I have a remote server that runs a Web application on the JVM. I can ssh into the remote server after which I tried to use jmap to take a heap dump. But unfortunately jmap seems not to be available on the remote machine as it uses OpenJDK!
I then thought I could use JConsole from my local machine, but how could I use it to get the heap dump for a Java process that runs remote? I have the remote PID. Can I use the ssh port to first make a connection to the remote machine using JConsole?
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Hi I want to connect to remote MongoDB server without using SSH tunneling(Both the client and server systems will run on windows OS). Is there any way to connect.
I am trying to set up a server in a virtual machine using the Oracle VirtualBox. I use Ubuntu 18.04 LTS in the VirtualBox. I use PostgreSQL as my database.
In my Tomcat, I have a property file where I provide the database URL and password. I want the tomcat that is set up in the VirtualBox to be able to access a local database that is set up using PGAdmin in my Windows machine in which the VirtualBox is installed.
Is it possible to do that?
When connecting to a SQL server DB running on my host machine from a VM, I use the IP address to connect.
You can run ipconfig (or your OS's equivalent) to find the IP address of the machine serving the DB, then try to connect from your host machine via that IP address instead of the machine name.
There might be some VM-specific settings you need to tweak to allow network access between the VM and host, refer to this post for more info. Usually I have to set my VirtualBox network mode to bridged adapter.
I've installed MongoDB on my Ubuntu 16.04 VPS and allowed connections through the firewall. When I run the server using the command (mongod), it starts without a problem and I can then connect to it (using RoboMongo as test application).
However, when I run the service automatically on startup (using systemctl), I cannot connect to it. I verified it was running, and could not run it myself as the address was already in use.
Does anyone have any experience with this, or any tips on how to solve the problem? The server will be running localhost only and I'm going to be using an SSH tunnel for testing purposes, so no authentication is necessary.
Anyone?
When you started mongod did you then provide a configuration file (using the --config or -f parameter)? If not then it defaults to listening on all interfaces.
The default configuration file which is used when starting the daemon with systemctl defaults to only listen on localhost preventing it from being available on the network. This is fine if you intend to connect to the server using a tunnel.
When a remote process runs into some problem I want to be able to connect to that process with an IPython kernel for remote debugging. What is the correct way to do this on both the server and client side?
Server
How do I start an IPython kernel running in my Python process (which happens to be running a Tornado event loop.)
Communicate
What information do I need to send from the server to the client so that it knows how to connect?
Client
How do I connect to the remote IPython kernel given the connection information?
I am wondering if it is possible while using MAMP to have the database online?
I am developing a couple sites locally between work and home, and initially thought I could get mamp to store or point to my external drive. No bueno.
SO am thinking I can still run mamp at work or at home pointing to my external drive but the DB that it would connect to would be online?
Depending on your system you could set up an SSH tunnel to another computer running the database. SSH tunneling allows you to direct a port on your computer (For example port 8889 which MAMP uses by default for the MySQL port) to a port on another computer. If set up correctly, you tell MAMP that you are using local port 8889, but ssh will then direct all traffic to the remote computer's mySQL port which is where you could run your database. This link has a good tutorial on how to do this provided that you have ssh installed.