Ubuntu :: Hostname Is Getting Set To 'localhost' On Startup?
Feb 22, 2010
Everytime I turn on the computer, the hostname is getting changed back to localhost.
Code:
cat /etc/hosts
127.0.0.1najilelocalhost
# The Following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
[Code]....
(side note: man hosts says that the name is based off the hostname file, but that's clearly not the case here. It's being named off the /etc/hosts file. Why did we move away from /etc/hostname? It's SOO much easier)
These computers (It's more then one) were all installed with the minimal Ubuntu disk and then installed basic software such as xorg, nautilus, gdm, and openoffice.
I recently installed OpenSUSE 11.3 amd64 from DVD on a new HP 625 Laptop. Whenever networking is activated, application startup slows down significantly. When I deactivate networking in the nm-applet application startup is fine. I am using the broadcom-wl package from packman for the broadcom wireless card (BCM4313)
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.
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.
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.
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.
I'm have been tasked with created a base Ubuntu image that can be used for cloning to multiple machines. As this is a network environment, each hostname will obviously need to be unique. Rather than manually changing the hostname each time a new, cloned machine is rolled out, I was wondering if there is a way to use a variable in the hostname (i.e., use a variable to truncate the the last 6 digits of the MAC address to the end of the static hostname--or any other unique variable for that matter--so it would look like hostname00E6D4).
I just set up a new karmic server, and the hostname is being set properly, but I'm not exactly sure how, since there is no longer an init script that sets it (it used to be /etc/init.d/hostname.sh on my older servers). Now I'm curious: what is the new mechanism by which the server's hostname is set at boot time?
I just have a simple question. When I installed Lucid a few weeks ago, I didnt feel very inspired, and thus left the host name at default. I just changed the hostname today, and I discovered that I can no longer resolve the host for ssh connections to the computer. When I changed the hostname files, I followed this guide: [URL].. Is there a file that I need to change regarding SSH that has a hostname in it?
Specifically, Im trying to ssh and VNC connect to the Ubuntu box from my iPhone. I have a PuTTY client installed on it (from the app store, called iSSH) and up until now, it worked.
I have installed a ubuntu 9.10 server to use mostly as a fileserver. When I installed the server I set it up as DHCP and later on I have changed the /etc/network/interfaces file, the /etc/hosts file and the /etc/hostname file. I have the ip 192.168.1.100 set on the server and I can ping and SSH this address. But I can not ping my server by it's hostname enighet. I am setting up a NFS server and I would like to use my servers hostname when I do this. Why can I not ping my server by it's hostname? These are the 3 files I have changed...
Code: johan@enighet:~$ cat /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo
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.
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
How do I make/find a host name in Ubuntu (10.04) so someone outside my local network can connect via VNC (Remote Desktop). I went to System> Preferences> Remote Desktop, but then it says
"Your desktop is only reachable over the local network. Others can access your computer using the address 192.168.1.102 or geordie-desktop.local."
I've looked at several tutorials and since i'm a newb I can't figure them out. I'm trying to set my hostname on my LAMP 10.04. What files do I need to configure? (all IP's below are fake)
Here are the first lines from /etc/apache2/sites-available/default
Code: <VirtualHost 111.111.111.111:80> ServerAdmin webmaster@localhost /etc/apache2/ports.conf has these lines after the comments
I'm trying to change my computer name and looked up other posts and found I need to edit /ect/hostname and /ect/hosts, but neither of these folders exist so how do I change my computer name in ubuntu 10.10?
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.
I am trying to set up a web server, i have put in a hostname.In terminal command: hostname shows 'promisedland, but hostname -F gives me name or service not known.How do I associate hostname properly, I have registered a hostname through DynDNS.I can access the page in my browser so I know it is there, I see the blank "u made it page".I just want to host a web server w/ a directory to my shared files (movies, music etc) that are on my server.
Ubuntu 10.10 64 bitI need to set /etc/hostname and /etc/hosts so that on running;$ hostname Code: ub1004 $ hostname -a Code: ub1004 set them as;cat /etc/hostname Code: ub1004 cat /etc/hosts Code: 127.0.0.1localhost.localdomain123.123.123.123ub1004.domain.comub1004
# The following lines are desirable for IPv6 capable hosts ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet
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.
Get the usual message of when theres network/connection problems:Unable to connect Firefox can't establish a connection to the server at localhost. I could access it a few hours ago, but now I cant Have not restarted the computer since, have not really done anything out of the ordinary either. Why is it doing that and how to solve it? I have never got this problem before.
