There are 3 ways like - 1. With openssl utility, install it in Linux and run below command - openssl pkcs8 -inform DER -in ppk_file.ppk -outform PEM -out pem_file.pem 2. Puttygen command in Linux sudo apt install putty-tools puttygen ppk_file.ppk -O private-openssh -o pem_file.pem 3. Puttygen in Windows, convert PPK to PEM: Launch PuTTYgen application Under File menu, click Load private key. Select your .ppk file, and then choose Open. Now, under the Conversions menu, click Export OpenSSH Key (force new file format). Set a new name with the “.pem” extension and click the “Save” button

Good

So they are trying to ask you how many web Applications youa re working on. Suppose if you have 20 Websites, all 20 will have Prod/Stage and Dev Environments, so for each Environment you will have CICD Pipeline or if you use parameterized job in Jenkins you can use 1 job only for stage and Prod whereas as that you will run manually for security reasons whereas Dev Env you can automate the pipeline on webhook push to github.

Yes...we do that. Except initial 2 to 3 projects which we think is required for student to sync with Teacher so that they practice by seeing videos and try multiple times to understand Teacher dialogue, accent because we say students that we will give first 5 days free or trial where they can understand our Trainer and if they don't like they can get the full refund.

~/test - relative path /home/ec2-user/test - absolute path

No, good try but looks like what Balaji told that is correct

Container Network Interface. This is used for setting up Pod Network in Kubernetes world. In Short PODS will communicate with each other with the help of Pod Network like Calico etc

This is a very common interview question for Docker. While writing a Dockerfile, COPY will copy the files from local host server inside to Docker Container whereas ADD can copy with Remote URL as well inside the container by downloading the file from the source URL or copying it from local server.

Check your dockerfile pls

Hi Kovid, looks like this error is because that deployment didn't happen correctly. Under webapps directory you don't have metalynx folder. Check your

yum install net-tools This command will install net-tools on the server.

Looks like you are getting error as below - The unit jenkins.service has entered the 'failed' state with result 'protocol'. Check Jenkins Version- [root@ip-172-31-91-250 jenkins]# jenkins --version Sep 12, 2022 2:51:41 AM executable.Main verifyJavaVersion SEVERE: Running with Java class version 52, which is older than the Minimum required version 55. See https://jenkins.io/redirect/java-support/ java.lang.UnsupportedClassVersionError: 52.0 at executable.Main.verifyJavaVersion(Main.java:145) at executable.Main.main(Main.java:109) Jenkins requires Java versions [17, 11] but you are running with Java 1.8 from /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.342.b07-2.el8_6.x86_64/jre java.lang.UnsupportedClassVersionError: 52.0 at executable.Main.verifyJavaVersion(Main.java:145) at executable.Main.main(Main.java:109) [root@ip-172-31-91-250 jenkins]# Solution- Jenkins New version cannot be installed with java 8 ( As per certification Matrix - https://www.jenkins.io/doc/book/installing/linux/). Install Java 11 to Install Jenkins