HarshaVardhanAcharyAthaluri / HarshaVardhanAcharyAthaluri.github.io

This is all about My Tech Experiments and Learning.

MyExperimentsKeyPoints

This repository for my tech observations and listing out my key notes

SSL KEY SOFTWARE

If you want to insatll any ssl in java key store i got a good open source key store software. portecle-1.11

TOMCAT HANGING ISSUE

If the tomcat was hanged in the stopping position while you are running tomcat as awindows service below command will help you
sc queryex - list all services in windows
sc queryex tomcat8 - list tomcat details find the processid of tomcat
taskkill /PID 2340 /F

Open JDK Github URL

https://github.com/ojdkbuild/ojdkbuild

Tomcat SSL browser trusted

Generate Keystore:

C:\localhostCerts>keytool -genkey -alias server-alias -keyalg RSA -keypass welcome -storepass welcome -keystore localhost.jks

keytool -export -alias server-alias -storepass welcome -file server.cer -keystore localhost.jks
you will get below message
Certificate stored in file <server.cer>
refer:
http://javakafunda.blogspot.com/2012/04/how-to-configure-tomcat-to-support-ssl.html
for javakeytool anf ssl #https://sites.google.com/site/ddmwsst/create-your-own-certificate-and-ca

Making windows target machine accesble.
winrm set winrm/config/client/auth '@{Basic="true"}'
winrm set winrm/config/service/auth '@{Basic="true"}'

Generating Certificate and key from existing keystore

certifictae
openssl pkcs12 -in keystore.p12 -nokeys -out server.crt
key
openssl pkcs12 -in keystore.p12 -nodes -nocerts -out server.key

Generating keystore from existing crt and key

openssl pkcs12 -export -in server.crt -inkey server.key -out keystore.p12

When oracle sql* plus not showing properly

set lines 256
set trimout on
set tab off

Certificate generation with openssl

The following commands are needed to create a root certificate:
openssl genrsa -des3 -out rootCA.key 2048
openssl req -x509 -new -nodes -key rootCA.key -sha256 -days 1024 -out rootCA.pem
The following commands are needed to create an SSL certificate issued by the self created root certificate:
openssl req -new -nodes -out server.csr -newkey rsa:2048 -keyout server.key
openssl x509 -req -in server.csr -CA rootCA.pem -CAkey rootCA.key -CAcreateserial -out server.crt -days 500 -sha256 -extfile v3.ext
The referenced v3.ext file should look something like this:
authorityKeyIdentifier=keyid,issuer
basicConstraints=CA:FALSE
keyUsage = digitalSignature, nonRepudiation, keyEncipherment, dataEncipherment
subjectAltName = @alt_names
[alt_names]
DNS.1 = acme-site.dev
DNS.2 = acme-static.dev
In order to bundle the server certificate and private key into a single file the following command needs to be executed:
openssl pkcs12 -inkey server.key -in server.crt -export -out server.pfx

Liked color Schema

rgb(0, 133, 161)

Dummy json api

https://jsonplaceholder.typicode.com/users

Gain a token from postman by importing below curl

curl "https://localhost:8443/uaa/oauth/token" -i -X POST -H "Content-Type: application/x-www-form-urlencoded" -H "Accept: application/json" -d "client_id=admin&client_secret=adminsecret&scope=scim.write&grant_type=client_credentials&token_format=opaque"

Oauth token from postman

Key	value
url	https://localhost:8443/uaa/oauth/token
Method	Post
headers	Content-Type:application/x-www-form-urlencoded Accept:application/json
Request Body	client_id:admin client_secret:adminsecret grant_type:client_credentials

OKTA + PCF

https://docs.pivotal.io/p-identity/1-10/okta/config-okta.html

CF ERROR -> Response issue time is either too old or with date in the future, skew 60

Just add the property responseSkew to the WebSSOProfileConsumerImpl and SingleLogoutProfileImpl beans:

<bean id="webSSOprofileConsumer" class="org.springframework.security.saml.websso.WebSSOProfileConsumerImpl">
    <property name="responseSkew" value="600"/> <!-- 10 minutes -->
</bean>

<bean id="logoutprofile" class="org.springframework.security.saml.websso.SingleLogoutProfileImpl">
    <property name="responseSkew" value="600"/> <!-- 10 minutes -->
</bean>

to share quick video demo and convert to gif https://www.screentogif.com/

Taiko

Taiko is a free and open source browser automation tool built by the team behind Gauge from ThoughtWorks.

Uaa Specifications(UAA.yml config details)

https://github.com/cloudfoundry/uaa-release/blob/develop/jobs/uaa/spec

Check My Repositories HarshaVardhan's GitHub