RDS in aws.

RDS in aws.

Three steps to launch mysql on RDS.
1.Launch.
2.Connect.
3.Manage and moniter.

step 1. launch
a. create db instance.
b. Select engine :
Select db instance from option ex : here we choose mysql from option. (amazon aurora/mariadb/postgresql/oracle/sqlserver).
c. Production :
DEV/test (mysql/amazon aurora).
d. specify db details.
click on (Only show options that are eligible for RDS Free Tier) its a db.t2.micro instance.
select :
DB Instance Identifier* : mydbname
Master Username* : myusername
Master Password : mypassword
Confirm Password : mypassword

version : 5.6.29

select default security group:
default
give DB name.

Click on launch.

can we redownload the .pem file, for a key-value pair in aws ec2 instance.

Q) can we redownload the .pem file, for a key-value pair in aws ec2 instance.
A) no. it can be downloaded only once. you  have to create new key-value pair.
ref : stackoverflow 

recover terminated instance ec2

Recover terminated instance ec2

1) login to the aws account.
2) go to the instance.
3) go to the elastic block store
a) create a volume.
b) create a snapshot.


REF : aws

AWS jenkins tomcat "ConnectException: Connection timed out"

AWS jenkins tomcat "ConnectException: Connection timed out"

Error 1.
ERROR: Build step failed with exception
org.codehaus.cargo.container.ContainerException: Failed to redeploy
Caused by: java.net.ConnectException: Connection timed out

error 2.
This site can’t be reached
xx.xxx.xx.xxx took too long to respond.
ERR_CONNECTION_TIMED_OUT

solution :

go to network and setting --> click on "deafault" name
edit indound rule.
add "cunstom tcp rule" add the custom port that you want to listen ex:8090 or 3000
save.