Background This article details RightScale's recommended practices to prepare for and handle AWS EC2 maintenance requests. Occasionally Amazon needs to reboot host hardware and/or reboot instances for the purpose of installing security patches and u...
Answer By default Amazon Web Services allows each AWS account to have up to five Elastic IP addresses. If you need reserve more than five Elastic IPs, you must submit a request for more Elastic IPs to Amazon. Remember, that Elastic IPs are free from...
Background Information I can upload files to my S3 bucket, but I can't figure out how to create new folders/directories inside of my S3 bucket so I can better organize items in my bucket. Answer Currently, there is no create new folder button in th...
Background When installing the X Window System on a Centos based instance, you may encounter a kernel panic error similar to this: audit(1317965535.759:2): enforcing=1 old_enforcing=0 auid=4294967295 Unable to load SELinux Policy. Machine is in enfo...
Background Information When launching a server or an instance, the server won't launch and always resulted in an error. You get a red banner showing the following error 400: AuthFailure: Not authorized for images:..... Answer Basically this is an...
Overview There are some situations in which a Server could trigger an Instance not responding alert similar to the example shown below. To: MyServer@alert.com Subject: Server Alert: critical 'MyTestServer' Instance not responding Message: This is an...
Answer HVM (known as Hardware Virtual Machine) is the type of instance that mimics bare-metal server setup which provides better hardware isolation. With this instance type, the OS can run directly on top of the Virtual Machine without additional co...
Background Information HAProxy, or High Availability Proxy is used by RightScale for load balancing in the cloud. HAProxy is installed with RightScale load balancer ServerTemplates. Load-balancer servers are also known as front-end servers. Generall...
Background Information Auto-scaling is a way to automatically scale up or down the number of compute resources that are being allocated to your application based on its needs at any given time. Before cloud computing, it was very difficult to scale ...
Background Information What does NaN mean? cpu-0/cpu-idle.value is 'nan', this is == 'NaN' for over 60.00 minute(s) on server 'X' of deployment 'Y' Answer NaN is short for Not a Number. NaN indicates that the monitoring system is not receiving any...
Overview Some customers have reported issues attempting to log in to servers from Windows PCs using the Run a Java Appletoption in the Cloud Management (CM) Dashboard (Settings > User Settings > SSH). If you are using the Chrome browser on the Windo...
Overview This guide explains how to configure WinSCP to connect to an EC2 Server in order facilitate file transfer to and from your Windows desktop. Answer Download WinSCP and install accordingly (choose double-pane view as recommended during insta...
Overview AWS provides a feature called enhanced networking for instances that results in higher performance (packets per second), lower latency, and lower jitter. This feature must be enabled on the image in order to use it with RightScale. Procedur...
Background Information CPU Metrics can be viewed in the Monitoring tab of the RightScale Dashboard. Answer The cpu metrics are a combination of many CPU values and the total of those will add up to 100%. ItemDescriptionuserCPU used by user applicat...
Background You're currently using AWS CloudFormation Templates and/or Azure Resource Manager Templates for provisioning resources and want to know what kind of support RightScale offers for these cloud-native templates. Answer RightScale Plugins all...
Background Information How do you enable .htaccess files for Apache? When you create the files in directories, they do not work. Answer You will need to modify the vhost configuration files found in /etc/httpd/rightscale.d If the server is a load b...
Background Information Servers that support Server Login Control populate their SSH authorized-keys file with multiple trusted keys based on policy received from the RightScale Dashboard, typically inserting one public key per user with server_login...
In most cases with public-facing instances, it is desirable by system administrators to allow ping reply as a basic means of verifying network response. Create a security group (or use an existing one) and add a permission for ICMP IPs with a type a...
Background Information Before you can use SSL (Secure Socket Layer) to encrypt your web traffic, you must have an SSL certificate, which you will associate with your ServerTemplate. Generally, SSL certificates used with production servers are issued...
Background Information When you initiate an SSH connection to a running server, the RightScale Dashboard lets you use a Java Web Start application, a Java Applet, or ssh:// protocol links for launching your SSH session. You can specify your SSH clie...
