A Technical I.T./DevOps Blog
Problem scenario
You are running Debian or Ubuntu Linux.You want to use pip to work with Python packages. What do you do?
Solution
Run these two commands:
sudo apt-get -y update
sudo apt-get -y install python-pip
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Continue reading “How Do You Install and Configure pip on a Debian or Ubuntu Linux Server?”
Problem scenario
You run an Ansible playbook on a server as a remote user that is a sudoer on that same server. But you get this error when you run the playbook: “sudo: a password is required\r\n”, “msg”: “MODULE FAILURE”, “rc”: 1}” How do you troubleshoot this error?
You want to run Bash scripts via Ansible playbooks. But these scripts will install packages and modify sensitive files. These scripts need to be run as a sudoer.
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Problem scenario
You want to use pip commands for Python packages, and you are using a SUSE server. You want to install pip on a Linux SUSE server.
Solution
Run this command: sudo zypper -n install python-pip
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Continue reading “How Do You Install Pip on an Linux SUSE Server?”
Problem scenario
You have an EC-2 instance running RedHat Enterprise Linux. You want to use the Python SDK for AWS called Boto. What should you do?
Solution
Prerequisites
Install pip. See this link if you do not know how.
Procedure
1. Run this command: sudo pip install boto3
2. You are done. The rest is optional.
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Continue reading “How Do You Install Boto 3 on a RHEL Server in AWS?”
The Elastic Stack used to be called the ELK Stack; this link provides more information.
Applied Network Security Monitoring: Collection, Detection, and Analysis by Chris Sanders and Jason Smith
The Art of Monitoring by James Turnbull
ElasticSearch 5.0 Cookbook – Third Edition by Alberto Paro
Elasticsearch Blueprints by Vineeth Mohan
Elasticsearch: A Complete Guide by Bharvi Dixit,
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Continue reading “A List of Elastic Stack (Elasticsearch, Logstash, Beat, and Kibana) Books”
We worked very hard to write an original twelve-question Big Data Quiz. Please do not expect another posting (like we normally post) for several days. Please be sure to check out the Big Data Quiz!
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Continue reading “Announcement: Big Data Quiz Now Available!”
Problem scenario
An IP address is pingable from one Linux server. On this server there are no Docker containers running. A traceroute reveals that this IP address is one hop away from your server. How do you find out what this IP address belongs to?
Solution
Use this command: ip addr show
You may also want to use this command:
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Continue reading “How Do You Find an IP Address That Is Mysterious and Elusive in Your Network?”
Big Data Quiz
1. What does EDH stand for?
a. Enterprise Data Hub
b. Extract Develop Hadoop
c. Extract Decide Haul
d. Extract Data Hadoop
2. Gartner, Informatica and MapR think “data lakes” should be referred to as what?
a. data warehouses
b. data dams
c. data mills
d. data reservoirs
3. MapReduce is to Hadoop as ___________ is to Spark
a.
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Problem scenario
You have Ansible installed as a control server (a centralized server to push down configurations to other servers). You want to use it to manage another server. How do you configure the other server to be a managed node? In other words, how do you configure Ansible to push configuration changes down to servers?
Solution
Prerequisite
Ansible must be installed.
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Continue reading “How Do You Set up Ansible for the First Time?”
Problem scenario
You want to install Jenkins on an Ubuntu Linux server without running an “apt-get upgrade” command. (You are ok with installing a “apt-transport-https” package.) What should you do?
Solution
See this posting because the directions work for Ubuntu in AWS and Debian in GCP.
(If you can run “apt-get upgrade”, and you do not want to install “apt-transport-https”,
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Continue reading “How Do You Install Jenkins 2.x on Ubuntu Linux in AWS?”