A Technical I.T./DevOps Blog
Problem scenario
You run a “yum-config-manager” on a Linux server, but you get an error about the command not being found. What should you do?
Possible solution
Run this: sudo yum -y install yum-utils
This should install it. If it doesn’t, you may not have a “yum” distribution of Linux. You may be using SUSE, Debian or Ubuntu Linux. Run this command to find out what family of Linux you need: cat /etc/*-release
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Continue reading “How Do You Troubleshoot “yum-config-manager command not found”?”
Problem scenario
You want to try this automation tool called Stack Storm. How do you install it on Linux?
Solution
Prerequisites
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Problem scenario
You have a server in AWS that is in a VPC. You want it to access an S3 bucket. How do you do this?
Solution
Use a VPC endpoint, specifically, use a Gateway Endpoint.
Source: https://docs.aws.amazon.com/vpc/latest/userguide/vpc-endpoints.html
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Continue reading “How Do You Securely Connect an EC-2 Instance in a VPC to a DynamoDB?”
Problem scenario
You run “conjure-up kubernetes”, but on the page “Where would you like to deploy?” you do not see an option for AWS, Azure, or GCP (Google Cloud Platform).
You see options for maas, openstack, and vsphere. But the public cloud options are missing. What should you do?
Solution
With newer versions of conjure-up, you need to first configure a public cloud.
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One or more of the following problems are happening to you:
Problem scenario #1
You run python3 setup.py install on RHEL 8.x, but you get an error message like this:
running install
error: can’t create or remove files in install directory
The following error occurred while trying to add or remove files in the
installation directory:
[Errno 2] No such file or directory: ‘/usr/local/lib/python3.6/site-packages/test-easy-install-52191.write-test’
The installation directory you specified (via –install-dir, …
Problem scenario
You want to install Puppet Master version 6.x on a RHEL version 8.x server. What do you do?
Solution
Run this script:
#!/bin/bash
# Written by continualintegration.com
yum -y update
rpm -ivh https://yum.puppetlabs.com/puppet6/puppet6-release-el-8.noarch.rpm
# rpm -ivh https://yum.puppetlabs.com/puppetlabs-release-el-8.noarch.rpm
# To install a legacy version of Puppet (3.x), comment out the first rpm stanza and uncomment out the second.
yum -y install puppetserver
ln -s /opt/puppetlabs/puppet/bin/puppet /usr/bin/puppet …
Continue reading “How Do You Install Puppet Master Version 6 on a RHEL Version 8.x Server?”
Problem scenario
The threads of the door frame hinges in your house have been stripped. The door latch is not secure to the frame now. Is there an affordable method to secure the door latch to the frame/wall?
Solution
Push a part of a cleanex or tissue paper into the hole. Use a skinny screwdriver or ice pick to jam the tissue paper into the hole.
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Continue reading “How Do You Get Screws to Remain in Place when the Holes Are Too Big?”
Problem scenario
Using the AWS Management Console, you want to view the ELBs that you have. What do you do?
Solution
Go here:
https://console.aws.amazon.com/ec2/v2/home?#LoadBalancers:sort=loadBalancerName
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Continue reading “How Do You Find the Elastic Load Balancers in the AWS Web UI?”
Problem scenario
You have a SATA hard drive. You want to copy data to a laptop via USB. What should you do?
Solution
Use a Vantec disk reader. (With IDE disk drives and Vantec disk readers for IDE drives, the disk reader can take 15 minutes before data is available.)
Vantec USB 3.0 to 2.5″ SATA HDD Adapter with case (CB-STU3-2PB) by Vantec USA …
Continue reading “How Do You Get Data from a SATA Hard Drive on to a Laptop?”
Question
You have heard the terms cognitive therapy, cognitive behavioral therapy, and behavioral therapy. What are the differences among these three things?
Answer
“If one were to view both behavior and cognitive therapies as opposite ends of a spectrum, then cognitive-behavioral theory is somewhere in between. ” Taken from http://www.drkot.com/whatare.html
Cognitive therapy involves a professional listening and understanding the beliefs of a patient.
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