Configure a VM on Tomcat

Configure a VM on Tomcat Keywords:Configure a VM on Tomcat

What is a virtual host? Virtual Hosts use special hardware and software technologies to divide a Computer Host into a "virtual" host, each virtual host has an independent domain name and IP address (or shared IP address) with a complete Internet server (WWW, FTP, email, etc.) function. Using the "virtual host" technology, each virtual host is exactly the same as an independent host. Each virtual host has an independent domain name and has a complete Internet server function. Tomcat supports the virtual host technology. It does not require additional plug-ins and is easy to configure. Preparations We will configure two virtual hosts, assuming the domain names are Www.sentom1.net Www.sentom2.net For test convenience, please go to the client's: Win2k: // winnt/system32/Drivers/etc/hosts Linux:/etc/hosts Add the following content to the file, and then check whether the two domain names are correctly resolved. 192.168.0.1 www.sentom1.net 192.168.0.1 www.sentom2.net Of course, this does not work in the production environment. You need to perform corresponding domain name resolution on the DNS. 2. tomcat installation Tomcat installation is not covered in this article. Please refer to here. Make sure that Tomcat is correctly installed. Otherwise, do not proceed with the following configuration steps. Copy the webapps directory under the Tomcat directory in the same directory. The directory name is divided into webapps 2, and then the webapps directory is renamed to webapps 1. The directory structure of Tomcat is roughly as follows: Tomcat | -- Bin | -- Common | -- Conf | -- Logs | -- Server | -- Shared ...... | -- Webpapps1 | -- Webpapps2 | -- Work Finally, write a simple HTML file for testing. The file name is test.html. The file content is as follows:   You are visiting www.sentom1.net     Place the test.html file in the tomcat/website1/root and tomcat/website2/root directories respectively, change "www.sentom1.net" in the tomcat/webbench 2/root/test.html file to "www.sentom2.net ". At this point, the preparations for the early stage have been completed, all of which are physical work. 3. configure a VM Independent IP addresses and shared IP addresses are mentioned above. This article describes the shared IP mode, in which all virtual hosts use the same IP address. Currently, this mode is used for virtual hosts provided by IDC in China. The advantage of this mode is that it saves a limited number of IP addresses. The disadvantage is that the virtual master machine can only access through the domain name but not through the IP address (in fact, it is not a disadvantage, it only has a slight impact on the access mode of users in the email system ). Another independent IP Mode is mainly used in the mail service, so we will not introduce it here. Configure www.sentom1.net VM Open the tomcat/CONF/server. xml file, delete all content between the host elements, and add the following content to the original location of the host element. Unpackwars = "true" autodeploy = "true"> Directory = "logs" prefix = "sentom1_access_log." suffix = ". txt" Pattern = "common" resolvehosts = "false"/> Directory = "logs" prefix = "sentomw.log." suffix = ". txt" Timestamp = "true"/> Configure www.sentom2.net VM Append the following content to the end of the host element. Pay attention to the changes in the value of the name attribute and appbase attribute in the host element. Unpackwars = "true" autodeploy = "true"> Directory = "logs" prefix = "sentom2_access_log." suffix = ". txt" Pattern = "common" resolvehosts = "false"/> Directory = "logs" prefix = "sentom2_log." suffix = ". txt" Timestamp = "true"/> Now you can start Tomcat and access Http://www.sentom1.net: 8080/test.html Http://www.sentom2.net: 8080/test.html If the accessed page contains the following content, it indicates that the VM has been configured successfully. Otherwise, check your configuration process and configure it again according to the document.   You are visiting www.sentom1.net You are visiting www.sentom2.net