Java For Windows 2012 Server
Hello, Our newly built server has Windows 2012 (64 bit) with IE browser (32 bit). Can you tell me what version of Java I should install? This is a guide to configure Windows PATH system variable for Java. After this, you can execute Java commands from the Windows command line! Windows: Configure Environment Variables for Java Overview. Windows 7/8/10 or Windows Server 2008/2012; Configure Windows PATH System Variable for Java.
One of the main disadvantages of FTP for file transfer is the lack of protection and encryption means for the transferred data. When connecting to an FTP server username and password are also sent in clear text. To transfer data (especially using public communication channels), it is recommended to use more secure protocols, like FTPS or SFTP. Let’s see how to configure an FTPS server on Windows Server 2012 R2.
FTPS protocol (FTP over SSL/TLS, FTP+SSL) is an extension of the standard FTP protocol, but the connection between a client and a server is protected (encrypted) using SSL /TLS. As a rule, the same 21 port is used for connection.
Jul 22, 2016 RootkitRevealer is an advanced rootkit detection utility. SDelete Securely overwrite your sensitive files and cleanse your free space of previously deleted files using this DoD-compliant. DumpSec is a security auditing program for Microsoft Windows NT/XP/200x. It dumps the permissions (DACLs) and audit settings (SACLs) for the file system, registry, printers and shares in a concise, readable format, so that holes in system security are readily apparent. DumpSec also dumps user, group and replication information. Microsoft dumpsec utility download.
FTP over SSL support appeared in IIS 7.0 (Windows Server 2008). To make an FTPS server work, you will have to install an SSL certificate on your IIS server.
Installation of the FTP Server Role
The installation of the FTP server role in Windows Server 2012 doesn’t cause any problems and has been already described.
How to Generate and Install an SSL Certificate in IIS
Then open the IIS Manager console, select a server and go to the Server Certificates section.
In this section you can import a certificate, create certificate request, update a certificate or create a self-signed certificate. For demonstrative purposes, let’s create a self-signed certificate. (It can also be created using New-SelfSifgnedCertificate cmdlet.) When addressing a service, a warning that the certificate is issued by an untrusted CA will appear. To disable this warning for this certificate, add it to the list of trusted certificates using GPO.
Select Create Self-Signed Certificate.
In the Create Certificate wizard, specify its name and select Web Hosting type of the certificate.
A new self-signed certificate will appear in the list of available certificates. This certificate will expire in 1 year.
How to Create an FTP Site with SSL Support
Then you have to create an FTP site. In the IIS Manager console, right-click Sites and create a new FTP site (Add FTP).
Specify its name and the path to the root directory of the FTP site (in our case, it is default path C:inetpubftproot ).
In the next window of the wizard, select the certificate you have created in the SSL certificates section.
Now you only have to select the type of authentication and user access permissions.
Click Finish in the wizard window. Free download motivational videos inspirational quotes. By default, SSL protection is mandatory and used to encrypt both management commands and transferred data.
FTPS and Firewalls
When using FTP protocol, 2 different TCP connections are used, one is for command transfer and another is for data transfer. For each data transfer channel, an individual TCP port is opened, which number is selected by a client or a server. Most firewalls allow to inspect FTP traffic, and after analyzing it, automatically open the necessary ports. When using protected FTPS connection, the transferred data are encrypted and not subject to analysis. As the result, a firewall cannot determine, which port has to be opened for data transfer.
In order not to open the whole range of TCP ports 1024-65535 to an FTPS server from outside, you can specify the range of used addresses for the FTP server. The range is specified in the IIS site settings in FTP Firewall Support section.
After the range of ports has been changed, restart the service (iisreset).
The following rules are responsible for the incoming traffic in the Windows Firewall:
- FTP Server (FTP Traffic-In)
- FTP Server Passive (FTP Passive Traffic-In)
- FTP Server Secure (FTP SSL Traffic-In)
So, you will have to open ports 21, 990 and 50000-50100 (the range of ports you select) on the front firewall.
How to Test FTP over SSL Connection
To test an FTPS connection, let’s use Filezilla.
- Start FileZilla (or any other client supporting FTPS).
- Click File > Site Manager, and create a new connection (New Site).
- Specify the FTPS server address (Host), protocol type (RequireexplicitFTPoverTLS), user name (User) and the requirement to enter a password to authenticate (Askforpassword)
- Click Connect and enter your password.
- The warning of the untrusted certificate will appear (in case of using self-signed certificate). Confirm the connection.
- The connection has to be established, and the following entries will appear in the log:
Status: Initializing TLS..
Status: Verifying certificate..
Status: TLS connection established. - It means that the secure connection is established and you can transfer files using FTPS protocol.
Installing SFTP (SSH FTP) Server on Windows with..
October 2, 2019How to Approve and Decline WSUS Updates?
September 26, 2019Java For Windows 2012 Server Change Password
How to Disable NTLM Authentication in Windows Domain?
September 24, 2019Java For Windows 10
Installing a Free Let’s Encrypt TLS/SSL Certificate on..
September 20, 20190x80092004: .NET Framework Install Error on Windows Server
September 16, 2019I'm using a Windows 2012 server with 7GB of ram that is on Azure. I have installed 64 bit java on the machine.
When running the jvm, I have set the maximum heapsize to 4GB via the argument
However, when I'm running my jar, it encounter a java OutOfMemory exception. I have checked the task manager while it is running and it shows that memory used for the process peaks at around 2GB and never goes past that. This despite me setting heapsize to 6GB.
On my local PC, where I am using a Windows 7 machine with 8GM of ram, I do not encounter this issue.
I used the following commands in my java app
And it gives me the following:
Windows Server 2012
Local PC
Why is the Windows Server not allocating the full amount of memory to the JVM? Is there any setting that I am missing?
2 Answers
This is really dumb and stupid of me but I figured out the cause of it.
I had placed the memory arguments at the end of my whole command line when I needed to put it just after the java command.
i.e. Instead of
I should have used
Either the -Xmx parameter is not being considered or the process is not allowed to get more RAM from the OS.
My suggestions:
- Try using -Xmx4096m instead.
- Not familiar with Azure but I've read that there are ways to limit memory per process/shell. Could that be an issue here? (Ref: http://msdn.microsoft.com/en-us/library/aa384372(VS.85).aspx , taken from http://social.technet.microsoft.com/Forums/en-US/2ba92acf-e1b9-4a3e-8ae7-f8ac31723959/problem-with-running-java-application-into-a-win-vm-of-azure-by-using-powershell-remoting?forum=WAVirtualMachinesforWindows )
- Finally, are the Java versions exactly the same on both places? (I mean, do you need a special Java JRE on Azure?)
Note: I would've used a comment since this is not actually a solution but I don't have the points yet. I apologize if this is not the correct way to contribute.