cb4:~ # ping simba PING simba.gateway.2wire.net (192.168.1.69) 56(84) bytes of data.
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=1 ttl=64 time=0.041 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=2 ttl=64 time=0.029 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=3 ttl=64 time=0.023 ms
[code]....
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Apr 6, 2011
I have a Windows 7 machine that I have an installation of Ubuntu 10.10 via VMware and am having an issue with pinging by hostname thorugh the VM. From the Windows 7 machine I can ping by name without any issue but not with the VM. I have the VM as bridged so it is pulling all the network stuff via DHCP including the correct DNS servers. I can ping all the DNS servers and host without any issue. I have verified my /etc/resolv.conf entries are all correct.
If I run nslookup via the VM it says:
PHP Code:
I have also verified that AVAHI is running to cache the DNS stuff and still no success.
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Sep 8, 2010
I got an application deployed on Websphere Application Server on SUSE Linux V 10. We are accessing the application using the IP address in the URL. Please let me know how to configure the DNS, so that we can use the Host name in the URL and the Host name is automatically mapped to the IP address.
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Mar 14, 2010
I am coming across a strange error with my gateway. When I do a "ping", this is what I get below:
k-63a5b848c6cb4:~ # ping simba
PING simba.gateway.2wire.net (192.168.1.69) 56(84) bytes of data.
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=1 ttl=64 time=0.041 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=2 ttl=64 time=0.029 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=3 ttl=64 time=0.023 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=4 ttl=64 time=0.015 ms
Does anyone know what the problem could be?
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May 31, 2010
What is the right way to specify hostname(in local linux box, not in DNS server):
myhost1
or
myhost1.mydomain1
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Feb 12, 2010
I had always worked fine with my Red hat 4.0 untill yesterday night when i logged in i had an error saying: "HOSTNAME could not be found, you can resolve this by editing the /etc/hosts"eventually it logged me in but when i launch the terminal ...i now see 'username@(none)dir' .In other words my HOSTNAME shows as 'none'.I looked into /etc/hosts file but everything looks the same, which for is:127.0.0.1 mluboya,
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Mar 31, 2010
How I can ping my debian computers on their hostname?
I have installed both samba and winbind and I have also changed the line in /etc/nsswitch.conf to:
Hosts: files wins dns
I have done the same thing on another linux box (ubuntu) just to see if that worked and it did - I could ping it on the hostname.
Also, I have trid to add the ip/hostname in /etc/hosts and even that didn't work.
The /etc/resolv.conf seems to be as it should.
In the /etc/hostname the hostname is updated.
I have tried to restart the samba service and the networking service and even the entire computer but none of it worked.
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Feb 7, 2011
Is there a way to ping the hostname in linux just like windows?
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