A Technical I.T./DevOps Blog
Problem scenario
You created a Windows server in GCP. How do you obtain credentials and connect to it?
Solution
1. Make sure the firewalls allow for the connection. See this posting if you need to change that.
2. In the GCP console, go to Computer Engine -> VM Instances.
3. Go to the VM you want to connect to.
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Continue reading “How Do You Log into a Windows Server in Google Cloud Platform?”
Problem scenario
You are running Ubuntu Linux in AWS. You want to install R. How do you do this?
Solution
(These directions below were adapted from this link.)
Prerequisite
Verify you have 1 GB of RAM. Run this command: sudo dmidecode -t 17 | grep Size
If you see 512 MB in the results of the above command,
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Continue reading “How Do You Install R on an Ubuntu Linux Instance of AWS?”
Problem scenario
You want to install Scala to an Ubuntu instance of AWS. How do you do this?
Solution
Prerequisite
Verify you have 1 GB of RAM. Run this command: sudo dmidecode -t 17 | grep Size
If you see 512 MB in the output, then you will not be able to get Scala installed. You will need an AWS instance with a flavor that has 1 GB of RAM or more.
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Continue reading “How Do You Install Scala on an Ubuntu Instance of AWS?”
Problem scenario
You created a Linux VM in GCP. How do you get credentials to connect to it? What do you have to do to log in with PuTTY?
Solution
1. Make sure the firewalls allow for the connection. See this posting if you need to change that.
2. In the GCP console, go to Computer Engine -VM Instances.
3.
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Continue reading “How Do You Log into a Linux Server in Google Cloud Platform?”
Problem scenario
You have a RedHat Enterprise version of Linux. You want to install the R programming language. What do you do?
Solution
1. Run these six commands:
sudo yum -y install wget
cd /tmp
wget ftp://rpmfind.net/linux/epel/7/x86_64/e/epel-release-7-10.noarch.rpm
sudo rpm -ivh epel-release-7-10.noarch.rpm
sudo yum-config-manager –enable rhui-REGION-rhel-server-extras rhui-REGION-rhel-server-optional
sudo yum -y install R
2. This is an optional step to complete these instructions.
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Continue reading “How Do You Install R on a RHEL Instance of AWS?”
Problem scenario
You want to install Scala to a Red Hat Enterprise Linux instance of AWS. How do you do this?
Solution
1. Install Java: sudo yum -y install java-1.8*
2. Log off and log back on.
3. Run these three commands:
curl https://bintray.com/sbt/rpm/rpm | sudo tee /etc/yum.repos.d/bintray-sbt-rpm.repo
sudo yum -y install sbt
sbt new scala/hello-world.g8
4.
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Continue reading “How Do You Install Scala on a RHEL Instance of AWS?”
Problem scenario
You have recently deployed Apache Spark to AWS. You see the EC-2 instances were created. But you cannot access them over the web UI (even over ports 4140, 8088, or 50070). You cannot access the instances via Putty. You changed your normal Security Group to allow TCP communication from your work station’s IP address. What should you do to connect to your new Spark instance for the first time?
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Continue reading “How Do You Connect to Your Apache Spark Deployment in AWS?”
Problem scenario
You want to deploy Apache Spark to AWS. How do you do this?
Solution
1. Log into the AWS management console. Once in, go to this link.
2. Click “Create cluster” and then “Quick Create”
3. For Software Configuration, choose “Spark:…”
4. For “Security and access”, for EC2 key pair, choose the key pair you desire.
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Continue reading “How Do You Deploy an Apache Spark Cluster in AWS?”
Problem scenario
You try to compile a C++ program (i.e., a .cpp file). You get this message: “fatal error: pqxx/pqxx: No such file or directory.” You want to install pqxx on your Ubuntu server in AWS. What do you do?
Solution
#1 Log into the server. Run this command as root or with a sudo in front it:
add-apt-repository ppa:jtv/ppa
#Press enter in response to the prompt from the command above.
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Continue reading “How Do You Install pqxx on an AWS Instance of Ubuntu?”
Problem scenario
You want to install Docker on an AWS instance of Ubuntu. But you do not know how. How can you quickly do this?
Solution
Run these two commands:
sudo apt-get -y update
sudo apt -y install docker.io
An alternative set of directions is here. For a variety of different directions for all different types of Linux,
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Continue reading “How Do You Install Docker on an AWS Instance of Ubuntu?”