{
"Version": "2012-10-17",
"Statement": [
{
"Action": [
"s3:PutObject",
"s3:ListBucket"
],
"Resource": "arn:aws:s3:::bucket_name*"
}
]
}
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
After aws cli configure on windows machine . we can list the bucket.
$ aws s3 ls s3://bucket_name/
#### How to Install MySQL 8.0 in Ubuntu 18.04 ####
## Step 1: Add MySQL Apt Repository
$ wget -c https://repo.mysql.com//mysql-apt-config_0.8.13-1_all.deb
# Then install the MySQL repository package using the following dpkg command.
$ sudo dpkg -i mysql-apt-config_0.8.13-1_all.deb
# Step 2: Install MySQL Server in Ubuntu 18.04
Next, download the latest package information from all configured repositories, including the recently added MySQL repository.
$ sudo apt update
# Then run the following command to install packages for the MySQL community server, client and the database common files.
$ sudo apt-get install mysql-server
# Step 3: Secure MySQL Server Installation
$ sudo mysql_secure_installation
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
##################### CREATE Database User and ALTER Password #############################
#SET GLOBAL validate_password.policy=LOW;
#CREATE USER 'india'@'%' IDENTIFIED WITH mysql_native_password BY 'SF9kh77hjjg8g';(8 ok)
mysql> ALTER USER 'india'@'localhost' IDENTIFIED BY 'SF9kh77hjjg8g';
mysql> flush privileges;
#ALTER USER 'india'@'%' IDENTIFIED WITH mysql_native_password BY 'SF9kh77hjjg8g';(8 ok)
#GRANT ALL PRIVILEGES ON * .* TO 'india'@'%';
Tomcat9 install on centos 7 and aws linux 2
sudo yum install java-1.8.0-openjdk-devel
java –version
Create Tomcat User and Group
Tomcat should not be run as root. Create a new user and group by entering:
sudo useradd -m -U -d /opt/tomcat -s /bin/false tomcat
Download Tomcat 9
Tomcat 9.0.20 is the latest version at the time this was written. A later release may be available on the official download page. Alternately, enter the following:
cd /tmp
wget http://apache.cs.utah.edu/tomcat/tomcat-9/v9.0.20/bin/apache-tomcat-9.0.20.tar.gz
Extract the .tar.gz File
To extract the Tomcat tar.gz file, enter the following:
tar -xf apache-tomcat-9.0.20.tar.gz
Move the files to the /opt/tomcat directory:
sudo mv apache-tomcat-9.0.20 /opt/tomcat/
(Optional) Create a symbolic link for updates:
sudo ln -s /opt/tomcat/apache-tomcat-9.0.20 /opt/tomcat/latest
Modify Tomcat User Permissions
The new users needs to execute privileges over the directory.
Enter the following:
sudo chown -R tomcat:tomcat /opt/tomcat
sudo sh -c 'chmod +x /opt/tomcat/latest/bin/*.sh'
Create a System Unit File
Creating a systems unit file allows Tomcat to run as a service.
1. To create a tomcat.service file, use the command:
sudo nano /etc/systemd/system/tomcat.service
2. In the file, enter the following:
[Unit]
Description=Tomcat 9 servlet container
After=network.target
[Service]
Type=forking
User=tomcat
Group=tomcat
Environment="JAVA_HOME=/usr/lib/jvm/jre"
Environment="JAVA_OPTS=-Djava.security.egd=file:///dev/urandom"
Environment="CATALINA_BASE=/opt/tomcat/latest"
Environment="CATALINA_HOME=/opt/tomcat/latest"
Environment="CATALINA_PID=/opt/tomcat/latest/temp/tomcat.pid"
Environment="CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC"
ExecStart=/opt/tomcat/latest/bin/startup.sh
ExecStop=/opt/tomcat/latest/bin/shutdown.sh
[Install]
WantedBy=multi-user.target
3. Save and close the file.
4. Refresh the system:
sudo systemctl daemon-reload
5. Set the Tomcat service to start on boot:
sudo systemctl enable tomcat
6. Start the Tomcat service:
sudo systemctl start tomcat
7. Verify that the Tomcat service is installed and running:
sudo systemctl status tomcat
Adjust the Firewall
The Tomcat service needs access to Port 8080.
Allow traffic by entering the commands:
firewall-cmd --zone=public --permanent --add-port=8080/tcp
firewall-cmd -reload
You should be able to see the Tomcat server in a web browser.
Input this web address into a browser window:
http://server_ip:8080
How to change port number of Tomcat default to 80
# cd /opt/tomcat/conf
@ Edit <Connector port="80" protocol="HTTP/1.1"
$$$ Run below command after change port number 8080 to 80 in server.xml $$$
# cd /opt/tomcat/bin
# ./shutdown.sh
# ./startup.sh
# sudo apt-get install iptables
# apt install net-tools -y
# iptables -t nat -A PREROUTING -p tcp --dport 8080 -j REDIRECT --to-port 80
# 192.168.0.10
#!/bin/bash
Java installation in Ubuntu 18.....
# sudo apt install openjdk-8-jdk
# java -version
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Create Tomcat User
# sudo groupadd tomcat
# sudo useradd -s /bin/false -g tomcat -d /opt/tomcat tomcat
# sudo apt update
Dawnload Package of Tomcat 9
# cd /tmp
# sudo wget https://archive.apache.org/dist/tomcat/tomcat-9/v9.0.21/bin/apache-tomcat-9.0.21.tar.gz
# sudo mkdir /opt/tomcat
# sudo tar xzvf apache-tomcat-*tar.gz -C /opt/tomcat --strip-components=1
# ll /opt/tomcat/
# sudo chown -R tomcat: tomcat
# sudo chmod o+x /opt/tomcat/bin/
Update Permissions
# cd /opt/tomcat
Give the tomcat group ownership over the entire installation directory:
# sudo chgrp -R tomcat /opt/tomcat
Give the tomcat group read access to the conf directory and all of its contents, and execute access to the directory itself:
# sudo chmod -R g+r conf
# sudo chmod g+x conf
Make the tomcat user the owner of the webapps, work, temp, and logs directories:
# sudo chown -R tomcat webapps/ work/ temp/ logs/
Create a systemd Service File
# sudo update-java-alternatives -l
!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# sudo vi /etc/systemd/system/tomcat.service
[Unit]
Description=Apache Tomcat Web Application Container
After=network.target
[Service]
Type=forking
Environment=JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-amd64
Environment=CATALINA_PID=/opt/tomcat/temp/tomcat.pid
Environment=CATALINA_HOME=/opt/tomcat
Environment=CATALINA_BASE=/opt/tomcat
Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'
Environment='JAVA_OPTS=-Djava.awt.headless=true -Djava.security.egd=file:/dev/./urandom'
ExecStart=/opt/tomcat/bin/startup.sh
ExecStop=/opt/tomcat/bin/shutdown.sh
User=tomcat
Group=tomcat
UMask=0007
RestartSec=10
Restart=always
[Install]
WantedBy=multi-user.target
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# sudo systemctl daemon-reload
# sudo systemctl start tomcat
# sudo systemctl status tomcat
Add Port on Firewall
# sudo ufw allow 8080
# http://server_domain_or_IP:8080
