Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [hostname]

Hostname is a label assigned to a device connected to a computer network used to identify the device.

A hostname is a label that is assigned to a device connected to a computer network and that is used to identify the device in various forms of electronic communication such as the World Wide Web, e-mail or Usenet. Hostnames may be simple names consisting of a single word or phrase, or they may have appended the name of a DNS domain, separated from the host specific label by a period (dot). In the latter form, a hostname is also called a domain name. If the domain name is completely specified including a top-level domain of the Internet, the hostname is said to be a fully qualified domain name (FQDN).

Hostnames that include DNS domains are often stored in the Domain Name System together with IP addresses of the host they represent for the purpose of mapping the hostname to an address, or the reverse process.

Source: Wikipedia.

624 questions
1
vote
0 answers

Can Linux hostname be changed without machine first being unjoined from the domain?

We are considering changing the hostname of a number of Windows/Linux machines, all of which are joined to a Windows Server 2008 R2 domain. From past experience I know that a Windows member server can be re-named without it first being un-joining…
RelentlessMike
  • 23
  • 3
1
vote
0 answers

HAproxy backend based on hostname?

I have a question about using hostnames in a haproxy backend. We have some software that runs it's own webserver. The internal url is: 192.168.x.xxx:82/Production/ I want it to be accessible from the internet. Normally not a problem. I've done this…
Ben
  • 11
  • 1
1
vote
1 answer

hostname -I platform independent?

I am using hostname -I to list all of the IP addresses for a host. I then processes this list under the assumption that it is space delimited. Is this assumption valid in general? I see that the man page says that you shouldn't make assumptions…
Mitchell Tracy
  • 133
  • 3
1
vote
2 answers

Why does hostname -i show two values?

I've set up a new VM via VMWare and it runs CentOS7. Typically, when I run hostname -i, I get the IP address of the server I'm on. However, on this new VM, I get (these values are slightly altered): hostname -i fe09:204g:s3t0:s30f:O0ef%ens192…
JacobIRR
  • 125
  • 8
1
vote
2 answers

Sendmail Centos 7 sending mail to localhost 127.0.0.1 instead of domain?

I know there is plenty of questions similar to do this none of them helped me out at all. I'd like to add that I have another domain name running on the same server called camspark.com which if I send mails to like webmaster@camspark.com I get them…
SSpoke
  • 161
  • 2
  • 10
1
vote
1 answer

Reverse DNS and Mailserver and self generated certificates

this is my first question here, so don't kill me if it sounds stupid. I don't know much about server administration, that's why we booked a managed server to host our clients. So far we have been to setup most of it but I am concerned about the…
Mtm Project
  • 13
  • 3
1
vote
1 answer

JBoss behind NAT hostname problem

My company has a JBoss cluster sitting behind a firewall that performs NAT. We forward ports to JBoss from the firewall, so that our client application can access the server. We are having trouble when JBoss replies it tells the clients to connect…
z0mbix
  • 251
  • 1
  • 3
  • 10
1
vote
0 answers

tshark not resolving hostnames

I'm trying to watch on-line to what external hosts one from my laptops (192.168.1.6) tries to access. It works - but no matter what - tshark is not resolving dest IP to hostname. Here is command I'm launching on my firewall/gateway (192.168.1.254):…
user81604
  • 11
  • 2
1
vote
1 answer

Postfix warning when sending mail: hostname does not resolve to address xxx.xxx.xxx.xxx

Every time I send an email, I get this line in /var/log/mail.warn: postfix/submission/smtpd[xxxxx]: warning: hostname does not resolve to address xxx.xxx.xxx.xxx I've obviously already Google'd the issue; my /etc/host.conf has "multi=on" as…
hcac
  • 31
  • 4
1
vote
0 answers

PCI Scan failed with SSL certificate with wrong name

I've an IIS server which is hosted around 250 + sites. I am running a PCI scan against one website and its failing with these 2 errors: Common name of SSL certificate presented on this server is for a different name Title: SSL certificate with wrong…
Vysakh
  • 13
  • 4
1
vote
1 answer

Virtual machine - DNS hostname problems on Windows Server

I have a Windows Server 2012 R2 in a local domain with an local DNS server running. My clients are configured to use this DNS server. Today, I had the problem with a client that could not log in due to network issues. I did an nslookup at the server…
bademeister
  • 11
  • 3
1
vote
0 answers

environment host urls convention and using wildcard DNS

we're setting up new hosts and environment servers on our company... creating 3 server instances... dev, stage, production we've multiple clients and multiple projects per client so this is our…
Nicolas A.
  • 11
  • 3
1
vote
1 answer

What is the 'play' host?

I tested the following on a Ubuntu machine. The command ping play results in PING play (127.0.53.53) 56(84) bytes of data. 64 bytes from 127.0.53.53: icmp_seq=1 ttl=64 time=0.029 ms 64 bytes from 127.0.53.53: icmp_seq=2 ttl=64 time=0.036 ms 64…
Michel Krämer
  • 111
  • 3
1
vote
1 answer

Postfix Hostname domainbased

I would like to excuse in advance, if my question has already been answered before but im going crazy since a week now... I'm not new to this but after a while in another job, my "skills" are totally rusty. At the moment im running a vServer with…
J.Doe
  • 11
  • 2
1
vote
2 answers

CentOS Hostname on Linode

Just getting back into Linux and my first CentOS install in nine years. So I thought I would use the Getting Started Guide to augment my 'rtfm' habits. When I got to the set hostname, I noticed that a default in the format…
Stephen
  • 123
  • 2
1 2 3
…
41 42