We are using cassandra enterprise editions. We have configured cluster from opscenter but we are unable to get access from Remote host. We are able to get access inside my DC from another host.
Please let me know how it can be resolved.
Note: There is no issue with firewalld.
Related
I'm trying to install oracle on AWS redhat instance. Follow the steps given on this url: http://www.davidghedini.com/pg/entry/install_oracle_11g_xe_on And when I run config command as follows
/etc/init.d/oracle-xe configure
It gives following error.
Database Configuration failed. Look into
/u01/app/oracle/product/11.2.0/xe/config/log for details
When I check the log files it shows following errors.
ORA-01034: ORACLE not available Process ID: 0 Session ID: 0 Serial
number: 0
It seems specific issue on AWS cloud instance.
Is it because of swap memory?
Or is it because of port issue?
I'm using micro instance on it.
How can I get through?
this might be an EC2 security group issue and outbound access to the network on some port being used by the installer (license check, maybe?).
if your EC2 instance is very tightly locked down, you could test if it's a security group issue by adding a new Outbound security group rule to allow all TCP traffic out to anywhere on the internet (0.0.0.0/0)
for example, the install might be trying to hit a remote licensing server endpoint via HTTP or HTTPS but your security group doesn't allow that traffic out.
perhaps there's a 'verbose' flag that you can run the installer with that can give you more info about what it's failing on? HTH
I have deplyed my local cloudfoundry instance. When I try to deploy my application , my app requires cassandra to be up and running. I have cassandra host setup on independant server. Cloud foundry throws com.datastax.driver.core.exceptions.NoHostAvailableException
Whereas when I try to ping this host from the machine on which CF is installed , Ping is successful. Even this cassandra host is accessible from my local computer and works fine with my eclipse deployment.
How can I make cloudfoundry recognize this host?
You will need to make sure that (a) your application has access to the information about the address and credentials to access the cassandra server, and that (b) networking (and maybe DNS) are such that your application instances will actually be able to reach the cassandra server.
For (a), you will want to bind your application to a "user-provided service instance". For (b), you need to make sure your application's running security groups allow it to reach your cassandra server.
I am using Neo4j graph database. Its running on Windows PC at url: http://localhost:7474/browser/. Now I want to get access to this server from machine running Ubuntu OS, so that I can access Neo4j browser and can use it for development purpose as well.
Here is what you need to do: -
Uncomment "org.neo4j.server.webserver.address" and provide a valid IP-Address on which you want to bind your neo4j http service at port 7474 in your neo4j-server.properties and restart your neo4j server.
Try accessing you Neo4j server on local machine by entering URL - http://:7474/ (Do not use localhost).
Switch off all firewalls and ensure :7474 is accessible from any remote machine. You may test it with Telnet too.
In case all the above works then you are done and your Neo4j server is accessible from remote machine.
I think you'll need to configure your conf/neo4j-server.properties file to allow access from non-localhost addresses. Here's the relevant part of my file:
# Let the webserver only listen on the specified IP. Default is localhost (only
# accept local connections). Uncomment to allow any connection. Please see the
# security section in the neo4j manual before modifying this.
#org.neo4j.server.webserver.address=0.0.0.0
I'm trying to set up a connection to a Cold Fusion 11 server with cfbuilder 3.
I'm working remotly with an rds set up.
When I start to start the server from the connection, I get this error:
Cannot start or stop myserver. Remote server settings required to start and stop server have not been provided.
I really want to connect it for having access to a debugger.
Is there any suggestion for my problem?
You need need to be running the Admin server instance in the remote ColdFusion server and then add the IP address of the machine where the CF Builder is installed to the security.properties file.
Solution:
Setup the admin server instance. Follow these guidelines
Update the security property of the remote ColdFusion server
Open the {CFHome}/runtime/lib/security.properties file and update the values of jrun.subnet.restriction and jrun.trusted.hosts with the IP address of computer where ColdFusion Builder is installed. Alternatively, you can use the asterisk wildcard (*) as the IP address value, to allow the server to start and stop without any restriction.
References:
Setting up a remote server with ColdFuison Builder 3
CF Docs - Add a remote server
CF Builder Docs
Note:
Download the AdminServerComponents.zip from here under the ColdFusion Builder 3 Development Tools.
I have a Tableau server running on EC2 instance followed steps from this documentation
Tableau Server & Amazon AWS - Installation Walkthrough
What additional information or what things i require to connect to that tableau server from a remote desktop?
please somebody guide me on this!
I am not able to understand that how would a remote computer connect to the tableau server running on EC2 instance?
Steps 3 and 4 involve creating a static EIP address and then assigning that to your AWS instance. This static EIP address is the one you use to access your Tableau Server from a remote computer.