Apache set hostname

Miles Branman

Step. Before you begin this tutorial, you should create a non-root user as described in steps 1-4 here. org How To Add New Site Into Your Apache-based CentOS Server. However, in some circumstances, it is desireable that two or more network names should resolve to the same virtual host, running the Above will build Apache Atlas for an environment having functional HBase and Solr instances. You may have a script that calls to the servers IP, instead of the hostname, to correctly function. example. The following instructions cover basic hostname network setup for generic Linux hosts. I had this same issue and I solved it using the PassEnv Apache config directive which imports an environment variable from the system shell into the Apache config environment. A reverse proxy is a gateway for servers, and enables one web server to provide content from another transparently. 0. In addition to hostname command you can also use hostnamectl command to display a Linux machine hostname. Open a terminal. resourcemanager. com hostname localhost ::1 hostname. How does Apache determine the FQDN? If I change the system hostname, Apache uses the new hostname the hostname is set at startup thanks to the script /etc Change the Hostname. 225. If you want to change or set hostname of your Linux system, simply run: $ hostname NEW_HOSTNAME Of course, you will need to replace “NEW_HOSTNAME” with the actual hostname that you wish to set. In the context of virtual hosts, the ServerName # specifies what hostname must appear in  Set the hostname for your Amazon Linux instance using a dynamic DNS provider . localdomain and change it to whatever you prefer. A hostname is used to identify your Linode using an easy-to-remember name. What is the return of the hostname command with no parameters? If you have a name inside /etc/hostname you can also use that name echo " ServerName localhost" | sudo tee /etc/apache2/conf. Perhaps the data in /etc/hosts needs to be copied to /etc/hosts. 1. For example: HOSTNAME=server01. . sudo scutil --set HostName <new host name> Type the following command to change the Bonjour hostname of your Mac: The Apache HTTP daemon supports name-based hosting so that multiple domain names can share one IP address. ny. 2 did not perform hostname validation. conf file. name> you just set. qualified. We can change the hostname of the linux operating system by using two basic methods which using the command line or graphical interface. 193. However, 5xx server errors can possibly leak the IP address as these kind of errors can appear when Apache isn’t correctly configured and your options thus isn’t in effect. Restart Apache James Server. Changing the hostname on CentOS Posted in Linux/Unix/BSD - Last updated Nov. As a reference, this article will describe how to change the hostname Red Hat Enterprise Linux 6 (RHEL 6) or CentOS 6. x, there is a device name and a host name, which seem to be different. webapp. graph. g. After changing the hostname, choose okay, then the following confirmation message will appear. name> Hostname is defined as label or name of a computer and network device. To configure your Web server with YaST, start YaST and select Network Services > HTTP Server. Introduction. The new hostname will be displayed in your ssh terminal. name> Virtual host files are what specify the configuration of our separate sites and dictate how the Apache web server will respond to various domain requests. Change HOSTNAME=vultr to your desired hostname. A man page on hostname validation has been available since 1. Changing the hostname is very easy. Check the current hostname. These commands recursively set the group permission on all files and directories in /var/www/html to read write and set user id. It updates the cPanel license. A lot of tutorials on the Internet are outdated and refer us to all kinds of different files. Normally we will set the hostname of a system during the installation process. PS. This article describes how to change a server hostname in CentOS®. On the face of it, InetAddress. localdomain 1. Apache httpd (01) Install Apache httpd (02) Use Perl Scripts Set Hostname. rm-id: For each rm-id, specify host:port of the RM web application corresponds to. Note: I wrote this article on a virtual machine using Fedora 27 with Apache 2. Apache Tomcat 6. However, if required, you can manually edit this file to add the new hostname. The problem is that a host could have lots of network interfaces, and an interface could be bound to more than one IP address. It updates the domain. It rebuilds cPanel & WHM's global cache. When the files open, set the new hostname: /etc/hostname is a simple one line file, change the name to whatever your want. If yours doesn't have it, you can install it with the following command: I would like to introduce a setting that if the setting is set to true, "useThisHostnameInstead" will be set to the hostname RS gets from the node. , 10. 04 VPS. It is recommended to use a fully-qualified domain name (FQDN) as the system hostname. 1 debian mini I also see an empty /etc/hosts. Many admins find this useful for allowing multiple users to edit files in a directory tree. It turned out to be very easy. 168. hostname. regionserver. Edit the hostname which by default is localhost. if you wish to ensure that authenticated users can only send email from their own account, you may optionally set the verifyIdentity element of the smtpserver configuration block to "true". I want to serve my website locally with my hostname. If you have not followed the getting started guide, it is recommended that you do so prior to beginning this guide. During this process, you'll learn how to serve different content to different visitors depending on which domains they are requesting. Click on a section to expand In this tutorial we will walk you through how to change your Raspberry Pi Hostname. Whichever VirtualHost is selected on the preceding basis will have its SSL configuration used to continue the handshake. For example: hostname <fully. Example Usage Solved: Hi all, Recently, my company upgrde the JIRA server to version 5. Versions prior to 1. After I change it in server. Use the vi text editor to update the /etc/cloud/cloud. You can use the hostname command to see or set the system’s host name. Then HMaster will skip reverse DNS lookup because it sees "useThisHostnameInstead" field is set in the request. xml, I'm able to go When you run this command, the set_hostname utility performs the following actions: It updates the hostname in the /etc/sysconfig/network file, and in the kernel. Change your virtual host's ServerName line to your new host name, but don't append the port number to the virtual host name. /etc/hosts maps IP addresses to host names, change the name in second line and make it SAME to the name in /etc/hostname. Version 1. The host name or computer name is usually at system startup in /etc/hostname file. 2. This tutorial explains how to install and configure the Apache web server on CentOS 5. For port-based virtual hosting, you  We're not going to cover how to set up a web server here. For e. This is a warning that occurs when starting up Apache that Apache httpd was unable to obtain a fully-qualified hostname by doing a reverse lookup on your server's In this guide, we will walk you through how to set up Apache virtual hosts on an Ubuntu 14. hostnamectl is used to change the hostname, with this tool we can change all the three class of hostname. For example, hostname. The name-based vhost with the hostname www. The following linux command will change system's static hostname to linuxconfig: $ sudo hostnamectl set-hostname linuxconfig Futhermore, check for the existence of /etc/cloud/cloud. Assume hostname for my box is: $> hostname nyfedev01 and it's fqdn is $> hostname --fqdn nyfeddev01. By default, the Raspberry Pi hostname is raspberrypi. For example, readers can probably determine whether it's thttpd or Apache, and learn  Now restart Apache and access the https site from a browser that supports SNI. Or, if there's no VirtualHost at all, it will give the same content no matter what hostname is given in the request. Computers have hostnames so that they can be addressed by a human readable name as well as by their IP address. This guide explains how to change the host name on a RHEL (Red hat) and CentOS Linux version 7. It's gibberish now, but people in my network can reach it. This can be used for both Raspbian for Robots and Cinch. Many peoples don’t care about this, and don’t change the hostname even if for example this was set to something really stupid by the datacenter that installed the system (most likely they will set this to “debian” on any debian installation, etc). Begin by checking the existing hostname using the hostname command. Warning: Server providers might deny hostname change, in such case contact the server provider. md. The hostnamectl tool will use SSH to connect to the remote system. Using the arrow keys select Set system hostname and use tab to select OK. Now in apache's httpd. resourcemanager*address resources. There are three different commands through which we can query, set and modify hostname. ) To change the hostname, issue the following command: hostnamectl set-hostname "Your-Hostname" 31. And I also upgrade my java soap client for it, and I set the proxy by : ZooKeeper is designed to store data on the order of kilobytes in size. Normally, each such network name would be configured as a separate Host element in conf/server. 2 and up contain support for hostname validation, but they still require the user to call a few functions to set it up. sudo hostnamectl set-hostname persistent-hostname 6. Confirm that the hostname is set by running the following command: hostname -f. In this post, I will show you how to serve multiple websites using a single instance of Apache. Change the hostname using hostnamectl. Apache Atlas needs to be setup with the following to run in this environment: Configure atlas. Name-based virtual hosting also eases the demand for scarce IP addresses. http Class HttpHost (InetAddress address, String hostname Returns the inet address if explicitly set by a constructor org. For example, is it OK to configure the apache server to redirect the browser to port 8080, or do you need it to proxy the request through to the other server? – Henning Makholm Aug 19 '11 at 22:43 any redirect on apache would be ok. Agreed, but the database contains much of what the user wishes to preserve. In my last post, I explained how to configure an Apache web server for a single website. 04 Bionic Beaver. This should return the <fully. storage. It requires 24-48 hours to get new hostname propagated through all the DNS servers. com), you can set the system hostname so your instance identifies itself as a part of that domain. It updates the server's Apache® configuration. 04 we can change the system hostname and related settings using How to Install WordPress with Apache on Ubuntu 18. 7, is a label given to a device that is connected on a network. How do I set the fully qualified hostname on CentOS 7. Step 5: Check your hostname. reported. Background. (We’ll briefly cover transient and pretty hostnames in a bit. You can easily change it to whatever you want in both Desktop & Server by editing the hosts and hostname files. In this article we will discuss how to set and modify hostname on CentOS 7 & RHEL 7. domain. 04 system. May 24, 2017 In this tutorial, I am going to demonstrate how you can set up and configure First, you need to navigate to C:/xampp/apache/conf/extra or . lock. You do not need this if you set yarn. Jun 22, 2015 basic tutorial for newbies is setting up or change default hostname to Fully Qualified Domain Name hostnamectl set-hostname servedby. 0? I have seen a few posts online for example using: $ sudo hostnamectl set-hostname nodename. host Single hostname that can be set in place of setting all yarn. yarn. e  Mar 29, 2018 Modern web servers, including Apache, use the hostname portion of the need to set up the original website, a name-based virtual website. If you need to know the name of your Ubuntu computer, this post shows you several ways to find it. com is the FQDN of your machine. But I am still getting apache errors and flapping on the service going up and down. This particular approach is temporary and will reset itself after your Mac reboots though, so if you want a permanent hostname change, use the above command instead. with the hostname www. Restart Note: After you've installed your SSL/TLS certificate and configured the server to use it, you must restart your Apache instance Things like setting your server hostname, timezones and other settings need to be done initially for the server to operate properly. domainname. If you have a public DNS name registered for the IP address of your instance (such as webserver. Here we look only static hostname. http. We will will also show you how to easily change your host name. Use the instructions on this page to use OpenSSL to create your certificate signing request (CSR) and then to install your SSL certificate on your Apache server. Verified and Tested 8/25/15. 22 and host name is ubuntuserver. com and its ip address is 10. Before changing the hostname, let’s check the current hostname. hostnamectl. For example, I play around with Apache configs a lot, and there is a benefit for me to setup separate configs for localhost or hostname. If Apache has been serving Web pages from your virtual host using the old host name, your IP address and port number are already included in the opening VirtualHost brackets and resemble the following example: In order to change or set a CentOS 7 machine hostname, use the hostnamectl command as shown in the below command excerpt. In Ubuntu 17. You might want to change it if you have more than one Pi, or just to make your Pi your own. If you liked this post, on how to change hostname on CentOS and Ubuntu, please share it with your friends on the social networks using the buttons on the left or simply leave a reply below. [SPARK-5078] Optionally read from SPARK_LOCAL_HOSTNAME … Current spark lets you set the ip address using SPARK_LOCAL_IP, but then this is given to akka after doing a reverse DNS lookup. Hi guys, i've a question for you, excuse my inexperience. This hostname will be visible on the network. cfg configuration. Changing a host name effectively changes  This implicitly set server name can lead to counter-intuitive virtual host handled by the global server configuration, regardless of the hostname or ServerName. conf or any apache config files. tabadmin stop. conf does not match the hostname in the superblocks of the array members. 2014/07/13 : The example for setting Hostname of your system. 29. Let's say my hostname is >hostname ABCabcABC And, if my local people open a brow You actually don't need any ServerName directives in httpd. httpclient Class HttpHost (String hostname Value -1 can be used to set default protocol port Setting up your hostname and Fully Qualified Domain Name (FQDN) can be a bit of a challenge. d/fqdn. xml, each with its own set of web applications. Put the following in /etc/hosts: # IPv4 and IPv6 localhost aliases 127. Note: The changes are not instant. 2. First  Jul 27, 2011 When Apache recives a request, it looks for the hostname entry in the Modify the httpd-vhosts. In such cases, it's helpful to add the  The hostname of your server should be a subdomain like as this will cause problems later with your mail setup. rm-id. This has the effect of having the files and directories inherit their group and permission from their parrent. 17, 2007. I am trying to configure a virtual host in Apache 2. In particular, Tor will create a file here named hostname which will tell you the onion URL. Best practice is to use the hostname because future migrations may change IP addresses/ranges. 04 Trusty Tahr. If Fluentd is used to collect data from many servers, it becomes less clear which event is collected from which server. Hi, I'm trying to change hostname on the tomcat server from localhost to my server name. How to Set Hostname on CentOS. local is considered a fully qualified domain name (FQDN). PassEnv HOSTNAME Header set X-Which-Host-Am-I "%{HOSTNAME}e" Fortunately for me I found that HOSTNAME was already set in my system shell environment. apache. yarn Note: Changing the hostname by using the hostnamectl command doesn't update the /etc/hosts file. First, we Next, set read permissions to the Apache root directory i. Open the terminal application and type the following commands to set or change hostname or computer name on Ubuntu. After you restart or reboot the EC2 instance, run the Linux hostname command without any parameters to verify that the hostname change persisted. Run the following command to check your new hostname: hostname. ETA: So, step by step for a normal connection: Unlike CentOS/RHEL 6, manually appending HOSTNAME=xxxxx in the file /etc/sysconfig/network and restarting system will not work on CentOS/RHEL 7, in order to change/set the hostname. Hostname appears in the backup configuration file /etc/lvm/backup/<your Volume Group>. Prerequisites. If set, overrides the hostname set in yarn. master", is it a good name? How to change hostname in tomcat configuration. How To Configure Apache 2 It is important to read the documentation distributed together with the Apache server. conf file, can I specify virtualHost ServerName's value as hostname value as below? This simple and brief tutorial is going to show you how to change the Hostname / Computer name in Ubuntu 14. sudo hostname new_hostname. 91. Setting the Mac hostname or computer name from the terminal. atlas. # If this is set to a low value (default is 3), concurrent operations might fail with a PermanentLockingException. Change a server’s hostname If the client sends a hostname along with its TLS handshake request, Apache will compare this TLS hostname to the ServerName ServerAlias of the candidate VirtualHost set determined in the preceding steps. with retries set to 10, upto 100 threads can concurrently create types in the Atlas system. Yet, it work at times. If the hostname setting is incorrect on your CentOS/RedHat/Fedora machine, it's really easy to change the hostname from the command line. keyspace_name newhostname Confirm that the hostname is set by running the following command: hostname -f. If you set it up correctly, you will access the site without any warnings or problems  Sep 18, 2013 Apache accidental DNS hostname lookups the netblock that the IP address is part of have the ability to set up a PTR (pointer) record, or not. That combination of hostname and . The default hostname for your Raspberry Pi is raspberrypi. 4. mydomain. Set the Hostname. org (from our name-based example, setup 2)  May 9, 2009 Also, make sure your box name IS what you are trying to set it to in Apache. 0 Version 6. Specifically, we’ll walk through the process of setting up to run a single Solr instance on a Linux host and then provide tips on how to support multiple Solr nodes running on the same host. 53, Apr 2 2017 This class must implement the org. As with a standard proxy, a reverse proxy may serve to improve performance of the web by caching; this is a simple way to mirror a website. Some software such as cPanel® requires a valid fully qualified domain name (FQDN) for the hostname to be used during their licensing verification system. The text user interface of NetworkManager is installed by default in CentOS-7-x86_64-DVD-1511. keytool option allows you to specify all the DNS names and/or IP addresses that will be allowed during hostname verification (but see below for how to skip hostname verification between Solr nodes so that you don’t have to specify all hosts here). host newhostname. miorg. Use the "hostname" command to set the hostname on each host in your cluster. tabadmin set recommendations. The snippet I attached works for what I want it to do, but if I can have it deduce the server's domain name only -- without the hostname -- then I can use it anywhere without modification. $ sudo vi  Jul 26, 2018 My test box IP address is 192. Change Hostname in CentOS 7. ZooKeeper Commands: The Four Letter Words. This will change the hostname of your system immediately, but there is one problem – the original hostname will be restored upon next reboot. How to change or get a server hostname on Plesk server? Answer. com . If the name isn't listed as a ServerName/ServerAlias in the apache configuration, apache will always give them the first VirtualHost listed. This results in a boost in throughput, but opens up full access to the data tree to everyone. Changing the hostname on CentOS and Ubuntu is an easy task if you followed this guide carefully. Results in default ports for ResourceManager components. The username is optional. If you have two or more Raspberry Pi devices, you might want to change the default hostname so you can differentiate between devices and prevent name conflicts. When you run this command, the set_hostname utility performs the following actions: It updates the hostname in the /etc/sysconfig/network file, and in the kernel. Also see the X509_check_host(). How to Change Your Linux Hostname Without Rebooting Lowell Heddings @lowellheddings September 1, 2010, 6:00am EDT If you’ve worked in the admin world for any length of time, you’ve probably run into an instance where you needed to change the hostnames on your server to match some corporate naming standard, but you can’t have downtime either. [1] How to change hostname on CentOS Linux Posted by Curtis K in Administration , CentOS 5 , CentOS 6 , Networking , Quick Tips Aug, 04 2012 3 Comments This quick tutorial will describe how to change the hostname on your CentOS Linux server. Type the following command to change the primary hostname of your Mac: This is your fully qualified hostname, for example myMac. com hostname localhost where hostname. Then I ran at tabadmin configure and restarted the server ( like below) But I am still getting apache errors and flapping on the service going up and down. Don't you suppose that by installing a new VCSA with the new hostname and restoring the database would accomplish exactly what is desired? The static hostname is the default hostname the kernel references during boot, and in most instances, will be the one you want to concern yourself with. After installation , open the Apache configuration file. local if I am using NameVirtualHost in Apache. What if you want a different hostname or you want to avoid hostname conflicts on your local network? Read on as we show you how to quickly change the hostname of a Linux-based device. If you are unable to configure DNS and Reverse DNS, you must edit the hosts file on every host in your cluster to contain the address of each of your hosts and to set the Fully Qualified Domain Name hostmane of each of those hosts. In this tutorial, I’ll show you how to permanently set up your hostname and FQDN on CentOS so that the following commands work as expected: This file also contains your hostname. Open the /etc/sysconfig/network file with your favorite text editor. i'm trying to send an email with my jsf application and i've tried to do it with jakarta commons project, but there is a thing a don't understand. the only requirement is :lets say the app is called hostname/application, I dont want the users to go to a url Change Hostname hostnamectl command can also be used to set new or update the current hostname on Ubuntu 18. The default name was set when you were installing Ubuntu. 3 Configuring Apache with YaST. It restarts MySQL®. In this tutorial we will walk you through how to change the name of your robot when using our software. org. ZooKeeper responds to a small set of commands. These documents are usually kept in directory " <APACHE_HOME>\manual " or " <APACHE_HOME>\htdocs\manual " (where <APACHE_HOME> denotes your Apache's installed directory). skipACL (Java system property: zookeeper. On a system that is using md on the root device boot will fail once update-initramfs -u is run if the hostname in /etc/mdadm/mdadm. commons. In this article, we discuss how to change your server’s hostname in CentOS 6. If set to true (default), file fetching will use a local cache that is shared by executors that belong to the same application, which can improve task launching performance when running many executors on the same host. It updates cPHulk. This post will cover how to set the server hostname on CentOS. Thanks. A hostname is a label that identifies a machine on a network and should be unique within the network infrastructure. For Linux, the new system host name is normally defaulted the hostname to localhost. Using the hostname can save you a lot of time in the long run, depending on your infrastructure and coding. to. Name-based virtual hosting is usually simpler, since you need only configure your DNS server to map each hostname to the correct IP address and then configure the Apache HTTP Server to recognize the different hostnames. WEB Server. retries=10 # Milliseconds to wait before evicting a cached entry. hostnamectl nmtui nmcli Types of Hostname that we can Change your Raspberry Pi's hostname. All configuration will be done through the terminal; make sure you are logged in as root via SSH. Feb 25, 2014 In Ubuntu, virtual hosts are setup to work by default. The OS is responsible for the hostname, SSL, etc. skipACL) Skips ACL checks. Without restarting your machine, just run the command below to restart hostname service to apply changes: The default hostname for the Raspberry Pi is, creatively enough, “raspberrypi“. Hostname canonicalization, as discussed above, can hide the hostname on any 4xx client errors. A proxy server is one which forwards client requests to another server instead of fulfilling them itself. Using SSH for Windows 10, 7/8, and Mac OS X which has an option to Set system hostname. com. This makes it difficult to run spark in Docker. set the authRequired element of the smtpserver configuration block to "true". The hostname is set at the time when the Ubuntu operating system is installed or if you are spinning up a virtual machine it is dynamically assigned to the instance at startup. tabadmin set external_cache. 04. conf for the server to take cognizance? My hostname: $ hostname debian ~]# hostnamectl set-hostname -H [username]@hostname Where hostname is the remote host you want to configure. Your Linode’s hostname doesn’t necessarily associate with websites or email services hosted on the system, but see our guide on using the hosts file if you want to assign your Linode a fully qualified domain name. hostname (see "Graph persistence engine - HBase" in the Configuration section). If set to false, these caching optimizations will be disabled and all executors will fetch their own copies of files. sudo apt-get install landscape-server rabbitmq-server apache2 after the hostname (e. Jun 24, 2017 In this article, we will show you yet another useful Apache security tip that shows how to change HTTP web server name to anything else in  This can be achieved by installing Apache mod_security module. By default, your server is started with the server’s given name as the hostname. address. You can also set a temporary hostname change by using the following command:. 4 on a linux box. This brief tutorial is going to show you how to configure CentOS 7 hostname as well as it fully qualify … Continue reading "How To Set CentOS 7 Fully Qualify Hostname Or Domain Name" This section provides guidance on how to setup Solr to run in production on *nix platforms, such as Ubuntu. To avoid problems with name servers or proxies who cached the old IP address for the name-based vhost we want to provide both variants during a migration phase. domainname However, running domainname returns then I used tadadmin set commands to change the configuration lines that when the old hostname. I guess I must have been hallucinating. apache Regardless of the case used to specify the hostname, Tomcat will convert The tutorial will explain about how to set hostname and FQDN on CentOS 7 and RHEL 7 (Red Hat Enterprise Linux 7). The following steps outline how to change the hostname in Debian 9. policy to HTTPS_ONLY. 1 hostname. org (from our name-based example, setup 2) should get its own IP address. Below is how: 1. . [root@localhost ~]# hostname localhost. Changing the System Hostname. Doing reverse DNS hostname lookups on every request in apache (to have those domain names in the log file) is a bad idea as it will slow your server down, everybody seems to agree on that. If you have entered the wrong hostname during  By default Apache listens for incoming connections on port 80 . getLocalHost() should give you the IP address of this host. And to top that, not all IP addresses will be reachable from off the machine Objective. conf as shown below to setup named-based  Mar 11, 2012 VirtualHosts allow Apache to map a hostname to a directory on the filesystem. x server using command line tools. When starting the module for the first time, the HTTP Server Wizard starts, prompting you to make a few basic decisions concerning administration of the server. To configure an Apache HTTP server as a reverse proxy, forwarding requests for a given set of URLs to another server. Setting a Temporary Hostname Change. "hbase. It’s import to set a correct hostname and FQDN, especially for a newly set up system which almost certainly connected to Internet. # hostnamectl set-hostname your-new-hostname. You can set up as many VirtualHosts as you need, so that each  Apr 23, 2019 List installed Apache modules · Access an application using only a single domain with You can also change your hostname by modifying it in your hosts file. 5:3232); Ensure a strong password is set for user landscape  Apr 22, 2018 One of the essential tasks for a system administrator is to know how to change the hostname. Your server has multiple hostnames that resolve to a single address, and you . To begin, we will need to set up the directory that our virtual hosts will be stored in, as well as the directory that tells Apache that a virtual host is ready to serve to visitors. Well, I could have sworn when I ordered this VPS that I entered the hostname I wanted in the order form. localdomain, with no domain part of the FQDN (Fully Qualified Domain Name). If the file exists Set the 'ServerName' directive globally to suppress this message Syntax OK This is the /etc/hosts file: $ cat /etc/hosts 127. If the hostname is as you desire you can choose OK. Add a new line with the IP address and the new hostname. Notably, the This tutorial will guide you through the process of changing the hostname on an Ubuntu 18. In our previous post “How to change hostname on CentOS and Red Hat“, we have already define the difference between hostname and FQDN. iso image, base install. servermom. cfg file on your RHEL 7 or CentOS 7 Linux instance. Apache is configured by placing configuration directives, such as Listen and ServerName: Set to your DNS hostname, or IP address (to find out your IP  Jun 3, 2018 The hostname is set at the time when the Ubuntu operating system is installed or if In Ubuntu 18. 1 localhost 127. apache set hostname

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