The unique name by which any device attached to a network is known by.

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1
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1answer
15 views

Giving Ubuntu Desktop a domain name to ssh into [duplicate]

I know absolutely nothing about remote access to a desktop. I've just set up a machine with Ubuntu installed which I wish to run calculations on remotely. I've installed openssh-server and opened ...
4
votes
1answer
121 views

How to safely change username and hostname?

I installed a fresh Ubuntu Gnome 14.04.3 today, but I just notice that I reversed the username and hostname during installation. To illustrate this, when I open a terminal, the prompt looks like : ...
0
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0answers
34 views

Should Mailserver /etc/Hosts be static ip or loopback?

Im trying to set up a mail server, and currently I am having issues with hostname and hosts files. I want to get this correct before installing postfix and trouble-shooting issues that may be ...
0
votes
1answer
58 views

Correct MX record, subdomain and Dynamic DNS settings for Namecheap Self hosted email @domain.com email & correct Hosts and Hostname for server

I want to correctly Set up my own email server at home for my domain.com. It is hosted by namecheap. I need to set up the following On Namecheap (Domain provider): MX Record Subdomain On Server: ...
4
votes
3answers
135 views

Change Machine Name [duplicate]

How to change machine name in Ubuntu; as in my case it is written as Lenov@G500, and I want to change both names i. Lenovo and G500. how it can be done through Terminal.
0
votes
1answer
31 views

Hostname of machine changed unexpectedly to mongodb after reboot

I have mongodb 3.0.4 installed on my Ubuntu 14.04 machine, and after I did a reboot I noticed that the hostname changed to mongodb. Indeed I see myuser@mongodb instead of myuser@myhostname as it was ...
1
vote
1answer
32 views

SSH connects with old hostname

I changed my hostname on my Ubuntu (12.04) computer but my CentOS computer still connects to it using the old hostname. How can I make it so that I can type: ssh new_hostname instead of : ssh ...
-1
votes
1answer
55 views

Could not resolve hostname 123.45.67.890 [closed]

Could not resolve hostname 123.45.67.890: Name or service not known I'm trying to setup my server and straight away I get this error, following this guide:
1
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1answer
34 views

Unable to launch anything after changing hostname

Since I upgraded to Ubuntu 15.04, I have noticed that whenever I change my hostname by changing it in and with: /etc/hostname /etc/hosts sudo hostname <new-hostname> Immediately after this, ...
0
votes
1answer
48 views

sudo unable to resolve host error message [duplicate]

I changed my hostname in: /etc/hostname And then also changed it with: sudo hostname MATRIX But I experienced a problem because (and I don't know if this is related or not) none of my ...
2
votes
0answers
240 views

change host name initramfs ALERT! /dev/mapper/guacamole--vg-root does not exist

I have two servers - guacamole and chorizo to be set up with Openstack cloud. I installed ubuntu server on one, then used the linux "dd" to image the disk to build the other, and renamed the server ...
3
votes
1answer
787 views

unable to edit /etc/hosts file in ubuntu 14.10

I changed the hostname from default name, set during installation to something short and nice, but didn't change it in /etc/hosts file. /etc/hostname is changed after restart but sudo is not working. ...
2
votes
1answer
69 views

Problem with same hostname and domain

I have a bit of problem, when I was setting up production server hostname was same as name of one domain that wasn't planed to be used, now i have to use this domain name and files are stored in ...
0
votes
0answers
235 views

Blocking Specific User to specific website using Squid Web Proxy Webmin

I'm using Squid Web Proxy via Webmin and currently it works. I have set the proxy authentication too. source : ...
0
votes
0answers
33 views

hostname and hostname -f returned different value

My ubuntu hostname command returned correct server name but the hostname -f returned localhost. How do I make hostname -f return the correct server name?
1
vote
0answers
23 views

Ubuntu PXE installation is not asking for the hostname or domain [duplicate]

I'm using a PXE server for installing systems in my network. I want it to ask for the hostname and domain on every install instead of asigning 'kickseed' everytime. I cannot figure out what is causing ...
0
votes
0answers
60 views

Accessing my Server over the Public Internet

I have installed apache couchDB on my server and ran the following command : HOST="http://commcarehq:commcarehq@127.0.0.1:5984" curl -X PUT $HOST/commcarehq which was succesfull but when I run ...
0
votes
2answers
217 views

How to change my device name? [duplicate]

I want to change my device name but I have not found any option in the settings to do it. I am using Ubuntu for first time. Is there any way to change the device name that appears when I lock the ...
0
votes
0answers
22 views

Is there any way to change `fqdn` permanently without rebooting? [duplicate]

At present I got the following configuration $cat /etc/hosts 127.0.0.1 localhost 127.0.1.1 ubuntu.domain.lcl ubuntu $cat /etc/hostname ubuntu $hostname -f ubuntu.domain.lcl Now in order to ...
0
votes
1answer
69 views

How do I change host name [duplicate]

Getting 'unable to resolve host' error and need to change name. How do I do this? Hostname is brian-HP-G60-Notebook-PC $ cat /etc/hosts 127.0.0.1 localhost 127.0.1.1 linux # The following lines ...
1
vote
1answer
2k views

Got SERVFAIL reply from 8.8.8.8, trying next server [ubuntu 14.04 digitalocean ispconfig]

All started with a vps from digitalocean and the following documentation from ispconfig https://www.howtoforge.com/perfect-server-ubuntu-14.04-apache2-php-mysql-pureftpd-bind-dovecot-ispconfig-3 after ...
0
votes
2answers
94 views

What are hostname and domain name doing in linux system?

I just yet starting to learn about web serving. So, far I know domain name is used for web page addresses (URL), like if we have an URL like this: ...
0
votes
1answer
38 views

Changing the Name of PC

Will I have any conflicts in my computer file manager system if change the name of my PC to another name?
2
votes
1answer
121 views

What is the default domain on Ubuntu VPS?

I have a VPS running and I have installed webmin to host a few domains. What is the default domain name for the server? My service provider doesn't give me any default domain, just a static IP ...
3
votes
1answer
3k views

Ubuntu 12.04 - Can't Resolve Hostname

I have a small dedi server on which I have installed Ubuntu 12.04. I access it via x2go since I have a desktop installed. All worked fine until 2 days ago when, after a reboot, I lost any Internet ...
2
votes
0answers
175 views

Launching programs after hostname change returns error _IceTransSocketUNIXConnect: could not connect to local-host

After changing the hostname on 14.04 I cannot launch unetbootin, attempting to launch the application from bash returns: _IceTransSocketUNIXConnect: Cannot connect to non-local host OLDHOSTNAME ...
0
votes
1answer
47 views

PostFix hostname

I'm new to postfix and was wondering what hostname I should specify in my main.cf file. Is it the VPS hostname? or I can use one of the domains I host in the VPS as hostname? I'm trying to set up ...
0
votes
1answer
356 views

Ubuntu Server 14.10 same Hostname in- and outside

So, my router doesn't support loopback, so I have to always have two bookmarks to access my server, one for local and one for external. While this is not really a problem, its more of a problem for ...
0
votes
0answers
133 views

Unable to ping computer with hostname

I am using Ubuntu 14.10 hostname is myserver. On other computers, avahi-discover shows myserver.local under IPv6 but not under IPv4. If I disable IPv6 in /etc/avahi/avahi-daemon.conf, sometimes I ...
1
vote
1answer
515 views

How configure apache (vhost) for Server-Hostname

First of all, sorry for my imperfect English. But let me explain my problem with apache vhosts. Example: My servername is example.de (/etc/hostname). If I configure for this specific domain my vhost ...
0
votes
0answers
127 views

Ubuntu 14 lts request host-name update by dhclient

In ubuntu 12 lts, for update the hostname by our dhcp server, we have juste to edit /Etc/dhcp/dhclient.conf and set request or require host-name and del the /etc/hostname. I try this in ubuntu 14 but ...
0
votes
1answer
124 views

cannot ping FQDN from outside LAN (Glassfish)

Current situation I have a LAN network with pc1 and pc2 Glassfish is installed on pc1 pc2 can browse to the ip address of pc1 I've set up a Fully Qualified Doman Name (FQDN) through noip.com The ...
0
votes
2answers
190 views

After change of host and hostname, terminal won't show it

I have changed my host and hostname by editing the files /etc/hosts and /etc/hostname. But this won't affect what appears as my terminal prompt. It still shows my old_host@new_hostname. How to get ...
0
votes
1answer
401 views

PXE based insallation always sets hostname as 'kickseed'

I am using PXE based provisioning of Ubuntu 12.04.5. I have PXE, TFTP, DHCP server in place. All my configurations specified in kickstart file are set correctly except the hostname. The machine always ...
1
vote
0answers
32 views

Is it possible to find the host name (Computer name) in my LAN network if I know its IP address? [duplicate]

I want to know whether this can be achieved using terminal. I have tried nmap, nslookup and netstat, and failed.
-1
votes
2answers
191 views

hostname shows as vps Ubuntu

Hi i am using a ubuntu server , some other person has made it . i checked my host name by typing hostname it says vps . I checked in my etc/hostname file it says the name is vps in /ect/hosts ...
1
vote
1answer
677 views

Can't ping Arch Linux machine from Ubuntu Server

I have a server and a desktop. Server: OS: Ubuntu Server 14.04.1 IP address: DHCP from Asus router, allocated by MAC address to 192.168.1.4 Connection: wired Ethernet, always on Desktop: OS: ...
1
vote
2answers
2k views

unable to change host name on Ubuntu virtual machine

Here are the steps I followed: Changed /etc/hosts: cat /etc/hosts 127.0.0.1 localhost 127.0.1.1 linux-vm Change etc/hostname cat /etc/hostname linux-vm Reboot Still the TTy shows ...
1
vote
1answer
109 views

Live host on network is masked in some way or its changing it's ip?

OVERVIEW: My professor runs some kind of live Ubuntu OS image on top of the classroom computer he uses to lecture then portals into his linux box located in his office. He has informed me his ...
0
votes
1answer
250 views

How to change hostname [duplicate]

I have updated my system's hostname in /etc/hostname file as master. I have also mapped my /etc/hosts file like <ip> master Still, when I type $ hostname, I get a different hostname. I ...
0
votes
1answer
511 views

Setting HOSTNAME on startup

Our lab group just purchased a dozen or so new workstations. They're Dells, so perhaps conveniently they report their service tag with dmidecode -s system-serial-number. We're thinking of using ...
0
votes
2answers
868 views

Can exim be configured to send all emails externally?

How do I configure exim4 to route all emails via a third-party SMTP server when the sender's domain, recipient's domain, and server hostname all match? I followed this great answer and have exim4 ...
0
votes
3answers
301 views

Why does “hostname -d” gives different output than domainname?

I have joined an Ubuntu 14.04 machine to domain using samba 4 but auth is not working. Look what I get: # net ads keytab create -U 'admin' Enter admin's password: ads_get_dnshostname: No dNSHostName ...
1
vote
3answers
480 views

Error message; [IP]in-addr.arpa has no PTR record: [duplicate]

I'm trying to figure out how to find the hostnames of computers on the LAN network. I put in the known address of a computer, but I'm getting an error I don't understand. ...
1
vote
1answer
788 views

Why I got 'unable to resolve host' when I do 'sudo'?

Whenever I do 'sudo' I get an error saying 'sudo: unable to resolve host HP-Pavilion'. I recently change my hostname to "HP-Pavilion". I wonder if I screw up something. $ sudo mkdir SourceCodePro ...
3
votes
1answer
595 views

How to change the name of localhost to custom name which is available to other users in lan

I need to use the custom url name which is able to access from all devices in LAN. I know that it can be changed from the /etc/hosts file 127.0.0.1 myname 127.0.1.1 system09-System-Product-Name ...
0
votes
1answer
235 views

Can't see the Username and hostname in terminal

While I'm Opening a New Terminal i Used to get like this before sysadmin@system99:~$ But now i get like this below -bash-4.2$ Seems .bashrc issue, so what i copied bashrc from cp /etc/skel/* ...
0
votes
3answers
1k views

sudo: unable to resolve host

This makes it appear that my hostname if correct: ubuntu@webserver:~$ hostname webserver Below is the command I'm running and the output: ubuntu@webserver:~$ sudo hostname webserver sudo: unable ...
0
votes
1answer
6k views

sm-msp-queue says: unable to qualify my own domain name (xxx) — using short name

Every 20 minutes, for days, sm-msp-queue (something related to sendmail, I guess) writes a message in my ubun that goes like that: unable to qualify my own domain name (ubun) -- using short name ...
3
votes
1answer
272 views

Disable logon prompt show hostname

Per default the login prompt shows %hostname% login:. I don't want anybody with console access to see the hostname of the server that easily. How to get rid of the hostname there?