Devops Blog – Openstack, Openshift,- Docker, Kubernetes, Swarm, Linux, Windows Stacks – Mongodb, An occasional opinion
Visits: 1795Introduction to the Dicussion about apt and yum I had the following chat after spending time getting a Rocky Linux to act as a Bind DNS Slave to a ubuntu 18 master. I did not discuss the hienous use of Master and Slave, instead I concentrated only on the differences between apt and yum …
Continue reading “Postmodern ChatGPT about yum vs apt linux package managers”
Visits: 10329Amazon Linux 2 with Git-lfs Amazon Linux offers some pre-installed extras, Like on the fly volume extension. Amazon Linux is great if you don’t have a really complicated stack. Sometimes the minimalism is too much. But installing some non-standard stuff is possible. For instance our simple project needs to work with large files stored …
Continue reading “How to install git-lfs and epel on Amazon Linux 2”
Visits: 18118Error establishing a database connection while using WordPress installed on AWS EC2 Using the Free tier EC2 server on Amazon with an active wordpress server requires a bit of work, namely that you need a script that will restart the mysqld service. However, it really help to add a swap file, not installed by default …
Continue reading “Error establishing a database connection AWS EC2 WordPress MYSQL”
Visits: 639I am using ansible and want to avoid password when installing stuff as root I usually use an AWS VC2 for development, but this time I decided to use VMware. When doing sudo Ubuntu and others ask for a password. I thought that EC2 does the passwordless elevation with keys, but found that it …
Continue reading “How to Run ‘sudo’ Command Without Entering a Password in Linux”
Visits: 1098 When you have a bunch of servers that are configured the same and need to run the same task on them you will need a tool that does that. There are several Open Source tools. I was asked to write such a script but quickly fell upon several really popular scripts. The perfect …
Continue reading “How to get a Shell Prompt from multiple servers and run commands on them ? Clush”
Visits: 3727Automating Aws with Python – boto3 I am starting to use Python instead of Bash and OpenShell. The first plan is to make a scripted Geo Web Server. The customers will launch servers in as many regions as they like. The web users will receive pages from the local server, the content can be …
Visits: 2729To install lsync on Amazon Linux fist add EPEL repositories: sudo yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm also see: http://www.marcburrows.com/using-lsyncd-with-aws/ Allow the Master Server to connect to the slave server without a password On the master server, log in through putty and run the following: ssh-keygen -t rsa You will get asked to enter the file in which …
Continue reading “How to Install and use Lsyncd on CentOS 7 / RHEL 7 / Amazon Linux”
Visits: 5611To list your resources aws route53 list-hosted-zones aws route53 list-resource-record-sets –hosted-zone-id BLABLALA –query “ResourceRecordSets[?Name == ‘example.domain.’]” Use this output as the base for rebuilding the input Json file. You can write a Jason File to input into this aws route53 change-resource-record-sets –cli-input-json –cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the …
Visits: 586 Some time we faces issues with MySQL installation on Linux machine. If we simply remove MySQL packages and re-install doesn’t fixes the issue, in that case old settings may still exists on server which again affects new install. In that case first uninstall MySQL completely from system and erase all settings of old …
Visits: 3982I would love to do this serverless, But still here is a way to use AWS S3 to receive email on behalf of your domain. One could setup the domain in SES and receive for any number of users, but still an EC2 Server would be required. A possible advantage is that Spammers can’t …
Continue reading “How to implement inbound email on Amazon AWS SES? – Stack Overflow”
Visits: 4923Vtiger WebForms don’t work, so here is a quick and needed fix. Vtiger version 5, 6 and 7 have issue creating webforms to capture leads from their website. They have added the ability to have the form work with other modules than just leads, but it still didn’t work. Install OpenSource Charming CRM. Everything …
Continue reading “vTiger 7 Webforms broken – fields, form, 500 error in – Here’s the fix for CRM”
Visits: 1595The Mongodb Community Edition is a great NoSQL solution. Below you can find directions and links to install it from a repository as well as from a Preinstalled Ec2 Server https://docs.mongodb.com/manual/tutorial/install-mongodb-on-amazon/ Configure the package management system (yum). Create a /etc/yum.repos.d/mongodb-org-3.4.repo file so that you can install MongoDB directly, using yum. Changed in version 3.0: …
Continue reading “MongoDB Community Edition on Centos and Redhat and Amazon Linux”
Visits: 709Easy way to block simple attacks from a single IP address or a a few on the same network. Until I automate the a block script, I did this manually, but first I was connected to the wrong region. There are really intelligent hacks, then there are medium intelegence hacks, and there are just …