1.Prepare a Linux server. See System Requirements for more details.

2.Log in to the Linux server as the root user.

Note: Front Server has dependencies on several third-party packages. Before you install the Front Server, run the yum install glibc.x86_64 glibc.i686 libstdc++.x86_64 libstdc++.i686 libuuid.x86_64 libuuid.i686 pam.x86_64 pam.i686 -y command to install these third-party packages. Make sure the server has access to the Internet and the yum command has been installed.

Note: If you are using RHEL 7.0 or CentOS 7.0, the operating system will be upgraded to version 7.5 automatically after you run the above command to install the third-party packages.

3.Run the mkdir command to create a directory under the /opt directory to place the Front Server installation package. For example, netbraintemp.

4.Obtain the netbrain-frontserver-linux-x86_64-rhel7-7.1a2.tar.gz file from NetBrain, and then copy it to the /opt/netbraintemp directory.

▪Option 1: If the Linux server has no access to the Internet, upload the netbrain-frontserver-linux-x86_64-rhel7-7.1a2.tar.gz file to the /opt/netbraintemp directory by using a file transfer tool.  

▪Option 2: If the Linux server has access to the Internet and the yum command has been installed:

1)Run the yum -y install wget command to install the wget command if it has not been installed.

2)Run the cd /opt/netbraintemp command to navigate to the /opt/netbraintemp directory.

3)Run the wget <NetBrain IE 7.1a Front Server download link> command under the /opt/netbraintemp directory to directly download the netbrain-frontserver-linux-x86_64-rhel7-7.1a2.tar.gz file to this directory.

Tip: Contact NetBrain Support Team to get the download link address.

Note: The download link is case-sensitive.

5.Run the tar -zxvf netbrain-frontserver-linux-x86_64-rhel7-7.1a2.tar.gz command under the /opt/netbraintemp directory to extract installation files.

[root@localhost netbraintemp]# tar -zxvf netbrain-frontserver-linux-x86_64-rhel7-7.1a2.tar.gz
FrontServer/
FrontServer/fix_releaseinfo.json
FrontServer/frontserver.tar
FrontServer/install.sh
FrontServer/install_frontserver.conf
FrontServer/uninstall.sh

6.Run the cd FrontServer command to navigate to the FrontServer directory.

7.Modify the following arguments in the install_frontserver.conf file located under the FrontServer directory and save the changes. For how to modify the configuration file, see Appendix: Editing a File with VI Editor for more details.

#NetBrain frontserver config file
SystemUser                         netbrain 
SystemGroup                        netbrain 
InstallPath                        /opt/netbrain/frontserver

▪SystemUser — the system user created on the Linux server to run the Front Server service. Keep the default name as it is.

Note: The value of the SystemUser and SystemGroup arguments cannot contain any of the following special characters:
{ } [ ] : " , ' | < > @ & ^ % \ and spaces

Note: If you modified the default umask value, make sure this system user has the read and execute permissions to the directory (including its parent directory) where the Front Server is installed.

▪SystemGroup — the system group created on the Linux server to run the Front Server service. Keep the default name as it is.

▪InstallPath — the storage path for all binary and other installation files of the Front Server.

Note: Don't set the InstallPath argument under any personal directories, such as /root, or contain any special characters or spaces except slashes (/).

Note: If you modified the default umask value, you must run the chmod o+rx /opt/netbrain command to assign the read and execute permissions of the /opt/netbrain directory to the system user that you specify in SystemUser.

Note: Make sure the destination directory has more than 1GB free space to save all the files. You can run the df -h command to check which directory has been mounted to a large disk.

8.Run the ./install.sh script under the FrontServer directory to install the Front Server.

[root@localhost FrontServer]# ./install.sh
Linux localhost.localdomain 3.10.0-327.el7.x86_64 #1 SMP Thu Nov 19 22:10:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Check the environment
Start installing the Front Server
It may take a few minutes to install the Front Server. Please wait.
Created symlink from /etc/systemd/system/multi-user.target.wants/NetBrainFrontServer.service to /usr/lib/systemd/system/NetBrainFrontServer.service.
Successfully installed the Front Server.

Note: The Front Server service will not be automatically started until it is successfully registered. You cannot register a Front Server immediately until adding the Front Server to a Tenant.

9.To install more Front Servers for load balancing, repeat the above installation steps on separate machines.