What is Shared Hosting? Ways to configure the operation of virtual hosts


What is Shared Hosting? Ways to configure the operation of virtual hosts
Опубликовано: 21.07.2021


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On Internet, shared hosting is the provision of web server hosting services so that a company or individual does not need to buy and maintain their own server and Internet connection.


Shared hosting providers are sometimes referred to as web or internet space provider. Some companies that provide shared hosting service simply call it hosting. Typically, virtual hosting provides a client who needs a website: assistance with registering a domain name, multiple domain names that are mapped to the registered domain name, allocating file storage and setting up a directory for website files: HTML and graphic images files, email addresses and, optionally, website creation services. A shared hosting user should only have a File Transfer Protocol - FTP, program to exchange files with virtual host.


The newly created virtual host will have a default set of exchanges, but without other entities and user rights. For a user to connect and use virtual host, permissions on it must be granted to every user who will be using virtual host, for example using rabbitmqctl set_permissions.


When your domain controllers are running on clustered host servers, you can expect them to be fault tolerant. The same is true for virtual server deployments. However, there is one problem with this assumption: in order for nodes, disks, and other resources on clustered host computer to start automatically, authentication requests from computer must be serviced by a domain controller in computer domain. Alternatively, part of cluster host configuration should be stored in Active Directory.


The default Ubuntu OS configuration requires every virtual host file to end with .conf.


These domain controllers on different platforms must remain online and reachable over the network in DNS and on all required ports and protocols for the clustered hosts. In some cases, the only domain controllers that can service authentication requests during cluster startup are on restarting cluster host computer. In this situation, authentication requests fail and you must manually restore cluster.


When a virtual machine host takes a snapshot of virtual machine, the guest OS does not detect the snapshot as a backup. If the host supports Hyper-V Generation ID, this ID will change when the image is run from a snapshot or replica. By default, DC will consider itself restored from a backup.


Parent virtual service allows multiple certificates to be configured on this virtual hosting, and for SSL connections, the parent virtual service selects appropriate server certificate based on TLS server name requested by the client and cipher used. If server name is requested or no match is found, the first certificate configured for virtual service is used. For mutual TLS authentication, PKI profile should only be configured for parent virtual service.


Virtual hosting service for information services provides a virtual server hosting environment


Shared Hosting Service provides a managed platform for hosting Windows, Linux and Unix services on a highly resilient VMware-based virtualization platform.


Availability and access rights


The virtualization service is highly resilient and provides a stable 24x7x365 managed platform to host Windows, Linux and Unix x86 operating systems.


Shared Hosting Service Technical description


This is a description of a shared hosting service that provides information about the technology used and the suitability of service for applications. Forking configuration directs traffic from a single IP address to multiple services based on requested HTTP URI. Ingress allows you to keep the number of load balancers to a minimum.


The term virtual host refers to running practice multiple websites, such as company1.example.com and company2.example.com, on the same machine. Virtual hosts can be IP-based, which means you have different IP addresses for each site, or name-based. This means that you have multiple names running on each IP address. The fact that they run on the same physical server is not obvious to the end user.


Virtual hosting provides client terminal round-the-clock operation. The main advantages of built-in shared hosting are minimal server connection latency, ease of use, and affordable price.


Renting a server is very easy and no effort is required to manage it. Starting, stopping, canceling hosting and controlling using of virtual server resource are available immediately.


Many people use Internet to connect with friends and family. But virtual events are also a cost-effective way to connect with other professionals. During the COVID-19 pandemic, many business, networking and social media have moved online, and the virtual event industry is currently thriving.


This allows a single server to share resources: memory and processor cycles, without requiring provided services to use the same hostname. This is often used for shared hosting as many clients can be hosted on the same server, making it a cost effective solution.


As we all know, Apache is a very powerful, very flexible and customizable web server for Nix OS. Here in this tutorial, we are going to discuss another Apache feature that allows us to host more than one site on a single Linux machine. Implementing shared hosting with an Apache server can help you save costs that you invest in server maintenance and administration.


Unlike a regular virtual service or SNI virtual service, where only 2 certificates of each RSA and EC type are allowed, parent EVH allows multiple domain name certificates to be configured. TLS server name will be compared against the configured certificates and the corresponding certificate will be served on TLS connection. If there is no TLS server name or TLS server name does not match any common name, SAN, DNS information in any of the configured certificates, the first certificate in the list of certificates - default certificate - will be used for this connection.


Shared hosting is probably one of the most common technologies in hosting industry. It is a method by which one server can serve several different sites at the same time. This is what the industry has used for years to provide shared hosting that allows many customers to share server resources to host their sites.


The virtual host name is used as a way to distinguish configuration from non-physical host, in contrast to days before their existence when each site required its own physical host. Almost all modern servers support virtual hosts as a configuration option. This means that there is a chance that the desired configuration will be able to work with this technology. There are also several ways to configure how virtual hosts work. They can use domain names, IP addresses, or ports.


IP based virtual hosting


IP based virtual hosting is one of the simpler methods of use and involves configuring the server to respond to connections to different sites depending on IP address on the server from which connection is made. When hosting multiple sites on a server using this method, you must use a unique IP address for each site. Until recently, this was the only method by which you could use shared hosting with SSL n TLS encryption when connecting to a server, although creating a Server Name Identification extension for TLS means that encrypted TLS connections can now also be used with a virtual name based hosts.


Unfortunately, requirement to have an IP address for each domain means that this method of shared hosting can get expensive as due to the lack of IPv4, many providers increase their monthly fees for additional server IP addresses. Therefore, it is usually not used as often.


Port Based Shared Hosting


Port Based Shared Hosting is basically similar to IP Shared Hosting, only instead of using different IP addresses for each virtual host, server will be configured to respond from different sites depending on the port on server that incoming connection is in use. Unfortunately, this has a downside: to connect to server through a non-standard port: port 80 for HTTP and port 443 for HTTPS, site visitor will need to add the port number they want to connect to in their computer's address bar. a browser that, as something additional so that visitor does not forget to get to the site, does not help to attract traffic to site.


Name-based virtual hosts


Finally, name-based virtual hosts are probably the most common you may come across. This allows server to differentiate which site to serve based on the domain name used to connect. This works so that when the browser connects to the server, it sends a message to the server informing it of the domain name of the requested site. This feature requires a browser that supports HTTP / 1.1, but since this specification was released in 1997, virtually all browsers you come across will support name-based virtual hosts. When the domain name is submitted to the server, it can check the configuration of its virtual host and serve the correct site for the requested domain. This system downside is that if there is a problem with the domain name system for a specific domain hosted on the server, then there is no way to access the site from the server.


A workaround for this is to create another virtual host that represents all sites on the server, each as a subdirectory for a site that the server responds to when only the IP address is used, although this ensures that the website is only accessed by those who know that this link exists. This configuration method can be useful when initially setting up and testing websites before specifying domains on the server.


Hopefully you now have a better understanding of what virtual hosts are and how you can use them on your server.



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